Vickers Valetta#Preserved aircraft

The origins of the Valetta are closely associated with the aircraft from which it was derived from, the Vickers VC.1 Viking, a civil-orientated airliner which had in turn been derived from the Second World War-era Vickers Wellington medium bomber.Andrews 1969, pp. 396, 408. During the latter stages of the Viking's development, it underwent extensive evaluations by the Royal Air Force (RAF). Several officials took an interest in seeing the type procured as a dedicated military transport variant with which to equip RAF Transport Command, using the aircraft as a quick replacement for numerous worn-out transport aircraft that had served in the Second World War.

It was on the basis of this interest that the Air Ministry decided to formalise the requirement, issuing Specification C.9/46 with Vicker's design specifically in mind. The aviation author C. F. Andrews observed that the specification was relatively forward-looking for the era, particularly as it required the aircraft to be rapidly convertible for performing various roles, including as a troop carrier, air ambulance, freighter, glider tug, and for air-dropping both paratroopers and supplies.Andrews 1969, p. 408.

The first prototype Valetta, which had originally been built as a standard Viking (c/n 158), was completed during the first half of 1947. On 30 June 1947, this prototype performed the type's maiden flight from Brooklands, piloted by Vicker's test pilot Mutt Summers.Andrews 1969, p. 411.Thetford 1957, pp. 446–447.

Although the Valetta was named after the Maltese capital Valletta, the aircraft's name is spelt with only a single "l". The Viking and Valetta provided the basis of the Varsity. The Varsity, although similar, was slightly larger and had a tricycle undercarriage arrangement and was equipped with a distinctive under-fuselage pannier for accommodating a bomb-aimer and up to 24 practice bombs.Andrews 1969, p. 413.

The Vickers Valetta was a twin-engine military transport aircraft. The fundamental differences between the Valetta and its Viking predecessor consisted of the fitting of more powerful engines, the installation of a strengthened cabin floor and the presence of a sizable pair of reinforced double-doors on the side of the fuselage for loading and unloading cargoes.Donald, David, ed. The Encyclopedia of World Aircraft. London: Aerospace Publishing, 1997. {{ISBN|1-85605-375-X}}. The use of more powerful engines was largely necessitated by the aircraft's roughly 2,000 lb increase in all-up weight over that of the Viking. The engines fitted to the Valetta were a pair of Bristol Hercules 230 radial engines, each capable of providing up to 2,000 hp.

To best accommodate its use as a transport aircraft, Valetta was designed to accommodate various-sized military cargoes, even relatively bulky ones; thus the interior floor was designed to support as much as 1,500 lb being exerted upon any single focused point of contact; this floor was lined with anchoring points from which to secure cargoes to. Furthermore, many of the interior furnishings were designed to be quickly-removable, enabling the aircraft to quickly be converted between roles; these furnishings included multiple styles of seating, a loading winch, vehicle ramps, floor rollers, glider-towing apparatus, additional fuel tanks, and side-wall soundproofing measures.Andrews 1969, p. 408-410. As a troop transport, up to 34 fully-equipped soldiers could be carried by a single Valetta, while up to 20 stretcher-bound personnel, along with two medical attendants, could be transported in the air ambulance layout; the paratroop configuration accommodated as maximum of 20 paratroopers along with nine 350 lb air-droppable supply containers.Andrews 1969, p. 410.

Several external provisions for handling various payloads were present, such as the carriable of supply containers upon twin racks installed under the centre fuselage. To enable gliders to be towed, the rear fuselage featured a pyramid-shaped structure that was used for the anchoring point and release mechanism alike. For extended range operations, optional flexible bag-like tanks could be installed. To accommodate higher weight payloads that had been anticipated in the Viking's operations and to better withstand rougher landings, the undercarriage was reinforced considerably.Andrews 1969, pp. 410-411.

During 1948, the Valetta C.1 entered service with the RAF. Its arrival in quantity led to the rapid replacement of the wartime Douglas Dakotas within RAF Transport Command, including the numerous transport squadrons stationed across the Middle East and Far East. The Valetta was used over active conflict zones, such as to perform numerous parachute drops over Egypt during the 1956 Suez Crisis.Paul, James Paul and Martin Spirit. [http://britains-smallwars.com/suez/Drop.html "The Last Drop 3 Para at El Gamil airfield."] {{webarchive|url=https://web.archive.org/web/20070425043354/http://www.britains-smallwars.com/suez/Drop.html |date=25 April 2007 }} Britain's Small Wars, 2008. Retrieved: 10 April 2007. The type was frequently in its transport capacity to support a number of other British military operations throughout the 1950s and 1960s, including during the Malayan Emergency,Paul, James Paul and Martin Spirit. [http://britains-smallwars.com/malaya/raf.html "RAF in Malaya."] {{webarchive|url=https://web.archive.org/web/20070425162701/http://www.britains-smallwars.com/malaya/raf.html |date=25 April 2007 }} Britain's Small Wars, 2008. Retrieved: 10 April 2007. and Aden.Paul, James Paul and Martin Spirit. [http://britains-smallwars.com/Aden/raf.html "The RAF in Aden and the Radafan."] {{webarchive|url=https://web.archive.org/web/20070427162632/http://www.britains-smallwars.com/Aden/raf.html |date=27 April 2007 }} Britain's Small Wars, 2008. Retrieved: 10 April 2007.

