Fokker F.XXII

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Fokker F.XXII
Fokker F.XXII (SE-ABA)
Fokker F.XXII of AB Aerotransport
Type: Airliner
Design country:

NetherlandsNetherlands Netherlands

Manufacturer:

Fokker

First flight:

Early 1935

Commissioning:

March 1935

Production time:

1935

Number of pieces:

4th

The Fokker F.XXII (later unofficially known as the Fokker F.22 ) was a four-engine airliner made by the Dutch manufacturer Fokker . In total, only four copies of this type were made, which was designed to carry 22 passengers.

history

In the early 1930s, the airline Koninklijke Luchtvaart Maatschappij (KLM) announced that it needed a new long-haul aircraft for its route from Amsterdam to Batavia ( Jakarta ). Fokker then began developing a four-engine aircraft that was designed for 32 passengers and four crew members. This type, known as the Fokker F.XXXVI , made its maiden flight on June 22, 1934 . KLM had originally promised Fokker an order for six F.XXXVI, but in the meantime it has decided on more powerful all-metal aircraft of the Douglas DC-2 type , so that the company only accepted the prototype. The Swedish AB Aerotransport showed interest in the F.XXXVI, but decided not to buy it because it was too big for their needs.

After losing the KLM order, Fokker modified the design of the F.XXXVI to the smaller version F.XXII, which was intended for routes within Europe and offered space for 22 passengers. The prototype made its maiden flight in early 1935 and was taken over by KLM in March 1935 ( registration number : PH-AJP, baptismal name: " Papegaai "). In the same month, the Swedish AB Aerotransport received the first series aircraft (SE-ABA, baptismal name: " Lapland "). Fokker delivered a further machine to KLM on April 25th (PH-AJQ, christened name: “ Kwikstaart ”) and in May 1935 (PH-AJR, christened name: “ Roerdomp ”). On July 14, 1935 , the "Kwikstaart" (PH-AJQ) had an accident after taking off from Schiphol Airport . The "Lappland" operated by AB Aerotransport collided with a building on June 9, 1936 while attempting an emergency landing in Malmö after three engines had failed. KLM used their two remaining F.XXIIs in regular service until mid-1939 .

The airline British American Air Services acquired the "Roerdomp" (PH-AJR) in August 1939, which was given the British registration G-AXFR. The "Papegaai" (PH-AJP) was sold by KLM to Scottish Aviation a month later and registered as G-AFZP in Great Britain. In October 1941, the Royal Air Force requisitioned both machines as training and transport aircraft. They received the military license plates HM159 and HM160. On July 3, 1943, the HM160 (formerly PH-AJR) crashed into Loch Tarbert near the Scottish Kintyre peninsula due to a fire on board . After the end of World War II , Scottish Aviation got the HM159 (formerly PH-AJP) back. The aircraft was awarded in 1946 the civil registration G-AFZP and was followed by the on the Prestwick -based Scottish Airlines , a simultaneously formed subsidiary of Scottish Aviation, by the end of 1947 for scheduled air services between Prestwick and Belfast operated.

construction

The Fokker F.XXII was a cantilevered shoulder wing . She had a rigid main landing gear with tail skid and four was nine cylinder - radial engines of the type Pratt & Whitney Wasp T1D1 driven. The engines had an output of 373 kW (500 hp) each and were mounted on the leading edge of both wings . The hull consisted of a welded tubular steel construction . The aircraft nose and cockpit had plywood planking , the other fuselage sections and the tail unit were only covered with fabric. The air-conditioned and soundproofed cabin had a wooden interior paneling. The wings, in which the fuel tanks were located, were made of wood, including the wing spars and inner struts .

Technical specifications

Parameter Data
crew 4th
Passengers 22nd
length 21.52 m
span 30.00 m
height 4.60 m
Wing area 130 m²
Empty mass 8100 kg
Max. Takeoff mass 13000 kg
Cruising speed 215 km / h
Top speed 285 km / h
Range 1350 km
Service ceiling 4900 m
Engines four nine- cylinder radial engines of the
Pratt & Whitney Wasp T1D1 type, each with 373 kW (500 PS)

See also

Web links

Commons : Fokker F.XXII  - collection of images, videos and audio files

Individual evidence

  1. ↑ a b c d e f Aero, issue 82, year 1985
  2. ↑ Kwikstaart. In: aviacrash.nl. Retrieved December 28, 2016 .
  3. ^ KLM, Fokker F.XXII PH-AJQ, July 14, 1935. In: Aviation Safety Network. Retrieved December 28, 2016 .
  4. ^ AB Aerotransport, Fokker F.XXII SE-ABA, June 6, 1936. In: Aviation Safety Network. Retrieved December 28, 2016 .
  5. ^ Royal Air Force, Fokker F.XXII HM159, July 3, 1943. In: Aviation Safety Network. Retrieved December 28, 2016 .