Jefferson Jyrodynes

The Jefferson Jyrodyne™ is a 210 hp, two passenger aircraft trainer when in VTOL (vertical takeoff and landing) mode. In STOL or what is considered conventional flight, it is a four passenger aircraft with a 600-1000 lbs. payload.

Jefferson Jyrodynes, Inc. is a Chapter S corporation whose ultimate objective is to build VTOL fire trucks and ambulances. We plan to offer homebuilders kits for a personal aircraft version, along with a hopping airboat version.

Recent Posts

The Controls Impact on excessive aeroelasticity in the design of passenger drones

When one reviews the design of larger drones, one is tantalized by the heavy structural design of the propeller support struts. It is partially due to the very large power outputs – i.e, thrust, on an extended cantilever arm. This can also provide an excessive twisting stress on the fuselage, particularly in yawing flight. […]

Spring 2019

Work continues on modifying the original Jefferson Jyrodyne design to take advantage of recent electric motor developments.  A far larger CL and CG range will now be allowable than was theoretically possible before, and has an extra dimensional consideration, since both CL and CG can now more easily move in two dimensions, rather than […]