de Havilland Canada DHC-2 Beaver
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de Havilland Canada DHC-2 Beaver
Le DHC-2 sur wikipedia.fr
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Le de Havilland Canada DHC-2, aussi connu sous le nom de Beaver (en français, castor) est un petit avion monoplan.
Après la Seconde Guerre mondiale, de Havilland Canada développe cet avion, adapté aux rudes conditions de l'exploitation du Nord du Canada.
Il fut conçu pour être simple, robuste et fiable, avec un seul moteur en étoile et pouvant être équipé soit de roues, soit de skis, soit de flotteurs pour pouvoir atterrir sur tout type de terrain.
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Le de Havilland Canada DHC-2, aussi connu sous le nom de Beaver (en français, castor) est un petit avion monoplan.
Après la Seconde Guerre mondiale, de Havilland Canada développe cet avion, adapté aux rudes conditions de l'exploitation du Nord du Canada.
Il fut conçu pour être simple, robuste et fiable, avec un seul moteur en étoile et pouvant être équipé soit de roues, soit de skis, soit de flotteurs pour pouvoir atterrir sur tout type de terrain.
LOUPO- CLUB
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Re: de Havilland Canada DHC-2 Beaver
Il fut construit entre 1947 et 1965 à 1657 exemplaires.
À partir de 1951, de Havilland Canada développe un avion similaire, mais plus grand, le DHC-3 Otter.
À partir de 1951, de Havilland Canada développe un avion similaire, mais plus grand, le DHC-3 Otter.
LOUPO- CLUB
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Re: de Havilland Canada DHC-2 Beaver
Le Beaver vu par la rédaction de Wikipedia.en
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The de Havilland Canada DHC-2 Beaver is a single engined, high wing, propeller-driven, STOL aircraft developed by de Havilland Canada, primarily known as a bush plane. It is used for cargo and passenger hauling, aerial application (crop dusting and aerial topdressing), and has been widely adopted by armed forces as a utility aircraft.
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The de Havilland Canada DHC-2 Beaver is a single engined, high wing, propeller-driven, STOL aircraft developed by de Havilland Canada, primarily known as a bush plane. It is used for cargo and passenger hauling, aerial application (crop dusting and aerial topdressing), and has been widely adopted by armed forces as a utility aircraft.
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Re: de Havilland Canada DHC-2 Beaver
The United States Army purchased several hundred; nine DHC-2s are still in service with the U.S. Air Force Auxiliary (Civil Air Patrol) for search and rescue. A Royal New Zealand Air Force Beaver supported Sir Edmund Hillary's expedition to the South Pole.
Over 1,600 Beavers were produced until 1967 when the original line shut down.
Due to its success, the Royal Canadian Mint commemorated the Beaver on a special edition Canadian quarter in November 1999.
Over 1,600 Beavers were produced until 1967 when the original line shut down.
Due to its success, the Royal Canadian Mint commemorated the Beaver on a special edition Canadian quarter in November 1999.
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Re: de Havilland Canada DHC-2 Beaver
Design and development
In the immediate post-war era, de Havilland Canada management turned to the civilian market for continued work, aware that military contracts were unlikely to guarantee business.
The company had recently hired Punch Dickins, a famous bush pilot, as Director of Sales, and he began an extensive program of collecting requests from other pilots in order to understand what they needed in a new aircraft.
In the immediate post-war era, de Havilland Canada management turned to the civilian market for continued work, aware that military contracts were unlikely to guarantee business.
The company had recently hired Punch Dickins, a famous bush pilot, as Director of Sales, and he began an extensive program of collecting requests from other pilots in order to understand what they needed in a new aircraft.
LOUPO- CLUB
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Re: de Havilland Canada DHC-2 Beaver
Almost without variation, the pilots asked for tremendous extra power and STOL performance in a design that could be easily fitted with wheels, skis, or floats. When de Havilland engineers noted that this would result in poor cruise performance, one pilot replied "You only have to be faster than a dog sled".
Other suggestions were seemingly mundane but important in the bush plane world; for instance, full-sized doors were installed on both sides of the aircraft so it could be easily loaded no matter which side of a dock it tied up on.
The doors were also made wide enough to allow for a 45 gallon drum to be rolled up into the aircraft.
Other suggestions were seemingly mundane but important in the bush plane world; for instance, full-sized doors were installed on both sides of the aircraft so it could be easily loaded no matter which side of a dock it tied up on.
The doors were also made wide enough to allow for a 45 gallon drum to be rolled up into the aircraft.
LOUPO- CLUB
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Re: de Havilland Canada DHC-2 Beaver
On September 17, 1946, de Havilland officially put together a design team consisting of Fred Buller, Dick Hiscocks, Jim Houston and W. Jakimiuk, led by Phil Garratt.
The new aircraft was specifically designed to be all-metal, unlike older designs like the famous Noorduyn Norseman, using “steel from the engine to the firewall, heavy aluminum truss frames with panels and doors throughout the front seat area, lighter trusses toward the rear and all monocoque construction aft”.
The new aircraft was specifically designed to be all-metal, unlike older designs like the famous Noorduyn Norseman, using “steel from the engine to the firewall, heavy aluminum truss frames with panels and doors throughout the front seat area, lighter trusses toward the rear and all monocoque construction aft”.
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Re: de Havilland Canada DHC-2 Beaver
At the time de Havilland Canada was still a British company, and there were plans to fit the evolving design with a British engine.
This limited power, so the wing area was greatly increased in order to maintain STOL performance. When Pratt & Whitney Canada offered to supply war-surplus 450 hp (340 kW) Wasp Jr engines at a low price, the aircraft ended up with extra power as well as the original long wing.
The result was unbeatable STOL performance for an aircraft of its size.
This limited power, so the wing area was greatly increased in order to maintain STOL performance. When Pratt & Whitney Canada offered to supply war-surplus 450 hp (340 kW) Wasp Jr engines at a low price, the aircraft ended up with extra power as well as the original long wing.
The result was unbeatable STOL performance for an aircraft of its size.
LOUPO- CLUB
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Re: de Havilland Canada DHC-2 Beaver
After much testing, and with adjustments and improvements, the innovative airplane was ready for the sales circuit. It just needed a proper name.
Since de Havilland Canada airplanes were all named after animals, it was decided that the new bush plane was much like the hard-working beaver.
The first flight of the DHC-2 Beaver was in Downsview, Ontario by Second World War flying ace Russell Bannock on August 16, 1947.
The first production aircraft was delivered to the Ontario Department of Lands and Forests, a design partner, in April 1948.
Since de Havilland Canada airplanes were all named after animals, it was decided that the new bush plane was much like the hard-working beaver.
The first flight of the DHC-2 Beaver was in Downsview, Ontario by Second World War flying ace Russell Bannock on August 16, 1947.
The first production aircraft was delivered to the Ontario Department of Lands and Forests, a design partner, in April 1948.
LOUPO- CLUB
- Messages : 647
Localisation : LA !
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