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Ryan XV-5 Vertifan
par Spirell Lun 12 Juil 2010, 12:53
Le Ryan XV 5 sur WIKIPEDIA.en
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The [Vous devez être inscrit et connecté pour voir ce lien] XV-5 Vertifan was a jet powered V/STOL experimental aircraft in the 1960s.
The [Vous devez être inscrit et connecté pour voir ce lien] commissioned the Ryan VZ-11RY (which was redesignated as the XV-5 in 1962) in 1961, along with the [Vous devez être inscrit et connecté pour voir ce lien] (redesignated as the XV-4).
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The [Vous devez être inscrit et connecté pour voir ce lien] XV-5 Vertifan was a jet powered V/STOL experimental aircraft in the 1960s.
The [Vous devez être inscrit et connecté pour voir ce lien] commissioned the Ryan VZ-11RY (which was redesignated as the XV-5 in 1962) in 1961, along with the [Vous devez être inscrit et connecté pour voir ce lien] (redesignated as the XV-4).
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Re: Ryan XV-5 Vertifan
par Spirell Lun 12 Juil 2010, 12:55
Design
The XV-5 drove three fans.
Engine gases from two 3,000 lbf (13 kN) thrust [Vous devez être inscrit et connecté pour voir ce lien], similar to those used in the [Vous devez être inscrit et connecté pour voir ce lien] were sent
to exit by turning fans.
It was much simpler in concept, if not execution, compared to the future [Vous devez être inscrit et connecté pour voir ce lien] which has one fan driven by a driveshaft, balanced by a rotating rear nozzle.
The XV-5 drove three fans.
Engine gases from two 3,000 lbf (13 kN) thrust [Vous devez être inscrit et connecté pour voir ce lien], similar to those used in the [Vous devez être inscrit et connecté pour voir ce lien] were sent
to exit by turning fans.
It was much simpler in concept, if not execution, compared to the future [Vous devez être inscrit et connecté pour voir ce lien] which has one fan driven by a driveshaft, balanced by a rotating rear nozzle.
Spirell- CLUB
- Messages : 121
Re: Ryan XV-5 Vertifan
par Spirell Lun 12 Juil 2010, 12:57
There was a large fan in each wing with covers resembling half-garbage can lids which flipped up for vertical flight.
The 36 inch (0.9 m) nose fan provided adequate pitch control, but made flying tricky.
The fans provided vertical thrust of 16,000 pounds force (71 kN), nearly three times the thrust of the engines alone.
The 36 inch (0.9 m) nose fan provided adequate pitch control, but made flying tricky.
The fans provided vertical thrust of 16,000 pounds force (71 kN), nearly three times the thrust of the engines alone.
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- Messages : 121
Re: Ryan XV-5 Vertifan
par Spirell Lun 12 Juil 2010, 13:01
Wing fan RPM was determined by the output from the J85 engines and fan flow at the fan inlets.
Roll control was by differential actuation of the wing-fan exit louvers.
Roll control was by differential actuation of the wing-fan exit louvers.
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- Messages : 121
Re: Ryan XV-5 Vertifan
par Spirell Lun 12 Juil 2010, 13:02
The project performance was moderately subsonic with delta wings
somewhat like an [Vous devez être inscrit et connecté pour voir ce lien].
There was also a fan in the nose, an unusual intake situated above the 2-seat [Vous devez être inscrit et connecté pour voir ce lien] cockpit, and a [Vous devez être inscrit et connecté pour voir ce lien].
somewhat like an [Vous devez être inscrit et connecté pour voir ce lien].
There was also a fan in the nose, an unusual intake situated above the 2-seat [Vous devez être inscrit et connecté pour voir ce lien] cockpit, and a [Vous devez être inscrit et connecté pour voir ce lien].
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Re: Ryan XV-5 Vertifan
par Spirell Lun 12 Juil 2010, 13:03
The XV-5A was finished in Army green, while the XV-5B was painted in white NASA colors.
The fans did generate as much thrust as was hoped, but the transition was difficult and abrupt.
