Helicopter Engineering H.100 prototype (1947)

[Stargazer]

Two photographs of this rare type, of which little is known (did it even fly??):

 

[Stingray]

At this site it is referred to as the Helicopter Engine & Construction Corporation Model 100:


http://www.airplanesandrockets.com/helicopters/more-of-those-fabulous-mini-copters-jan-1957-american-modeler.htm

shown in '47; early attempt at tiny personal craft. Simplified flight control system which eliminated separate cyclic and collective controls and pedals; all controls combined on single stick, actuated similar to auto. 76 hp Continental engine fitted with jet exhaust cooling system. Plywood construction; seated pilot with 200 lb baggage. Rotor dia., 18', gross wt, 750 lbs; max. speed, 95-100 mph; cruising, 80 mph; rate of climb, 1200 ft/min. Craft test flown; target price of $5000 with mass production price of $2500; 2·seater proposed by raising rotor shaft 3', placing passenger section behind pilot. Neither craft produced.

 

[Stargazer]

At this site it is referred to as the Helicopter Engine & Construction Corporation Model 100

It's wrong. It was definitely called the Helicopter Engineering and Construction Corporation.

See the patent for the H.100 design by Harold E. Lemont (who went on to design the Model 104 Convertiplane for Jacobs):

http://www.google.com/patents/USD152342

 

[Stingray]

Ah, thanks for the correction. It seems they've mislabeled a Monte-Copter concept in there too. ???

 

[Platt-LePage Aircraft]

The name should be Harold E. Lemont.

 

[Stargazer]

The name should be Harold E. Lemont.

Thanks for noticing my typo! I made the correction.

 

[hesham]

Hi,

here is the Model-100 single-seat and Model-101 two-seat artist drawings.

http://archive.aviationweek.com/image/spread/19460601/46/2

 

[hesham]

Hi,

http://archive.aviationweek.com/image/spread/19470301/64/2

 

[Stargazer]

H.E.C.C. had been founded by Antoine Gazda, and just like his 1946 creation [NC269V], the 1947 H.100 [NX69154] was called Helicospeeder.

More on Gazda: Antoine Gazda's « Helicospeeder »: a cousin of Sikorsky's VS-300

 

[persil]

A Mr Shawn Baker collection photos appeared on 1000aircraftphotos.com to complement this thread.

 

[Stargazer]

A Mr Shawn Baker collection photos appeared on 1000aircraftphotos.com to complement this thread.

Awesome, thanks!

 

[persil]

Hi! Just found another picture in the book of Mr Jean Boulet - History of the helicopter as told by its pioneers 1907-1956