Here's a canted cluster tractor motor design. It's a scale model of my ole trusty high school T-Square I used in the mid 1970's. So is it a scratch build... or a scale build? It's pretty simple. Just some laminated plywood for the blade and a head designed as a hollow box structure so (3) 12" chutes can ride on board to apogee. Powered by (2) D-12-3 BP engines it sim's to nearly 1000 feet. Should be an unusual build too.