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Contents

   



(Top)
 


1 Development and testing  





2 Flights  





3 Specifications  





4 Related content  



4.1  Comparable aircraft  





4.2  Winged Gemini  







5 References  














ASSET (spacecraft)






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From Wikipedia, the free encyclopedia
 

(Redirected from ASSET (spaceplane))

ASSET (Aerothermodynamic Elastic Structural Systems Environmental Tests)
Preserved ASSET vehicle at USAF Museum, Dayton, Ohio
Functionexperimental US space project involving the testing of an uncrewed sub-scale reentry vehicle.
ManufacturerMcDonnell Aircraft
Country of originUnited States
Size
Height5 ft 9 in (1.75 m)
Width4 ft 7 in (1.40 m)
Mass1,190 lb (540 kg)
Launch history
StatusRetired
Launch sitesCape Canaveral Air Force Station Space Launch Complex 17
Total launches6
Success(es)1
Partial failure(s)5 (vehicles not recovered though flights were successful)
First flight18 September 1963
Last flight23 February 1965
ASSET pre-launch checkout
ASSET–Thor combination on pad 17B

ASSET, or Aerothermodynamic Elastic Structural Systems Environmental Tests was an experimental US space project involving the testing of an uncrewed sub-scale reentry vehicle.

Development and testing

[edit]

Begun in 1960, ASSET was originally designed to verify the superalloy heat shield of the X-20 Dyna-Soar prior to full-scale crewed flights. The vehicle's biconic shape and low delta wing were intended to represent Dyna-Soar's forward nose section, where the aerodynamic heating would be the most intense; in excess of an estimated 2200 °C (4000 °F) at the nose cap. Following the X-20 program's cancellation in December 1963, completed ASSET vehicles were used in reentry heating and structural investigations with hopes that data gathered would be useful for the development of future space vehicles, such as the Space Shuttle.[1]

Built by McDonnell, each vehicle was launched on a suborbital trajectory from Cape Canaveral's Pad 17B at speeds of up to 6000 m/s before making a water landing in the South Atlantic near Ascension Island. Originally, a Scout launch vehicle had been planned for the tests, but this was changed after a large surplus of Thor and Thor-Delta missiles (returned from deployment in the United Kingdom) became available.[2]

Of the six vehicles built, only one was successfully recovered and is currently on display at the National Museum of the United States Air ForceinDayton, Ohio.[2]

Flights

[edit]
Mission Launch date Apogee Max. speed Result Disposition
ASSET 1 September 18, 1963 62 km 4,906 m/s Survived reentry; flotation equipment malfunctioned, preventing planned recovery. Sunk in Atlantic.[2]
ASSET 2 March 24, 1964 55 km Launch vehicle upper stage malfunction; vehicle self-destruct mechanism activated post-separation. Mission failed. Destroyed.[2]
ASSET 3 July 22, 1964 71 km 5,500 m/s Survived reentry; all mission goals met. Recovered 12 hours after launch. Preserved.[2]
ASSET 4 October 28, 1964 50 km 4,000 m/s Survived reentry; all mission goals met; recovery not planned. Sunk in Atlantic.[2]
ASSET 5 December 9, 1964 53 km 4,000 m/s Survived reentry; all mission goals met; recovery not planned. Sunk in Atlantic.[2]
ASSET 6 February 23, 1965 70 km 6,000 m/s Survived reentry; flotation equipment malfunctioned, preventing planned recovery. Sunk in Atlantic.[2]

Specifications

[edit]
ASSET 3-view
[edit]

Comparable aircraft

[edit]

Winged Gemini

[edit]

In the mid-1960s, McDonnell proposed a variant of the Gemini capsule that retained the original spacecraft's internal subsystems and crew compartment, but dispensed with the tail-first ballistic reentry, parachute recovery and water landing.

Instead, the vehicle would be heavily modified externally into an ASSET-like lifting-reentry configuration. Post-reentry, a pair of stowed swing-wings would be deployed, giving the spacecraft sufficient lift-to-drag ratio to make a piloted glide landing on a concrete runway using a skid-type landing gear (reinstated from the planned, but cancelled paraglider landing system), much like the Space Shuttle.

According to Mark Wade's Encyclopedia Astronautica, the intent seems to have been to field a crewed military spaceplane at a minimal cost following the cancellation of the Dyna-Soar program.[3]

References

[edit]
  1. ^ Krebs, Gunter D. "ASSET-ASV 1, 2, 3, 4". Gunter's Space Page. Retrieved May 21, 2023.
  • ^ a b c d e f g h "ASSET". Encyclopedia Astronautica. Archived from the original on April 25, 2002.
  • ^ "Winged Gemini at Encyclopedia Astronautica". Archived from the original on February 28, 2002.

  • Retrieved from "https://en.wikipedia.org/w/index.php?title=ASSET_(spacecraft)&oldid=1156094799"

    Categories: 
    Glider aircraft
    Lifting bodies
    Spaceplanes
    1960s United States experimental aircraft
    Unmanned aerial vehicles of the United States
     



    This page was last edited on 21 May 2023, at 05:09 (UTC).

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