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aeronewsline :: Accueil :: Histoire :: Aéronefs 1920 à 1939
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Douglas DC-5
par MartinS Mer 01 Sep 2010, 14:06
Le DC-5 de Douglas par le rédacteur de Wikipedia.fr. Merci !
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Le DC-5 était un avion bimoteur construit par Douglas Aircraft Company entre 1939 et 1940. Il fut le seul avion de ligne de Douglas à aile haute.
Il s'agit d'un avion conçu pour compléter les DC-3 et DC-4, mais sur de courtes distances.
Volant pour la première fois le 20 février 1939, il était propulsé par deux moteurs Wright Cyclone de 900 ch remplacés par la suite par des Wright Cyclone de 1 100 ch. Il disposait d’un train d’atterrissage tricycle rentrant avec un aménagement de 16 à 22 passagers.
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Le DC-5 était un avion bimoteur construit par Douglas Aircraft Company entre 1939 et 1940. Il fut le seul avion de ligne de Douglas à aile haute.
Il s'agit d'un avion conçu pour compléter les DC-3 et DC-4, mais sur de courtes distances.
Volant pour la première fois le 20 février 1939, il était propulsé par deux moteurs Wright Cyclone de 900 ch remplacés par la suite par des Wright Cyclone de 1 100 ch. Il disposait d’un train d’atterrissage tricycle rentrant avec un aménagement de 16 à 22 passagers.
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Re: Douglas DC-5
par MartinS Mer 01 Sep 2010, 14:08
Quelques commandes furent passées dont 9 exemplaires par l’ancienne British Airways. Seule la KLM en prit livraison dont deux allèrent aux Caraïbes anglophones et deux à la KNILM.
Les appareils des Caraïbes allèrent ensuite à la KNILM dont 3 aidèrent à l’évacuation de civils à Java avant de passer aux mains d’Australian National Airways et de la RAAF.
Les appareils des Caraïbes allèrent ensuite à la KNILM dont 3 aidèrent à l’évacuation de civils à Java avant de passer aux mains d’Australian National Airways et de la RAAF.
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Re: Douglas DC-5
par MartinS Mer 01 Sep 2010, 14:09
Mais au moment de son entrée en service en 1940, la Seconde Guerre mondiale mit fin à sa carrière, Douglas Aircraft se convertissant dans la production d'avions militaires. Seuls cinq exemplaires civils furent construits ; plus aucun n'existe de nos jours.
Le DC-5 est désigné en tant que C-110 par l'US Air Force et en tant que R3D par l'US Navy, ces derniers au nombre de 7 exemplaires furent utilisés par l’U.S. Navy et le Marine Corps pour le transport de personnel, de parachutistes et de fret.
Le DC-5 est désigné en tant que C-110 par l'US Air Force et en tant que R3D par l'US Navy, ces derniers au nombre de 7 exemplaires furent utilisés par l’U.S. Navy et le Marine Corps pour le transport de personnel, de parachutistes et de fret.
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Re: Douglas DC-5
par MartinS Mer 01 Sep 2010, 14:12
Les DC-5 / C-110 sur Wikipedia.en. Merci !
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The Douglas DC-5, the least known of the famous DC airliner series, was a 16-22 seat, twin-propeller aircraft intended for shorter routes than the DC-3 or DC-4.
However, by the time it entered commercial service in 1940, many airlines were canceling orders; consequently, only five civilian DC-5s were ever built. With the Douglas Aircraft Company already converting to war production, the DC-5 was soon overtaken by events, although a limited number of military variants were produced.
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The Douglas DC-5, the least known of the famous DC airliner series, was a 16-22 seat, twin-propeller aircraft intended for shorter routes than the DC-3 or DC-4.
However, by the time it entered commercial service in 1940, many airlines were canceling orders; consequently, only five civilian DC-5s were ever built. With the Douglas Aircraft Company already converting to war production, the DC-5 was soon overtaken by events, although a limited number of military variants were produced.
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Re: Douglas DC-5
par MartinS Mer 01 Sep 2010, 14:16
Design and development
The Douglas Commercial Model 5 was developed in 1938 as a 18/24 passenger civilian airliner, designed to use either Pratt & Whitney R-1690 or Wright Cyclone engines.
Innovative features for the time included a high wing and tricycle landing gear, the relatively unique configuration providing for ease of passenger entry, loading and engine servicing.
An very early change in design was changing the horizontal tail group from straight to a 15-degree dihedral to improve stability while another significant modification was in altering the nacelles to have exhaust stacks, retroactively incorporated after the series entered production.
The Douglas Commercial Model 5 was developed in 1938 as a 18/24 passenger civilian airliner, designed to use either Pratt & Whitney R-1690 or Wright Cyclone engines.
Innovative features for the time included a high wing and tricycle landing gear, the relatively unique configuration providing for ease of passenger entry, loading and engine servicing.
An very early change in design was changing the horizontal tail group from straight to a 15-degree dihedral to improve stability while another significant modification was in altering the nacelles to have exhaust stacks, retroactively incorporated after the series entered production.
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Re: Douglas DC-5
par MartinS Mer 01 Sep 2010, 14:17
An unusual "optical trick" applied to the profile of the prototype was painting the top of the vertical stabilizer and outline of the engine nacelles a darker color, the shapes curving to follow the aircraft's contour, thus making the tail and engines appear somewhat smaller and the aircraft sleeker.
