S.E.L.A. 1911 monoplane

In 1909 the pilot Gaudard founded the Société d’Étude pour la Locomotion Aérienne (SELA) in France. G Badini, their designer, built two similar aircraft powered by 55 hp Aviatik engines, one appeared in 1910 at St Cyr, the other, a variant, in 1911. This machine was sponsored by “La Dentelle au Foyer”, a lace-workers’ magazine which later bought a Farman for the Army, christened “La Dentelle de Puy”; the city of Puy was famous for its lace industry.

Seguin Siren Wasabi

Looking to move into the gold, Elliot Seguin’s Siren Wasabi reflects the move toward high-aspect-ratio elliptical wings for more speed.

The Wasabi Special is a single place, low-wing, conventional landing gear-equipped racing aircraft.

Formula 1 Cassutt custom wing

The airplane was designed and built at the Mojave Air and Spaceport by Elliot Seguin for racing and record setting.

At the Reno Air Races in 2013 the Wasabi Special achieved 229 mph.

At EAA Airventure Set C1, set a record for MHV to OSH flying non-stop with 5 other experimental aircraft from Mojave.

At Reno Air Races 2014 achieved 235 mph.

Powerplant: 1 × Continental O-200
Propeller: 2-bladed
Crew: 1

Seedwings Sunseed

The 1975 Sunseed is a double surface, diffuser tip flying wing. It has outboard control surfaces. Canted tip wings provide self righting characteristic. It has a fibreglass leading edge with an aluminium trailing edge wedge. Draggons on the wing tips can be operated as glide path control devices to reduce glide angle from 12-1 to 5-1. The wing tip design provides induced drag and tip vortex reduction. The lower wing surface is ribless.

Seedwings Sunseed Article

The airframe is made from 2024-T3 anodised aluminium. Rigging cable is 3/32in 7 x 7 stainless steel aircraft qualiy, vinyl coated. Hardware is all aircraft quality parts. The sail is 1.8oz stabilised dacron and is fitted with zippers and Velcro tapes. There was the option of seated or prone harnesses.

The Sunseed dissembles to a bundle 10 ft long and 1 ft in diameter.

The Sunseed has a stable stance even in steep turns with no tendency to dive or stall.

The run out distance before touchdown is about four times that of a Rogallo. It has a 13.7% airfoil and a load factor of 6G.

Wing span: 32.8 ft
Wing area: 128.5 sq,ft
Aspect ratio: 8.36
Wing sweep: 15˚
Weight: 50 lb
Pilot weight: 125-180 lb
Takeoff speed: 15 mph
Stall speed: 16 mph
Max speed: 40 mph
Best glide ratio (L/D): 12-1
Best L/D speed: 25 mph
Min sink: 275 fpm

Security S-1 Airster / Security-National S-1 Airster / Security-American S-1 Airster

Security-National S-1-A

The S-1 Airster designed by Bert Kinner was a folding wing, side-by-side evolution of the Kinner Sportster. First flying on 1 May 1933 (piloted by Lee Brusse) they received ATC 521 and were priced at $1,985.

Two were built as S-1, NX217Y and NC13702, and 12 as S-1-A, NC13743, NC13746, NC13792 to 13794, NC14227 to 14232, and NC14293.

Security-National S-1-A NC14229

ATC 2-451 was received for gross weight change on prototype NX/NC217Y and NC13702.

About five 1937 S-1-B Airster were built with ATC 705, including NC15536 and NC18135, priced at $2,995. The prototype, NX/NC18967, was built as a class project at the Warren School of Aviation in Los Angeles

Security-American S-1-B NX28967

S-1 / S-1-A Airster
Engine: 100hp Kinner K-5
Wingspan: 40’0″
Length: 23’11”
Useful load: 555 lb
Max speed: 100 mph
Cruise: 88 mph
Stall: 35 mph
Range: 300 mi
Ceiling: 14,000′
Seats: 2

S-1-B Airster
Engine: 125hp Security-Kinner S-125
Wingspan: 40’0″
Length: 23’10”
Useful load: 625 lb
Max speed: 90 m[h
Cruise: 80 mph
Stall: 38 mph
Range: 305 mi
Ceiling: 15,000′
Seats: 2

SECAT S.4 Mouette / SECAT S.5

SECAT S.5 F-PIIC Toussous

Société d’Etudes et de Construction d’Avions de Tourisme (SECAT) had been established in the late 1930s, and in 1938 had built the two-seat, high-wing S-4 Mouette, designed by Rémy Goucher, the development of which was interrupted by the hostilities of the Second World War.

Design work on light aircraft was resumed by SECAT in 1946, resulting in the SECAT S-5, the prototype of which was first flown in that year.

The S-5 was based on the design of the S-4, and was of all-wooden construction and had side-by-side seating for two persons. The cantilever, elliptical high-set wing comprised a wooden box-spar, chordwise ribs and a stressed plywood skin. The trailing edge carried ailerons and flaps. The fuselage was a wooden semi-monocoque and dual controls were fitted. The windscreen was split. A large access door was provided on each side of the fuselage, and all fuel was carried in a 250 l (55 imp gal; 66 US gal) tank installed in the wing.

The SECAT S-5 was a light, high-wing, two-seat touring monoplane aircraft, and only one example of the type was ever built, and it flew for a variety of private owners for several decades.

SECAT S-5 F-PIIC Toussus

After the prototype, no further examples of the type were completed. The sole example of the SECAT S-5, registered F-PIIC, was initially operated from Toussus-le-Noble Airport, near Paris. By 1964, it was owned by M. Rene Dupuis, and it was hangared at Arras Roclincourt Airport. The aircraft was still extant in 1967; however, it was struck off the French civil aircraft register during the 1970s.

Engine: 1 × Regnier 4D.2, 56 kW (75 hp)
Wingspan: 8.99 m (29 ft 6 in)
Length: 6.15 m (20 ft 2 in)
Height: 2.11 m (6 ft 11 in)
Empty weight: 350 kg (772 lb)
Gross weight: 570 kg (1,257 lb)
Fuel capacity: 250 l (55 imp gal; 66 US gal)
Maximum speed: 196 km/h (122 mph, 106 kn)
Cruise speed: 150 km/h (93 mph, 81 kn)
Range: 800 km (497 mi, 432 nmi)
Service ceiling: 3,600 m (11,810 ft)
Rate of climb: 3.0 m/s (590 ft/min)
Crew: 1
Capacity: 1 passenger or student pilot

Sebring Wee Wing

Designed and built by Robert M Sebring over a three-year period, the 1949 Wee Wing was a single-place pusher, the airframe was reportedly built for less than $100. The wing was of bonded plastic plywood. The wood construction aircraft was completed in 1949 and in its structure several composite material parts and components were used. The aircraft had so called wingtip tails and was fitted with one 12hp Richter two-stroke (drone) engine, the Richter company later being acquired by the Nelson Engine company.

Only limited testing of the aircraft took place and further development was soon halted.

Only a single example of the flying wing was built.

Engine: one 12hp Richter (Nelson) two-stroke
Wingspan: 22 ft
Height: 2.5 ft
Empty weight: 150 lb
Cruise: 65 mph
Seats: 1