Bell X 1
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Re: Bell X 1
Disposition
Aircraft #46-062 is currently on display in the Milestones of Flight gallery of the [Vous devez être inscrit et connecté pour voir ce lien]
in [Vous devez être inscrit et connecté pour voir ce lien], alongside the [Vous devez être inscrit et connecté pour voir ce lien] and [Vous devez être inscrit et connecté pour voir ce lien].
Aircraft #46-063, now the X-1E, is on display in front of the [Vous devez être inscrit et connecté pour voir ce lien] headquarters building.
Aircraft #46-062 is currently on display in the Milestones of Flight gallery of the [Vous devez être inscrit et connecté pour voir ce lien]
in [Vous devez être inscrit et connecté pour voir ce lien], alongside the [Vous devez être inscrit et connecté pour voir ce lien] and [Vous devez être inscrit et connecté pour voir ce lien].
Aircraft #46-063, now the X-1E, is on display in front of the [Vous devez être inscrit et connecté pour voir ce lien] headquarters building.
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- Messages : 596
Re: Bell X 1
Variants
Later variants of the X-1 were built to test different aspects of supersonic flight; one of these, the X-1A, with Yeager at the controls, inadvertently demonstrated a very dangerous characteristic of fast (Mach2 plus) supersonic flight: [Vous devez être inscrit et connecté pour voir ce lien].
Only Yeager's skills as an aviator prevented him from dying that day; later [Vous devez être inscrit et connecté pour voir ce lien] would die testing the [Vous devez être inscrit et connecté pour voir ce lien]
under similar circumstances.
Later variants of the X-1 were built to test different aspects of supersonic flight; one of these, the X-1A, with Yeager at the controls, inadvertently demonstrated a very dangerous characteristic of fast (Mach2 plus) supersonic flight: [Vous devez être inscrit et connecté pour voir ce lien].
Only Yeager's skills as an aviator prevented him from dying that day; later [Vous devez être inscrit et connecté pour voir ce lien] would die testing the [Vous devez être inscrit et connecté pour voir ce lien]
under similar circumstances.
Hedel2- CLUB
- Messages : 596
Re: Bell X 1
X-1A
Ordered by the Air Force on 2 April 1948, the X-1A (serial 48-1384) was intended to investigate aerodynamic phenomena at speeds above Mach 2 (681 m/s, 2,451 km/h) and altitudes greater than 90,000 ft (27 km), specifically focusing on dynamic stability and air loads.
Longer and heavier than the original X-1, with a bubble canopy for better vision, the X-1A was powered by the same Reaction Motors XLR-11 rocket engine.
The aircraft first flew, unpowered, on 14 February 1953 at Edwards AFB, with the first powered flight on 21 February.
Both flights were piloted by Bell test pilot [Vous devez être inscrit et connecté pour voir ce lien].
Ordered by the Air Force on 2 April 1948, the X-1A (serial 48-1384) was intended to investigate aerodynamic phenomena at speeds above Mach 2 (681 m/s, 2,451 km/h) and altitudes greater than 90,000 ft (27 km), specifically focusing on dynamic stability and air loads.
Longer and heavier than the original X-1, with a bubble canopy for better vision, the X-1A was powered by the same Reaction Motors XLR-11 rocket engine.
The aircraft first flew, unpowered, on 14 February 1953 at Edwards AFB, with the first powered flight on 21 February.
Both flights were piloted by Bell test pilot [Vous devez être inscrit et connecté pour voir ce lien].
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- Messages : 596
Re: Bell X 1
After [Vous devez être inscrit et connecté pour voir ce lien] started its high-speed testing with the [Vous devez être inscrit et connecté pour voir ce lien], culminating in [Vous devez être inscrit et connecté pour voir ce lien] achieving Mach
2.005 on 20 November 1953, the Air Force started a series of tests with the X-1A, which the test pilot of the series, [Vous devez être inscrit et connecté pour voir ce lien], named "Operation NACA Weep".
