R-4 vs TH-55 Osage
R-4 vs TH-55 Osage at a glance — top speed 121 vs 140 km/h, range 210 vs 480 km, max takeoff weight 1,150 vs 703 kg, built 131 vs 2,800 units.
Specifications
|
R-4 |
TH-55 Osage |
| Origin country |
🇺🇸 United States |
🇺🇸 United States |
| Category |
Military Helicopters |
Military Helicopters |
| Manufacturer |
Sikorsky |
Hughes |
| First flight |
13 January 1942 |
2 October 1956 |
| Year introduced |
1944 |
1961 |
| Number produced |
131 units |
2800 units |
| Average unit price |
$10K |
-- |
| Wingspan |
11.6 m |
7.7 m |
| Height |
3.8 m |
2.5 m |
| Length |
10.8 m |
8.8 m |
| Maximum speed |
121 km/h |
140 km/h |
| Operational range |
210 km |
480 km |
| Service ceiling |
2,400 m |
4,000 m |
| Max. takeoff weight |
1,150 kg |
703 kg |
| Empty weight |
950 kg |
435 kg |
| Total thrust |
--
|
1 x 130 kW
|
Detailed Comparison
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Which is faster, the R-4 or TH-55 Osage?
The TH-55 Osage is faster with a maximum speed of 140 km/h compared to the R-4's 121 km/h, a difference of 19 km/h.
Which has longer range, the R-4 or TH-55 Osage?
The TH-55 Osage has a longer range at 480 km compared to the R-4's 210 km.
Which can fly higher, the R-4 or TH-55 Osage?
The TH-55 Osage has a higher service ceiling at 4,000 meters (13,123 ft) compared to the R-4's 2,400 meters (7,874 ft).
Which is heavier, the R-4 or TH-55 Osage?
The R-4 has a higher maximum takeoff weight at 1,150 kg compared to the TH-55 Osage's 703 kg.
Which is larger, the R-4 or TH-55 Osage?
The R-4 is longer at 10.8 meters compared to the TH-55 Osage's 8.8 meters.
Which entered service first, the R-4 or TH-55 Osage?
The R-4 entered service first in 1944, 17 years before the TH-55 Osage which entered service in 1961.
Which has been built in greater numbers, the R-4 or TH-55 Osage?
The TH-55 Osage has been produced in greater numbers with 2,800 units compared to 131 units of the R-4.
