Static RPM data
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5806
- Posts: 51
- Joined: Tue May 01, 2018 7:00 am
- Name: John von Linsowe
- Location: Michigan
- Aircraft Type: 48 C-140
- Occupation-Interests: CFI
- Contact:
Static RPM data
I am looking for 'real' data that anyone has showing what their static RPM is with a C-90 and a 1B90/CM7151 prop. I will be checking with a digital tach soon and would like comparison data.
John
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6298
- Posts: 246
- Joined: Tue May 01, 2018 7:00 am
- Name: Randy Thompson
- Location: California
- Aircraft Type: Cessna 140
- Occupation-Interests: Work on airplanes and engines
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Re: Static RPM data
The Type Certificate data sheet for the C-90 with a 1B90 CM states not over 2350, not under 2000 for landplane.
Randy Thompson A&P IA Pilot
Hold STC SA547EA for installation of O-200 engine in Cessna 120/140 and 140A"s
Overhaul small Continentals
Hold STC SA547EA for installation of O-200 engine in Cessna 120/140 and 140A"s
Overhaul small Continentals
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6643
- Posts: 2464
- Joined: Tue May 01, 2018 7:00 am
- Name: John C
- Location: KLCI, NH
- Aircraft Type: 1946 C140/C90
- Occupation-Interests: A&P, semi-retired
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Re: Static RPM data
Sort apples to oranges, but I get 2050 - 2100 RPM with a 7152 which is really a 7052.
John Cooper
www.skyportservices.net
www.skyportservices.net
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8252
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- Name: Brett M
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Re: Static RPM data
i currently have 2200 with the old round tipped 50", 2050 with modern square tipped pitched to 54"
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8279
- Posts: 18
- Joined: Mon Jul 23, 2018 10:41 pm
- Name: Boyd G
- Location: Prescott Arizona
- Aircraft Type: C140A
- Occupation-Interests: Semi Retired
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Re: Static RPM data
I have a 140A C90-14F and a McCauley 1B90CM 7151 and I’m getting 2160 static RPM...