Handley Page Hendon

Hendon
Role	Torpedo bomber
National origin	United Kingdom
Manufacturer	Handley Page
First flight	1924
Retired	1927
Status	Prototypes
Number built	6
Developed from	Handley Page Hanley

The Handley Page Hendon was a British torpedo bomber of the 1920s. A two-seat development of Handley Page's earlier single-seat Hanley, the Hendon was a single-engine biplane. While six aircraft were purchased by the British Air Ministry for evaluation and trials purposes, no further production ensued and the Hendon did not enter squadron service.

Development and design

While the single-seat Handley Page Hanley had lost to the similar

Air Ministry Specification 25/23 for an interim torpedo bomber.^[1]

The first of the six aircraft to fly, (

Lewis Gun on a Scarff ring mounting, but initially, was similar to the Hanley III. Tests showed that it was tailheavy when carrying a torpedo, the outer wings being swept back by six degrees to avoid this.^[2]

Operational history

The six Hendons were used for extensive trials to investigate various configurations of

slats. These allowed one aircraft to successfully land on HMS Furious while carrying a torpedo and without using arrestor gear.^[3]

No further production occurred, the development of automatic slots in October 1927 making the Hendon obsolete.

Variants

Hendon I: Initial configuration. Leading edge slots as Hanley III. Six built.
Hendon II: Improved slot gear. Three converted.
Hendon III: Slotted Flaps. One converted from Hendon II.

Specifications (Hendon)

Data from Handley Page Aircraft since 1907.[4]

General characteristics

Crew: 2
Length: 36 ft 6 in (11.13 m)
Wingspan: 46 ft 0 in (14.02 m)
Height: 13 ft 8 in (4.17 m) ^{[citation needed]}
Wing area: 562 sq ft (52.2 m²)
Empty weight: 4,350 lb (1,973 kg) ^[5]
Gross weight: 6,970 lb (3,162 kg)
Powerplant: 2 ×
Napier Lion IIB
W-12 water-cooled piston engine, 450 hp (340 kW) each
Propellers: 2-bladed fixed-pitch propeller

Performance

Maximum speed: 110 mph (180 km/h, 96 kn)
Stall speed: 55 mph (89 km/h, 48 kn)
Service ceiling: 9,500 ft (2,900 m)
Wing loading: 12.4 lb/sq ft (61 kg/m²)
Power/mass: 0.065 hp/lb (0.107 kW/kg)

Armament

Guns: 1 × .303 in (7.7 mm) forward firing Vickers machine gun and 1 × .303 in (7.7 mm) Lewis gun in rear cockpit
Bombs: 1 × 18 in (457 mm) torpedo or 2 × 230 lb (105 kg) bombs