These culminated on 12 December 1953, when Yeager achieved an altitude of 74,700 feet (22,770 m) and a new air speed record of Mach 2.44 (equal to 1620 mph, 724.5 m/s, 2608 km/h at that altitude).
Unlike Crossfield in the Skyrocket, Yeager achieved that in level flight.
2.005 on 20 November 1953, the Air Force started a series of tests with the X-1A, which the test pilot of the series, [Vous devez être inscrit et connecté pour voir ce lien], named "Operation NACA Weep".
These culminated on 12 December 1953, when Yeager achieved an altitude of 74,700 feet (22,770 m) and a new air speed record of Mach 2.44 (equal to 1620 mph, 724.5 m/s, 2608 km/h at that altitude).
Unlike Crossfield in the Skyrocket, Yeager achieved that in level flight.
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- Messages : 596
Re: Bell X 1
Shortly after, the aircraft spun out of control, due to the then not yet understood phenomenon of [Vous devez être inscrit et connecté pour voir ce lien].
The X-1 dropped from maximum altitude to 25,000 feet (7,620 m), exposing the pilot to accelerations of up to 8g,
during which Yeager broke the canopy with his helmet before regaining control.
The X-1 dropped from maximum altitude to 25,000 feet (7,620 m), exposing the pilot to accelerations of up to 8g,
during which Yeager broke the canopy with his helmet before regaining control.
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- Messages : 596
Re: Bell X 1
The aircraft was transferred to NACA in September 1954.
Following modifications, including the installation of an ejection seat, the aircraft was lost on 8 August 1955 while being prepared for launch from the RB-50 mothership, becoming the first of many early X-planes that would be lost to explosions.
Following modifications, including the installation of an ejection seat, the aircraft was lost on 8 August 1955 while being prepared for launch from the RB-50 mothership, becoming the first of many early X-planes that would be lost to explosions.
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Re: Bell X 1
X-1B
The X-1B (serial 48-1385) was equipped with [Vous devez être inscrit et connecté pour voir ce lien] instrumentation for thermal research (over 300 thermal probes were installed on its surface).
It was similar to the X-1A except for having a slightly different wing.
The X-1B was used for high speed research by the US Air Force starting from October 1954 prior to being turned over to the NACA in January 1955.
NACA continued to fly the aircraft until January 1958 when cracks in the fuel tanks forced its grounding.
The X-1B (serial 48-1385) was equipped with [Vous devez être inscrit et connecté pour voir ce lien] instrumentation for thermal research (over 300 thermal probes were installed on its surface).
It was similar to the X-1A except for having a slightly different wing.
The X-1B was used for high speed research by the US Air Force starting from October 1954 prior to being turned over to the NACA in January 1955.
NACA continued to fly the aircraft until January 1958 when cracks in the fuel tanks forced its grounding.
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- Messages : 596
Re: Bell X 1
The X-1B completed a total of 27 flights. A notable achievement was the installation of a system of small reaction rockets used for directional control, making the X-1B the first aircraft to fly with this sophisticated control system, later used in the [Vous devez être inscrit et connecté pour voir ce lien].
The X-1B is now at the [Vous devez être inscrit et connecté pour voir ce lien], [Vous devez être inscrit et connecté pour voir ce lien] at [Vous devez être inscrit et connecté pour voir ce lien], where it is displayed in the Museum's Research & Development Hanger.
The X-1B is now at the [Vous devez être inscrit et connecté pour voir ce lien], [Vous devez être inscrit et connecté pour voir ce lien] at [Vous devez être inscrit et connecté pour voir ce lien], where it is displayed in the Museum's Research & Development Hanger.
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- Messages : 596
Re: Bell X 1
X-1C
The X-1C (serial 48-1387) was intended to test armaments and munitions in the high transonic and supersonic flight regimes.
It was canceled while still in the mock-up stage, as the birth of transonic and supersonic-capable aircraft like
the North American [Vous devez être inscrit et connecté pour voir ce lien] and the North American [Vous devez être inscrit et connecté pour voir ce lien] eliminated the need for a dedicated experimental test platform.
