Developed in 1949.  The crew seating was changed to side-by-side, differing from its tandem predecessor, the S4A.

Overview

Data on design, manufacture and status

Design authority: Seibel Helicopter Company

Primary manufacturer: Seibel Helicopter Company

Parent type: No type defined

Aircraft status: No longer flying

Configuration

Primary flight and mechanical characteristics

VTOL type: Helicopter

Lift configuration: Single main rotor

Dedicated control device: Tail rotor

Crew required: 1-3

Crew seating: Side-by-side

Landing gear: Skids

Overall Dimensions

Data on aircraft size

Overall Width: 8.84 m (29.0 ft)

Engine Details

Aircraft powerplant (lift and/or propulsion)

Total number of engines: 1

Engine designation: Franklin 6A4-165-B3 reciprocating

Engine manufacturer: Franklin Engine Company

Take-off / rated power: 123 kW (165 hp)

Weights and Performance

Data on aircraft weight and flight characteristics

Max Gross Weight (ground): 748 kg (1650 lb)

Max Range: 177 km (96 nm)

Related VFS Resources

Resources related to the S4B , provided by the Vertical Flight Society.
Forum Proceedings
 
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Related Public Resources

Resources related to the S4B , provided by public sources across the internet.

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