Propeller Identification

• Saturday at 4:31 PM

• #1

T

traderjohnj

Recruit

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May 24, 2024

Any idea what this was used on and year?

 

Last edited by a moderator: Saturday at 5:29 PM

• Saturday at 4:33 PM

• Thread starter
• #2

T

traderjohnj

Recruit

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5

May 24, 2024

Hub diameter is 9". Length overall is 93 1/2"

 

• Saturday at 5:05 PM

• #3

E

Engineman

Staff Sergeant

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887

Dec 26, 2021

It says, Dia 93", Pitch 76", for a Jacobs L4 (R-775), made 1943.
Quite a few light aircraft that used the engine, the aircraft manuals would specify which props could be used, and therefore which aircraft this could be from.

Eng

 

• Saturday at 8:54 PM

• Thread starter
• #4

T

traderjohnj

Recruit

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May 24, 2024

Engineman said:

It says, Dia 93", Pitch 76", for a Jacobs L4 (R-775), made 1943.
Quite a few light aircraft that used the engine, the aircraft manuals would specify which props could be used, and therefore which aircraft this could be from.

Eng

Click to expand...

Thank you!

 

• Sunday at 4:58 AM

• #5

E

Engineman

Staff Sergeant

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887

Dec 26, 2021

traderjohnj said:

Thank you!

Click to expand...

No problem!
Possibly, someone on here can define accurately which aircraft with the R-775 had that prop. There are quite a few types. This is obviously a fixed pitch wood prop but the precise type this would be fitted to is very detailed info.

Eng

 

• Sunday at 5:56 AM

• #6

Wurger

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Jun 19, 2005

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The S&S Aircraft Limited Winnipeg was the Canadian manufacturer of the wooden propellers widely used for many WW2 training aircraft.

More than ten years ago a couple of guys asked about the same propeller type at Need Info on S&S Propeller - Wooden Propeller Forum
Even the Serial Number is very close one.

S&S Aircraft Limited Winnipeg
SER.S.2381
SS-SS.210.E
D 93"
P 76"
JACOBS L4
NOV 1943

Also an another one ... S&S Aircraft Ltd. - Winnipeg - Wooden Propeller Forum

S&S AIRCRAFT LIMITED - WINNIPEG
SER.S.1404
DRG.210.E.
DIA - 93
PIT - 76
JACOBS - L4
OCT - 1942

Unfortunately both didn't get any info.

 

• Sunday at 3:15 PM

• #7

E

Engineman

Staff Sergeant

983

887

Dec 26, 2021

I have tried to look at the likely application of this propeller, based upon the date of manufacture and the Jacobs L4 (R-755) engine with this fixed wooden prop.
My data is based on internet.
So, it looks likely that this prop might have been produced for the WW2 trainer aircraft and the two likely types I find are, the Boeing-Stearman PT 18 Kaydet and the Cessna AT 17 Bobcat light twin. Both these types had versions with the L4 fitted with fixed pitch wooden props. Obviously, very important training aircraft in the War.
Best I can do.

Eng