Sikorsky Aircraft S-52 (HO5S-1 / H-18A)

Light Utility Helicopter

Sikorsky HO5S-1 (S-52) United States Marine Corps WB-46 52-010 © Karsten Palt
Photo ©: Karsten Palt
The Sikorsky S-52 is a 2-seat single-engine light utility helicopter built by the American manufacturer Sikorsky Aircraft. The main production variant was the HO5S-1 in Service with the US Marine Corps.
The version S-52-2 was a four-seat variant.
Propulsion1 Piston Engine
Engine ModelFranklin O-425-1
Engine Power183 kW245 hp
max. Speed (vne)178 km/h96 kts
  110 mph
Service Ceiling4.724 m15.500 ft
Rate of climb396 m/min1300 ft/min
Range669 km361 NM
415 mi.
Empty Weight744 kg1.640 lbs
max. Takeoff Weight1.225 kg2.700 lbs
Rotor Blades (main/tail)3
Main Rotor Diameter10,06 m33 ft 0 in
Tail Rotor Diameter1,75 m5 ft 9 in
Rotor Disc Area79,5 m856 ft
Length (Fuselage)8,79 m28 ft 10 in
Length11,95 m39 ft 2 in
Height2,64 m8 ft 8 in
First Flight12.02.1947
Production Statusout of production
Total Production93
ICAO CodeS52
Data for (Version)Sikorsky HO5S-1G (S-52-3)
VariantsS-52-1, S-52-2, S-52-3, YH-18A, HO5S-1, HO5S-1G, S-52-5

[Photo-ID: 10353] Karsten Palt 2014-05-28
Sikorsky HO5S-1 (S-52), United States Marine Corps (USMC), WB-46, c/n 52-010, Karsten Palt, 2014Sikorsky
HO5S-1 (S-52)
United States Marine Corps (USMC)
Reg.: WB-46
c/n: 52-010
NASM Udvar Hazy Center [Chantilly, VA]