Cierva W.9

The Cierva W.9 was a British 1940s experimental helicopter with a three-blade tilting-hub controlled main rotor and torque compensation achieved using a jet of air discharged from the rear port side of the fuselage.

The Cierva W-9 first flew in 1944. - vBulletin® v3.8.4, Copyright ©2000-2012, Jelsoft Enterprises Ltd.1

Made by Cierva Autogiro CompanyLtd..

4 Cierva W.9, the first trials of a tail rotor-less helicopter 3 Figure 1.5 Schematic of the NOTAR system 4 Figure 1.6 Schematic of the CIRSTEL system 4 Figure 1.2
Power Alt
153.0
Loaded Weight Main
2647.0
Type Of Prop
inline piston engine
Number Built
1
Crew
two
Loaded Weight Alt
1201.0
Retired
1946
Jet Or Prop
prop
Primary user
Air Ministry
Span Alt
10.97 m
Plane Or Copter?
copter
Engine(prop)
De Havilland Gipsy Six
Manufacturer
Cierva Autogiro Company
Ltd.
First Flight
1945
Span Main
1097.28
Power Main
205 hp
Number Of Props
1
Category
British experimental aircraft 1940-1949
British helicopters 1940-1949
Cierva aircraft
NOTAR helicopters

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