Saalfield SEE Skyskootor
Joseph Sabath, Philadelphia.
1932 = Two paddle-wheels of helices and a motorcycle engine reportedly got this contraption going almost 150mph. No other data found, but that alone is impressive, especially if it was in the air!
Richard Sabey, CA.
SX-1 1970 = 2pClwM rg; Lycoming O-290-G4; span: 30'0" length: 21'6" v: 234/145/x. Home-built using parts of Culvers PQ-14 and V, and Cessna 150. Cost of construction: $2,500. POP: 1 [N25RS].
1983: Sabreliner Corp, Perrywille MO on acquisition of rights and tooling from Rockwell Intl. SEE ALSO North American.
Sabreliner [N4060K] (Sabreliner)
No new production, as an OEM support facility for all military and civil NA-Rockwell Sabreliners and their engines. 1960 TC (A2WE) reissued to Saberliner Corp in 1983 to cover active Model 265s.
S A C
Southern Airmotive Corp, Dothan AL.
Special 1950 = 1pOB; 85hp Continental C-85; span: 20'4" length: 16'2" v: 130/118/43 range: 350; ff: 2/14/50 [N3900x]. POP: 1, as aerobatic Roberts Special (p: Charles Roberts).
Horace E Sackett, Gobles MI.
J-1 Jeanie 1955 = 1pClwM; 90hp Franklin 4AC; span: 23'0" length: 19'11" load: 700# v: 120/105/55 range: 200; also with 65hp Lycoming O-145-B2; v: x/90/40. Modified wings and tail from Piper J-3; tricycle gear, strut-braced wing [N33130].
(William) Sadler Aircraft Co, Scottcdale AZ.
A-22 Lasa 1989 = 1pCmwM rg; 300hp Chevrolet V-6 pusher. span: 22'0" length: 15'8" load: 1300# v: 190/x/72 range: 300; ff: 10/8/89. POP: 1 [N22AB]. Light-armed, twin-boom surveillance aircraft.
Safety SEE Arrowhead and Capelis
Master Air Pilots Inc, Rockford IL.
SW-1, -2 1937 = 2pCM; 40hp Continental A-40. POP: 1, modified as SW-2 with 60hp Milwaukee Tank [NX18220].
Saginaw SEE Carr
Clarence & Raymond Sagstetter, Wausau WI.
1935 = 1pOM; 30hp Sagstetter. POP: 2 ultralights with identical specifications, and home-built (or modified) engines, but with serial numbers enigmatically rearranged:  c/n 15207 registered to Raymond,  c/n 12570 to Clarence.
James T Robinson, 1723 W 29 Place, Los Angeles CA.
Firefly 1929 = Reported as being a near-duplicate of JT-1, credited first as Robinson-Christensen-Wright Firefly, but apparently not completed by that team and finally finished by Robinson; sold in 1930. ( John M Jarratt 3/19/02)
JT-1 1929 = 3pOB; 90hp Curtiss OX-5; span: 30'0" length: 22'0". [X468E]; reg expired 9/1/35.
1917: St Louis Aircraft Div, St Louis Car Co, St Louis MO, as subcontractor for Curtiss JN-4. 1929: St Louis Aircraft Co, 8000 N Broadway, St Louis MO. 1940: (pres: E B Meissner). 1946: ended operations.
St Louis C2-60 as C2-110 [NC951K] (Frank Rezich coll)
C2-60 Cardinal 1929 (ATC 273, 2-92) = 2pChwM; 60hp LeBlond 5D; span: 32'4" length: 20'7" load: 600# v: 105/90/35 range: 500. $3,700; POP: 10, with 1 later converted to C2-85 [903K], 1 to C2-90 [NC31H], and 1 to C2-110 [NC951K]. Original (2-92) superseded by (273).
C2-65 1929 = Modified C2-60 [C1111].
St Louis C2-85 Cabin (Dan Shumaker)
C2-85 Cardinal 1930 (ATC 350) = 2pChwM; 85hp LeBlond 5DF; length: 21'0" load: 580# v: 116/98/40 range: 490. $3,750; POP: 1 [NC559N].
C2-90 Senior Cardinal 1929 (ATC 264) = 2pChwM; 90hp LeBlond 7D; length: 21'3" load: 545# v: 118/102/40 range: 300. Harry McKay. $3,750; POP: 6, with 1 converted from C2-60.
C2-100 Super Cardinal 1929 = 2pChwM; 110hp Warner Scarab. POP: 1 conversion [X12319] for factory tests.
C2-110 Super Cardinal 1929 (ATC 277, 2-188) = Plush version of C2-90 with 100hp Kinner K-5; span: length: 20'6" load: 557# v: 125/107/39 range: 475. $4,250; POP: 6, with 1 converted from C2-60; 1 as C2-100 Special under (2-188).
PT-15, PT-1W - 2pOB; 225hp Wright R-760; span: 33'10" length: 25'0" load: 708# v: 124/105/53 range: 355 ceiling: 14,500'. Company model designation was PT-1W.
XPT-15 1940 = POP: 1 [39-702].
PT-35 1936 = 2pOB; 225hp Wright R-760. Entered in military evaluation for a primary trainer, but was beaten out by Stearman.
YPT-15 1941 = POP: 13 [40-001/013].
St Louis PT-LM-4 10 [NX25500] (NACA/NASA)
PT-LM-4 1940 = Tandem aerobatic trainer. 2pOlwM; 180hp Ranger 6; span: 30'0" length: 24'9" load: 614# v: 137/125/55 range: 345. POP: 1 [NX25500] for military evaluation.
Louis E Salina & Earl Hoffman, Carnegie PA.
Susie Bee 1967 = 1pOB; Lycoming O-290-G; span: 15'5" length: 15'2" v: 170/145/65 range: 450; ff: 7/2/67. POP: 1, built over a period of six years for $2,000 [N1116U].
H M Salisbury, Walnut Grove CA.
1927 = 1pOB; 15hp Pope motorcycle engine; span: 20'0" length: 13'0". Home-built ultralight.
Eino Salminen, no location.
Monoplane 1918 = No data found.
1945: Skyhopper Airplanes Inc (fdrs: H E "Gene" Salvay & George A Stark), Kansas City KS; aka Aviation (aka Avia-) Boosters Inc. 1961: Salvay-Stark Aircraft, Buena Park CA.
Salvay-Stark Skyhopper 10 [N41770] (clip: EAA Experimenter)
Skyhopper 10 1946 = 1/2pO/ClwM; 50hp Continental; span: 25'0" length: 18'10" load: 315# (?>300#) v: 130/120/42 (?>120/105/48) range: 275. Prototype [N41770], designed to sell for around $1,000. Marketed plans for home-builders with 65hp Continental. Claimed inspiration for 1948 Morrisey Nifty. Design modified by Al Trefethen in 1959 as tri-gear Sport Aire II. Also seen under the company names of Avia-Boosters and Skyhopper, but still the same Salvay-Stark design.
