L Larry Active Member Jun 24, 2006 #1 For My RV-9A what attitude should I put it at for the fuel flow test and how many gal per hour can I expect? Larry N72NJ
For My RV-9A what attitude should I put it at for the fuel flow test and how many gal per hour can I expect? Larry N72NJ
vlittle Well Known Member Jun 24, 2006 #2 Level the airplane, disconnect the fuel fitting from the carburetor, raise it up 16". This represents a deck angle of 22.5 degrees (12.5 best angle of climb + 10 degrees AoA). Confirmed with Van's My results: Results: L tank 1.05L in 39 sec. = 25.6 USG/hr. Unusable fuel 50 mL. R tank 1.00L in 38 sec. = 25.1 USG/hr. Unusable fuel 25 mL. Required flow: 13.6 x 1.25 = 17 USG/hr (from Lycoming engine manual). Vern Little
Level the airplane, disconnect the fuel fitting from the carburetor, raise it up 16". This represents a deck angle of 22.5 degrees (12.5 best angle of climb + 10 degrees AoA). Confirmed with Van's My results: Results: L tank 1.05L in 39 sec. = 25.6 USG/hr. Unusable fuel 50 mL. R tank 1.00L in 38 sec. = 25.1 USG/hr. Unusable fuel 25 mL. Required flow: 13.6 x 1.25 = 17 USG/hr (from Lycoming engine manual). Vern Little
L Larry Active Member Jun 24, 2006 #3 Thanks Vern Boy I really appriciate this forum. It saves a lot ot time. Larry N72NJ
