Handley Page Hendon

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Hendon
HPHendon.jpg
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[edit]

While the single-seat Handley Page Hanley had lost to the similar Blackburn Dart in fulfilling the requirements for a carrier-based torpedo bomber to equip Britain's Fleet Air Arm, it was recognised by both Handley Page and the Air Ministry that a two-seat aircraft would be more useful both for operational purposes and for experimental work. An order was therefore placed on 27 November 1923 for six two-seat derivatives of the Hanley III, designated the Type Ta (later known as the H.P.25) or Handley Page Hendon to meet the requirements of Air Ministry Specification 25/23 for an interim torpedo bomber.[1]

The first of the six aircraft to fly, (serial N9724) flew on 7 July 1924, with the remaining five flying by September. It had a longer fuselage to accommodate the observer, who was provided with a .303 in (7.7 mm) 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[edit]

The six Hendons were used for extensive trials to investigate various configurations of leading edge slots/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 made the Hendon obsolete.

Variants[edit]

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)[edit]

Data from Handley Page Aircraft since 1907 [4]

General characteristics

  • Crew: 2
  • Length: 34 ft 6 in (10.51 m)
  • Wingspan: 46 ft 0 in (14 m)
  • Height: 13 ft 8 in [5] (4.17 m)
  • Wing area: 562 ft² (52.2 m²)
  • Empty weight: 4,350 lb [6] (1,978 kg)
  • Loaded weight: 6,970 lb (3,160 kg)
  • Powerplant: 1 × Napier Lion IIB 12-cylinder water-cooled W engine, 450 hp (336 kW)

Performance

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

See also[edit]

Related development
Aircraft of comparable role, configuration and era

References[edit]

Notes[edit]

  1. ^ Barnes 1976, p.223, 225.
  2. ^ Barnes 1976, p.225.
  3. ^ Mason 1994, p.158.
  4. ^ Barnes 1976, p.229.
  5. ^ HANDLEY PAGE H.P.25 HENDON www.handleypage.com. Retrieved 13 June 2008.
  6. ^ Lewis 1980, p.420-421.

Bibliography[edit]

External links[edit]