avia.wikisort.org - Glider

The Boeing X-40A Space Maneuver Vehicle was a test platform for the X-37 Future-X Reusable Launch Vehicle.

X-40A
Boeing X-40A on a descent glide slope
Role	Glide test vehicle Type of aircraft
National origin	United States
Manufacturer	Boeing Phantom Works
First flight	August 11, 1998 (dropped by UH-60 Black Hawk)[1][2][3]
Status	Retired May 2001
Primary users	AFRL NASA
Number built	1

History

The unpiloted X-40 was built to 85% scale to test aerodynamics and navigation of the X-37 Future-X Reusable Launch Vehicle project.

After the first drop test in August 1998 the vehicle was transferred to NASA, which modified it. Between April 4 and May 19, 2001, the vehicle successfully conducted seven free flights.[3] In 2001 it successfully demonstrated the glide capabilities of the X-37's fat-bodied, short-winged design and validated the proposed guidance system.

Testing

The first X-40 drop test occurred at Holloman AFB, New Mexico on August 11, 1998 at 06:59. This was a joint Air Force/Boeing project known as Space Maneuver Vehicle. It was released from an altitude of approximately 9,200 feet (2,800 m) and 2.5 miles (4.0 km) away from the end of Runway 04 by a UH-60 Black Hawk helicopter[1][2][3] (later tests used the CH-47 Chinook helicopter).[2][3] The vehicle dove to the runway in an approach similar to the Space Shuttle's, flared, and landed left of the runway centerline. Its drag chutes successfully deployed, and the vehicle tracked to within 7 feet (2.1 m) of the centerline and stopped at a distance of slightly more than 7,000 feet (2,100 m).

Specifications (X-40)

General characteristics

• Length: 21 ft (6.4 m)
• Wingspan: 11 ft (3.4 m)
• Height: 7 ft 6 in (2.29 m)
• Empty weight: 2,500 lb (1,134 kg)
• Useful load: 1,200 lb (540 kg)

Performance

• Maximum speed: 300 mph (480 km/h, 260 kn)

Avionics
Honeywell 12-channel Space Integrated GPS/INS (SIGI) system

See also

Related development

• Boeing X-37

Related lists

• List of experimental aircraft

References

External links

• NASA Dryden X-40A Image Gallery
• X-40A Test Flight, Boeing press release
• X-40 Space Maneuver Vehicle Integrated Tech Testbed at FAS.org
• X-40 Space Maneuver Vehicle (SMV) at GlobalSecurity.org
• Boeing X-37 / X-40 page at Designation-Systems.Net

На других языках

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- [en] Boeing X-40

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[it] Boeing X-40

L'X-40 o X40-A è un velivolo sperimentale senza pilota destinato al volo spaziale ed il rientro a terra. È una versione più piccola dell'X-37 costruito per testarne l'aerodinamica e altre caratteristiche. Una volta messo in quota può volare ed atterrare autonomamente in modo da essere riutilizzato per voli successivi. Il progetto è sviluppato dalla NASA in collaborazione con la Boeing.

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