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

Fall 2017-Spring 2018

This newsletter covers the work on the Jefferson Jyrodyne prototype and 1/10th scale drones from July 2017 until the end of April, 2018. The next issue will be the last of the series. Further references may be found on website,

I do some blogging now on an irregular basis on the website about […]

Ruminations of the Inventor

The Need for Steerable Ballistic Parachutes

All this quad/sex/octa copter crap is catching on. In countries with so few pilots you would expect a few colossal mistakes along the way, and we are sure seeing it with the new Chinese products being touted.

The mistakes are classified, but available to those that think it’s looking […]