The X-1C (serial 48-1387) was intended to test armaments and munitions in the high transonic and supersonic flight regimes.
It was canceled while still in the mock-up stage, as the birth of transonic and supersonic-capable aircraft like
the North American [Vous devez être inscrit et connecté pour voir ce lien] and the North American [Vous devez être inscrit et connecté pour voir ce lien] eliminated the need for a dedicated experimental test platform.
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- Messages : 596
Re: Bell X 1
X-1D
The X-1D (serial 48-1386) was the first of the second generation of supersonic rocket planes. Flown from an [Vous devez être inscrit et connecté pour voir ce lien] (s/n #46-006), it was to be used for heat transfer research.
The X-1D was equipped with a new low-pressure fuel system and a slightly increased fuel capacity.
There were also some minor changes to the avionics set
On 24 July 1951, with Bell test pilot Jean Ziegler at the controls, the X-1D was launched over [Vous devez être inscrit et connecté pour voir ce lien], on what was to become the only successful flight of its career.
The X-1D (serial 48-1386) was the first of the second generation of supersonic rocket planes. Flown from an [Vous devez être inscrit et connecté pour voir ce lien] (s/n #46-006), it was to be used for heat transfer research.
The X-1D was equipped with a new low-pressure fuel system and a slightly increased fuel capacity.
There were also some minor changes to the avionics set
On 24 July 1951, with Bell test pilot Jean Ziegler at the controls, the X-1D was launched over [Vous devez être inscrit et connecté pour voir ce lien], on what was to become the only successful flight of its career.
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- Messages : 596
Re: Bell X 1
The unpowered glide was completed after a nine-minute descent, but upon landing, the nose gear failed and the aircraft slid ungracefully to a stop.
Repairs took several weeks to complete and a second flight was scheduled for mid-August.
On 22 August 1951, the X-1D was lost in a fuel explosion during preparations for the first powered flight.
The aircraft was destroyed upon impact after it was jettisoned from its EB-50A mothership.
Repairs took several weeks to complete and a second flight was scheduled for mid-August.
On 22 August 1951, the X-1D was lost in a fuel explosion during preparations for the first powered flight.
The aircraft was destroyed upon impact after it was jettisoned from its EB-50A mothership.
Hedel2- CLUB
- Messages : 596
Re: Bell X 1
X-1E
The X-1E was the result of a reconstruction of the X-1-2 (serial 46-063), in order to pursue the goals originally set out for the X-1D and X-1-3 (serial 46-064), both lost in explosions in 1951.
The cause of the mysterious explosions was finally traced to the use of Ulmer leather gaskets impregnated with [Vous devez être inscrit et connecté pour voir ce lien] (TCP), a leather treatment, which was used in the [Vous devez être inscrit et connecté pour voir ce lien] plumbing.
The X-1E was the result of a reconstruction of the X-1-2 (serial 46-063), in order to pursue the goals originally set out for the X-1D and X-1-3 (serial 46-064), both lost in explosions in 1951.
The cause of the mysterious explosions was finally traced to the use of Ulmer leather gaskets impregnated with [Vous devez être inscrit et connecté pour voir ce lien] (TCP), a leather treatment, which was used in the [Vous devez être inscrit et connecté pour voir ce lien] plumbing.
Hedel2- CLUB
- Messages : 596
Re: Bell X 1
The changes included:
A turbopump fuel feed system, which eliminated the high-pressure nitrogen fuel system used in '062 and '063.
(Concerns about metal fatigue in the nitrogen fuel system resulted in the grounding of the X-1-2 after its 54th flight in its original configuration.)
A turbopump fuel feed system, which eliminated the high-pressure nitrogen fuel system used in '062 and '063.
(Concerns about metal fatigue in the nitrogen fuel system resulted in the grounding of the X-1-2 after its 54th flight in its original configuration.)
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- Messages : 596
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