• Hi Guest! Forum rules have been updated. All users please read here.

Huff-Daland HD.31 ?

hesham

CLEARANCE: Above Top Secret
Joined
May 26, 2006
Messages
24,251
Reaction score
1,053
From L'Air Revue 1926,

here is a strange designation to Huff-Daland,it's HD.31,and I don't know if they meant Petrel 31 or not ?.

 

Attachments

Maveric

Fight for yor Right!
Joined
Jan 14, 2007
Messages
1,781
Reaction score
51
Seems like that, the engine and the wingspan are the same. Also the year could be correct, the HD.22 comes from 1923, the HD.31 from 1925.
 

Aubi

CLEARANCE: Confidential
Joined
Aug 31, 2009
Messages
84
Reaction score
78
Website
www.valka.cz
According to aerofiles, the last picture is HD.49, not 31. The difference in engine is obvious (Liberty vs Wright Whirlwind). This source https://www.deltamuseum.org/exhibits/delta-history/aircraft-by-type/crop-duster/Huff-Daland-Duster mentions that Huff-Daland tested various configurations and engines and ended with "large" Puffer (presumably Liberty-engined HD.31) and "small" Puffer (presumably Whirlwind engined HD.49) and that only the small airplane was succesfull. But they also claim that "Liberty engined Petrel 31" was the smaller machine.
To me it seemes that Delta confused both types, as the table from the L'Air Revue mentions our mysterious HD.31 as having 15.24 m/50 ft span and Liberty engine, and also mentions smaller "Petrel V" with 10,06 m/33 ft span and Wright engine. So:
HD.31 = Petrel 31 = 50 ft w/Liberty
HD.49 = Petrel V = 33 ft w/Wright
 
Last edited:

hesham

CLEARANCE: Above Top Secret
Joined
May 26, 2006
Messages
24,251
Reaction score
1,053
Thank you my dear Aubi,

but the HD.48 is new for me.
 

Maveric

Fight for yor Right!
Joined
Jan 14, 2007
Messages
1,781
Reaction score
51
Great info Aubi, thx. Do you have a picture of the Petrel V?
 

Aubi

CLEARANCE: Confidential
Joined
Aug 31, 2009
Messages
84
Reaction score
78
Website
www.valka.cz
Shit, sorry, I meant HD.49, not 48.
If I'm correct, HD.49 should be the designation of machine in the picture you posted, Maveric, and usually known simply as Duster.
 
Last edited:
Top