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Possible PT Boat or Torpedo Propeller?


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36thIDAlex

Hello, so a local estate auction appeared on my radar recently but doesn't happen for another week or so. It seems the man was a PT Vet from WWII as his uniform and a few other pieces of militaria are included in the auction. The auction has a lot of other non-military sea-related paraphernalia including two of these brass propellers. The ad says each is made of brass and around 18" in diameter. I don't really know anything in regards to PT or Torpedo specifications, but in the wild possibility that he brought these back from the service somehow, I would want to make sure I pick them up. If anyone can identify or point me in the right direction I would greatly appreciate it.

 

post-167017-0-28711500-1526833833.jpg

GEN. David R. Atchinson- MO State Guard              ACW

PVT. John H. Drury- Co. A, 27th Ky IR                      ACW               Died of Typhoid

PVT. Henry E. Thomas- Co. I, 17th Ky IR                  ACW

PVT. Joseph E. Drury- Co. E, 356th IR, 89th ID       WWI                WIA

SGT. Edward P. Drury- 51st QM Training Co.           WWII

PFC. Delmer C. Koonter- Co. I, 142nd IR, 36th ID    WWII              WIA

SC3c Michael C. Drury- LCS (L) (3) 70                     WWII

SGT. Steven D. Koonter- 5th Cav, 1st Cav Div         Vietnam

SGT. John M. Drury- 227th AVN Bn. 1st Cav Div     Vietnam

 

Contact me with items from the 36th Infantry Division or any IDd uniforms of European Theater Infantry Divisions

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This is what I found regarding the propeller.

 

The propeller was 28" diameter and 28" pitch and turned clockwise when looking from aft, it had a tapered fit and a keyway onto a 2" diameter propshaft.

 

SPECIFICATIONS

 

Dia: 28", Pitch: 28", Developed area: 420.6 square inches, MWR (Mean Width Ratio): 0.42, BTF (Blade Thickness Fraction): Variable (.061), Pitch Ratio: 1.0, Weight of Prop and Hub: 61 LBS, WR² (inertia in air) LB. IN²: 2754.76

Specific areas of collecting and buying interest:
 

WWI/WWII 40th (Sunshine) Division, Camp Kearny, Camp Harry Jones, WWI/WWII 158th Infantry, USS Oklahoma, Pearl Harbor Survivors Association, Mexican Border (1916),

Norman Air Technical Training Center (NATTC) Norman, OK, Tinker Field or AFB, Submariner Items, Knives, Bayonets, Sweetheart Jewelry, other unique

or odd items with interesting stories.

 

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Salvage Sailor

That looks like a small boat propeller, torpedoes have a much larger shaft. Most US PT boats I'm familiar with had three bladed props, not four. If you knew what PT boat he was on you could nail down the type of boat (Elco, Higgins, etc)

 

Photo, Higgins 78' propellers

78' Higgins PT Boat.jpg

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