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Handley Page Type O


Twin-Engine Heavy Bomber Biplane Aircraft [ 1918 ]



For a time, the HP O/400 was the largest aircraft ever produced for the United Kingdom.



Authored By: Staff Writer | Last Edited: 01/30/2019 | Content ©www.MilitaryFactory.com | The following text is exclusive to this site.

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The O/400 model series by Handley Page aircraft firm was the principle heavy bomber of the RAF by the end of the First World War. The O/400 was directly descended from the previous O/100 model series with the "100" and "400" designations assigned to each model depicting the horsepower output of the engines. Similarities aside, the O/400 not only fitted new engines to the bomber design but the system also had a newly designed bombsight that improved - if ever so slightly - the capabilities of aircraft and crew alike. The heavy bomber would be used in quantity with British forces to which more than 500 examples would be produced along with limited quantities of the type as supplied to by American forces.

The O/400 was a rudimentary design common with World War One standards, though built to an immensely large size - a 100 foot wingspan with a length of nearly 63 feet. The aircraft was crewed by a compliment of three personnel and fitted with two landing gear systems mounting two wheels a piece. The engines set the system apart from the previous O/100 design by mounting the 360hp Rolls-Royce brand Eagle VIII V-12 engines on either side of the fuselage. Wing design was of the typical heavy bomber biplane type, with struts spanning the structures. The aircraft featured a three-rudder, twin-elevator system at rear.

Armament of the mammoth Handley Page O/400 consisted of three Lewis-type machine gun systems mounted at various defensive positions about the fuselage. Ordnance capabilities were impressive with the ability to field up to 16 x 112lb bombs or up to 8 x 250lb bombs. Bombing was accomplished through a LT Commander Wimperis-designed Drift Sight Mk 1A bombsight. This system had the capability to process aerial information for the bomber to utilize in the form of drift, the aircraft's current airspeed and altitude for improved bombing capabilities over its predecessor. In all, the system was fielded in force to the end of the war, seeing full action with no fewer than eleven operational RAF squadrons throughout the English Empire.
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Specifications



Service Year
1918

Origin
United Kingdom national flag graphic
United Kingdom

Status
RETIRED
Not in Service.
Crew
3

Production
657
UNITS


Handley Page - UK
(View other Aviaton-Related Manufacturers)
National flag of Australia National flag of China National flag of the United Kingdom National flag of the United States Australia; China; United Kingdom; United States
(OPERATORS list includes past, present, and future operators when applicable)
✓ Ground Attack (Bombing, Strafing)
Ability to conduct aerial bombing of ground targets by way of (but not limited to) guns, bombs, missiles, rockets, and the like.


Length
62.9 ft
(19.16 m)
Width/Span
100.0 ft
(30.48 m)
Height
22.0 ft
(6.70 m)
Empty Wgt
8,501 lb
(3,856 kg)
MTOW
13,360 lb
(6,060 kg)
Wgt Diff
+4,859 lb
(+2,204 kg)
(Showcased structural values pertain to the Handley Page HP O/400 production variant)
Installed: 2 x Rolls-Royce Eagle VIII V-12 engines developing 360 horsepower each.
Max Speed
98 mph
(157 kph | 85 kts)
Ceiling
8,497 ft
(2,590 m | 2 mi)
Range
450 mi
(724 km | 1,341 nm)
Rate-of-Climb
217 ft/min
(66 m/min)


♦ MACH Regime (Sonic)
Sub
Trans
Super
Hyper
HiHyper
ReEntry
♦
RANGES (MPH) Subsonic: <614mph | Transonic: 614-921 | Supersonic: 921-3836 | Hypersonic: 3836-7673 | Hi-Hypersonic: 7673-19180 | Reentry: >19030


(Showcased performance specifications pertain to the Handley Page HP O/400 production variant. Compare this aircraft entry against any other in our database or View aircraft by powerplant type)
STANDARD:
5 x 7.7mm Lewis machine guns in nose (2x), dorsal (2x) and ventral (1x) positions.

OPTIONAL:
8 x 250lb bombs OR 16 x 112lb bombs. Up to 2,000lb of total externally-held ordnance.


Supported Types


Graphical image of an aircraft medium machine gun
Graphical image of an aircraft conventional drop bomb munition


(Not all ordnance types may be represented in the showcase above)
Hardpoint Mountings: 8


O/100 - Initial Bomber Model on which the development of the 0/400 stemmed from.
O/400 - Base Series Designation


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