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R-4 vs UH-1 Iroquois "Huey"

Sikorsky R-4 military helicopters side profile drawing
🇺🇸 R-4
Bell UH-1 Iroquois "Huey" military helicopters side profile drawing
🇺🇸 UH-1 Iroquois "Huey"
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Specifications
R-4 UH-1 Iroquois "Huey"
Origin country 🇺🇸 United States 🇺🇸 United States
Category Military Helicopters Military Helicopters
Manufacturer Sikorsky Bell
First flight 13 January 1942 22 October 1956
Year introduced 1944 1959
Number produced 131 units 16000 units
Average unit price $10K $1.3 million
Wingspan 11.6 m 14.6 m
Height 3.8 m 4.5 m
Length 10.8 m 12.7 m
Maximum speed 121 km/h 222 km/h
Operational range 210 km 510 km
Service ceiling 2,400 m 5,910 m
Max. takeoff weight 1,150 kg 4,309 kg
Empty weight 950 kg 2,087 kg
Total thrust 0 1 x 820 kW
Performance Radar Chart

Overview

The R-4 and the UH-1 Iroquois "Huey" are both Military Helicopters, manufactured by Sikorsky and Bell respectively.

Top speed is 121 km/h for the R-4 vs 222 km/h for the UH-1 Iroquois "Huey". The R-4 has an operational range of 210 km vs 510 km for the UH-1 Iroquois "Huey". The UH-1 Iroquois "Huey" operates at altitudes up to 5,910 m compared to 2,400 m for the R-4. At 4,309 kg MTOW, the UH-1 Iroquois "Huey" is 3.7x the R-4's 1,150 kg.

The R-4 has been produced in 131 units vs 16,000 for the UH-1 Iroquois "Huey". Unit cost is $0.01M for the R-4 vs $1.3M for the UH-1 Iroquois "Huey". The R-4 first flew 14 years before the UH-1 Iroquois "Huey" (1942 vs 1956).

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Frequently Asked Questions

Which is faster, the R-4 or UH-1 Iroquois "Huey"?
The UH-1 Iroquois "Huey" is faster with a maximum speed of 222 km/h compared to the R-4's 121 km/h, a difference of 101 km/h.
Which has longer range, the R-4 or UH-1 Iroquois "Huey"?
The UH-1 Iroquois "Huey" has a longer range at 510 km compared to the R-4's 210 km.
Which can fly higher, the R-4 or UH-1 Iroquois "Huey"?
The UH-1 Iroquois "Huey" has a higher service ceiling at 5,910 meters (19,389 ft) compared to the R-4's 2,400 meters (7,874 ft).
Which is heavier, the R-4 or UH-1 Iroquois "Huey"?
The UH-1 Iroquois "Huey" has a higher maximum takeoff weight at 4,309 kg compared to the R-4's 1,150 kg.
Which is larger, the R-4 or UH-1 Iroquois "Huey"?
The UH-1 Iroquois "Huey" is longer at 12.7 meters compared to the R-4's 10.8 meters.
Which is more expensive, the R-4 or UH-1 Iroquois "Huey"?
The UH-1 Iroquois "Huey" is more expensive at approximately $1.3 million per unit compared to the R-4 at $0.0 million.
Which entered service first, the R-4 or UH-1 Iroquois "Huey"?
The R-4 entered service first in 1944, 15 years before the UH-1 Iroquois "Huey" which entered service in 1959.
Which has been built in greater numbers, the R-4 or UH-1 Iroquois "Huey"?
The UH-1 Iroquois "Huey" has been produced in greater numbers with 16,000 units compared to 131 units of the R-4.