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Search: Posts Made By: Mel
Forum: Traditional Aircraft Engines 11-05-2008, 02:35 PM
Replies: 45
Views: 110,247
Posted By Mel
I started out with 7:1 in my O-320-E3D (2515hr...

I started out with 7:1 in my O-320-E3D (2515hr TT). I went to 9.5:1 at overhaul. BIG difference. Prop went from Sensenich 68X69 (W) to Sensenich 70X80 (W) then to Catto 3-blade 66X74.
Forum: Traditional Aircraft Engines 11-04-2008, 06:14 PM
Replies: 45
Views: 110,247
Posted By Mel
No free lunch.

Sorry but if you lower compression from 9:1 to 8.5:1, you will not maintain the same hp.
The H2AD is a totally different engine.
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