Skyhopper 11 1959 = 2pClwM version of Skyhopper 10 with 26'4" wing and 65-85hp Continental; also 108-125hp Lycoming. [N197N, N4787T], possible others.
(Joseph R) Salzman Aircraft Services, Detroit Airport MI.
SL-1 1935 = 2pCM; 90hp Wright Gipsy. [X14525]. Reg cancelled 11/1/35. Possible connection with Breese 5?
A M Sampson (also seen as Robert Henderson & Nate Carhart), Wahpeton ND.
B Special MSL-2 1962 = 2pOB. POP: 1 [N246H] c/n MSL-2.
Model 4 19?? = No data found.
Sampson Wildcat  (EAA coll)
Wildcat 1935 = 1pOlwM; 65hp Velie M-5; span: 22'3" length: 15'1" load: 315# v: 150/130/50. Art Sampson. POP: 1 .
Sport 19?? = Hall-Scott; [119M]. No data found.
C Sanders, Oakland CA.
Curtiss Pursuit 1918 = OX-5 powered mystery ship, unrelated to Curtiss Co. Though to be a rebuild or modification from something surplus, possibly JN-4, and named for its motor. Bought by B Larsen and E E Terrell of Oakland in 1928 and registered [C471] c/n TL100sub. Reported overhauled in 1929; reg cancelled by CAA 5/7/30 for unspecified reason..
San Francisco CA.
R-1, Flier 1913 = No data except Hall-Scott "80" motor, and flown at Grand Junction CO on 9/23/13 by William Blakeley.
San Jose Flying Club Ltd, 1232 Martin Ave, San Jose CA.
E 1930 = Wrecked Travel Air 3000 with a Hisso rebuilt by Club members and reregistered [837Y] c/n 29.
1925: J O York, Glendale CA. 1928: Santa Ana Aircraft Co, Santa Ana CA. 1928: Production rights sold to Grays Harbour Airways, Aberdeen WA.
1925 = 3pOB; 90hp Curtiss OX-5. No other data than it had "flaperons," might have been a rebuild of a WW2 surplus ship.
Santa Ana VM-1 [X4564] (clip: Orange Co Airport brochure)
VM-1 1928 = 3pChwM; 80hp Anzani; span: 38'3" length: 25'0" load: 750# v: 90/x/45 range: 500. J O York. Semi-cantilever wing. Evolved into Activian. POP: 1 [X4564] c/n J-1.
Service Aviation Training & Transport Co, Wabash IN.
Commercial 1922 = 6pO/CB; 350hp Liberty; span: 43'6" length: 30'2"; load: 1960# v: 125/x/45. Omer Woodson. Pilot in an open cockpit behind the cabin. POP: 1.
Saturn Aircraft & Engineering (pres: L W Hubert, chief engr: C G Taylor), Oxnard CA.
Saturn Meteor II [N9700C] (Aero Digest)
Taylor Meteor II 1960 = Continuation of Monocoupe Meteor (I) (Florida). 5pClwM; two 180hp Lycoming; span: 36'0" length: 28'0" v: 215/199/60; ff: 9/13/60. Metal and fiberglass construction. Gross wt: 3800#. $42,000; POP: 1 [N9700C].
1929: (W Irving) Saul Aircraft Corp, Carroll IA.
Saul Triad [X808M] (Joe Juptner coll)
Triad 1000 1930 (ATC 2-229) = 5pChwM; three 65hp LeBlond 5D, later 180hp Lycoming O-360-A1A; span: 36'0" length: 28'8" load: 1650# v: x/x/68. POP: 1 [X/C808M] c/n 1001. Reportedly scrapped in 1936 after its motors were traded for a new Porterfield. Assets of the corporation were liquidated in 1939 after the death of Irving Saul in 1933, but several accounts indicate that the aircraft was still operational long after that time.
Savoia, Savoia-Marchetti, American Aero
1926: American Aeronautical Co, Port Washington NY.
Savoia S-31 (magazine clip)
S-31 1926 = 3pOBAm; 125hp Kinner R-440; span: 34'2" length: 25'0" load: 738# v: 98/80/38 range: 320.
Savoia S-55 [NC175M]
S-55 1927 (ATC 2-206, 2-277) = 17pChwMFb; two 500hp Isotta-Fraschini Asso in tandem pusher-tractor; span: 79'11" (?>78'9") length: 54'2" load: 5250# v: 128/110/68 range: 650. Twin-hull fuselages, twin-booms. Optional 500hp Wright Cyclone or Curtiss Conqueror 525hp. (2-277) for Italian 515hp Asso in 1930. $57,000; POP: 3 [NC20K, NC105H, NC175M]. Savoia planes were more often called American Marchetti to disguise their Italian origin of design although they were built in the US under license.
S-56 1929 (ATC 287, 2-95, 2-96, 2-332) = 3pOBAm; 90hp Kinner K-5; span: 34'1" length: 25'0" load: 699# v: 86/75/40 range: 290 ceiling: 7000'. $7,375 with starter and nav lights; POP: 25 [NC192/194M, NC324N/325N, NC349N, NC352N/356N, NC371N, NC378N, NC380N, NC382N/383N, NR898W, NC900V/906V, NC908V], of which 3 converted to S-56-B and 1 to S-56-C. (2-95) and (2-96) for initial production models,.
Savoia S-56-B [NC897V] (Joseph Juptner coll)
S-62 1928 (ATC 2-320) = 8pCBFb; 500hp Isotta-Fraschini Asso pusher; span: 50'10" length: 36'1" load: 2530# v: 132/118/49 range: 530. POP: 1 [?] c/n 6202. ATC issued in 1931.
S-56-B 1931 (ATC 336) = 125hp Kinner B-5; load: 738# v: 95/80/40 range: 280. $7,875; POP: 10 [NC67K, NC324N, NC351N, NC356N, NC386N, NC858W, NC898W, NC897V, NC900V, NC906V], of which 3 were converted to S-56-31. (2-332) for two 2p modifications.
Savoia S-56-31 [NC14381] (Morris A Koshchuk coll)
S-56-C aka S-56-31 1930 = 100hp Kinner. POP: 3 conversions [NC67K, NC858W, NC898W], plus the one in the photo [NC14381], which is unexplained and wore an out-of-sequence c/n 55.
Hugh S Sawyer, Milwaukee WI.
A 1935 = 1pOM; 65hp Velie M-5; no specs.  c/n 3. Crashed at Waukesha WI and reg cancelled 10/20/36.
Ralph V Sawyer, Lancaster CA.
Skyjacker II 1975 = 2pCmwM flying wing; 200hp Lycoming IO-360-A1B6D pusher; span: 18'0" length: 17'6" load: 685# v: x/x/45; ff: 7/3/75. [N7317].
SCALED SEE Rutan
Scout c.1914 = 1pOB; 50hp Gnôme rotary. Chance Vought.
Adolph R Schad, 105 Mechanic St, Cleburne TX. 1936: Keene TX.
