The 1911 Stewart Aerial Vehicle Co 1911 Biplane was a single place Boxkite type with multi-paneled wings. The motor drove twin pusher props. Apparently. several variations were made. US Patent #984,311 was granted.
In 1938 Charles L Stewart of Tulsa OK., USA, built the Model B. A single-place, open cockpit monoplane powered by a 36hp Aeronca engine and registered N17622.
C M Stewart built the Model 1 two-place, open cockpit biplane N13979 in 1935. It was powered by a 90hp Wright-Gypsy and also shows having a 60hp Ford.
First flown in March 1994. Designed by Jim D. Stewart, the Stewart S-51D is an all aluminum 2-place scale reproduction of the North American P-51D Mustang. The kit is prefabricated and held together with pop rivets for shipping. Flush aircraft rivets are installed by the builder. A fast build kit was available for US$89,000, ans the basic kit for US$64,000. The kit is included on the FAA 51 % rule list.
The aircraft features dual controls and is fully aerobatic. The S-51D utilizes liquid cooled engines ranging from 300 to 700 hp. The 91” diameter, constant speed four-blade Hartzell propeller is driven through spur gear reduction with a 0.469 (2.13:1) ratio. Using a 400 hp engine, the S-51D duplicates P- 51 performance, except for top speed.
By 1998, 72 kits had been sold in the previous three years, with two finished.
Engine: V8, 400 hp
HP range: 300-600
Height: 9 ft
Length: 22.25 ft
Wing span: 26 ft
Wing area: 123 sq.ft
Fuel cap: 70 USG
Weight empty: 2200 lb
Gross: 3000 lb
Vne: 273 mph
Speed max: 265 mph
Cruise: 240 mph
Range: 700 sm
Stall: 70 mph
ROC: 2700 fpm
Take-off dist: 900 ft
Landing dist: 1300 ft
Service ceiling: 24,000 ft
Seats: 2
Landing gear: retractable tail wheel
Engine: V8
Wing span: 7.92 m
Wing area: 11.32 sq.m
MAUW: 1360 kg
Empty weight: 998 kg
Fuel capacity: 265 lt
Max speed: 426 kph
Cruise speed: 386 kph
Minimum speed: 113 kph
Climb rate: 13 m/s
Seats: 2
Kit price (1998): $64,000
Designed by John Hunt and Lionel Kitchen, the 1931 W F Stewart Co M-2 (ATC 2-349) shoulder wing monoplane was also powered for a short time by a Packard DR-980 Diesel. The one built (X/NR493M) was eventually sold to Abrams Aircraft for photo-survey work and scrapped in 1940.
Engines: two 300hp Wright J-6
Wingspan: 52’10”
Length: 37’0″
Useful load: 1536 lb
Max speed: 155 mph
Cruise: 130 mph
Stall: 60 mph
Range: 350 mi
Seats: 5
Designed by John Hunt, the 1928 W F Stewart Co M-1, or X-1, NX1754 featured a full-cantilever wing; two side-by-side cockpits with dual controls.
M-1 (X-1)
Engine: 90hp Curtiss OX-5
Wingspan: 38’6″
Length: 26’0″
Useful load: 953 lb
Max speed: 105 mph
Cruise: 85 mph
Stall: 43 mph
Seats: 4
The 265 design was based on the Ryan ST and Don Stewart wanted the airplane to be in his favourite category, which included the Champ, Chief, Cub and all the rest of the 65-85 HP clan. The problem was that there was no engine available that fit the concept at the time.
A publicity release in 1993 for the Mikron III answered my need for the engine and he got down to work and finished the design work on what’s become the 265. Two people, sixty five horse power.
By December 2007, the airplane has over one hundred hours of good service with no problems other than making some new fiberglass parts to remove weight. The airplane cruises at about 90 MPH, stalls about 40 and handles very nicely. The engine burns 3.7 USgph.
Drawings were not for sale.
The prototype Headwind N8667E was built over a period of 5 months and was first flown on March 28, 1962.
