The aircraft was given its name because the designer and his wife, Carla Nusbaum, could not decide on an appropriate name for the design. The John Doe features a
strut-braced high-wing, a two-seats-in-
tandem enclosed cabin, fixed
conventional landing gear and a single engine in
tractor configuration. The aircraft is made from welded steel tubing, with its flying surfaces covered in
doped aircraft fabric. Its span wing mounts
flaps,
leading edge slats, drooping
ailerons, stall fences,
winglets and has a wing area of . It employs a
NACA 4415 airfoil. The acceptable power range is and the standard engines used are the
Continental IO-240 and
Continental O-200 powerplants. The aircraft has a typical empty weight of and a gross weight of , giving a useful load of . With full fuel of the payload for the pilot, passenger and baggage is . The standard day, sea level, no wind, take off with a engine is and the landing roll is . The manufacturer estimated the construction time from the supplied kit as 400 hours. ==Operational history==