Sikorsky R-4B/HNS-1/Hoverfly I

 

Developed by 1942, the production aircraft were designated R-4B by the U.S. Army Air Force; HNS-1 by the U.S. Navy (which may be fitted with landing floats) and Hoverfly I by the Royal Navy.  The R-4B/HNS-1 was both the first helicopter to enter service with the U.S. military and the first in the world to go into series production [see reference].

 

 

Attribution

Attribution
Overview
Parent type Sikorsky VS-316A/S-47/R-4
Variant *No Variant assigned
Design authority Sikorsky Aircraft Div., United Aircraft and Transport Corporation
Primary manufacturer Sikorsky Aircraft Div., United Aircraft and Transport Corporation
Key Characteristics
Operational status No longer flying
Max gross weight (ground)   319 1,152 kg 2,540 lb
Crew 1-2
Seating arrangement Side-by-side
Configuration
VTOL type Helicopter
Compound type None
Lift configuration Single main rotor
Control device type Tail rotor
Features
Number of engines 1
Number of propulsors 0
Number of lift devices 1
Number of control devices 1

Sikorsky R-4B/HNS-1/Hoverfly I

 

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Sikorsky R-4B/HNS-1/Hoverfly I

 

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Sikorsky R-4B/HNS-1/Hoverfly I

 

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Sikorsky R-4B/HNS-1/Hoverfly I

 

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Sikorsky R-4B/HNS-1/Hoverfly I

 

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Sikorsky R-4B/HNS-1/Hoverfly I

 

Operated By
Private Operators No longer flying
United States Coast Guard No longer flying
United States Navy No longer flying
US Army Air Force No longer flying

Sikorsky R-4B/HNS-1/Hoverfly I

 

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Revolutionary Concepts for Helicopter Noise Reduction - S.I.L.E.N.T. Program

 

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AIAA North Texas Meeting January 19th featuring the story of Frank G. Tinker, mercenary ace in the Spanish Civil War

 

 

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Sikorsky R-4B/HNS-1/Hoverfly I

 

Overview

 

 

Sikorsky R-4B/HNS-1/Hoverfly I

Aircraft Notes

Ref. Author(s) Title Source Date Type
316 Paul Lambermont, Anthony Pirie Helicopters & Autogyros of the World 1959 Book
319 Vinny Devine S-47 | S-47/R-4 Helicopter Sikorsky Archives | Product History Sep 19, 2017 Website
  Very thorugh description and details of the R-4 series helicopter