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Boeing 747-8F vs. Lockheed C-5 Galaxy

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747-8F

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C-5

First Flight
20101968
Length
76 m250 ft
75 m247 ft
Wingspan
68 m224 ft
67 m222 ft
Wing Area
554 m²5,963 ft²
580 m²6,243 ft²
Fuselage Width
6 m21 ft
5 m18 ft
Height
19 m63 ft
19 m65 ft
Cargo Capacity
134 t295,000 lbs
127 t281,000 lbs
Max Takeoff Weight
449 t990,000 lbs
381 t840,000 lbs
Number of Engines
44
Engine Manufacturer & Model
General Electric GEnxGeneral Electric CF36 (F138)
Max Thrust Per Engine
296 kN66,500 lbf
230 kN51,000 lbf
Max Total Thrust
1,184 kN266,000 lbf
920 kN204,000 lbf
Fuel Capacity
238,600 l63,038 gal
193,600 l51,149 gal
Range
7,630 km4,120 nm
4,260 km2,300 nm
Cruise Speed
908 km/h564 mph
830 km/h516 mph

What Are the Differences Between the Boeing 747-8F and Lockheed C-5 Galaxy

Boeing 747-8F vs Lockheed C-5 Galaxy Size Comparison

  • With a length of 76.30 meters, the Boeing 747-8F is 1 meters longer than the Lockheed C-5 Galaxy.
  • The Boeing 747-8F and Lockheed C-5 Galaxy have heights of 19.40 meters and 19.80 meters respectively - making the Lockheed C-5 Galaxy 0.40 meters taller.

Boeing 747-8F vs Lockheed C-5 Galaxy Cargo Capacity

  • The Boeing 747-8F can carry about 134 tons of cargo, while the Lockheed C-5 Galaxy can hold about 127 tons . Head to head, the Boeing 747-8F has approximately 7 tons more of cargo capacity.

About the Boeing 747-8F

The Boeing 747-8F, also known as the 747-8 Freighter, is an all-cargo variant of the Boeing 747-8 family. It stands as a significant advancement in Boeing's freighter aircraft lineup, distinguished by its increased capacity and enhanced efficiency. The aircraft is distinguishable by its large nose door, facilitating flexible loading of outsized cargo​​.

Production History: Boeing announced the 747-8 series, including the 747-8F, on November 14, 2005, marking it as the first stretched 747 to go into production. The aircraft was intended to incorporate engine and cockpit technology from the Boeing 787 Dreamliner, including the General Electric GEnx turbofan. Production of the first 747-8 Freighter began in early August 2008, with the first model entering service with Cargolux in October 2011. The program faced delays due to engineering resource limitations and design changes, but it continued to attract orders from various customers​​.

Design Features: The 747-8F's airframe integrates advanced materials, such as carbon composites, advanced aluminium alloys, and titanium, enhancing durability and resistance to corrosion. It features a redesigned wing with double and single-slotted flaps, fly-by-wire spoilers, and outboard ailerons, capped with raked wingtips that reduce aerodynamic drag. The aircraft has a length of 76.3 meters, a wingspan of 68.4 meters, and a height of 19.4 meters. Its maximum take-off weight is 447 tonnes, and it can carry a maximum revenue payload of 137 tonnes. The -8F is powered by modern General Electric GEnx turbofan engines.

Operational History: Since its introduction, the 747-8F has accumulated over 500,000 flight hours and 88,000 flight cycles. Major operators include AirBridgeCargo Airlines, Atlas Air, Cargolux Airlines, Cathay Pacific Airways, Korean Air, and Nippon Cargo Airlines. The aircraft has been used extensively for global cargo operations, demonstrating its capabilities in transporting a wide range of goods, including outsized cargo, thanks to its unique nose door​.

Similar Freighter Models: The Boeing 747-8F is most comparable to the Antonov An-70, although it occupies a distinctive niche in the market. Its combination of payload capacity, range, and efficiency positions it uniquely among large freighter aircraft​. A few other variations of the 747 have been used for cargo operations, including the 747-400F, 747-400ERF, 747-400BCF. There is also the Boeing 747-400LCF (Large Cargo Freighter), more commonly known as the "Dreamlifter". The Dreamlifter has an extensively modified fuselage, which was expanded to transport parts for the Boeing 787 Dreamliner.

About the Lockheed C-5 Galaxy

The Lockheed C-5 Galaxy is a large military transport aircraft developed by the Lockheed Corporation, now Lockheed Martin. The C-5 distinguishes itself by its sheer size and payload capacity, designed to transport a wide range of military equipment, including oversized vehicles and machinery.

Production History: Development of the Lockheed C-5 Galaxy began in the 1960s to replace the Douglas C-133 Cargomaster and to complement the Lockheed C-141 Starlifters. The United States Army desired a transport aircraft that could carry a wide array of outsized equipment. After a rigorous selection process, Lockheed's design, characterized by a T-tail and a unique cockpit position above the cargo area, was chosen in 1965. The first C-5A Galaxy was rolled out in 1968. The program, however, faced several challenges, including technical problems, weight issues, and cost overruns, leading to congressional investigations. Despite these hurdles, the C-5 Galaxy emerged as a key asset in strategic airlift capabilities​​​​.

Design Features: The C-5 Galaxy stands out with its four General Electric TF39-GE-1C turbofan engines, providing a significant thrust and efficiency. Its design includes a high-set wing with a 25-degree sweep and a distinctive T-tail. The aircraft is equipped with forward and rear cargo loading assemblies and a visor-type upward-hinged nose. The upper deck can accommodate a crew of six, a relief crew, and passengers, with provisions like bunk rooms, galleys, and lavatories. The cargo compartment is vast, capable of carrying a range of military hardware, including tanks, helicopters, and large numbers of troops. The landing gear system is unique, featuring a "kneeling" capability to facilitate cargo loading. The C-5 also has inflight refueling capabilities, extending its operational range significantly​​.

Operational History: Since its introduction, the C-5 Galaxy has been a critical component of U.S. military logistics, capable of transporting heavy and outsized military equipment globally. It played a vital role in operations such as Desert Shield and Desert Storm, where despite being only 12% of the airlift fleet, it carried 44% of the cargo. The Galaxy's capacity for strategic airlift has proven invaluable in numerous military and humanitarian operations, making it a cornerstone of the U.S. Air Force's airlift capability.

Similar Freighter Models: The Lockheed C-5 Galaxy is often mentioned alongside the Russian Antonov An-124. The C-5 was the largest aircraft in the world until the introduction of the An-124 in 1982. Compared to other US military aircraft, the C-5 Galaxy is significantly bigger than the C-17 Globemaster III, C-130 Hercules, and C-141 Starlifter.

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Values shown may not be 100% accurate, as some metrics are averages or only represent certain production years and configurations. Engine specs are based on the best options available.

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