Seibel S4B
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 statusDesign authority: Seibel Helicopter Company
Primary manufacturer: Seibel Helicopter Company
Parent type: No type defined
Aircraft status: No longer flying
Configuration
Primary flight and mechanical characteristicsVTOL type: Helicopter
Lift devices: 1 Single main rotor
Dedicated control device: 1 Tail rotor
Crew required: 1-3 in Side-by-side arrangement
Landing gear: Skids
Key Characteristics
Data on key physical featuresAircraft Details
Data on aircraft configuration, weights, flight performance and equipmentReferences
References and sources used
Helicopters & Autogyros of the World
Paul Lambermont, Anthony Pirie
Cassell & Company Ltd., 1959 (page 372)
Book
Cassell & Company Ltd., 1959 (page 372)
Book
S-47 | S-47/R-4 Helicopter
Vinny Devine
Sikorsky Archives | Product History, Sep 19, 2017 (page 13)
Website
Very thorugh description and details of the R-4 series helicopter
Sikorsky Archives | Product History, Sep 19, 2017 (page 13)
Website
Very thorugh description and details of the R-4 series helicopter
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.Publicly-funded resources provided by the US Government
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Public resources provided by select scholarly and academic sources
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