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Comparison of Boeing C-17 Globemaster III and Lockheed C-5 Galaxy


Direct side-by-side comparison of two aircraft.


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Your selected aircraft are compared in side-by-side arrangement below. You can always go back and Compare any two aircraft in our database.

Notes: Some entries contain '0', 'not available', or an 'NA' value. This is more common with conceptual, experimental, and x-plane designs. Rotary-wing system (i.e. helicopters) values include main rotor diameter as part of width/wingspan measurement. UAV entries may display crew values as '0', not taking into account ground-based controllers.

SUBJECTS
Boeing C-17 Globemaster III
Tactical / Strategic Military Transport Aircraft
Lockheed C-5B
Strategic Heavy-Lifter Transport Aircraft
BASICS
CREW
3
CREW
7
PRODUCTION
279 units [Diff.+148]
PRODUCTION
131 units [Diff.-148]
DIMENSIONS
LENGTH
173.88 ft (53.00 m) [Diff.-73.20 ft]
LENGTH
247.08 ft (75.31 m) [Diff.+73.20 ft]
WIDTH/SPAN
169.78 ft (51.75 m) [Diff.-52.95 ft]
WIDTH/SPAN
222.74 ft (67.89 m) [Diff.+52.95 ft]
HEIGHT
55.09 ft (16.79 m) [Diff.-10.04 ft]
HEIGHT
65.12 ft (19.85 m) [Diff.+10.04 ft]
SIZE COMPARISON
NOTES: Shapes below depict aircraft from wingtip-to-wingtip / nose-to-tail assuming aircraft are being viewed from overhead perspective (the nose pointing towards the top of the screen). Helicopter widths include main rotor diameter. If any dimensional values are "NA" in the database then the presented shapes may appear skewed.
Compare aircraft size graphic
Boeing C-17 Globemaster III
Compare aircraft size graphic
Lockheed C-5B
WEIGHTS
EMPTY WT
278,003 lb (126,100 kg) [Diff.-101,986 lb]
EMPTY WT
379,989 lb (172,360 kg) [Diff.+101,986 lb]
MTOW
585,001 lb (265,352 kg) [Diff.-254,960 lb]
MTOW
839,961 lb (381,000 kg) [Diff.+254,960 lb]
INSTALLED POWER
4 x Pratt & Whitney F117-PW-100 turbofan engines developing 40,440 lb of thrust each.
4 x General Electric TF39-GE-1C turbofans developing 43,000 lb of thrust each.
PERFORMANCE
SPEED
518 mph (833 kph) [Diff.-60 mph]
SPEED
578 mph (930 kph) [Diff.+60 mph]
RANGE
5,861 miles (9,432 km) [Diff.-601 miles]
RANGE
6,462 miles (10,400 km) [Diff.+601 miles]
CEILING
45,000 ft (13,716 m) [Diff.+10,223 feet]
CEILING
34,777 ft (10,600 m) [Diff.-10,223 feet]
ARMAMENT
None.
None.
GOING FURTHER
View Entry
(Boeing C-17 Globemaster III)
View Entry
(Lockheed C-5 Galaxy)

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