USA Little Known Helicopters during WWII

[southwestforests]

Tiedje helicopter project

Slick looking thing right out of a gallery of futuristic designs.

 

[hesham]

Hi,

there was also a Jet-propelled Helicopter project by Dow Chemical
Company in 1943 ?.

 

[Stargazer]

Hi,

there was also a Jet-propelled Helicopter project by Dow Chemical
Company in 1943 ?.

Though not an aviation manufacturer, this firm conducted helicopter-related jet propulsion studies in 1943, under the supervision of Prof. E. A. Stalker; it also extensively modified a Vultee Vigilant monoplane in its workshops circa 1946, with a hump over cockpit housing blower drawing in air from wing induction slot.