C-17 Globemaster III vs C-5 Galaxy
Overview
The C-17 Globemaster III and the C-5 Galaxy are both Military Transport Aircraft, manufactured by McDonnell Douglas and Lockheed respectively.
Top speed is 930 km/h for the C-17 Globemaster III vs 932 km/h for the C-5 Galaxy. The C-17 Globemaster III has an operational range of 4,480 km vs 8,900 km for the C-5 Galaxy. The C-17 Globemaster III operates at altitudes up to 13,715 m compared to 10,600 m for the C-5 Galaxy.
The C-17 Globemaster III has been produced in 279 units vs 131 for the C-5 Galaxy. Unit cost is $340M for the C-17 Globemaster III vs $168M for the C-5 Galaxy. The C-5 Galaxy first flew 23 years before the C-17 Globemaster III (1968 vs 1991).
| American military transport aircraft, extensively deployed in global conflict zones since the 1990s for strategic airlift missions. | |
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| Origin country | 🇺🇸 United States |
| Category | Military Transport Aircraft |
| Manufacturer | McDonnell Douglas |
| First flight | 15 September 1991 |
| Year introduced | 1993 |
| Number produced | 279 units |
| Average unit price | $340 million |
| American strategic airlifter, predominantly used during late Cold War, Desert Storm, and Iraq War for massive cargo transportation. | |
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| Origin country | 🇺🇸 United States |
| Category | Military Transport Aircraft |
| Manufacturer | Lockheed |
| First flight | 30 June 1968 |
| Year introduced | 1971 |
| Number produced | 131 units |
| Average unit price | $168 million |
| Wing area | 353.0 m² ◉ |
| Wingspan | 51.8 m ◉ |
| Height | 16.8 m ◉ |
| Length | 53.0 m ◉ |
| Maximum speed | 930 km/h ◉ |
| Operational range | 4,480 km ◉ |
| Service ceiling | 13,715 m ◉ |
| Max. takeoff weight | 259,460 kg ◉ |
| Empty weight | 122,000 kg ◉ |
| Total thrust | 4 x 4,727 kgf ◉ |
| Wing area | 576.0 m² ◉ |
| Wingspan | 67.9 m ◉ |
| Height | 19.8 m ◉ |
| Length | 75.3 m ◉ |
| Maximum speed | 932 km/h ◉ |
| Operational range | 8,900 km ◉ |
| Service ceiling | 10,600 m ◉ |
| Max. takeoff weight | 381,017 kg ◉ |
| Empty weight | 172,365 kg ◉ |
| Total thrust | 4 x 4,919 kgf ◉ |
Performance Radar Chart
Detailed Comparison
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Frequently Asked Questions
Which is faster, the C-17 Globemaster III or C-5 Galaxy?
The C-5 Galaxy is faster with a maximum speed of 932 km/h compared to the C-17 Globemaster III's 930 km/h, a difference of 2 km/h.
Which has longer range, the C-17 Globemaster III or C-5 Galaxy?
The C-5 Galaxy has a longer range at 8,900 km compared to the C-17 Globemaster III's 4,480 km.
Which can fly higher, the C-17 Globemaster III or C-5 Galaxy?
The C-17 Globemaster III has a higher service ceiling at 13,715 meters (44,996 ft) compared to the C-5 Galaxy's 10,600 meters (34,776 ft).
Which is heavier, the C-17 Globemaster III or C-5 Galaxy?
The C-5 Galaxy has a higher maximum takeoff weight at 381,017 kg compared to the C-17 Globemaster III's 259,460 kg.
Which is larger, the C-17 Globemaster III or C-5 Galaxy?
The C-5 Galaxy is longer at 75.3 meters compared to the C-17 Globemaster III's 53.0 meters.
Which is more expensive, the C-17 Globemaster III or C-5 Galaxy?
The C-17 Globemaster III is more expensive at approximately $340 million per unit compared to the C-5 Galaxy at $168 million.
Which entered service first, the C-17 Globemaster III or C-5 Galaxy?
The C-5 Galaxy entered service first in 1971, 22 years before the C-17 Globemaster III which entered service in 1993.
Which has been built in greater numbers, the C-17 Globemaster III or C-5 Galaxy?
The C-17 Globemaster III has been produced in greater numbers with 279 units compared to 131 units of the C-5 Galaxy.