Schad Not great pix, but all we could find (clips via J M Jarratt)
Schad Patent sheet (clip via J M Jarratt)
c.1927 = 1pOhwM; steel-tube frame covered with dural, with a war-surplus 80hp LeRhône rotary. Built by German emigrate Schad, with partners Stacy Ashcraft, J C Bradley, Oscar Ford, Joe Kavecki, and (Mrs) A T Quattlebaum, to prove his unique, patented (#1,728,806) wing design based on Schad's research, as a baker-turned-boilermaker, of tubular strengths. Construction site was Schad's back yard; date of first flight unknown, but pilot was Cal Murray. Flown successfully by Schad and others from Cleburne's Bluebonnet golf course and, later, Meacham Field, where on its second flight there the tail was broken. Unable to afford a much-needed more powerful engine, no repair was made on the plane and it was stored on a farm, finally dismantled and sold for scrap in 1941. In 1942 the US government purchased the 1929 patent for possible use in the war, but what if anything came from it is unknown, as are data and performance specs for the ship. (&151; Data research by John M Jarratt, 11/30/07)
1973: (Rodney E) Schapel Aircraft Co, Reno NV.
S-350 Mini-Swat project 1981 = 1pCmwM; 400hp Avco Lycoming IO-720-B1B. Did any of these or other Schapel projects fly?
S-525 Super Swat twin-boom project 1980 = 1pCmwM; 680hp P&W PT6A-15AG pusher.
S-882 Flying Wing project 1985 = 1pM; 180hp turbo Mazda rotary pusher; span: 34'0" load: 612# v (est): 223/192/67 range (est): 1150. POP: 1 built to full scale [N882SA]; flight unknown.
SA-981 Swat twin-boom project 1981 = 1pCmwM rg; 850hp PT6A-41 pusher.
S-1080 Thunderbolt project 1980 = 4pCmwM rg; 528hp P&W PT6A-112 pusher.
S-1275 Finesse twin-boom project 1981 = 2pCmwM; 420hp Continental Tiara pusher.
Paul Schaupp & John Doke, Inglewood CA.
1951 = 1pClwM; 85hp Continental C-85; span: 16'0" length: 14'10". Paul Schaupp. Fiberglass fuselage midget racer Mr Zip (p: Bob Pflieger) [N32C].
Al Schauss, Minneapolis MN. 1935: Schauss & (Edward C) Lampman.
1931 = 2pOhwM; 120hp Salmson 9. Al Schauss. Scratch-built with no prior knowledge or experience (even the hand-carved propeller), this was also the parasol in which Schauss learned to fly (after its test flight by flight instructor Wally Neuman). Destroyed in a hangar fire .
Schauss A  (Rhodes Arnold via Skyways)
Model A 1932 = 1pOB; 35hp 3-cyl Anzani, replaced with 45hp Szekeley SR-3. .
Schauss-Lampman Sport  (Frank Rezich coll)
-Lampman Sport 1935 = 2pCB; 85hp Ford V-8; v: 120/105/x. Ed Lampman, Al Schauss. Truss wing struts. Rebuilt 1937 as 3p with 85hp LeBlond; destroyed in a fire by vandals .
Scheusselburg's Aeroplane Corp.
c.1908 = No data.
(Webb) Scheutzow Helicopter Corp, Berea OH.
Flexhub 1963 = 2pOH; 85hp Continental C-85; rotor: 22'9" (?>23'0") length; 18'6" load: 470# v: 85/75/0 range: 170. Blades set on rubber bushings instead of conventional ball- and roller-bearings. POP: 1 as a described "test-bed" version of Model B [N564A].
Scheutzow Bee [N592A]
Model B aka Bee 1968 = 2pCH; 180hp Lycoming IVO-360-A1A derated to 165hp; rotor: 27'0" length: 24'1" load: 590# v: 93/80/0 range: 175-200 ceiling (hover): 10,800'. POP: 3 prototypes [N592A, et al].
Schiefer & Sons Aeroplane Co, San Diego CA.
RS 1917 = Pursuit trainer based somewhat on French V-strutted Nieuport design. 1pOB; US-built 100hp Gnöne 9; span: 26'6" length: 20'0"; ff: 12/9/17. N B Robbins. $11,000 (reported); POP: 1. Bought and tested by the Army, but rejected as not being as good as Orenco or Thomas-Morse. Spelling sometimes seen, erroneously, as Schaefer or Scheifer.
c.1915: Paul Schill, NYC. 1922: Vermont Air Transport Co (fdrs: Schill, Alfred Henninger, John Burns), Schill Airport, Milton VT.
c.1914 = 2pOB; span: 50'0" length: 40'0"; no other data. POP: reportedy 2 landplanes and 2 "hydroaeroplanes" used for exhibitions around Long Island NY, one with innovative aluminum body and 15° sweptback wings. Schill, a well-known auto racer at the time, first designed and built an 80hp V-8 aviation engine in 1912 for Max Ames Machine Co, Mt Vernon NY. Studied aviation in Europe for five years, moved to Milton VT c.1920.
c.1922 - Motor-glider, with no data. Was destroyed before it ever flew when its hangar collapsed in a windstorm.
B-1 1931 = 3pOB; 90hp Curtiss OX-5 [783Y] c/n 1. Likely a modified Curtiss JN-4 used for barnstorming rides locally.
Schill Gull Wing [X6929] (poor quality clip from film)
Gull Wing 1929 = 4pOlwM; Anzani; v: 80/x/30. Constructed at Harrison NJ. Two side-by-side cockpits. Wide-chord, birdlike wings permitted landings in 300-400'. POP: 1 [X6929], planned for entry in the Guggenheim competition, but was damaged beyond repair in a rough-field landing at St Albans VT.
Bruno Hermann Schmidt/U S Aerial Navigation Co, Homestead NJ.
Schmidt (Sandra Seino coll)
1911 = Old photo shows a large, rounded, startlingly modern fuselage for its day, using what appears to be almost geodesic construction, with chain-driven twin tractor propellers. Granddaughter of Schmidt by marriage, Sandra Seino adds: During 1910 and 1911 this aircraft was built in a shop adjacent to Mineola Field NJ. The design was basically sound and the plane performed well beyond expectations. In Jan 1912, US Patent #596448 was granted to the aeroplane per notification from Munn & Co, Patent Attorneys, NYC, but no other data were found.
Maximilian Schmitt Aeroplane & Motor Works, 96 Dale Ave, Paterson NJ.
Schmitt Mono and biplane (ad: 1915 Flying)
Monoplane 1914 = 1pOmwM and 1pOB; 50hp LeRhône rotary; v: 70. Etienne Dormoy, brought from France to the USA by Schmidt; his fully monocoque fuselage design was first of its kind in USA. Built for competitions, it won the $1,000 NY Times Race on 7/4/14 at Governor's Island NY (p: Harold Kantner), as well as several more subsequent races, then was converted into a biplane with a 100hp LeRhône for military trials at North Island, San Diego. However, it and three other entrants were rejected for not meeting certain requirements specified by the Army.
