Бомбардировщик Type O/400 выделялся своими размерами. Он мог поднять одну 748-кг бомбу, либо три бомбы по 249 или 236 кг, либо восемь бомб по 113-кг, либо 16 бомб по 51 кг на внутренней подвеске, а также две бомбы на внешней подвеске.
D8345 landing, location unknown

Самолёты на фотографии: Aircrafts on the photo: Handley Page H.P.12 (O/400) - ВеликобританияUnited Kingdom - 1917

C9704 at Cricklewood showing folding wings. It later was exported to China.
This O/400, C9704 was probably accepted late in July 1918. With wings folded, the overall width of the O/400 was reduced to 31ft; the full extended span was 100ft. Just ahead of the lower centre section can be seen the crew entry hatch: it bears the cautionary notice “Keep clear of the propellers".

Самолёты на фотографии: Aircrafts on the photo: Handley Page H.P.12 (O/400) - ВеликобританияUnited Kingdom - 1917

Handley Page O/400 B8811, A-2 of Ho. 207 Squadron, over Germany in May 1919.
This shot of Handley Page O/400 B8811 shows the cockpit area projecting out in front of the wings and propellers.

Самолёты на фотографии: Aircrafts on the photo: Handley Page H.P.12 (O/400) - ВеликобританияUnited Kingdom - 1917

An O/400 of No. 207 is towed out at Ligescourt by a Clayton tractor

Самолёты на фотографии: Aircrafts on the photo: Handley Page H.P.12 (O/400) - ВеликобританияUnited Kingdom - 1917

D9702, seen at Portholme Meadow, was named "Clayton"

Самолёты на фотографии: Aircrafts on the photo: Handley Page H.P.12 (O/400) - ВеликобританияUnited Kingdom - 1917

C3498 visiting No. 32 TDS, Montrose, with a gaily-painted Bristol M.1C C5014 for scale

Самолёты на фотографии: Aircrafts on the photo: Bristol M.1A / M.1B / M.1C - ВеликобританияUnited Kingdom - 1916Handley Page H.P.12 (O/400) - ВеликобританияUnited Kingdom - 1917

An O/400 of No. 97 Squadron at Netheravon

Самолёты на фотографии: Aircrafts on the photo: Handley Page H.P.12 (O/400) - ВеликобританияUnited Kingdom - 1917

An O/400 with Sunbeam Maori engines at Ternhill

Самолёты на фотографии: Aircrafts on the photo: Handley Page H.P.12 (O/400) - ВеликобританияUnited Kingdom - 1917

Standard-built O/400 62448 with 14th Bombardment Squadron badge and 4,000-lb bomb

Самолёты на фотографии: Aircrafts on the photo: Handley Page H.P.12 (O/400) - ВеликобританияUnited Kingdom - 1917

C9700 at Serny en route to Egypt. It eventually flew on to India where it was wrecked in a gale in 1919

Самолёты на фотографии: Aircrafts on the photo: Handley Page H.P.12 (O/400) - ВеликобританияUnited Kingdom - 1917

C9715 at Hendon before delivery
This O/400, C9715, was one of the first production batch ordered from Handley Page Ltd under Contract No A.S. 27644. It was probably delivered early in August 1918, but it seems to have gone to France.

Самолёты на фотографии: Aircrafts on the photo: Handley Page H.P.12 (O/400) - ВеликобританияUnited Kingdom - 1917

A 216 Sqn O/400 at Amman, July 1921

Самолёты на фотографии: Aircrafts on the photo: Handley Page H.P.12 (O/400) - ВеликобританияUnited Kingdom - 1917

Самолёты на фотографии: Aircrafts on the photo: Handley Page H.P.12 (O/400) - ВеликобританияUnited Kingdom - 1917

Самолёты на фотографии: Aircrafts on the photo: Handley Page H.P.12 (O/400) - ВеликобританияUnited Kingdom - 1917

A formation of Fairey IIIFs of No.202 Squadron pose for the camera.

Самолёты на фотографии: Aircrafts on the photo: Fairey Fairey IIIF - ВеликобританияUnited Kingdom - 1926

D4631 was flown by Handley Page Transport Ltd after conversion to O/10 G-EATH

Самолёты на фотографии: Aircrafts on the photo: Handley Page O/7 / O/10 / O/11 - ВеликобританияUnited Kingdom - 1919