Prior to the US entry into World War II, one prototype and four production aircraft were constructed.
Prior to the US entry into World War II, one prototype and four production aircraft were constructed.
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Re: Douglas DC-5
par MartinS Mer 01 Sep 2010, 14:19
Operational history
The prototype DC-5, Douglas serial 411, built at El Segundo with Wright Cyclone 1,000 hp R-1820-44 engines, made its first flight on February 20, 1939 with Carl A. Cover at the controls.
The sole prototype (originally configured with just eight seats) became the personal aircraft of William E. Boeing which he named "Rover".
It was later impressed into the US Navy and converted for military use as an R3D variant in February 1942.
The prototype DC-5, Douglas serial 411, built at El Segundo with Wright Cyclone 1,000 hp R-1820-44 engines, made its first flight on February 20, 1939 with Carl A. Cover at the controls.
The sole prototype (originally configured with just eight seats) became the personal aircraft of William E. Boeing which he named "Rover".
It was later impressed into the US Navy and converted for military use as an R3D variant in February 1942.
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Re: Douglas DC-5
par MartinS Mer 01 Sep 2010, 14:21
Although the first customer was KLM (Koninklijke Luchtvaart Maatschappi) of The Netherlands, a domestic carrier, Pennsylvania Central (which would be renamed Capital, then incorporated into United Air Lines), ordered six and SCADTA, (Sociedad Colomba-Alemana de Transportes Aereos) ancestor of today's AVIANCA in Colombia, another two DC-5s.
The other four aircraft were sold to KLM and used by their colonial subsidiaries, Indonesia in particular.
When Douglas went on a war footing, DC-5 production was curtailed so as to build additional Dauntless dive bombers for the Navy and Marines with only KLM receiving delivery of the high-winged airliner.
The other four aircraft were sold to KLM and used by their colonial subsidiaries, Indonesia in particular.
When Douglas went on a war footing, DC-5 production was curtailed so as to build additional Dauntless dive bombers for the Navy and Marines with only KLM receiving delivery of the high-winged airliner.
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Re: Douglas DC-5
par MartinS Mer 01 Sep 2010, 14:23
The dozen DC-5s were completed but the SBD contracts prevailed. The first two airliners flew the Paramaribo-Curaçao route, and the other two operated from Batavia (now Jakarta, Indonesia).
All four were used for the 1942 evacuation of civilians from Java to Australia, during which "PK-ADA" was damaged and abandoned,along with the destruction of "PK-ADB" at Batavia Kemajoran airport in an air strike by the JAAF on February 9, 1942. Japanese forces captured "PK-ADA" and using parts from the ruined "ADB", subsequently repaired and tested it in Tachikawa, later during 1943, operating the DC-5 in camouflage with Japanese Army Air Force markings as a transport from bases back in the Home Islands.
All four were used for the 1942 evacuation of civilians from Java to Australia, during which "PK-ADA" was damaged and abandoned,along with the destruction of "PK-ADB" at Batavia Kemajoran airport in an air strike by the JAAF on February 9, 1942. Japanese forces captured "PK-ADA" and using parts from the ruined "ADB", subsequently repaired and tested it in Tachikawa, later during 1943, operating the DC-5 in camouflage with Japanese Army Air Force markings as a transport from bases back in the Home Islands.
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Re: Douglas DC-5
par MartinS Mer 01 Sep 2010, 14:24
The two remaining aircraft, "ADC" and "ADD" made their way safely to Australia where the aircraft were interned by the Allied Directorate of Air Transport there and operated by the USAAF as the C-110.
The wartime history of "PK-ADC" was brief, however, for it was destroyed in a landing accident shortly after its arrival "down under".
"ADD" flew for the balance of the war under the aegis of Australian National Airways, on support missions inside the country with the temporary license "VH-CXC".
The wartime history of "PK-ADC" was brief, however, for it was destroyed in a landing accident shortly after its arrival "down under".
"ADD" flew for the balance of the war under the aegis of Australian National Airways, on support missions inside the country with the temporary license "VH-CXC".
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Re: Douglas DC-5
par MartinS Mer 01 Sep 2010, 14:27
In 1939, the US Navy ordered seven aircraft; three of the R3D-1 version (of which the first one crashed before delivery), and four R3D-2s.
The latter were used by the USMC because of the 1,015 HP R-1820-44 engines, the large cargo holds and the 22 seats for paratroops.
The latter were used by the USMC because of the 1,015 HP R-1820-44 engines, the large cargo holds and the 22 seats for paratroops.
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Re: Douglas DC-5
par MartinS Mer 01 Sep 2010, 14:28
After World War II, the DC-5 never re-entered series production as an abundance of surplus DC-3/C-47 aircraft were released into civil service.
In 1948, the last surviving DC-5 (c/n 426) was smuggled to Israel for military use.
The aircraft arrived at Haifa in May 1948, and from there went to Sde Dov, where its former markings were removed and the name "Yankee Pasha - The Bagel Lancer" was crudely painted on the nose by hand.
In 1948, the last surviving DC-5 (c/n 426) was smuggled to Israel for military use.
The aircraft arrived at Haifa in May 1948, and from there went to Sde Dov, where its former markings were removed and the name "Yankee Pasha - The Bagel Lancer" was crudely painted on the nose by hand.
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