Sikorsky S-72

The Sikorsky S-72 was an experimental hybrid helicopter-fixed-wing aircraft developed by helicopter manufacturer Sikorsky Aircraft.

* Sikorsky S-72: rotor systems research for NASA (1975) * Sikorsky S-75: Advanced Composite Airframe Program (ACAP) all-composite proof of concept helicopter (1984) 1
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Made by Sikorsky Aircraft.

The X-50A built upon the work of the Sikorsky S-72 X-Wing program of the 1980s by designing the vehicle as a multi-mode aircraft from the ground up.3
I found in NASA report that,the Sikorsky S-72 was called (design number No.233),and I think it means DS-233,unfortunately I don't remember this report now.4
Jet Or Prop
both
Height Alt
4.42 m
Engine(jet)
General Electric TF34-GE-400A
Length Alt
21.50 m
Max Takeoff Weight Main
lb
Thrust Main
lbf
Power Alt
1045.0
Lists
* List of helicopters
Max Speed Alt
13800.0
Type Of Prop
turboshaft
More General
* Take-off weight without auxiliary jets: 8
300 kg * Empty weight without auxiliary jets: 6
535 kg
Max Speed Main
200
Cruise Speed Main
140
Max Takeoff Weight Alt
11815.0
Number Built
2
Crew
2
Thrust Alt
4180.0
Span Main
ft in
Cruise Speed Alt
9600.0
Height Main
ft in
Span Alt
18.90 m
Plane Or Copter?
both
Engine(prop)
General Electric T58-GE-5
Afterburning Thrust Alt
kN
Manufacturer
Sikorsky Aircraft
First Flight
12
Number Of Jets
2
Climb Rate Main
600
Power Main
shp
Number Of Props
2
Type of jet
turbofan
Empty Weight Alt
9480.0
Afterburning Thrust Main
lbf
Length Main
ft in
Similar Aircraft
* Sikorsky S-69* Boeing X-50
Related
* Sikorsky S-61
Empty Weight Main
lb
Category
Sikorsky aircraft
Stoppable rotor helicopters
United States experimental aircraft 1980-1989
United States helicopters 1980-1989
VTOL aircraft

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