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Static RPM data

Posted: Wed Jun 20, 2018 11:18 am
by 5806
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.

Re: Static RPM data

Posted: Wed Jun 20, 2018 2:24 pm
by 6298
The Type Certificate data sheet for the C-90 with a 1B90 CM states not over 2350, not under 2000 for landplane.

Re: Static RPM data

Posted: Thu Jun 21, 2018 2:19 pm
by 6643
Sort apples to oranges, but I get 2050 - 2100 RPM with a 7152 which is really a 7052.

Re: Static RPM data

Posted: Tue Sep 18, 2018 2:59 pm
by 8252
i currently have 2200 with the old round tipped 50", 2050 with modern square tipped pitched to 54"

Re: Static RPM data

Posted: Tue Oct 02, 2018 4:54 am
by 8279
I have a 140A C90-14F and a McCauley 1B90CM 7151 and I’m getting 2160 static RPM...