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R-4 vs Westland Scout

R-4 vs Westland Scout at a glance — top speed 121 vs 211 km/h, range 210 vs 507 km, max takeoff weight 1,150 vs 2,404 kg, built 131 vs 150 units.

Sikorsky R-4 military helicopters side profile drawing
🇺🇸 R-4Full specs
Westland Scout military helicopters side profile drawing
🇬🇧 Westland ScoutFull specs
Specifications
R-4 Westland Scout
Origin country 🇺🇸 United States 🇬🇧 United Kingdom
Category Military Helicopters Military Helicopters
Manufacturer Sikorsky Westland
First flight 13 January 1942 29 August 1960
Year introduced 1944 1963
Number produced 131 units 150 units
Average unit price $10K --
Wing area -- m² 75.9 m²
Wingspan 11.6 m 9.8 m
Height 3.8 m 2.7 m
Length 10.8 m 9.3 m
Maximum speed 121 km/h 211 km/h
Operational range 210 km 507 km
Service ceiling 2,400 m 5,400 m
Max. takeoff weight 1,150 kg 2,404 kg
Empty weight 950 kg 1,466 kg
Total thrust -- 1 x 511 kW
Performance Radar Chart
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Frequently Asked Questions

Which is faster, the R-4 or Westland Scout?
The Westland Scout is faster with a maximum speed of 211 km/h compared to the R-4's 121 km/h, a difference of 90 km/h.
Which has longer range, the R-4 or Westland Scout?
The Westland Scout has a longer range at 507 km compared to the R-4's 210 km.
Which can fly higher, the R-4 or Westland Scout?
The Westland Scout has a higher service ceiling at 5,400 meters (17,716 ft) compared to the R-4's 2,400 meters (7,874 ft).
Which is heavier, the R-4 or Westland Scout?
The Westland Scout has a higher maximum takeoff weight at 2,404 kg compared to the R-4's 1,150 kg.
Which is larger, the R-4 or Westland Scout?
The R-4 is longer at 10.8 meters compared to the Westland Scout's 9.2 meters.
Which entered service first, the R-4 or Westland Scout?
The R-4 entered service first in 1944, 19 years before the Westland Scout which entered service in 1963.
Which has been built in greater numbers, the R-4 or Westland Scout?
The Westland Scout has been produced in greater numbers with 150 units compared to 131 units of the R-4.