Time Period: World War II
Country of Origin: United States
Type: Prototypes and Experimental (Rocket Plane)
Manufacturer: Bell Aircraft
Bell X-1 Aircraft Overview
The Bell X-1 was an American groundbreaking experimental aircraft developed by Bell Aircraft Corporation in the 1940s. It holds a significant place in aviation history as the first aircraft to break the sound barrier in level flight. The X-1, also known as the “Glamorous Glennis” after the wife of its pilot Chuck Yeager, was designed specifically to achieve supersonic speeds.
The X-1 featured a distinctive bullet-shaped fuselage, swept wings, and a rocket engine. On October 14, 1947, with Yeager at the controls, the X-1 was dropped from the bomb bay of a modified B-29 Superfortress and reached a top speed of Mach 1.06, equivalent to about 700 miles per hour, breaking the sound barrier.
This historic achievement shattered long-held beliefs about the limitations of aircraft speed and opened the doors to supersonic flight. The success of the X-1 paved the way for further research and development in high-speed flight, leading to advancements in aerodynamics, propulsion systems, and materials that continue to shape modern aviation.
The Bell X-1 and its pilot, Chuck Yeager, became synonymous with daring and technological innovation, marking a significant milestone in the history of aviation and inspiring generations of engineers and aviators to reach new heights in flight.
Bell X-1 Specifications
- Crew: 1
- Length: 30 ft 11 in (9.42 m)
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- X-1A, X-1B, X-1D: 35 ft 8 in (10.87 m)
- X-1C: 35.0 ft (10.67 m)
- Wingspan: 28 ft 0 in (8.53 m)
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- X-1E: 22 ft 10 in (6.96 m)
- Height: 10 ft 10 in (3.30 m)
- Wing area: 130 sq ft (12 m2) ⠀
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- X-1E 115 sq ft (10.7 m2)
- Airfoil: #1 NACA 65-110 (10% thickness)
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- #2, X-1A, X-1B, X-1D NACA 65-108 (8% thickness)
- X-1E NACA 64A004
- Empty weight: 7,000 lb (3,175 kg)
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- X-1A, X-1B, X-1C, X-1D: 6,880 lb (3,120 kg)
- X-1E: 6,850 lb (3,110 kg)
- Gross weight: 12,250 lb (5,557 kg)
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- X-1A, X-1B, X-1C, X-1D: 16,487 lb (7,478 kg)
- X-1E: 14,750 lb (6,690 kg)
- Powerplant: 1 × Reaction Motors XLR11-RM-3 4-chamber liquid-fuelled rocket engine, 6,000 lbf (27 kN) thrust
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- X-1E: Reaction Motors RMI LR-8-RM-5 6,000 lbf (27 kN)
Bell X-1 Performance
- Maximum speed: 1,612 mph (2,594 km/h, 1,401 kn)
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- X-1E: 1,450 mph (1,260 kn; 2,330 km/h)
- Maximum speed: Mach 2.44
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- X-1E: M2.24
- Endurance: 5 minutes powered flight
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- X-1A, X-1B, X-1C, X-1D: 4 minutes 40 seconds powered flight
- X-1E: 4 minutes 45 seconds powered flight
- Service ceiling: 70,000 ft (21,000 m)
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- X-1A, X-1B, X-1C, X-1D: 90,000 ft (27,000 m)
- X-1E: 75,000 ft (23,000 m)