O200A Cruise RPM?

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8452
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Location: NE Texas
Name: Larry B
Aircraft Type: 1948 Cessna 140
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Re: O200A Cruise RPM?

Post by 8452 » Sat Jul 13, 2019 12:29 pm

I understand what you’re saying Victor. My previous O200 had a sweet spot at about 2450 and did well at that engine speed. The new engine seems happy at whatever engine speed I ask of it. Maybe that’s why I asked the question.

My Mooney really likes about 2500 at any MP you want to give it, but doesn’t feel happy at a lower or higher RPM.
Larry Bible

Returned to the club after three years away due to life’s changes
1948 Cessna 140, O200A, Ragwing, Custom IFR Panel
1966 Mooney M20F/J

529
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Name: Victor G
Aircraft Type: C-120
Occupation: Work on airplanes till the cows come home..........they're still out.
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Re: O200A Cruise RPM?

Post by 529 » Mon Jul 15, 2019 10:28 am

8452 wrote:
Sat Jul 13, 2019 12:29 pm
I understand what you’re saying Victor. My previous O200 had a sweet spot at about 2450 and did well at that engine speed. The new engine seems happy at whatever engine speed I ask of it. Maybe that’s why I asked the question.

My Mooney really likes about 2500 at any MP you want to give it, but doesn’t feel happy at a lower or higher RPM.
Your Mooney and My Mooney were related. 2500 RPM was the smooth setting, anything lower was noticeably rougher.........higher was ok...........but why?

7392
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Re: O200A Cruise RPM?

Post by 7392 » Wed Jul 17, 2019 8:26 am

Thanks for the comments. My 85, also seems to have a sweet spot. I've felt the
same about 'a smooth running engine is a happy engine'.

Larry Surratt
'46 C-140
#89011
Serial #8015
26R/JACKSON COUNTY TEXAS

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