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Old 07-06-2017, 12:51 PM   #1
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Join Date: Nov 2016
Posts: 10
Default 4 Bladed Test Prop ? DRG WF 490

Can anyone identify the maker and purpose of this prop. It's about 60" from tip to tip. I presume it's for testing engines but can't find anything on the drawing number in order to date it etc.

The only stamped details are DIA 91411 DRG WF 490
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