Barnett J4B

J4B
Role	Recreational autogyro
National origin	United States
Manufacturer	Homebuilt
Designer	Jerry Barnett

The Barnett J4B is a small gyroplane marketed in the United States by Barnett Rotorcraft for homebuilding. Originally flown as the J-3M with an open cockpit and fabric-covered sides, later versions have a fiberglass cockpit pod either partially or fully enclosing the pilot. Apart from the basic J4B, versions available in 2007 included the BRC540 (two seats side-by-side) and J4B2 (two seats in tandem). A J4B2 piloted by Ron Merkle holds a coast-to-coast speed record in the United States for gyrocopters.

Variants

J4B

Single-seat autogyro with 23 ft rotor.

J4B-2

Two-seat variant of the J4B with a 25ft 4in rotor.

Specifications (typical J4B)

General characteristics

• Crew: one pilot

Performance

References

• Taylor, Michael J. H. (1989). Jane's Encyclopedia of Aviation. London: Studio Editions. p. 121.
• Barnett Rotorcraft company website
• Popular Rotorcraft Association website