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J1-B Homebuilt Ultralight Aircraft Plans

Not your blurred, crappy photos of plans, THESE plans are freshly scanned from A1 size clear originals into PDF format. These files can be taken on a disk to a plan printing shop and printed out super clear. Also included is a builders manual in PDF, a photo gallery and lots of other useful construction information. No useless disk fillers here.

Plans are for full size, human piloted aircraft.

J-1B is a single seat tailwheel aircraft with pusher prop. Wings strut-braced, with a 13% thick Clark "Y" airfoil and no flaps. Typical construction in either wood, or wood foam & glass composite. A simple to build airplane. Suitable for engines up to 50 Hp including VW, Rotax and similar. 

Specifications: (approx.with VW 1600 engine)

  • Wingspan: 24 ft 7in
  • Wing Chord: 3 ft 3in
  • Length: 16 ft 4in
  • Height: 4 ft 6 in
  • Empty Weight: 390 lbs
  • Maximum Weight: 650 lbs
  • Maximum Speed, Level Flight: 100 mph
  • Cruise speed: 95 mph
  • Stall speed: 35 mph
  • Take-off Run: 330 ft
  • Landing Roll: 165 ft
  • Fuel Capacity: 4 gallons
  • Nominal Range: 240 miles

File Size: 30mb ZIP file containing PDFs.

Price: $6.00