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The Helmy Aerogypt was a British four-seat cabin monoplane designed and built by Egyptian Saleh Helmy at Heston Aerodrome in 1938. The Aerogypt I was a low-wing cantilever monoplane initially powered by three 22 hp (16 kW) Douglas Sprite engines. The aircraft had an upward hinged roof that acted as a landing flap. Registered G-AFFG, it first flew in 1939. It later had the hinged roof removed, and was re-designated the Aerogypt II. Another modification added end plates to the horizontal tail surfaces, and was re-designated the Aerogypt III, and last flown in that configuration in September 1940.[1]

Aerogypt
Helmy Aerogypt, Heston 1939
Role Four-seat cabin monoplane
National origin United Kingdom
Manufacturer Helmy
Designer S Helmy
First flight 1939
Retired 1946
Produced 1938
Number built 1

In 1943, the aircraft was modified as the Aerogypt IV with a tricycle landing gear and two 65 hp (48 kW) Continental A65 engines. It was flown from White Waltham Airfield, but in November 1946 it was damaged beyond repair when it was dropped by the recovery crane following a landing accident at RAF Northolt.[2]


Variants


Aerogypt I
Initial designation, a three-engine monoplane with tail wheel landing gear.
Aerogypt II
Modified with hinged roof removed.
Aerogypt III
Modified with end plates on horizontal tail surfaces.
Aerogypt IV
Rebuilt as a two-engine monoplane with tricycle landing gear.

Specifications (Aerogypt IV)


Data from Jackson (1974), p 250

General characteristics

Performance


Notes


  1. Jackson (1974)
  2. Smith (2002)

References



На других языках


[de] Helmy Aerogypt

Die Helmy Aerogypt (für Aeroplane of Egypt, deutsch etwa Ägyptens Flugzeug) war ein dreimotoriges Versuchsflugzeug, das von dem ägyptischen Medizinstudenten Saleh Helmy entworfen und gebaut wurde. Die Aerogypt war wahrscheinlich das kleinste dreimotorige Flugzeug, das jemals geflogen ist. Helmy erarbeitete, ähnlich wie der amerikanische Konstrukteur Vincent Burnelli ein Konzept zur Vergrößerung des Auftriebsanteils des Rumpfs am Gesamtauftrieb eines Flugzeugs, wobei vor allem eine erhöhte Sicherheit bei den generell kritischen Start- und Landevorgängen im Mittelpunkt standen.
- [en] Helmy Aerogypt



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