Prewitt Convertiblade VTOL Aircraft

[hesham]

Hi,


here is a strange concept for Prewitt as convertiblade VTOL aircraft,I can't
discover what was that system ?.


http://kulturserver-nds.de/home/hubtest/medien/Typenkartei3953xGUN7x9T3Z7.pdf


Page 59


By the way,the Prewitt designer was mention in Spangenberg index;


http://www.secretprojects.co.uk/forum/index.php/topic,9832.msg91314.html#msg91314

 

[hesham]

The older same concept;

https://patents.google.com/patent/US4059247

 

[hesham]

Hi,

Convertiblade​

Patent number: 4059247
Abstract: An aircraft which operates between the surface and the air as a rotating wing aircraft (helicopter-autogiro). When airborne a rotor pylon latch is released and the pilot flies the rotor system aft about its pivot to the fuselage to form the tail of a high speed jet propelled airplane. Altering the pitch angle of the blades controls the aircraft, called a convertiblade, for helicopter-autogiro and airplane configurations and for moving the rotor between its configurations. The rotor is revved up with rocket fuel piped to burner jet nozzles located at the blade tips. A jump-take-off may be used to efficiently get the convertiblade airborne at a good climbing speed. Prior to landing, the rotor blades are released from their operation as roll control surfaces for the airplane configuration; then, they are permitted to rev-up and act as a brake to reduce the speed of the airplane.
Type: Grant
Filed: September 15, 1976
Date of Patent: November 22, 1977
Inventor: Richard H. Prewitt

https://patents.justia.com/inventor/richard-h-prewitt

 

[hesham]

Hi,

https://wright.libraryhost.com/repositories/2/archival_objects/205443

 

[Stargazer]

Prewitt submitted a VTOL aircraft design (jointly with Atlantic Research, Alexandria, Va.) to the Tri-Service TS-152 competition in 1961. It could be that one.

 

[hesham]

Prewitt submitted a VTOL aircraft design (jointly with Atlantic Research, Alexandria, Va.) to the Tri-Service TS-152 competition in 1961. It could be that one.

Yes that's right,it was called Roto-Jet.