(Edward W & Charles T) Schmuck Bros Aircraft Co, 981 Amalia Ave/Eastside Monarch Aero Corp) Airport, Los Angeles CA. 1930: West Coast Aircraft Corp, Los Angeles.
Schmuck S-1 at Callies Flyers airport (L.A.) 1928  (B C Reed)
S-1 Commercial Sport aka Monarch 1927 = 3pOB; 90hp Curtiss OX-5; span: 32'0" length: 24'0" v: 100/x/35; ff: 9/8/27. Looked somewhat like a Travel Air with its elephant-ear ailerons. POP: 1  c/n 1. Dismantled in Feb 1930.
Schmuck S-3(?) 
S-3 Sport 1928 = 2pOhwM; 90hp Curtiss OX-5, later with 100hp Kinner.  c/n 2. The photo and its identification above was scanned from a clipping from an unknown magazine of the period, and it adds knots to the contention about the nonexistence of S-1 and that only two biplanes were built at this time. There are no visible numbers or other markings on the craft, and it might well be WCK-2. Yet the hangars in back look much like those lined up at Monarch Aero Corp field c.1928.
WCK-2 Sportster (West Coast Co) 1930 = 2pCM; 100hp Kinner K-5. Parasol wing. POP: 1 [X10526] c/n 2. According to historian John W Underwood, "It came to grief in the hands of an aspiring test pilot named Tony LeVier."
Fred P Schneider, location unknown.
c.1908-1910 = POP: 2 undescribed biplanes listed in Smithsonian records.
K O Schneider, Long Beach CA.
1928 = 2pCB; 100hp Hall-Scott. Noted in a magazine ad selling new for $450. Purchased by Garland Lincoln  c/n 1.
Schoenfeldt SEE Rider R-4
Schofield Albatross SEE Zenith Z-12
Schramm SEE RotorWay
Schreck SEE Viking V-2
Paul Schroeder, Rochester NY.
1953 = 1pOmwM; 85hp Continental C-85; span: 15'4" (?>19'4") length: 19'0" (?>17'8"). All-metal midget racer Rarebird II [N16N].
Dragontail 1950 = 1pClwM; 85hp Continental C-85 pusher; span: 20'4" length: 18'6". All-metal, Y-tailed midget racer; destroyed in testing 8/2/50 [N60298].
E A Schroeder, 1765 Dolores St, San Francisco CA.
Schroeder Cyclogyro (Peter M Bowers coll)
Cyclogyro aka S-1 1930 = 1pOhwM; Henderson engine; c/n S-1. Looked like an ordinary high-wing monoplane, except there were two large paddle-wheels in front instead of a propeller. Possibly the paddle-wheels were able to lift the nose. [X/NX606W].
Richard E Schroeder, Toledo OH.
Air Mate c.1959 = Home-built. 1pClwM; span: 24'0" v: 125. All-metal; no other data. [N5751N].
SEE ALSO Mercury (Aerial Service)
1929: Mercury Aircraft Corp (Rudolph W "Shorty" Schroeder & John R Wentworth), Hammondsport NY, on acquisition of Aerial Service Co.
1929 = 2pOhwM; 130hp Comet 7-RA; span: 57'0" length: 28'0" load: 650#. Harvey Mummert, R W Schroeder. First had a tandem landing gear with outriggers, then a tricycle gear; Schroeder-designed automatic variable-pitch prop. Constructed at the parent Mercury Corp as a variable-camber wing design for entry in the Guggenheim Safe Aircraft Competition, withdrawn after a crash during testing [X58N].
E Alvin Schubert, Galesville WI.
Der Fledermaus c.1975 = 1pOlwM; 36hp VW; span: 21'0". [N7873].
Schweizer Aircraft Corp, Elmira NY.
1-30 1958 = 1pClwM; 65hp Continental A-65; span: 40'7" length: 20'6" load: 410# v: 110/100/38. $6,000. POP: 1 [N3840A].
2-31 c.1960 = 2pClwM; span: 36'0". POP: 1 [N10360].
2-69 199? = 2pCH. No data.
Schweizer 300C [N2049D] (Schweizer)
300C 2006 = No data.
Schweizer 300CBi [N69A] (Schweizer)
Schweizer 330 [N330TH] (Schweizer)
300CBi 2006 = Lycoming HIO-360-G1A. No data.
330 19?? = 3-4pCH; Allison 250-C20W; rotor: 27'6" v: 230/213/0 range: 367 ceiling: 11,200'.
Schweizer 333 [N333UC] (Schweizer)
333 19?? = 3pCH. No data.
Schweizer RU-38A (Schweizer)
RU-38 1995 = Surveillance. 1pClwM; two 350hp Continental GIO-550 tractor-pusher; span: 64'0" load: 900# v: x/(cruise) 157 ("loiter") 104/x; ff: 4/19/95. Twin tails, twin booms; pilot in right seat and sensor systems in left seat. POP: 1 as RU-38A for USCG (2 more contracted in 1995). Projected roles in SAR, surface-mapping, drug interdiction.
Schweizer SA-2-37B [N2061L] (Schweizer)
SA-2-37B 19?? - Surveillance, counter-terrorism. 1pClwM [N2061L]. No data.
TSC-1A2 (Teal II) 197? = 2pChwMAm; 150hp Lycoming O-320A; span: 31'11" length: 23'7" load: 565# v: x/110/52 range: 470 ceiling: 12,000'. $22,475 in 1974.
X-26 c.1975 = No data found on 2-32 gliders delivered to Naval Test Pilot School, assumably (but unverified) for conversion to power with 100hp Continental as "quiet" surveillance craft, on the order as the sole Lockheed X-26B. POP: 5 for USN as X-26A [157932/157933, 158818, 159260, 161571].
Scientific Aeroplane & Airship Co, New York NY.
c.1908 = No data.
James F Scott, Chicago IL, also Lawrenceburg IN and Salt Lake City UT.
Scott creations (see sidebar)
1909 = 1pOT; 40-45hp water-cooled engine; span: 35'0". Gross wt: 900#, empty wt: 675#. That apparatus has never been fully described, but stranger yet was Scott's 1910 smaller craft, so odd that nobody has yet been able to classify itit looked like a helicopter, but wasn't. It consisted of an open structure bearing two V-frames on which 16 discs were mounted in fore and aft V-frames. The 8' diameter disks were built of radially ribbed fabric, like umbrellas. There was no driveshafting or other driving mechanisms for the disks, but a 40hp water-cooled engine drove a pusher propeller. Apparently the disks were supposed to produce some form of lift. It is not known if either contraption was ever flown. SEE The Early Bluebirds.
