RE: new Arf Boomerang 14lb thrust
Dave Hi,
The prototype model is indeed powered by a P-60. I know Alan did have some weight in there to get the CG forward but I certainly don't remember it anywhere near 1.5lbs. I also know that I l flew it with the weight in and it was too nose heavy so Alan removed some on subsequent flight which made handling a lot better for me. I am sorry that I don't have exact figures as I was just flying Alan's model.
Normally Alan would be straight on here to help but I know he is now in the US clearing the us delivery of the intro's and prepping for Florida Jets. I will see him On Thursday in Florida so if he hasn't answered by then, which I am sure he will I will tell him to get on here and help you guys out.