The Deleray Aircraft Works D-5 Sport Plane of 1920 was a single-seat open cockpit biplane powered with a 15hp motorcycle engine. The lower wing slightly shorter. It could be practically any motorcycle motor of 12 hp or more. The slab-sided early ultralight was advertised as “complete set of 18 large plans” for $6.00.
Wingspan: 17 ft
Max speed: 65 mph
Stall: 35 mph
Seats: 1
Freeport NY.
USA
Built aircraft circa 1920.
At Cye. The de la Vaux monoplane was designed and built by de la Vaux in France circa 1910.
The delta wing of the Delta Dart II uses composite construction.
Delta Dart II
Empty weight: 245 kg
Wing span: 6.24 m
Wing area: 14.4 sq.m
Fuel capacity: 70 lt
Certification: Vz
Engine: BMW 90, 90 hp
MAUW: 450 kg
Seats: 2
Max speed: 250 kph
Cruise speed: 205 kph
Minimum speed: 55 kph
Climb rate: 4.5 m/s
Fuel consumption: 7.5 lt/hr
Price (1998): 85,000 DM
1998:
Anderslebener Straβe 107-109
D-39387 Oschersleben
Germany
LSA builder as Delta Dart Flugzeugbau
On the 7th January 1910, the first airplane constructed and designed in Brazil took off for its maiden flight in Osasco, São Paulo. The aircraft was conceived by the Frenchman Demetre Sensaud de Lavaud and was very similar to the Bleriot designs. The first flight was only 6-sec long. Afterwards, several other flights followed and the airplane, known as São Paulo, attracted huge crowds during its flights exhibitions. The aircraft was 100% Brazilian-made (even the propellers and the engine were manufactured by Mr. Lavaud). It was the first of several other designs developed in Brazil and the event took place long before the country could see aircraft serial manufacturing.
Research aircraft was built on this principle by the Societe Anonyme Frangaise de Recherches Aeronautiques in 1938.
Maurice Delanne produced his first design, a light aircraft, the D.ll L’bis Bleu, at Chateauroux in 1929.
France
Maurice Delanne produced his first design, a light aircraft, the D.ll L’bis Bleu, at Chateauroux in 1929. Proposed a tandem wing arrangement (the “Nevadovich biplane”) in 1936. Virtues claimed for this arrangement included an exceptional e.g. travel and very low stalling speed. The Delanne 20 research aircraft was built on this principle by the Societe Anonyme Frangaise de Recherches Aeronautiques in 1938. A full-scale fighter design, the Arsenal- Delanne A-D 10, was built by Arsenal de I’Aeronautique at Villacoublay in 1939. Completed during the German occupation, it was taken to Germany for further testing.
The 1910 de Lailhacar monoplane was designed by Jacques De Lailhacar (Spaniard), and built by Berthaud in France.
Span: 32’10”
Length: 36’1″
Weight: 660 lb
