I am getting close to getting my final inspection .... I hope.  One of the tests I need to perform is the fuel flow test.

One is supposed to tilt the plane at the maximum angle of climb plus 5 degrees and determine two things:

that your flow is at least .5 lbs x hp/hr and what your useable fuel is at this angle.

What angle have folks used?  I did a rough trig calc based on 80 knots and 2500 ft/min and got around  20 degrees plus the 5 degrees.  Is this reasonable?

2nd question.  I've getting conflicting opinions as to where I need to disconnect the fuel line to do the test.  Some say to disconnect just before the Fuel Server (IO 360) and some say it should be just before the spider distribution valve at the top.   I'm getting over 45 gallons per hour before the servo but only 5 gals per hour before the spider with full throttle and the mixture full forward.

 

Thanks

Doug