PUDDLE JUMPERS. Ray Stits of Stits Aircraft, W. Riverside Airport, Calif., has provided U.S. amateur builders with a series of attractive ultra-light designs. One of his latest creations is the SA-8A Skeeto (c/n. 301), a single-seat, parasol monoplane. The Skeeto is powered by an 18-h.p. Evinrude outboard motor.