Sikorsky: S-72 Rotor Systems Research Aircraft

General data

Producer info

Pictures

Video clips

Data sources

Names and dates
Market original model designation
S-72
Market model designation (english translation or spelling)
S-72
Original model name
Rotor Systems Research Aircraft
Model name (english translation or spelling)
Rotor Systems Research Aircraft
Also known as
S-72 RSRA
Also known as (english translation or spelling)
S-72 RSRA
First flight date and time
1976-10-12
Config info
Rotorcraft typeCompound helicopter
Config
Single rotor
Way of counteracting main rotor torque
Tail rotor
Weights
Maximum Takeoff Weight (MTOW)
11971
kg
Manufacturers empty weight (MEW)
9440
kg
Cabin and cockpit
Maximum number of people onboard
3
Cockpit seating arrangement
Side-by-side
External dimensions
Fuselage length
19.41
m
Fuselage width
2.54
m
Total length (rotors turning)
23.14
m
Overal height
4.72
m
Wing span
13.75
m
Main rotor
Main rotor diameter
18.90
m
Main rotor direction of rotation
Counterclockwise
Main rotor angular speed
203
rpm
Number of blades
5
Main rotor blade chord
0.46
m
Tail rotor
Tail rotor diameter
3.23
m
Tail rotor direction of rotation
Clockwise
Tail rotor angular speed
1244
rpm
Number of blades
5
Tail rotor blade chord
0.19
m
Powerplant
Engine model (System no.: 1)
General Electric TF34-GE-2
Engine model (english translation or spelling) (System no.: 1)
General Electric TF34-GE-2
Engine model (System no.: 2)
General Electric T58-GE-5
Engine model (english translation or spelling) (System no.: 2)
General Electric T58-GE-5
Engine model (System no.: 3)
General Electric T58-GE-5
Engine model (english translation or spelling) (System no.: 3)
General Electric T58-GE-5
Engine model (System no.: 4)
General Electric TF34-GE-2
Engine model (english translation or spelling) (System no.: 4)
General Electric TF34-GE-2
Engine type (System no.: 1)
Turbojet
Engine type (System no.: 2)
Turboshaft
Engine type (System no.: 3)
Turboshaft
Engine type (System no.: 4)
Turbojet
Engine dry weight (System no.: 2)
151.95
kg
Engine dry weight (System no.: 3)
151.95
kg
Number of engines
4
Total maximum continuous power
2800
HP
Total maximum power
3000
HP
Static thrust
82515
N
Performance
Maximum horizontal flight speed (Vh)
556
km/h
0.0696