Group, I really would like to see how they plan to get a 1800 pound

aircraft

to climb at 5000 ft/min with only 450 HP! I would like to know which

magic

physics book they used for those calcs! They list the fuel capacity at

50

gallons. When they convert to turbine the 1 hr max flight time would be
somewhat limiting. Is it real or is it Moller?
Bill Jepson

Doing the physics; 1800 pounds at 5000 ft per min 83.4 FPS is 1800 times

83.4 FPS is

150,000 ft pounds per second. Dividing by 550 ft lb/sec or one HP  gives

us  272 HP

not counting drag and prop efficiency. Assuming the rotor in the duct is

80% efficient

that means 340 HP out of the engine not counting drag. Doing the same

sorts of

calculations on the Moller sky car also makes it look possible.

The devil is in the details of the control system as the Wright brothers,

Moller and

AMV will find out if it ever gets that far.

Paul Lamar

Attila Melkuti wrote:

I am very much aware that the devil is in the flight control design, so
believe me I paid attention to that.
About the turbo-shaft version, it is very naive to assume that that would be
exactly the same size as this prototype. Due to the lighter weight of the
engine it will of course carry more fuel, and it will incorporate all the
modifications that are necessary.

Attila Melkuti

Where and when are you going to test it Attila? I would like to be there.

Paul Lamar

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