other helicopter designs
Airscooter Coaxial Helicopter Airscooter Corporation - float equipped twin contra-rotating rotor blade single seat helicopter.
A novel motorcycle style helicopter with a purpose built vertically mounted high tech 4 stroke engine. More of a field hopper though it could possibly be an excellent addition to a luxurey motor yatch?
Ezycopter Coaxial Helicopter Yoshine - single seat coaxial helicopter.
A stable military and civilian VTOL platform with different models being developed for differing purposes.
Gyrodyne Coaxial Helicopter Historical and information site only on XRON-1 Rotorcycle coaxial helicopters.
Historical military development originally powered by a 40hp 2 stroke before moving to Porsche auto engine conversions. Next was the installation of the more reliable Solar turbine engine. With poor acceptance of purpose, the craft was then redeveloped into a Naval VTOL platform.
LAF-01 Tandem Helicopter Laflamme Helicopters - auto engine powered tandem rotor 2 seat helicopter.
An unusual concept of developing a civilian tandem helicopter. Originally with auto engine power, auto drive train components and all composite triple blades this on again - off again design has moved into different rotor blades (now two blade alloy teetering type) while testing continues on other components.
Rotorcycle Gyrodyne Helicopters Inc. - coaxial helicopter designs both manned and un-manned.
The official website for this craft.