A Colonel J F Scott (which may match the J F Scott of Chicago and, possibly, Lawrenceburg INwhich is in effect and distance a suburb of Cincinnati) "flew" a weird contraption briefly in 1909 that was launched by towing it with a motorcycle. A Cincinnati paper on 3/31/09 reported: "The 'Purple Flier' Airship almost flew this morning when its inventor, Col J F Scott, took it out for a trial around the 500-acre field on the farm of Henry A Bobrink, but the engine failed to work properly. The machine also rose a few inches from the ground, but two of the four cylinders refused to work. Col Scott believes that with the machinery properly working the airship will fly. His machine weighs a little less than 1,000 pounds and has a 40 horsepower eight-cylinder air-cooled engine. The aeroplane is started with a motorcycle that is compelled to run at the rate of 25 miles an hour in order to raise the airship in the air." ( Mike Banks, 9/13/04)
Ronald Scott, Waukesha WI.
XS-1 Ol' Ironside 1969 = 1pChwM; 85hp Continental C-85; span: 19'9" length: 17'10" load: 405# v: x/135/x; ff: 11/22/69. [N1879].
Scout Airplane Co (Pacific Air Industries), Los Angeles CA, on acquisition of Tunison assets.
Monoplane 1929 = 2pClwM; 300hp Hisso H; span: 36'0" length: 27'0" v: 200/165/45. M C Tunison. Uncommonly sleek design for the time had a sparless wing. Plans by this investment group to revive production of Tunison Scout (qv) never got implemented in the face of the Depression, and only the Tunison original appeared at a few expositions under two registrations [X247E/X425]. It shows up in 1934 as 3p Zion Tunison Scout [X13795], with a Miller racing engine and a factory address at Elsinore CA.
John R Scoville, Rochester NY.
Stardust 1954 = 1pClwM midget racer as Stardust; span: 16'0" length: 17'6" v (racing): 158.17. [N85N], nonfatal crash during race at Niagara Falls NY on 7/4/56.
Roy B Scroggs, Eugene OR.
Scroggs Last Laughi 1/72 model (Claudio Luchina)
The Last Laugh 1930 = Similar to those dartlike paper airplanes we all used to make, this was a narrow delta-wing with about a 75-degree sweepback; 90hp Curtiss OX-5. It had elevons and twin rudders. The pilot sat in a closed cabin under the "wing" . Scroggs was a tailorand somewhat of a visionarywho prophesized that his airplane would one day revolutionize the entire air industry. The creation was test-flown successfully at an altitude of 10' (that's not a typo!), and Scroggs predicted an eventual top speed of 300mph, but he, his airplane, and the last of his laughter eventually faded away.
Seabird Aviation Inc, Columbus OH.
Le Petrel 198x = 1pOBFb. [N16017].
Marshal T Seagrave, Piedmont (Oakland), CA.
1 19?? = No data [310H].
Progressive Aerodyne Inc (fdr: Kerry Richter), Orlando FL.
Searey [N81062] (Roger Cain)
Searey [VH-CRA] (Searey Corp)
19?? - 2pChwMAm; 80hp Rotax 912 or 115hp 914 pusher; span: 30'10" length: 22'5" load: 520-550# v: (80hp) 105/85/35 (115hp) 120/100/39. Basic kit for $21,900 less engine (2000); POP: unknown.
Seattle SEE Mohlar
Seawind/SNA Inc, Kimberton PA.
1993 = Canadian home-builder design. 4pCmwMAm rg initially with tail-mounted 300hp Lycoming IO-540 (prototype with 200hp IO-360), later 400hp Allison 250-B17B turboprop; span: 35'0" length: 27'2" load: 1100# (?>700#) v: 200/191/59 range: 980 ceiling: 20,700' (specs for Lycoming); ff (300hp): 3/x/1993. Fiberglass and cellfoam construction. EAA award for craftsmanship 2000. Standard kit with molded components, less engine: $58,980; POP: unknown. Reportedly had weight and nose gear problems.
Robert M Sebring, San Fernando CA.
1948 = 1pOmwM flying wing; pusher engine; v: x/65/x. Empty wt: 150#.
Wee Wing 1949 = 1p all-plywood ultralight flying wing with wingtip tails. Airframe was reportedly built for less than $100.
1933: Security-National Aircraft Co, Downey and Van Nuys CA. 1937: Reorganized as Security Aircraft Corp, Long Beach CA. 1937: Reorganized as American Aircraft Corp, 2735 E Spring St, Long Beach. 1942: Acquired by National Airplane & Motor Co, Los Angeles.
Security-National S-1-A [NC14229] (Frank Rezich coll)
Security-National S-1-A (Gene Palmer coll)
S-1, S-1-A Airster 1933 (ATC 521, 2-451) = 2pOlwM; 100hp Kinner K-5; span: 40'0" length: 23'11" load: 555# v: 100/88/35 range: 300 ceiling: 14,000'; ff: 5/1/33 (p: Lee Brusse). Bert Kinner. Folding wing, side-by-side evolution of Kinner Sportster. $1,985; POP: 2 as S-1 [X217Y, NC13702] and 12 as S-1-A [NC13743, NC13746, NC13792/13794, NC14227/14232, NC14293]. (2-451) for gross weight change on prototype [X/NC217Y] and [NC13702]. Company was formed May 1933 by Kinner on acquiring the old Emsco plant in Downey.
Security-American S-1-B [NX28967]
S-1-B Airster 1937 (ATC 705) = 2pClwM; 125hp Security-Kinner S-125; span: 40'0" length: 23'10" load: 625# v: 90/80/38 range: 305 ceiling: 15,000'. Folding wing, side-by-side seating. Prototype [NX/NC18967] was built as a class project at the Warren School of Aviation in Los Angeles. $2,995; POP: about 5 [NC15536, NC18135, et al].
1943: (Charles W) Seibel, Kenmore NY (while working for Bell Co). 1946: Wichita KS (while working for Boeing Co on XL-15). 1948: Seibel Helicopter Co Inc, Wilson Field, Wichita; 1949: 5613 N Broadway, Wichita; 1951; 3400 N Broadway, Wichita. 1952: Acquired by Cessna Aircraft.
H-24 SEE S-4.
S-1 1943 = Twin-tilt rotor looking quite (or understandably?) like the current Bell VS-22. Preliminary first design, patented in March 1944.
S-2 1947 = 1pOH coaxial design study. No specs or data found.
Seibel S-3 [NX735B] (Eaton Chronicles)
1948 S-3 Skylark = 1pOH; 65hp Franklin; v: 90; ff (lift-off & hover): 9/4/47. POP: 1 [NX735B] c/n 1, wrought in a cellar from miscellaneous spare parts, including a truck differential and an automotive clutch. No beauty queen, it initially offered flight control by shifting the c/g instead of standard pitch mechanisms. Most design and features evolved into Cessna CH Skyhook.
