At the local army/navy surplus store and found this in a "junk" box. Got it for $1. Would live to know what airframe this came off of. Im new to this so compressor blade? Compressor turbine?

Markings: Written in sharpie 8740

Engraved 8740 (Hand engraved on bottom)

Stamped 6205DJ92


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  • $\begingroup$ Unlikely 8740 steel low alloy. That could only be used in the temperatures on the first few stages of the compressor inlet. $\endgroup$ Oct 23 '21 at 0:48
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    $\begingroup$ Maybe not an aircraft engine at all. Gas turbines are used in many places other than aircraft. The Abrams M1 tank used a gas turbine. Many military ships use them for extra power. The plant that generates electricity for your home uses steam turbines. $\endgroup$ Oct 23 '21 at 23:53
  • $\begingroup$ Good call on the abrams. Was also thinking perhaps due to the overall LACK of markings, inspections stamps etc that perhaps this is an APU. Ill expand my search. Thanks! $\endgroup$
    – Josh
    Oct 24 '21 at 2:28

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