The XV-5 would be one of the last aircraft made by Ryan, which made mainly drones after the mid 1960s.
The fans did generate as much thrust as was hoped, but the transition was difficult and abrupt.
The XV-5 would be one of the last aircraft made by Ryan, which made mainly drones after the mid 1960s.
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- Messages : 121
Re: Ryan XV-5 Vertifan
par Spirell Lun 12 Juil 2010, 13:05
The XV-5 was one of many dozens of aircraft which attempted to produce a successful vertical takeoff aircraft, but the lift fan system was heavy, and took a lot of internal volume.
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- Messages : 121
Re: Ryan XV-5 Vertifan
par Spirell Lun 12 Juil 2010, 13:06
Service
Two 12,500 lb (maximum gross weight) XV-5A were evaluated in late 1966 by 15 test pilots (the "XV-5A Fan Club").
One was destroyed in a crash during a public flight demonstration on April 27, 1965, killing [Vous devez être inscrit et connecté pour voir ce lien] test pilot [Vous devez être inscrit et connecté pour voir ce lien].
Two 12,500 lb (maximum gross weight) XV-5A were evaluated in late 1966 by 15 test pilots (the "XV-5A Fan Club").
One was destroyed in a crash during a public flight demonstration on April 27, 1965, killing [Vous devez être inscrit et connecté pour voir ce lien] test pilot [Vous devez être inscrit et connecté pour voir ce lien].
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Re: Ryan XV-5 Vertifan
par Spirell Lun 12 Juil 2010, 13:08
Ads and tests proposed a rescue version which would winch a person into a compartment behind the pilots.
The second plane was extensively damaged in 1966 during trials as a rescue aircraft when the dummy was ingested into a wing fan, fatally injuring the pilot, Bob Tittle, although it was judged that the fan actually still functioned well enough to continue controlled flight.
The second plane was extensively damaged in 1966 during trials as a rescue aircraft when the dummy was ingested into a wing fan, fatally injuring the pilot, Bob Tittle, although it was judged that the fan actually still functioned well enough to continue controlled flight.
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Re: Ryan XV-5 Vertifan
par Spirell Lun 12 Juil 2010, 13:09
The second plane was rebuilt as the modified XV-5B, with tests continuing until 1971.
A XV-5B can be seen at the Fort Rucker Aviation Museum, Alabama.
A XV-5B can be seen at the Fort Rucker Aviation Museum, Alabama.
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- Messages : 121
Re: Ryan XV-5 Vertifan
par Spirell Lun 12 Juil 2010, 13:11
Specifications (XV-5) (performance estimated)
Data from Jane's All The World's Aircraft 1965-66
General characteristics
Data from Jane's All The World's Aircraft 1965-66
General characteristics
- Crew: 2
- Length: 44 ft 6¼ in (13.56 m)
- [Vous devez être inscrit et connecté pour voir ce lien]: 29 ft 10 in (9.09 m)
- Height: 14 ft 9 in (4.50 m)
- Wing area: 260.3 sq ft (24.19m²)
- Empty weight: 7,541 lb (3,420 kg)
- [Vous devez être inscrit et connecté pour voir ce lien]: 13,600 lb (6,170 kg) (conventional takeoff), 12,300 lb (5,580 kg) (VTOL)
- Powerplant: 2× [Vous devez être inscrit et connecté pour voir ce lien] J85-GE-5 turbojets, 2,658 lbf (11.85 kN) each
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Re: Ryan XV-5 Vertifan
par Spirell Lun 12 Juil 2010, 13:12
Performance
- [Vous devez être inscrit et connecté pour voir ce lien]: 547 mph (880 km/h)
- [Vous devez être inscrit et connecté pour voir ce lien]: 1,000 mi (1,610 km)
- [Vous devez être inscrit et connecté pour voir ce lien]: 40,000 ft (12,200 m)
- [Vous devez être inscrit et connecté pour voir ce lien]: 8,000 ft/min (40.7 m/s)
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