Design

The Jefferson Jyrodyne™ will offer significant improvements in safety, maintenance costs, and speeds over the VTOL aircraft available today, and it will do a better job of it than any other of the VTOL designs currently under development.

The prototype is a slow, simple trainer that is similar in concept to the Cessna 150 or J3 Cub.

 

Safer Operations

 
The helicopter flight envelope had major areas in it where failure of the engine will result in an uncontrolled crash when autorotation cannot be implemented in time.

The Jefferson Jyrodyne™ design will not have any areas in its flight envelope where a single engine failure will result in an uncontrolled crash.  The VTOL propulsion is enclosed, so there are no rotor or tail boom strikes possible under any flight conditions.

 

Reduced Maintenance Costs

 
Helicopters have many limited life, expensively machines and heat-treated components, which must be replaced after only 1000 hours of flight.  Vibration and fatigue is a serious and continual problem because of the inherent design.

The Jefferson Jyrodyne™ design utilizes off-the-shelf industrial components and will circumvent the short life of the helicopter components by operating as a conventional aircraft during most of its mission hours as an aircraft

 

Higher Speeds

 
Since the Jefferson Jyrodyne™ can operate as a conventional aircraft; it has none of the theoretical forward speed limitations so true of the helicopter or other rotorcraft.  It is possible to eventually build a supersonic Jefferson Jyrodyne™.

Zero stall speed

 
Careful balance of the areas of the lifting surfaces has resulted in an unusual design discovery – the Jyrodyne’s latest configuration has a stall speed of zero. This means a vertical descent can be undertaken with complete control – with the ability to power out of the vertical descent while in conventional flight mode simply by applying throttle.