[Danijel0frk’s] friends may call him unbalanced, but his propellers are always spot on. His well-balanced props are thanks to this magnetic balancer he built from scrap PC parts and pilfered office ...
When light sport aircraft manufacturer JDT Mini-Max (Nappanee, Ind.) wanted to offer its customers a lighter alternative to its aluminum propeller spinner — the aerodynamically shaped conical “nose” ...