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Ercoupe O-200 STC Prop question

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22 Sep 2025 11:19 #13 by Larry Snyder
Replied by Larry Snyder on topic Ercoupe O-200 STC Prop question
I’d call Alpha Aviation and ask. I know that many complaints I’ve heard in the past about the O-200 STC was the limited choice of propeller that does not let you take full advantage of the engine.

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22 Sep 2025 11:07 #14 by Randall Hirsch
Ercoupe O-200 STC Prop question was created by Randall Hirsch
Using a new IA this year for the annual inspections on my Ercoupe and my friends 415-D with an O-200 STC.  This IA noticed that the STC (STC SA2628WE) specifies only one prop a McCulley 1A101/DCM 6948.  This 415-D has a 1A100/DCM 6950 - which is fine for the O-200 and is listed on the TC for the engine, just not in the STC for the O-200.

Has anyone else run into this issue before? Is everyone out there with an 0-200 running a 1A101/DCM 6948?

Thanks,

Randy Hirsch

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