The Headwind is described as an extremely simple airplane of steel tubing construction for the fuselage and tail. The wings are two wood spars with either sawed plywood or formed aluminum ribs. All the fittings are flat, and only two of them require any preassembly. The engine bolts directly to the front of the fuselage, saving a separate engine mount. A 36- to 65-hp VW engine is used. The Headwind was the first design to use the Volkswagen engine in the United States and much development work was required to get the engine to it’s full potential as an aircraft engine. The most important development in the engine work was the design and patenting of a propeller speed reducing unit (PSRU) to allow the engine to develop it’s full horsepower. Many structural (to simplify and make it easier to build) and aerodynamic improvements have been made to the design so that now the only part of the original design still used is the engine mount and the portion of the fuselage between the cockpit and the stabilizer. Everything else is new.
In the forty some years that the Headwind has been in existence, many examples have been built all over the world. Well over one hundred airplanes are now in service powered by a variety of engines, however, only the Volkwagen engine is shown on the plans. No other engine data is published.
Approved Maneuvers:
Steep turns ( 60 degree bank ) Entry – Cruise
Lazy Eight ” – 85 mph
Chandelle ” – 85 mph
Spin ( one turn ) ” – Stall
Maximum aft limit for spins 14.8″
Wing Span 28′ 3″
Length 17′ 0″
Height ( tail down ) 5′ 9″
Gross Wt. 760 lb
Empty Wt. 450 lb
Fuel capaci¬ty: 6 USG
Vno 80 – 85 mph
Vne 110 mph
Vso 38-42 mph
R of C 650 fpm 1st minute
T.O. distance ( 0 wind ) 300′
Landing run ( 0 wind no brakes ) 400′
Endurance 2 hours
Range 195sm
Stabilizer Span 7′ 7″
Wheel Track 5′ 2 1/2″
Wheel Base 13′ 6″
Wing Area 110.95 sq.ft
Ailerons ( eff. area ) 14.83 sq.ft
Fin 2.17 sq.ft
Rudder 4.17 sq.ft
Stabilizer 7.00 sq.ft
Elevator 9.54 sq.ft
Headwind B
Cruise: 85 mph
Stall: 40 mph
Range: 200 sm
Rate of climb: 650 fpm
Takeoff dist: 300 ft
Landing dist: 400 ft
Engine: VW, 53 hp
Fuel capacity: 7 USG
Empty weight: 435 lb
Gross weight: 750 lb
Length: 17 ft
Wing span: 28-3 ft
Wing area: 110 sq.ft
Seats: 1
Cockpit width: 23-25 in
Landing gear: tailwheel
LSA: yes
The Foo Fighter was designed and built in 1967 by Don Stewart and Tom Raybourn, Mohawk Airline pilots, and inspired by the Alcock A-1, a World War I war bird that resembles the Sopwith Pup. One distinguishing feature of the Foo Fighter is its lower wing that crosses below the fuselage, aft of the gear, and attaches on the centerline. The airframe is built from steel tubing and covered with fabric. Originally, a Falcon 200 six cylinder CID auto engine was installed, but a 130-hp Franklin Sport Four can also be used. It was first flown in 1970 with a PSRU but the engine proved to be too heavy for the power provided and the airplane was modified to use a Franklin “Sport Four” of 130 HP.
This engine went out of production and so the airplane was once again redesigned to accept any of the four cylinder Lycoming engines from the O235 up to the O320 series. It is a very docile sport airplane that offers limited aerobatic capabilities.
The prototype was registered N2123.
Engine: Franklin Sport 4, 130 hp
Gross Wt. 1100 lb
Empty Wt. 720 lb
Fuel capacity 19 USG
Wingspan 20’8”
Length 18’9”
Top speed 145 mph
Cruise 115 mph
Stall 45 mph
Climb rate 1200 fpm
Takeoff run 450 ft
Landing roll 550 ft
Range 345 sm
Circa 1967, Gary L Stevenson of Spenard AK., USA, built an all-metal design based on the Wittman Tailwind. Registered N173G, it was a two-place cabin. High-wing monoplane.
Engine: 115hp Lycoming O-235-C1
Max speed: 180 mph
Cruise: 160 mph
Stall: 55 mph
Seats: 2
All Aero 