Help Identifying a wooden Sensenich prop

• Jan 22, 2025

• #1

P

planeguy

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Jan 22, 2025

Is there any way to identify how old this propeller is or what plane it would have been used on.
I really don't know the
first thing about some of this stuff. It is 8'4" long. The hole in the
center is about 3 1/8 inches ID and it looks like it would receive a
shaft the length of 5 3/8 ". It was a little hard to read the SER number
on the the thing, but I think it is as follows: 57316

 

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• Jan 22, 2025

• Thread starter
• #2

P

planeguy

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Jan 22, 2025

Here is another photo of the whole prop

 

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• Jan 23, 2025

• #3

SaparotRob

Unter Gemeine Geschwader Murmeltier XIII

16,250

17,423

Mar 12, 2020

Long Island, NY

Howdy planeguy. I have no idea but welcome.
There are a few guys here that might have a good idea about the prop.

 

• Jan 23, 2025

• #4

M

mjfur

Staff Sergeant

782

986

Sep 23, 2006

The 225HP rating (Continental R-670, Lycoming R-680, Jacobs R-755) is typical for the PT-13 Stearman, Cessna T-50, UC-78 and a variety of Waco's. There are probably others as well.

 

Last edited: Jan 23, 2025

• Jan 23, 2025

• #5

Michael Hope

Airman 1st Class

247

168

Jun 28, 2016

The Sensenich website has a list of wooden propeller serial numbers and a date range for when the blank was glued together.

https://www.sensenich.com/wp-content/uploads/2023/04/SerialNumber_Wood_2023-04-05.pdf

If the serial number is correct with no letter in front of the serial number then blank glued prior to 1944

 

• Jan 23, 2025

• #6

cammerjeff

Staff Sergeant

1,188

2,790

Dec 26, 2006

Belleville MI

according to this link all the 100 series propellers seem to be Waco applications, but it does not list a 100A model. So I would suspect a Waco powered by a Continental R-670 radial engine. Of around 170 hp

Sensenich Wooden Propellers

 

• Jan 24, 2025

• #7

B

BobB

Airman 1st Class

198

372

Nov 18, 2015

Georgia

100A is superseded by 100CC & 100CD. Those letters indicate minor changes but FAA says approval of 100A expired and no prop manufactured after February 15, 1945 is eligible for use on certificated aircraft. Since this prop wasn't used on military trainers, I suspect that production stopped well before 1945. The "100" is the diameter in inches. If the pitch isn't marked on it, you'd have to get that measured to determine what engine it would match. "Lasher's Approved Propeller Installation Reference Book" shows it as only being used on Wacos.

 

• Jan 27, 2025

• Thread starter
• #8

P

planeguy

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Jan 22, 2025

Hey thanks a lot for your help! I think that answers my questions.