Seibel S-4

The Seibel S-4 was a two-bladed single-engine helicopter built by Seibel Helicopter. Designed by Charles Seibel the S-4 was evaluated by the United States Army under the designation YH-24 Sky Hawk but would be rejected for service. The S-4B would serve as the basis for the design of the Cessna CH-1 Skyhoook the only helicopter Cessna ever produced.

Made by Seibel Helicopter.

Jet Or Prop
prop
Designer
Charles Seibel
Length Alt
8.48 m
Max Takeoff Weight Main
1529.0
Height Alt
3.05 m
Max Speed Alt
105.0
Developed Into
Cessna CH-1
Max Speed Main
62 mph
Power/mass Main
288.0
Power/mass Alt
Capacity
583.0
Cruise Speed Main
58 mph
Max Takeoff Weight Alt
695.0
Ceiling Main
4298.0
Number Built
2
Crew
1
Cruise Speed Alt
93.0
Height Main
307.34000000000003
Primary user
United States Army
Plane Or Copter?
copter
Power Alt
95
Manufacturer
Seibel Helicopter
First Flight
January 1949
Power Main
127 hp
Number Of Props
1
Empty Weight Alt
430.0
Length Main
848.36
Empty Weight Main
946.0
Ceiling Alt
1
310 m
Category
Helicopters
Seibel aircraft

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