File:Vickers 664 Valetta T.3 WG266 RAFC BLA 09.56.jpg at Blackbushe airport in September 1956. Note the cabin-top astrodomes and aerials for navigational training]] File:Vickers Valetta T.4 WJ485 2 ANS MStG 14.09.63 edited-3.jpg

While the vast majority of Valettas were of the C.1 standard, there were several specialised variants inducted as well. The Valetta C.2 was a dedicated VIP passenger transport, its performance was largely similar save for its extended range capabilities.Thetford 1957 (rev 1988), p. 566.

The Valetta T.3 was built to provide a navigational trainer for service with the RAF College at RAF Cranwell and with No.1 and No.2 Air Navigation Schools. They could be visually distinguished from prior variants by the presence of numerous astrodomes across the top of its fuselage. 40 aircraft were delivered from August 1951, with the last being WJ487 in September 1952. A total of 18 Valetta T.3s were subsequently converted to the T.4 standard, which featured an enlarged nose that accommodate a radar unit, enabling the model to be used for the training of personnel in the aircraft interception (AI) role.Martin 1975, pp. 35–37.

Several individual Valettas were modified under various experimental programmes performed by Vickers. Various alternative undercarriages were trialled, although these reportedly displayed little change in ground handling performance when compared against the standard configuration.

• Valetta C.1 - transport, 211 built
• Valetta C.2 - VIP transport, 11 built
• Valetta T.3 - aircrew trainer, 40 built.
• Valetta T.4 - converted from T.3 with radar fitted in nose.Taylor, Michael J.H. Jane's Encyclopedia of Aviation. London: Studio Editions, 1989. {{ISBN|0-517-10316-8}}.Andrews 1969, p. 412.

; {{UK}}

• On 18 February 1951, an RAF Valetta made a forced belly landing near Stockholm-Bromma Airport following the failure of one engine and radio problems. Airframe icing compounded the situation. Of the 22 passengers and crew, one person was killed. The aircraft was totally destroyed.{{Citation needed|date=January 2021}}
• On 15 January 1953, Valetta C.1 VX562 collided in mid-air over the Mediterranean Sea with a RAF Lancaster, all 19 on the Valetta and seven Lancaster crew were killed.[http://aviation-safety.net/database/record.php?id=19530115-1 "Accident Description: Valetta C1."] aviation-safety.net.
• On 11 November 1953, VX490 disappeared while on air test after departing RAF Changi. All 7 on board died. It is thought the plane broke up in a thunderstorm.{{Citation needed|date=January 2021}}
• On 6 January 1954, Valetta T.3 WJ474 crashed near Aldbury, Hertfordshire on takeoff in bad weather from RAF Bovingdon. The aircraft was carrying a rugby team, and 17 on board were killed, with one survivor.[http://aviation-safety.net/database/record.php?id=19540106-1 "Accident Description: Valetta T3."] aviation-safety.net.[http://www.flightglobal.com/pdfarchive/view/1954/1954%20-%200169.html Service Aviation] Flight 15 January 1954
• On 21 February 1954, Valetta C.1 WJ494 Inbound from Hong Kong, crashed {{convert|2.4|km|mi|abbr=on}} from Singapore's Changi RAF base during a single engine approach. It was alleged that the pilot feathered the wrong faulty engine whilst approaching the runway. The aircraft lost height and hit trees, bursting into flames; of the twelve occupants, three lost their lives.[http://aviation-safety.net/database/record.php?id=19540221-0 "ASN Aircraft accident Vickers Valetta C.1 WJ494 Singapore-Changi RAF Station"] aviation-safety.net.
• On 17 April 1957, Valetta C.1 VW832 crashed at Queria, Jordan, five minutes after taking off from King Hussein International Airport, when the left wing separated after encountering turbulence. All 26 people on board were killed.[http://aviation-safety.net/database/record.php?id=19570417-1 "ASN Aircraft accident Vickers Valetta C.1 VW832 Queria"] aviation-safety.net.
• On 22 August 1957, RAF Valetta VX491 'Y' crashed in the jungle near Tanjong Malim, Malaya. Three RAF crewmen were killed, four 55 Coy RASC AD servicemen survived and were rescued Possible cause - engine failure.{{Citation needed|date=January 2021}}

