Don. The static rpm is defines in the TDC. For your reference found here http://www.ercoupe.info/?n=Main.TdCList A McCauley should turn 2025 at the minimum. Max. is 2225. A 71/51 McCauley would make around 2050 static at the minimum in my experience. >From the TCD:
Fixed pitch metal, McCauley 1A90CF or 1B90CM +12 lbs. (-32) Eligible on Models M10, A2, A2-A, 415-D (per note 4(b)), E, G, F-1 and F-1A. Static r.p.m. at maximum permissible throttle settings: For Models 415-D, E, or G: not over 2225, not under 2025. For Models M10, A-2, A2-A, F-1, F-1A: not over 2375, not under 2250. No additional tolerance permitted. Diameter: not over 71 inches, not under 69.5 inches. And for a 415 c or CD: Propeller - fixed pitch metal, McCauley 1A90-CF or 1B90CM 26 lb. (-32) (with engine item 110 only). Static r.p.m. at maximum permissible throttle setting: not over 2225, not under 2025. Diameter not over 71 in., not under 69.5 in. No additional tolerance permitted. Hartmut To: [email protected] From: [email protected] Date: Sat, 9 Jan 2010 19:49:47 +0000 Subject: [ercoupe-tech] Static RPM I inherited a stack of literature over 6 inches thick with my coupe, but have not yet found what I am looking for. What should I see for static RPM with the 85hp engine swinging a McCauley 71 51 prop? _________________________________________________________________ Windows Live: Friends get your Flickr, Yelp, and Digg updates when they e-mail you. http://www.microsoft.com/middleeast/windows/windowslive/see-it-in-action/social-network-basics.aspx?ocid=PID23461::T:WLMTAGL:ON:WL:en-xm:SI_SB_3:092010
