Mark,
Thank you for the insight, I hadn't considered that weight might induce a flutter issue, and I have no desire to go the way of Zubair Khan.
The wing area is 88.7 sq ft, and the canard is 14.7 sq ft, with a span of 12.6ft. At a guess, say 2 of those 12.6 ft are in the nose, so if I read this right, the lifting surface of the canard is 14.7 sq ft - 10.6 ft long and 1.38 ft wide. The max weight is 2050 lbs, and if the canard is lifting 25%, then the wing loading is about 34.7 lbs per square ft.
If we lengthen the canard by 3 inches per side (keeping the original size : ), that adds 0.6 ft X1.38 ft = 0.828 sq ft or 28.7 lbs more lift on the canard.
The canard CG or center of lift is about station 20, so a delta of 60 to ideal CG. 28.7 lbs x 60 inches = 1724 inch lbs.
The front seats are at station 59 or 41 inches delta to ideal CG. Y new lbs in the front seat X 41inches = 1724 inch lbs so Y = 42 lbs additional front seat weight.
All with no mad science . Thanks for the tip!
Kent,
While the Bearhawk is certainly built for the weight, I don't normally use off airport runways, and the shorter range, slower top speed, and high kit purchase price don't fit our family goals of fast long distance flight. There are faster planes, but a stone will fly if you strap on a big enough engine (I wouldn't want to pay the fuel bill though). I just don't know of any other four place experimental that can match the cozy for range and speed in the 180 to 200 hp range.