File:Flixton Air Museum - geograph.org.uk - 371807.jpg

• VX573 – Valetta C.2 in storage at the Royal Air Force Museum Cosford in Cosford, Shropshire.{{cite web |title=Vickers Viking/Valetta/Varsity |url=http://www.oldprops.ukhome.net/Viking%20Photographs.htm |website=Oldprops |access-date=6 June 2017}}{{better source needed|date=June 2017}}
• VX580 – Valetta C.2 on static display at the Norfolk and Suffolk Aviation Museum in Flixton, Suffolk.{{cite web|title=OUR AIRCRAFT|url=http://www.aviationmuseum.net/ouraircraft.htm|website=Norfolk and Suffolk Aviation Museum|access-date=6 June 2017}}{{cite web |title=Valetting the Valetta |url=http://www.aviationmuseum.net/NewsItems/News_170215.html |website=Norfolk and Suffolk Aviation Museum |access-date=6 June 2017}}

• A Valetta T.3 cockpit is displayed at the South Yorkshire Aircraft Museum, Doncaster. While there is no certain identification of the cockpit, it is assumed that it belonged to WJ476.

{{Aircraft specs

|ref= Vickers Aircraft since 1908Andrews and Morgan 1988, p. 416.

|prime units?= imp

|genhide=

|crew= 4

|capacity= 34 troops or 20 paratroopsAndrews and Morgan 1988, p. 411.

|length m=

|length ft= 62

|length in= 11

|span m=

|span ft= 89

|span in= 3

|height m=

|height ft= 19

|height in= 7

|height note= (tail down)

|wing area sqm=

|wing area sqft= 882

|wing area note=

|aspect ratio=

|airfoil=

|empty weight kg=

|empty weight lb= 24980

|empty weight note=

|gross weight kg=

|gross weight lb= 36500

|gross weight note=

|fuel capacity= {{convert|724|impgal|USgal L|abbr=on}}

|more general=

|eng1 number= 2

|eng1 name= Bristol Hercules 230

|eng1 type= 14-cylinder radial piston engine

|eng1 kw=

|eng1 hp=2000

|prop blade number= 4

|prop name= de Havilland (or Rotol) four-bladed constant-speed

|prop dia m=

|prop dia ft= 13

|prop dia in= 3

|prop dia note=Bridgman 1951, pp. 92c–93c.

|perfhide=

|max speed kmh=

|max speed mph= 258

|max speed kts=

|max speed note= at {{convert|10000|ft|m|abbr=on}}

|cruise speed kmh=

|cruise speed mph= 172

|cruise speed note= at {{convert|10000|ft|m|abbr=on}}

|range km=

|range miles=1460

|range note= at {{convert|10000|ft|m|abbr=on}} and {{convert|211|mph|kn km/h|abbr=on}}

|endurance=

|ceiling m=

|ceiling ft= 21500

|g limits=

|roll rate=

|climb rate ms=

|climb rate ftmin= 1275

|more performance= *Take-off distance to 50 ft (15 m): {{convert|3750|ft|m|abbr=on}}

• Landing distance from 50 ft (15 m): {{convert|4275|ft|m|abbr=on}}

|armament=

|guns=

|bombs=

|rockets=

|missiles=

|hardpoints=

|hardpoint capacity=

|hardpoint rockets=

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}}

A long sequence in the 1957 film High Flight shows the Valetta T3 used as a flying navigation classroom at RAF College Cranwell.{{citation needed|date=March 2020}}

{{aircontent

|related=

• Vickers Varsity
• Vickers VC.1 Viking

|similar aircraft=

• Ilyushin Il-12
• Sud-Ouest Bretagne

|lists=

|see also=

}}

{{reflist}}

{{refbegin}}

• Andrews, C.F. Vickers Aircraft Since 1908. London: Putnam, 1969.
• Andrews, C.F. and E.B. Morgan. Vickers Aircraft since 1908. London: Putnam, 1988. {{ISBN|0-85177-815-1}}.
• Bridgman, Leonard. Jane's All the World's Aircraft 1951–52. London: Sampson Low, Marston & Company, Ltd, 1951.
• Martin, Bernard. The Viking, Valetta and Varsity. Air-Britain (Historians) Ltd. 1975. {{ISBN|0-85130-038-3}}.
• Thetford, Owen. Aircraft of the Royal Air Force 1918-57. London: Putnam, 1st edition, 1957.

{{refend}}

{{Commons category}}

• [http://www.flightglobal.com/pdfarchive/view/1947/1947%20-%201495.html Newest RAF Transport] Flight 1947

{{Vickers aircraft}}

{{ADF aircraft designations}}

Valetta, Vickers

Valetta

Category:Mid-wing aircraft

Category:Aircraft first flown in 1947

Category:Twin piston-engined tractor aircraft

Category:Aircraft with retractable conventional landing gear