Boeing 747 Specs

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Boeing 747 Specs

The design and building of the Boeing 747 was an audacious leap forward in aviation. The demand to relieve congestion at airports struggling with the influx of a growing travelling public, was to be solved by offering fewer aircraft with higher carrying capacity. An aircraft with a carrying capacity double that of the existing work hosrses, the Boeing 707 and Douglas DC8, was required.

Strangely enough, it wasn’t the extra carrying capacity that attracted early customers of the aircraft, but longer range compared to other aircraft of the day.

The ability to consider designing such a large aircraft was made possible by the introduction of the High By-pass Turbo Fan engines that were able to deliver much higher thrust at a much reduced fuel burn rate compared to pure jets in use at the time.

Boeing_747_family

The Boeing 747 family of aircraft.

The four engined Boeing 747 was designed to be the safest airliner so far built. Redundancy was in place for systems such as hydraulics, where a back up was available should the main system fail. There were dual control surfaces to enable the continued control of the aircraft should any of the surfaces fail. There were four main landing gear bogies each with four wheels. This was not only to spread the weight of the aircraft more evenly, but the 747 was capable of landing on two opposing bogies if necessary.

Everything about the 747 compared to other aircraft in use at the time of its initial launch, was on a grand scale. For instance; 147,000 pounds (66,150 kg) of high-strength aluminium is used in its construction, 171 miles (274 km) of wiring along with 5 miles (8 km) of tubing is used, six million parts are used, half of which are fastners.

Boeing 747 Specifications Table

Boeing 747 100Boeing_747_100
Boeing 747 SPBoeing_747_SP
Boeing 747 200Boeing_747_200
Boeing 747 300Boeing_747_300
Boeing 747 400Boeing_747_400
Range 6,100 Statute Miles
9,800 Km
7,650 Statute Miles
12,320 Km
7,900 Statute Miles
12,700 Km
7,700 Statute Miles
12,400 Km
8,354 Statute Miles
13,450 Km
Seating 3 Class 366
2 Class 452
2 Class 331 3 Class 366
2 Class 452
3 Class 412
2 Class 496
3 Class 416
2 Class 524
Length 231 Ft 10 In
70.6 Mtrs
184 Ft 9 In
56.31 Mtrs
231 Ft 10 In
70.6 Mtrs
231 Ft 10 In
70.6 Mtrs
231 Ft 10 In
70.6 Mtrs
Wing span 195 Ft 8 in
59.6 Mtrs
195 Ft 8 in
59.6 Mtrs
195 Ft 8 in
59.6 Mtrs
195 Ft 8 in
59.6 Mtrs
211 Ft 5 in
64.4 Mtrs
Tail Height 63 Ft 5 in
19.3 Mtrs
65 Ft 10 in
20.06 Mtrs
63 Ft 5 in
19.3 Mtrs
63 Ft 5 in
19.3 Mtrs
63 Ft 8 in
19.4 Mtrs
Cabin width (Interior) 20 Ft
6.1 Mtrs
20 Ft
6.1 Mtrs
20 Ft
6.1 Mtrs
20 Ft
6.1 Mtrs
20 Ft
6.1 Mtrs
Freight (underfloor) LD-1 6,190 Cu Ft
173.3 Cu Mtrs
30 x LD-1s
TBA 6,190 Cu Ft
173.3 Cu Mtrs
30 x LD-1s
6,190 Cu Ft
173.3 Cu Mtrs
30 x LD-1s
6,025 Cu Ft
170.5 Cu Mtrs
30 x LD-1s
Typical Cruise Speed at 35,000′ Mach 0.84 555 MPH / 895 KPH Mach 0.88 614 MPH / 990 KPH Mach 0.84 555 MPH / 895 KPH Mach 0.85 565 MPH / 910 KPH Mach 0.85 565 MPH / 910 KPH
Maximum Take off Weight 735,000 lbs
333,400 Kg
670,000 lbs
304,000 Kg
833,000 lbs
374,850 Kg
833,000 lbs
374,850 Kg
875,000 lbs
396,890 Kg
Maximum Fuel Capacity 48,445 US Gal.
183,380 Litres
47,210 US Gal.
178,000 Litres
52,410 US Gal.
199,158 Litres
52,410 US Gal.
199,158 Litres
57,285 US Gal.
216,840 Litres
Engines and Thrust Pratt & Whitney JT9D-7A
Thrust 46,500 lb (20,925 kg)
Rolls-Royce RB211-524B2
Thrust 50,100 lb (22,545 kg)
GE CF6-45A2
Thrust 46,500 lb (20,925 kg)
Pratt & Whitney JT9D-7R4W
Thrust 46,500 lb (206.8 kN)
Rolls-Royce RB211-524C2
Thrust 46,500 lb (206.8 kN)
Pratt & Whitney JT9D-7R4G2
Thrust 54,750 lb (24,635 kg)
Rolls-Royce RB211-524D4
Thrust 53,000 lb (23,850 kg)
GE CF6-50E2
Thrust 52,500 lb (23,625 kg)
Pratt & Whitney JT9D-7R4G2
Thrust 54,750 lb (24,635 kg)
Rolls-Royce RB211-524D4
Thrust 53,000 lb (23,850 kg)
GE CF6-80C2B1
Thrust 55,640 lb (25,040 kg)
Pratt & WhitneyPW4062
Thrust 63,300 lb (281.57 kN)
Rolls-Royce RB211-524H2-T
Thrust 59,500 lb (264.67 kN)
GE CF6-80C2B5F
Thrust 62,100 lb (276.23 kN)
Air_New_Zealand_Boeing_747_400

An Air New Zealand Boeing 747 400 takes off from Christchurch, New Zealand.

QANTAS was one of the airlines that ordered the 747 SP. Due to its many long routes QANTAS benefited from the long range capabilities of the 747 SP without excess seat capacity. In January 1981 the SP was brought to Wellington New Zealand for a promotional and testing flight. Wellingtons' runway is notoriously short and with water at both ends and fluky winds is a challenge at the best of times. The 747SP was the only 747 to ever have had scheduled services into Wellington.

QANTAS was one of the airlines that ordered the 747 SP. Due to its many long routes QANTAS benefited from the long range capabilities of the 747 SP without excess seat capacity. In January 1981 the SP was brought to Wellington New Zealand for a promotional and testing flight. Wellingtons’ runway is notoriously short and with water at both ends and fluky winds is a challenge at the best of times. The 747SP was the only 747 to ever have had scheduled services into Wellington.

QANTAS 747 SP WLG visit 2-resize

The arrival of the QANTAS 747 SP was quite an event. The hills surrounding the airfield were lined with spectators waiting for this giant of the skies to descend out of the cloud. It was a sight to behold at this little capital city airport. The only other 747 that had landed here was a Pan Am 747 100 which had to divert from Auckland and couldn’t make it to Christchurch. To get it off the ground again, they had to remove the seats and send them to Auckland on the train.

If there is more you want to learn about this airliner, please visit: Boeing 747 Home, Boeing 747 HistoryBoeing 747 Order Book,  Boeing 747 Interior and Boeing 747 Assembly,

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