Reference photo · Configuration may differ
Credit
U.S. Air Force · Public domain · Resized · Public domain · Source ↗ · Modified
FORCETALLY
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At a glance
Measured figures
C-17A · Length
Single source174 ft (53 m)[source]
C-5M · Length
Single sourceConfiguration
| Specification | Boeing C-17 Globemaster III | Lockheed C-5 Galaxy |
|---|---|---|
| Type | Strategic and tactical airlifter[source] | Strategic airlifter[source] |
| National origin | United States[source] | United States[source] |
| Manufacturer | McDonnell Douglas / Boeing[source] | Lockheed Corporation Lockheed Martin[source] |
| Status | In service[source] |
247 ft 1 in (75.31 m)[source]
C-17A · 2 pilots, 1 loadmaster
Single source3 (2 pilots, 1 loadmaster)[source]
C-5M · minimum (pilot, copilot, two flight engineers)
Single sourceC-5M · typical (aircraft commander, first pilot, 2 flight engineers, 3 loadmasters)
Single sourceC-5M · when augmented (aircraft commander, 2 first pilots, 2 flight engineers, 3 loadmasters)
Single source7 typical (aircraft commander, first pilot, 2 flight engineers, 3 loadmasters) 4 minimum (pilot, copilot, two flight engineers) 8 when augmented (aircraft commander, 2 first pilots, 2 flight engineers, 3 loadmasters)[source]
C-17A · with 157,000 lb (71,214 kg) payload
Single sourceFerry; C-17A · Ferry range
Single source2,420 nmi (2,780 mi, 4,480 km) with 157,000 lb (71,214 kg) payload[source]
6,230 nmi (7,170 mi, 11,540 km)[source]
C-5M · at maximum cargo capacity
Single sourceC-5M · with a 120,000 lb (54,431 kg) payload
Single sourceC-17A · 4 × Pratt & Whitney PW2000 turbofan engines thrust each (U.S. military designation: F117-PW-100)
Single source4 × Pratt & Whitney PW2000 turbofan engines, 40,440 lbf (179.9 kN) thrust each (U.S. military designation: F117-PW-100)[source]
C-5M · 4 × General Electric F138-100 turbofan engines thrust each
Single source4 × General Electric F138-100 turbofan engines, 51,000 lbf (230 kN) thrust each[source]
C-5M · 2,100 ft/min (
Single source2,100 ft/min (11 m/s)[source]
Bars compare reported quantities only. A larger figure does not make a system better; configurations and test conditions differ.
In service[source]
| Primary users | United States Air Force Indian Air Force Royal Air Force Royal Australian Air Force[source] | — |
|---|
| Number built | 279[source] | 131 C-5A: 81 C-5B: 50[source] |
|---|
| Manufactured | 1991–2015[source] | C-5A: 1968–1973 C-5B: 1985–1989[source] |
|---|
| Introduction date | 17 January 1995[source] | June 1970 ( 1970-06 )[source] |
|---|
| First flight | 15 September 1991[source] | 30 June 1968 ( 1968-06-30 )[source] |
|---|
| Developed from | McDonnell Douglas YC-15[source] | — |
|---|
| Capacity | 170,900 lb (77,519 kg) of cargo distributed at max over 18 463L master pallets or a mix of palletized cargo and vehicles 102 paratroopers or 134 troops with palletized and sidewall seats or 54 troops with sidewall seats (allows 13 cargo pallets) only or 36 litter and 54 ambulatory patients and medical attendants or Cargo, such as one M1 Abrams tank, two Bradley armored vehicles, or three Stryker armored vehicles[source] | 36 master pallets 463L or 281,000 lb (127,459 kg)[source] |
|---|
| Fuel capacity | 35,546 US gal (29,598 imp gal; 134,560 L)[source] | 341,446 lb (154,880 kg); 51,150 US gal (42,590 imp gal; 193,600 L)[source] |
|---|
| Aspect ratio | 7.165[source] | — |
|---|
| Airfoil | root: DLBA 142; tip: DLBA 147[source] | root: NACA 0012.41 mod ; tip: NACA 0011 mod[source] |
|---|
| Wing loading | 150 lb/sq ft (730 kg/m 2 )[source] | — |
|---|
| Thrust/weight | 0.277 (minimum)[source] | 0.26[source] |
|---|
| Takeoff run | at MTOW: 8,200 ft (2,499 m)[source] | — |
|---|
| Landing distance | 3,500 ft (1,067 m)[source] | — |
|---|
| Primary user | — | United States Air Force[source] |
|---|
| Take-off run | — | 5,400 ft (1,600 m)[source] |
|---|
| Landing run | — | 3,600 ft (1,100 m)[source] |
|---|
Ferry; C-5M · with no cargo
Single source