Seibel's simplified control systema moveable cabin section shifting in response to "cyclic" stick inputs, thereby shifting the c/g and causing the machine to act accordinglywas soon abandoned (insufficient control and the potential for roll-over on a hard landing) and replaced by a more conventional cyclic control system for testing and promotional flying. ( Friedrich Huggler 7/1/05)
Seibel S-4A (Eaton Chronicles)
S-4 Skyhawk 1949 = 2pOH; 108hp Lycoming O-235-C1; rotor: 29"2" length: 27'10" load: 580# v: 65/58/0 range: 100 ceiling: 4300'. Conventional controls, tandem seating. POP: 1 as S-4 [N5152] c/n 1. CAA certification on 5/23/50.
S-4A 1950 = 2-3pO-CH; 125hp Lycoming O-290-B; length: 24'6". POP: 1 [N5153] c/n 2. Flight tests by CAA's Hal Hermes.
Seibel S-4B/YAH24 (Eaton Chronicles)
S-4B 1951 = YH-24 [51-5113] with 165hp Franklin 6A4-165-B3, modified as a side-by-side trainer for Army testing at Fort Sill OK.
YH-24 (Ceswsna) 1951 = To Army for evaluation. POP: 2 [51-5112] c/n 3 to Fort Bragg NC and returned to Cessna in 1952, and [N5153=51-5113] c/n 4 to Wright Field OH, modified to S-4B. Both ships were eventually scrapped by Cessna.
John Selcher, unknown location (maybe not USA?).
JS-1 1978 = 2pOB; 108hp Lycoming O-235; span: 26'0" length: 17'0" load: 573#.
Self Aircraft Corp, 225 W Lewis, Wichita KS.
Dr J Sellars, White Plains NY.
Quadroplane 1927 = 1p quadruplane with a two-cylinder motor had a total surface of 100sqft. Reported to have burned while being started for its trial flight. There might be a filial connection between this and the following entry, but no explanation exists about the spelling differences in their or their planes' names.
1892: Matthew B Sellers Jr, Olive Hill KY, Norwood OH, and Baltimore MD.
Quadruplane (Number 6) 1908 = 1p quadruplane; 8hp French-made Dutheil-Chalmers; span: 18'0" length: 12'0" load: 140# v: c.20; ff: 12/28/08. Gross wt: 250#*. Matthew Sellers, based on his previous multi-wing glider experiments. Originally was a glider with spring-actuated, variable-incidence wings. Flying successfully as late as 1927 with an economy of power, the largest motor being a 10hp two-cylinder Bates, the four positive-staggered wings of 36" chord provided more than 200sqft of wing area. POP: 1, the most prominent of Sellers' 52 different designs in 22 years to 1914. Of note is a claimed feature invented and used by Sellers as early as June 1908, a four-wheel gear that rose automatically when the plane left the ground, with landings then made on skidsthe first retractable gear? Possibly, but there is no documentation on its success. * Aircraft empty weight shown in US Patent Office Gazette 7/11/11 was 110# (and there was no mention of a retracting gear).
William Sellick, Cicero IL.
1913 = 1pOmwM; Elbridge 4. A Blériot redesign, it flew successfully, but his follow-on creation, based on a French Nieuport Centre-Wing with an Anzani motor, didn't fare as well. Pathè movie newsreel cameraman Curtis Pritchard convinced him he should be its test pilot, despite never having flown before. Sellick relented and, after some verbal flight instruction, watched Pritchard take-off too soon and too abruptly, with the inevitable splintering crash. Pritchard suffered a broken leg, but the plane was a total loss.
Jacob P Sellmer, San Rafael CA.
Sellers working on Quadruplane (clip: 1923 magazine)
1932 = According to the photo and its press release, this was to be some form of an autogyro with a "large clutch-operated disc" (the spiral "lift") arrangemen. The caption explains: "Runways and landing fields will not be necessary if this creation of J P Sellmer works out. When the motor is started, the lift is started whirling to raise the ship straight up. When the right elevation is reached, the spiral folds up and the engine drives the plane as does any other. In large ships, two spirals are to be provided to eliminate torque, and in small ones, a propeller at the back of the plane will prevent spinning." How far this grand idea progressed is unknown.
Incubator 1929 = 1pOhwM; 28hp Lawrance. Home-built based on Pietenpol, with a pivoting wing for minimum storage requirement. Created for use by Sellmer's son in his duties as a Fish & Game Dept warden. POP: 1 [512K].
Blaine Selvage, Humboldt City CA.
1909 = 1pOmwM; 40hp Selvage. Hardly more than an open framework with a wire-braced wing attached, reportedly built by a local mechanic, Alfred Peterson, but a 11/19/09 newspaper photo shows it in flight.
Sequoia Aircraft Co, Richmond VA.
300 19?? = 2-4pClwM rg; 235-300hp various; span: 30'0" length: 25'0" load: 1000# v: x/260/69. David B Thurston. Composite and steel-tube fuselage, all metal wings and tail. Aerobatic capability. POP: ??. Kits and plans available for home-builders, as well as the finished airplane.
302 Kodiak 19?? = 4pClwM rg; 235-300hp various turbocharged; span: 30'0" length: 25'0" load: 1350# v: x/255/72.
Falco F.8L c.1980 - Kits and supplies for Italian 2pClwM home-builder sport plane.
Seraph SEE Bennett
Claude Sessions, Waynesville IN and Owensburg KY.
1922 = 1pOB; Indian V-2. Bicycle wheels, wing-warping controls. POP: 1, plus another modified version built in 1925 at Forsyth IL.
1925 (Owensburg) = 2pOB; 80hp Anzani.
Servicair Co, Glendale CA.
Loadmaster c.1960 = 4pChwM; 450hp P&W R-985; span: 40'6" length: 31'7" load: 2160# v: x/115/50; conversion of Convair L-13. POP: 1 known [N2544B], maybe others.
(Alexander de Seversky, New York NY.
1926 = Curtiss JN-4D modified with a combination roller-and-ski landing gear. POP: 1, damaged in landing tests 2/10/27 and scrapped. Spelling of de Seversky's name was deliberate to play up the ski angle.
Monoplane 1911 = 1pOhwM. Cantilever wing with underslung ailerons; open-frame fuselage.
Shaffer SEE California Aero
Irish Aircraft Co, Sandusky OH.
3-B 1929 = 4pChwM; 110hp Warner Scarab; span: 36'6" length: 25'10" load: 900# v: 115/85/45 range: 380. $6,500. This might well be the IAC Special repowered.
IAC Special 1928 = 1p unknown type; 90hp Curtiss OX-5 [X4966] c/n 100.
James Shannon & Ben E Buente, Evansville IN.
Special 1948 = 1pCmwM; 85hp Continental C-85; span: 19'4" length: 16'7". Midget racer [N5489N], reportedly never raced.
George E and Loran Sharp, Newhall CA.
Meteora c.1968 = 2pCH; 75hp Continental C-75; rotor: 23'0" length: 19'0".
Shaw Comet (Drina Welch Abel coll)
Shaw Flying Boat (Drina Welch Abel coll)
1915 = Photos of a flying boat and a pusher identified only as Comet.
