Adolphe Lachassagne Aircraft

[hesham]

Hi,

Mr. Adolphe Lachassagne began in 1912/13 to built a tandem
wing airplane,called AL-1,and described as "automatically
stable",followed by a AL-2 in same concept,the AL-3,AL-5 & AL-6
were a single seat low-wing ultra-light monoplanes,but
with different engine,AL-7 was a tandem wing in new shape.

A little known about AL-4,it was probably based on AL-3,but
powered by one 25 hp Anzani W engine,and got an accident,
the AL-8 was developed from AL-7,with a tandem two-seat in
enclosed large cabin,remained a Project only.

https://www.hippocketaeronautics.com/downloads/HC&M3.pdf

TU 217

 

[Retrofit]

Lachassagne AL-5 & AL-7
(source: "L'aviation légère en France 1920-1942" by Roger Gaborieau, Bleu Cliel Diffusion 2014.

 

[burunduk]

Doesn't anyone know the year of AL-7's first flight?
Thank you in advance.

BTW, in 1946 this aircraft was mentioned as "new":

Sympathique Lachassagne // Les Ailes. 1946. № 1079. P. 13.

 

[riggerrob]

Noting the proximity of wing tips on the AL-7 and AL-8 ... was he hoping to cancel out wing tip vortices?
... like the latest tordoidal propellers recently introduced for motor-boats?

 

[hesham]

.Doesn't anyone know the year of AL-7's first flight?
Thank you in advance.

BTW, in 1946 this aircraft was mentioned as "new":

Sympathique Lachassagne // Les Ailes. 1946. № 1079. P. 13.

My dear Burunduk,

it's 10 September 1945.

 

[Retrofit]

Please note that the Lachassagne AL-7 n°1 (F-WBBN) is now preseved by the Musée Régional de l'Air at Angers, France.
Photo: Pierre Caillaud, published in the "Magazine Espace Air Passion-GPPA" n°157 Spring 2024

 

[avion ancien]

I assume, Retrofit, that is an 'as was' rather than an 'as is', photograph. When last I heard, the AL-7 was dismantled in the storage hangar at Angers-Marcé. Does the magazine give a date and/or location for the photograph?

 

[Retrofit]

Indeed Avion ancien, the photo was taken at Brienne le Chateau in august 1980.
Aircraft was taken in charge by GPPA in june 2002