Forwarded from F-84 collection
XF91 Thunderceptor
The xf91 design was one of two swept-wing modifications based on the original Republic F-84 Thunderjet, the other being the Republic F-84F Thunderstreak which was developed later.
A unique feature of the Thunderceptor was its unusual inverse tapered wing, in which the chord length increased along the wing span from the root to the tip, the opposite of conventional swept wing designs.
The wings were built to have considerably more chord at the tip than root, allowing them to generate more lift. This neatly addressed the problem of Sabre dance by delaying the point of stall on the tip to that of the entire wing.
Another design change was the ability to vary the angle of incidence of the wing as a whole, tilting it up for during takeoff and landing. This allowed the fuselage to remain closer to level while landing, greatly improving visibility.
(The second prototype had a V tail)
J47-GE-7 jet and XLR-11-RM9 rocket engine
Max speed Mach 1.49
build 2 prototypes
Build in 1949, first flight 1951
The xf91 design was one of two swept-wing modifications based on the original Republic F-84 Thunderjet, the other being the Republic F-84F Thunderstreak which was developed later.
A unique feature of the Thunderceptor was its unusual inverse tapered wing, in which the chord length increased along the wing span from the root to the tip, the opposite of conventional swept wing designs.
The wings were built to have considerably more chord at the tip than root, allowing them to generate more lift. This neatly addressed the problem of Sabre dance by delaying the point of stall on the tip to that of the entire wing.
Another design change was the ability to vary the angle of incidence of the wing as a whole, tilting it up for during takeoff and landing. This allowed the fuselage to remain closer to level while landing, greatly improving visibility.
(The second prototype had a V tail)
J47-GE-7 jet and XLR-11-RM9 rocket engine
Max speed Mach 1.49
build 2 prototypes
Build in 1949, first flight 1951
First prototype (serial 82-0062, c/n GG1001, registered N4416T) of the Northop F-20 Tigershark in Pakistan sporting PAF markings during evaluation by PAF. PAF test pilot was Group Captain Abbas Mirza.
This Tigershark crashed during demonstration in South Korea at Suwon Airbase 10th Oct 1984, killing Northrop pilot Darrell Cornell. Apparently due G-LOC.
This Tigershark crashed during demonstration in South Korea at Suwon Airbase 10th Oct 1984, killing Northrop pilot Darrell Cornell. Apparently due G-LOC.
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Dassault Mirage III Balzac: an experimental VTOL version of the Mirage III. It was the only VTOL capable aircraft to fly faster than Mach 2.
Planes
Blue Angels F-18 Hornets performing a "Fan Break" (Echelon Parade)
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Blue Angels introduced in the style of Ace Combat Zero
Forwarded from F-84 collection
XF-84H
Two F-84Fs were converted into experimental aircraft. Each was fitted with an Allison XT40-A-1 turboprop engine of 5,850 shaft horsepower (4,365 kW) driving a supersonic propeller. Ground crews dubbed the XF-84H the Thunderscreech due to its extreme noise output
Two F-84Fs were converted into experimental aircraft. Each was fitted with an Allison XT40-A-1 turboprop engine of 5,850 shaft horsepower (4,365 kW) driving a supersonic propeller. Ground crews dubbed the XF-84H the Thunderscreech due to its extreme noise output
Forwarded from Captain Kabooms militaria
Soviet TU-95V dropping Tsar Bomba, with an explosive yield of 50 megatons it is the most powerful nuclear weapon ever detonated.
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Dassault Mirage aircraft of the Pakistan Air Force
Planes
An Afghan Air Force Mig-21bis, which defected and landed in Peshawar in September, 1989 during the Afghan crises. Now preserved at the Pakistan Air Force museum in Karachi.
A MiG-21 and a Su-22 of the Afghan Airforce stand at an airbase in Pakistan after defecting during the Soviet-Afghan war, 1986