|First flight||18 Dec 1915 or Jan 1916 |
|Introduction||Nov 1916 |
|Primary user||U.K. (RFC/RAF)|
|Wingspan||30.5 m (100 ft) |
|Engine||2×250hp Rolls-Royce Eagles|
|Armament||flexible nose Lewis and|
flexible rear Lewis above and below[note 1]
710 kg (1,568 lb) of bombs
|Max Speed||153 km/h (95 mph)|
|Climb||300 m (1,000 ft) in 2:10|
|Ceiling||2,100 m (7,000 ft) |
Development of the Handley-Page O/100 was slowed only because Britain had never built such a large aeroplane before, and every part of the plane had to be thoroughly tested before the whole could be tested in December 1915. While it was originally envisioned to be powered by two 150hp Sunbeam engines, by late 1915 the excellent Rolls-Royce Eagle was available. Each 250hp engine was mounted in a nacelle with its own fuel tank. The long wings were made to fold, and wires from upper king-posts supported the wide upper wing extensions. A box tail was an early innovation, providing better control in case of single engine failure as well as widening the rear arc of fire. They trickled into bombing units in France starting in November 1916, including the third example which was accidentally landed at a German airfield on its maiden cross-Channel flight.
Though their numbers were never large, they could deliver the same bomb load as more than three Short Bombers or six Airco D.H.4s, so they were quite effective even in ones and twos. By autumn of 1917 they were flying in larger groups, eventually supplemented by the O/400. 
For more information, see Wikipedia:Handley-Page Type O.
Miniatures and Models
- Metal+Resin kit: Red Eagle
- The latter fired downward from a trap door in the rear fuselage.
- Lamberton, p.64.
- Bruce'69, p.268.
- Lamberton, pp.214-215.