I am just putting the finishing touches on a 62" CAP 21 that I have been working on for a year and I noticed that the engine MAY be mounted ABOVE the thrust line. (5-10 mm?) I am checking what little documentation I have for the plane, but I was wondering what this might do for my flight performance? I am thinking about a maiden voyage for tomorrow, but will hold off if this will cause a severe deviance from the way it should fly. Thanks for any help you may be able to offer!!

Regards,

Jeff

Jeff,

The engine being a small amount above design thrust line will not significantly hinder flight performance. Probably won't notice it.

Go flying!

BP

I wouldn't worry about a 5 - 10 mm difference. Go fly!