Nonetheless, discussing this with Meyer got me thinking about how I would design a four-seat jet for amateur builders. The packaging is tricky. A conventionally configured recip's combination of short, heavy nose and long, light tail makes for an airplane that is naturally balanced and aerodynamically stable. But a single jet engine has to be behind the cabin, and air has to get to it without a lot of tortuous ducting. The engine has to be reasonably accessible, and its exhaust can't blast the empennage. Meyer's own first sketch looked like an Eclipse 400, with a V tail and a single engine on a pylon above the aft fuselage. Unlike the designers of airliners and business jets, however, designers of single-engine personal jets have not yet reached consensus. A quick survey of existing and proposed single-engine jets (most of which have more than four seats) finds engines that are buried, semi-buried or propped up on pylons, with intakes direct, single or bifurcated. Since the engine tends to sit so far aft, the CG creeps back and the tail surfaces grow in order to preserve stability.