A sportplane, the Shaw flying boat was rather different from other American flying boats in design, as well as construction. Typical was the very short fuselage of the hull, formed as a gliding airfoil, but in its bow was a three-cylinder, two-stroke, water-cooled, 90hp Johnson covered with an aluminium top. Just behind the motor was the radiator, and behind that two tandem cockpits with dual-controls, then the pusher prop operated by a long shaft and chain.
Wings were linen-covered wooden frames with two spars, the front one of which as a layer of ash between two layers of spruce. Leading edges were made of five layers, four spruce and one ash, all secured by steel wire. Wood struts had a streamlined cross-section and were made from three layers of ash and two of spruce. Only the upper wing had ailerons. Tail section was rather compact and set at an angle to avoid trailing in the water. The lifting tailplane had an elevator in two parts, a stabilizer in three parts, and a balanced rudder. All were covered with linen. Both the lower wings and the tail section were attached to the fuselage with steel pipes, and on both sides of the fuselage a section of the lower wing was uncovered to provide a handy downward view.
Fuselage was an ash and spruce frame covered with mahogany three-ply having a center layer of linen, and the deck's bow was covered with linen. Fuselage length was about 6 meters and had a hollow V-bottom with one step. Behind that step the bottom was flat. (-- Willem Beerling 3/1/01)
W J Sheehan, S Walpole MA.
1933 = Home-built. 1pOlwM; Heath-Henderson, later replaced by Anzani. V-strut-braced wing. POP: 1 [911V] c/n 4. Reg cancelled in 1935.
(Kenneth) Sheffield Aircraft Ltd, Littleton CO.
Skeeter X-1 1970 = 1pOhwM; 72hp VW; span: 22'0" length: 13'6" load: 280# v: 85/75/42 range: 160; ff: 4/x/70 [N117].
Sheldon Special SEE Johnson Special
Shelton SEE American Gyro
F R Shepard, Riverbank CA.
c.1928 = Unknown type; 40hp Lawrance. .
Fred J Shepard & Thomas C Krum, Beaverton OR.
SC-1 Sportcraft 1938 = 2pOlwM; 65hp Velie M-5. .
Sherpa Aircraft Co Inc, Aloha OR. Sherpa Worldwide Inc & Sherpa International Inc.
Sherpa 8 Room for 8 (Sherpa)
8 19?? = STOL. 8pChwM; 450hp Lycoming TIO-720 twin-turbo; span: 44'10" load: 2504# v: 166/42 ceiling: 12,000'. Tires up to 42"; convertable for freight or passengers, also as two-litter medivac ambulance.
Sherpa [N711SA] (Roger D Cain)
Sherpa 200 [N1415B] and designer Root (Sherpa)
200 c.1995 = STOL bush plane. 5-6pChwM; 400hp Lycoming IO-720; span: 42'7" load: 1600# v: x/139/38. Byron Root. Last place in a beauty contest with its huge "tundra tires," but it got the blue ribbon for "off-road" operations. POP: unknown; prototype [N1415B], et al. Also available in kit packages and amphibious twin-pontoon option.
300 2001 = STOL. 6pChwM in development at the time as a marketed kit.
1959: (Clifford) Shinn Engr Co, Santa Ana CA. 1967: Sold to Varga Aircraft Co, Chandler AZ.
2150A 1960 = 2pClwM; 150hp Lycoming O-320. Data similar to Morrissey 2150. Became Varga 2150A. POP: 37.
Roy L Shirlen, Winston-Salem NC.
Big Cootie 196? = 1pOB; 65hp Lycoming, later 80hp Continental A-80; v: 120/90/63 (65hp). [N84Z].
Fred P Shneider, 1020 E 178 St, New York NY.
I, II 1909 = 2p OB; 30hp 3-cyl Eldbridge with two chain-driven pusher propellers. Direct copies of Wright A for exhibition work, it was destroyed in a crash on 7/12/09. Following the subsequent crash of Model II, Shneider concentrated on building Curtiss pushers.
William C Shober, Brookeville MD. c.1973: Shober Aircraft Enterprises, Gaithersburg MD.
Willie II 1971 = 2pOB; 180hp Lycoming O-360-A3A; span: 20'0" length: 19'0" load: 494# v: x/150/60 range: 375.[N7919].
c.1913 = 3pOBFb; pusher motor.
Boyd J Shores, Pasadena CA.
S-1 1929 = Monoplane with 80hp LeRhône rotary; span: 32'0" length: 25'0"; ff (assumed): 5/30/29. [717K] c/n 5, reg cancelled 7/14/30.
Shreck SEE Viking
Tod Shriver & (?) Dietz, Mineola NY.
Shriver (Renèe Gregory Batson coll)
c.1910 = 1pOB with no data. Possible, but unresolved, connection with Dietz Paraplane in design or construction.
Sidewinder SEE Smyth
Rudolf Siegrist, Parma OH.
RS1 Ilse 1971 = 4pChwM; 180hp Lycoming O-360; span: 28'0" length: 21'6" load: 907# v: 170/150/73; ff: 6/x/71 [N3087].
1919: Sierra Aircraft Co (pres: Leon T Eliel), Sierra Airdrome, Foothill Blvd, Sierra Madre CA.
Standard 1919 = Likely a surplus Standard J-1 modified to accommodate the company's business of aerial surveys. Eliel later went on to become president of Fairchild Aerial Surverys, according to John M Jarratt's findings.
1928: Aircraft Industries Ltd (fdrs: John L Berney, J F Long, Art Wild), 931 E 14 St, San Leandro CA; 1929: Modesto CA. 1929: Ended operations. 1930: Assets sold to Hawke Dusters, Modesto.
Sierra San Franciscan [R7713]
BLW-1, -2 1929 (ATC 2-151) = 3pChwM; 130hp Comet; span: 36'0" length: 25'8" load: 909# v: 125/100/47 range: 400. H Sherman Tharpe. $8,000; POP: 2 [X215H, X/R7713], the latter as San Franciscan in unsuccessful endurance record attempts June-Aug 1929 at Mills Field, San Francisco (p: Jim Warner). Said to have been sold after WW2 to someone in South America. Design reappears in Hawke Duster. The company also rebuilt the Breese Pabco Flyer after its accident at the start of the Dole Race.
Sierra S-1 SEE Acme
Herman Siersma, Detroit MI.
SRC-1 1962 = 1pCmwM; 85hp Continental C-85-12J; span: 17'0" length: 20'0" load: 330# v: 200/170/85 range: 500; ff: 11/2/62. Earl Chelsea, Gerard Rogers, Herman Siersma. Eleven years in construction! POP: 1 midget racer [N4190C].
(?) Sievers and Phillip Miller, Valley City NC.
Special c.1970 = 1pOB. [N1175].
Task Research Inc, Santa Paula CA.
1984 = Kit-built. 1pClwM; 44hp Rotax 447; span: 31'20" length: 19'4" v: x/120/52 ceiling: 14,000'. Composite construction. POP: ??, prototype [N84TR].
