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POTEZ 438

 


Technical Specifications
Type
Three-seater in wood for training with high wing and fixed landing gear
Date first flight
May 1934
Wingspan
11,30 m 
Lenght
7,65 m 
Height
2,36 m 
Wing Area
18 m2 
Empty Weight
560 Kg 
Max. Takeoff Weight
840 Kg 
Cruising Speed
138 km/h. 
Maximum Speed
170 km/h
Climbing Speed
Service ceilling
5000 m 
Range
700 Kms
Crew
3 Men
Motorization
1 Engine Renault 4Pdi of 120 Hp
Armament
No armament

 


Production

40 Potez 438 were built since the date by the first flight, in May 1937

To date, of the 40 aircrafts manufactured, 15 are listed in the list below :


Historical

In 1931, the Potez Company met a popular success with its Potez 36. It extrapolates a version with improved aerodynamics: the Potez 43.

The aircraft is very similar to its predecessor, the Potez 36. It retains the monoplane formula with high wing and fixed landing gear, but the cabin can now accommodate three people. The empennage is redrawn, and the wheels can receive a fairing. The wings are equipped with leading edges to delay stall, and to fly slowly. The aircraft, powered by a Radial engine Potez 6Ac 105ch, made its first flight in June 1932. The prototype will be followed only a few weeks later, by a first series of 25 Potez 430.

For the promotion of the aircraft, two copies, F-AMBM and F-AMBN, will be lined up on August 12, 1932, at the start of the international aviation tourism competition organized by Germany. On August 28th, only 24 of the 43 participants will join the finish in Berlin, including Pierre Duroyon, one of the two pilots from Potez, who ranks at the 22nd place. The second pilot, Georges Detre, will be disqualified due to a cruising speed that is too low.

Other versions were turned down from this Potez 430, including the adoption of Renault inline engines (Potez 432, 435, 437 and 438) or De-Havilland Gipsy Staff (Potez 434). The silhouette of the aircraft is in this case, deeply modified with a long and thin hood much more aesthetic.

The Potez 438 will be made for the military as a training and liaison aircraft. It is equipped with radio equipment and a tail wheel. 40 copies will be produced and put into service in the school or in the units of the first lines as liaison plane.

At the declaration of War, in September 1939, many Potez 43 will be requisitioned and paid in school or unit. Of the 157 machines manufactured, few aircrafts will survive the events, but some restored models, still fly nowadays for the pleasure of enthusiasts.


Versions

Versions
Qty
Descriptive
Potez 430
25
First version motorized by a Radial-engine Potez 6Ac of 105Hp. He made his first flight in June 1932.
Potez 431
60
Motorized version by a Radial-engine Potez 6Ac of 105Hp. He made his first flight in 1933
Potez 432
3
Version powered by a Renault online 4Pei 100Hp. He made his first flight on April 21, 1933.
Potez 434
9
Motorized version by De Havilland Gipsy Major 1 from 120Hp to 4 cyl. inline inverted air cooled. He made his first flight on November 2, 1933.
Potez 435
11
Version powered by a Renault 4Pdi 120hp to 4 Cyl. inverted online. He made his first flight on June 23, 1933.
Potez 437
9
Version powered by a Renault 4Pdi 120Hp to 4 Cyl. inverted online. He made his first flight on July 17, 1934.
Potez 438
40
Version for training, powered by a Renault 4Pdi 120Hp 4 Cyl. inverted online. He receives radio equipment and the tail stand is replaced by a wheel. He made his first flight in May 1934.

 


Bibliography

Editions LELA PRESSE ; Collection "Histoire de l'Aviation"
- No30 : Les avions POTEZ par jean-Louis Coroller et Michel Ledet

 


Photos Album


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