Thank you George,

Yes, I agree using the stock impeller is not a good idea if it's going to be flown. This one will be built only as a static display model that I am trying to make "period correct" in all aspects - motor, control unit, fuel tank, ect...it will not be flown, so a control handle isn't all that necessary...just trying to complete what goes inside the plane.

My idea is to patch in clear-view sections as it is built, to show the various operating features, so you can look inside and see how it all works, and its construction aspects - more or less like a "science" kit.

I am undecided whether to go with clear acetate sections near each feature, or simply going "half and half" with the covering...using tissue covering, doped and decaled on the right half of the plane and then using transparent monokote on the "inside" half where all the control links are.

I think the berkeley scale ducted fan kit series are a marvel, and should make a great display. They are definetly a "master builder" type balsa kit, as each one features much fueselage planking, and delicate framework. Truely the peak of design and building in its own era in my opinion for being a 1/2A engine class ship.

I have spoken with Dale about the possible availability of any remaining control units, but unfortunatly learned there are no more around for sale.