Silverston (Drina Welch Abel coll)
Milwaukee #2 c.1910 = No data other than photo caption: "Pendulum system 120hp engine."
1928: Silver Wing Aircraft Co (fdrs: Edward Euler, A H Hogue), 28th & Spruce Sts, Boulder CO. 1929: Ended operations.
1928 = 2pOhwM; 90hp Curtiss OX-5; span: 41'3" length: 26'9" load: 682# v: 110/90/32; ff: 4/15/28 (p: Edward Euler). H C King. Later with 150hp Wright-Hisso (load: 968#). Utilized a Curtiss JN-4 fuselage and gear. Spin-proof, the company claimed, with a heavy, laminated spar that would withstand dives up to 175mph. POP: 1  c/n SWM-100. Press releases told of two cabin versions under construction, but were apparently unfinished.
William Simmermon, Williamstown NJ.
FS Special 1930 = No data; LeRhône. [774W] c/n S-2.
Herbert H Simmons, 2111 Franklin St, San Diego CA.
SP-1 Sport Monoplane 1928 = 2pOM; Super LeRhône static; span: 36'6" length: 21'9".  c/n 61, reg cancelled 7/22/30.
1928: Simplex Aircraft Co (fdrs: E J & F W Allen), Defiance OH. 1929: Acquired by Aero Corp of America. 1932: Filed bankruptcy.
Simplex K-2-C (Joe Juptner coll)
K-2-C Red Arrow 1928 (ATC 44) = 2pCmwM; 90hp Kinner K-5; span: 34'4" length: 22'3" load: 570# v: 120/108/37 range: 550. Omer Woodson; origin in Woodson M-6. Side-by-side canopied cockpit; semi-cantilever wing. First few were powered by 75hp Kinner. $4,495. POP: see next.
Simplex K-2-S (Joe Juptner coll)
K-2-S Red Arrow 1928 (ATC 43) = Same as K-2-C, with side-by-side open cockpit. $4,115; POP total K-2s: about 10. Won 1928 California Class-A Race (Los Angeles-San Francisco) in a field of 16 aircraft [NC6504] (p: Dick Myhres, 3h:10m, avg: 126mph).
R-2-D Red Arrow Dual Plane aka Simplex Racer 1929 = 1pOB/hwM; 165hp Wright J-6; (as monoplane) span: 32'9" length: 21'0" load: 700# v: 140/125/50 range: 600; (as biplane) load: 1250# v: 125/110/45 range: 700, or 225hp Wright J-6; (as monoplane) v: 165/150/50 range: 550; (as biplane) v: 150/135/45 range: 650. Interesting concept of a convertible monoplane/biplanetop shoulder wing was permanent, 24'0" lower wings could be easily added for increased lift and load-carrying. POP: 1, flown as monoplane racer with 225hp Wright in the 1929 Nationals events with clocked pylon speeds of more than 220mph [NR43M] (p: Dick Myhres).
S-2 Kite 1929 = 1pOlwM; 40hp 3-cylinder Szekely SR-3. Omer Woodson. A probe into the inexpensive, ultralight aircraft market. Uncovered, girder-like fuselage; thick, cantilever wing. POP: 1 [X489M] c/n 1002. Simplex failed to get anywhere with the project, but the idea went with Woodson and company test pilot Myhres when they left in 1930 to form Cycloplane Co (qv).
Special 1928 = 3p unknown type; Dayton Bear. [X7860] c/n 22.
Simplex W-2-S [NC371V] (Frank Rezich coll)
W-2-S Red Arrow 1929 (ATC 238) = 2pCmwM; 110hp Warner Scarab; span: 34'4" length: 22'2" load: 627# v: 125/107/45 range: 650. $4,495; POP: about 10, of which one [X9412] was modified from K-2-S.
W-5-C 1929 = 5p unknown type with 225hp Wright J-5B, possibly a competition version of W-2-S. POP: 1 [X547E] c/n 32-C.
F Simpson, Wheeling WV.
Maverick 195? = 2pChwM. No data. [N2924V].
Special 195? = 1pOlwM; 85hp Continental C-85. [N12V].
Fred G Sindlinger, Puyallup WA.
Sindlinger HH-1 Hurricane (Tom Jensen coll)
HH-1 1972 = 1pClwM; 150hp Lycoming O-320; span: 25'0" length: 19'8" load: 370# v: 200/165/x range: 625. 5/8-scale version of WW2 Hawker Hurricane fighter. Plans and components sold to amateurs. POP: 12 under construction by 1976.
Special #1 1959 = 1pClwM; 65hp Continental, later 75hp A-75; span: 20'4" length: 16'5" load: 336# v: 145/120/63; range: 524; ff: 4/10/59 [N6448C].
Everett Sink, Zanesville OH.
S-1 1931 = 1pOM; 36hp Chevrolet.  c/n 1-T.
Sino Swearingen SEE Swearingen
1931: Sioux Aircraft Co, Sioux City IA, on acquisition of Driggs Aircraft Co. 1933: Ended operations.
Coupe 60 1930 (ATC 2-81) = 1pChwM; 65hp Velie M-5. POP: 1 carried over from Kari-Keen inventory.
Coupe 90, 90-A 1931 = 2pChwM; 90hp Brownback Tiger; span: 30'0" length: 23'0" load: 533# v: 115/100/45 range: 400. Reorganization of Kari-Keen Aircraft Co, this was a slight variation of the Kari-Keen 90. Swen Swanson, redesign by Gazley & LaSha. $3,355; POP: 1 [NC10544]. Repowered with 110hp Warner Scarab.
Coupe 90-B Junior 1931 (ATC 414) = 2pChwM; 90hp Warner; span: 30'0" length: 23'0" load: 530# v: 115/98/45 range: 400. $3,500; POP: 1 [NC10721]. There are reports that a 90hp Lambert was also installed at one time, perhaps by some owner at a later date.
Coupe 90-C Senior 1931 (ATC 2-356) = 2pChwM; 110hp Warner Scarab; span: 30'0" length: 23'3". POP: 1 [NC10735].
(A M Bert) Sisler Aircraft Co, Bloomington MN.
SF-1 Pipit 197? = 2p?. No data.
SF-2 Whistler 1973 = 2pChwM; 62hp VW 1834cc; span: 30'0" load: 500# v: 95/86/43; [N5549].
SF-2A Cygnet c.1977 = Improved version of SF-2. 2pChwM; 62hp Barker-VW 1834cc; span: 30'0" length: 19'0" load: 515# v: 108/100/48. [N191S].
"Possibly everyone will travel by air in another 50 years. I'm not sure I like the idea of millions of planes flying around overhead. I love the sky's unbroken solitude. I don't like to think of it cluttered up by aircraft, as roads are cluttered up by cars. I feel like the western pioneer when he saw barbed-wire fence lines encroaching on his open plains. The success of his venture brought the end of the life he loved." Charles Lindbergh, The Spirit of St Louis, 1953