One of Al Mooney's first design was the Dart, when he and KK Culver established the Dart Aircraft Company. This trim two-seater had a semi-elliptical plan form (my favorite!), and was powered by a small radial engine (my favorite!). It was quite the little aerobat and, with a Warner 145 HP should have had a good power-to-weight ratio--especially in the early 40's!