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Convair XFY Pogo
par Lunger Lun 19 Juil 2010, 11:33
Le Pogo de Convair sur Wikipedia.en
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The Convair XFY Pogo [Vous devez être inscrit et connecté pour voir ce lien] was an experiment in [Vous devez être inscrit et connecté pour voir ce lien].
The Pogo had [Vous devez être inscrit et connecté pour voir ce lien] and three-bladed [Vous devez être inscrit et connecté pour voir ce lien] powered by a 5,500 hp [Vous devez être inscrit et connecté pour voir ce lien]-A-16 [Vous devez être inscrit et connecté pour voir ce lien].
It was intended to be a high-performance [Vous devez être inscrit et connecté pour voir ce lien] capable of operating from small [Vous devez être inscrit et connecté pour voir ce lien].
Landing the XFY-1 was difficult as the pilot had to look over his shoulder while carefully working the throttle to land.
[Vous devez être inscrit et connecté pour voir ce lien]
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
The Convair XFY Pogo [Vous devez être inscrit et connecté pour voir ce lien] was an experiment in [Vous devez être inscrit et connecté pour voir ce lien].
The Pogo had [Vous devez être inscrit et connecté pour voir ce lien] and three-bladed [Vous devez être inscrit et connecté pour voir ce lien] powered by a 5,500 hp [Vous devez être inscrit et connecté pour voir ce lien]-A-16 [Vous devez être inscrit et connecté pour voir ce lien].
It was intended to be a high-performance [Vous devez être inscrit et connecté pour voir ce lien] capable of operating from small [Vous devez être inscrit et connecté pour voir ce lien].
Landing the XFY-1 was difficult as the pilot had to look over his shoulder while carefully working the throttle to land.
Lunger- CLUB
- Messages : 410
Re: Convair XFY Pogo
par Lunger Lun 19 Juil 2010, 11:35
Design and development
After [Vous devez être inscrit et connecté pour voir ce lien], the brewing [Vous devez être inscrit et connecté pour voir ce lien] prompted top [Vous devez être inscrit et connecté pour voir ce lien] and [Vous devez être inscrit et connecté pour voir ce lien] to study VTOL operations.
It was envisaged to protect task forces, convoys or any fleet, even without aircraft carriers, by placing VTOLs virtually in any ship.
After [Vous devez être inscrit et connecté pour voir ce lien], the brewing [Vous devez être inscrit et connecté pour voir ce lien] prompted top [Vous devez être inscrit et connecté pour voir ce lien] and [Vous devez être inscrit et connecté pour voir ce lien] to study VTOL operations.
It was envisaged to protect task forces, convoys or any fleet, even without aircraft carriers, by placing VTOLs virtually in any ship.
Lunger- CLUB
- Messages : 410
Re: Convair XFY Pogo
par Lunger Lun 19 Juil 2010, 11:36
These fighters would be housed within a teepee-like protective housings, saving limited deck space available aboard ships.
They would provide first line of airborne defense and reconnaissance capability, before more aircraft could be scrambled to help.
They would provide first line of airborne defense and reconnaissance capability, before more aircraft could be scrambled to help.
Lunger- CLUB
- Messages : 410
Re: Convair XFY Pogo
par Lunger Lun 19 Juil 2010, 11:46
Testing and evaluation
On 19 April 1954, a Convair engineering test pilot and Marine reservist, Lieutenant Colonel James F. "Skeets" Coleman, made the first tethered flight in the Pogo.
The XFY-1 was like no other propeller driven aircraft before it. No previous aircraft with a similar weight, engine power, or size had ever attempted to take off and land vertically.
On 19 April 1954, a Convair engineering test pilot and Marine reservist, Lieutenant Colonel James F. "Skeets" Coleman, made the first tethered flight in the Pogo.
The XFY-1 was like no other propeller driven aircraft before it. No previous aircraft with a similar weight, engine power, or size had ever attempted to take off and land vertically.
Lunger- CLUB
- Messages : 410
Re: Convair XFY Pogo
par Lunger Lun 19 Juil 2010, 11:48
For the safety of both the craft and its pilot, the propeller hub cover was removed and replaced by safety tether lines for the first flight, in case Coleman would lose control of the craft and would need to be tethered to prevent the craft falling to the ground.
On the other end of the tether was another engineer, [Vous devez être inscrit et connecté pour voir ce lien].
On the other end of the tether was another engineer, [Vous devez être inscrit et connecté pour voir ce lien].
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- Messages : 410
Re: Convair XFY Pogo
par Lunger Lun 19 Juil 2010, 11:51
If Coleman ever lost control, McGreary controlled the winch which could be turned to raise the tethers to prevent the craft from plummeting to the ground.
For further safety preventions, four security cables were fastened to each wing in case control was lost in any axis.
For further safety preventions, four security cables were fastened to each wing in case control was lost in any axis.
Lunger- CLUB
- Messages : 410
Re: Convair XFY Pogo
par Lunger Lun 19 Juil 2010, 11:52
Throughout the next few weeks, Coleman logged almost 60 hours in test flights in the Pogo, and by August, the test was moved to outdoor conditions.
On 1 August 1954, Coleman logged two outdoor test flights, the second flying 150 ft (45.7 m) into the air, and shortly after he flew 70 takeoff-landing drills at the [Vous devez être inscrit et connecté pour voir ce lien], California.
The first conversion to horizontal flight took place on 2 November 1954.
On 1 August 1954, Coleman logged two outdoor test flights, the second flying 150 ft (45.7 m) into the air, and shortly after he flew 70 takeoff-landing drills at the [Vous devez être inscrit et connecté pour voir ce lien], California.
The first conversion to horizontal flight took place on 2 November 1954.
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- Messages : 410
Re: Convair XFY Pogo
par Lunger Lun 19 Juil 2010, 11:54
Upon later flights with longer durations, flaws in the design were found.
Due to the Pogo's lightweight design, and the lack of spoilers and air brakes, the aircraft lacked the ability to slow down and stop efficiently after moving at high speeds.
Due to the Pogo's lightweight design, and the lack of spoilers and air brakes, the aircraft lacked the ability to slow down and stop efficiently after moving at high speeds.
Lunger- CLUB
- Messages : 410
Re: Convair XFY Pogo
par Lunger Lun 19 Juil 2010, 11:55
Landing was also a problem, as the pilot had to look back behind himself during a landing to properly stabilize the craft.
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- Messages : 410
Re: Convair XFY Pogo
par Lunger Lun 19 Juil 2010, 11:56
It became evident that even if technical problems could be overcome, contemporary VTOL aircraft would be flown only by the most experienced pilots.
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- Messages : 410
Re: Convair XFY Pogo
par Lunger Lun 19 Juil 2010, 11:57
Thus, it was not feasible to place VTOL fighters—as previously hoped for—on every ship.
As jet engined fighters approached Mach 2, turboprop VTOL fighter became disadvantaged with only half the top speed.
Due to these problems, the XFY Project was put on hiatus.
As jet engined fighters approached Mach 2, turboprop VTOL fighter became disadvantaged with only half the top speed.
Due to these problems, the XFY Project was put on hiatus.
Lunger- CLUB
- Messages : 410
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