RE: Datum/Referance Line
Hello NGH:
To Flyboy I repectfully disagree. I am now building a GP 40 size cub kit. The plans call for +2.5 degree on the stab and wing with the engine at 0 degrees. What I would and am going to do is use my Robart incidence meter. I will put the fuse in a stand and check the stab incidence. I will juggle the fuse untill the meter reads 0 with the wing installed but the hold down bolts undrilled. I will check carefully the centering and incidence. If the wing and stab are 0 then I will drill the holes and I'm done.
I will agree that checking the motor is a PIA. I will not check it. Here Flyboy is right, I won't mess with it unless flying it shows signs of balloning or diving under power. This is just my preference, Flyboy is right that if you build'em straight there is no need to check.
I'm just a persnickety perfectionist that has to check and double check and check the darn thing again. This from a guy who checks the drain plug on cars he changes oil on at least 3 times before returning it to the customer! Good luck on your Cub.
Mark Shuman