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World War Two Product Documents
Machined Parts for Aircraft Engines

This page added 5-18-2020. 

This page-and a-half document encompasses a period of late 1940 to July 1943, machining parts for the Allison V-1710 aircraft engine.  In the fall of 1941, the machining operation moved into Plant 10, but the document does not indicate where the machining took place before that.  By July 1942 Plant 10 was machining 2,000 sets of 100 different parts each month.  Some of these parts were castings being made in Plant 7.

This document is courtesy of the Madison County Historical Society in Anderson, IN.

This Allison V-1710 is on display at the Indiana War Memorial in downtown Indianapolis.  The two nose house castings and the intake manifolds on top of the engine were produced in DR Plant 7.  The same can be said for the heads that are painted black and the gray engine block below it.  The valve cover that has been removed but is just visible on opposite side was also a Delco-Remy casting.  Many of the internal castings not in view were also produced in Plant 7 and then machined in Plant 10.  Author's photo.

From "Our War Job."

This is most likely a photo taken in Plant 7 where the Allison V-1710 cylinder heads are being de-burred.  In order for these heads to be properly machined, they would need to be set up on machine tools in Plant 10 to obtain the required tolerances.  Note the nose housings on the conveyor behind the middle operator.  Photo courtesy of the Madison County Historical Society.