Hamilton Standard Prop ID

[Drphloxx]

Blades are 84" long
Here are the numbers that repeat the most on the base of the blades:
DWG 6491A-6S
2 B5 -37297
MFG 280026 CONT. AC28744

 

[stona]

All I can say is that the blade (to that drawing number) was used with the R-3350 series engines. On what aircraft I don't know.
Cheers
Steve

 

[Michael Hope]

They could possibly be used on a Curtis Commando, C-46. You could try Buffalo Airways from Ice Pilots fame and see if they might be able to use them.

 

[MiTasol]

Blades are 84" long
Here are the numbers that repeat the most on the base of the blades:
DWG 6491A-6S
2 B5 -37297
MFG 280026 CONT. AC28744

According to TO 00-25-29 and TO 00-45-1 Blade 6491A-0 was used on the 23E50-473 props on the C-46A-CU (but not on the C-46A-HI) in 1943 but I do not have a reference to later dash numbers of this blade. Certainly later C-46s may well use it. The earlier blades were 6477-12.

There may have been a Navy use also but the above TO's only cover USAAF aircraft

Interestingly the two C-46-HI aircraft were built by Higgins - a boat builder - and the prop type is not identified