R-4 vs Westland Wasp
R-4 vs Westland Wasp at a glance — top speed 121 vs 193 km/h, range 210 vs 487 km, max takeoff weight 1,150 vs 2,495 kg, built 131 vs 133 units.
Specifications
|
R-4 |
Westland Wasp |
| Origin country |
🇺🇸 United States |
🇬🇧 United Kingdom |
| Category |
Military Helicopters |
Military Helicopters |
| Manufacturer |
Sikorsky |
Westland |
| First flight |
13 January 1942 |
28 October 1962 |
| Year introduced |
1944 |
1964 |
| Number produced |
131 units |
133 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 |
12.3 m |
| Maximum speed |
121 km/h |
193 km/h |
| Operational range |
210 km |
487 km |
| Service ceiling |
2,400 m |
3,700 m |
| Max. takeoff weight |
1,150 kg |
2,495 kg |
| Empty weight |
950 kg |
1,566 kg |
| Total thrust |
--
|
1 x 530 kW
|
Detailed Comparison
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Former operators · 131 built
Former operators · 133 built
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Which is faster, the R-4 or Westland Wasp?
The Westland Wasp is faster with a maximum speed of 193 km/h compared to the R-4's 121 km/h, a difference of 72 km/h.
Which has longer range, the R-4 or Westland Wasp?
The Westland Wasp has a longer range at 487 km compared to the R-4's 210 km.
Which can fly higher, the R-4 or Westland Wasp?
The Westland Wasp has a higher service ceiling at 3,700 meters (12,139 ft) compared to the R-4's 2,400 meters (7,874 ft).
Which is heavier, the R-4 or Westland Wasp?
The Westland Wasp has a higher maximum takeoff weight at 2,495 kg compared to the R-4's 1,150 kg.
Which is larger, the R-4 or Westland Wasp?
The Westland Wasp is longer at 12.3 meters compared to the R-4's 10.8 meters.
Which entered service first, the R-4 or Westland Wasp?
The R-4 entered service first in 1944, 20 years before the Westland Wasp which entered service in 1964.
Which has been built in greater numbers, the R-4 or Westland Wasp?
The Westland Wasp has been produced in greater numbers with 133 units compared to 131 units of the R-4.
