Verti-Drive 750 TC

The search for the ideal engine for a single place ultralight  helicopter has always been limited by one thing or another. 2 Cycle engines are light weight with immediate power, but the engine requires mixed fuel and oil, and careful handling in order to be reliable ....... and when it quits, no one is surprised ----for it is two cycle.
Those parameters are not quite good enough if you are going to be flying over open water, or mountains, or jungle, or built-up areas, or just a long way from home over barren territory. The engine has to produce reliable power, hour after hour, no matter what you encounter. 
For your peace of mind, it can never fail.
It has to run so reliably, without a burp or fluctuation,so that you are entirely free to concentrate on navigation or the task at hand.

In commercial aviation, it is just this sort of confidence that enables the pilot to fly the helicopter to the edge of the flight envelope, because, if he has  fuel in the tank and he has not accepted a task that is beyond his skill level, he'll pull it off and return home to tell about it.
 












Ultralight helicopter aviation doesn't generally have those sort of stories.
Now, if that is to change, and the personal use pilot is to have the same confidence of the commercial pilot, the ultralight market has to have a power plant that has the same reliable qualities. Otherwise the ultralight  helicopter will always, with few exceptions, be a toy thatoperates over accessible territory and within rescue range of people on the ground.

The Verti-Drive 750 TC is a new engine conversion whose developers definitely aspire to all the peace of mind that lesser power plants do not provide -- and more.

In fact, 4 cycle power makes the principle of  "free airspace" possible for the first time: Freedom to fly to any horizon and beyond.
The combination of 4 cycle power on a light airframe, with easily deployed landing  gear, a rotor brake, and a simple fuel bladder, makes it possible to go anywhere you wish because there will always be Super Grade fuel ahead of you at a convenient roadside gas station.
2 Cycle might aspire to such freedom, but you would have to burden yourself with carrying the synthetic oil you need to mix with the fuel, and then, -- when that was all gone - how would you get back ?

The key to Free Airspace then, is an engine that runs so reliably on miserly amounts of regular gas, that you can strap yourself in for a four hour flight, and know you are going to get there -- just as  reliably as if you were driving your car, and a lot sooner. 
Let's see what the future holds.