Encyclopedia Astronautica
Hopi Dart


American sounding rocket. Single stage vehicle consisting of a Hopi III and an unpowered dart.

The second stage was an inert dart, 0.035 meters in diameter and 1.128 meters long that contained aluminized Mylar chaff and the payload ejection system. At first stage burnout (2.4 seconds), differential drag caused separation of the first stage from the dart. The dart then coasted to an apogee of 85 kilometers. The payload ejection from the dart was designed to occur at approximately T+ 135 seconds. The Hopi-Dart was launched from a rail attached to an I-Beam structure.

An FPS-16 radar skin tracked the Dart and then the chaff payload from apogee to an altitude of 70 km or loss of signal. Data were obtained by radar printout of time, elevation and azimuth angles, and slant range position, and also by reducing the radar plotting board which was a graphical location of the chaff by altitude, time, and position. Only three of this type system were fired at Cape Kennedy.

Payload: 4.99 kg (11.00 lb) to a 115.8 km altitude. Failures: 4. First Fail Date: 1963-02-28. Last Fail Date: 1963-08-22.

Gross mass: 38 kg (84 lb).
Payload: 4.99 kg (11.00 lb).
Height: 3.32 m (10.88 ft).
Diameter: 0.11 m (0.37 ft).
Span: 0.45 m (1.47 ft).
Apogee: 116 km (72 mi).
First Launch: 1963.02.28.
Last Launch: 1964.11.23.
Number: 22 .

More... - Chronology...


Associated Countries
See also
  • Hopi The Hopi-Dart vehicle consisted of a Hopi III booster as first stage, and an unpowered dart as second stage. A boosted version of the configuration used a Kiva motor as the first stage. More...

Associated Manufacturers and Agencies
  • RPI American manufacturer of rocket engines and rockets. RPI, USA. More...

Associated Launch Sites
  • Wallops Island Small NASA launch site for sounding rocket launches and occasional Scout launches to orbit. Air launches are conducted from the Drop Zone Wallops Island, 37.00 N 72.0 W. With the last orbital launch in 1985 and the decline in sounding rocket launches, Wallops fell into near-disuse as a launch center. Its fortunes revised with the establishment of Mid-Atlantic Regional Spaceport in 2005 and orbital launches resumed in 2010. More...
  • Cape Canaveral America's largest launch center, used for all manned launches. Today only six of the 40 launch complexes built here remain in use. Located at or near Cape Canaveral are the Kennedy Space Center on Merritt Island, used by NASA for Saturn V and Space Shuttle launches; Patrick AFB on Cape Canaveral itself, operated the US Department of Defense and handling most other launches; the commercial Spaceport Florida; the air-launched launch vehicle and missile Drop Zone off Mayport, Florida, located at 29.00 N 79.00 W, and an offshore submarine-launched ballistic missile launch area. All of these take advantage of the extensive down-range tracking facilities that once extended from the Cape, through the Caribbean, South Atlantic, and to South Africa and the Indian Ocean. More...
  • Tonopah Sounding rocket and test vehicle launch site. Conducted launches in support of US nuclear weapons development programs. Known to have been used for 93 launches from 1957 to 1986, reaching up to 270 kilometers altitude. More...

Associated Stages
  • Hopi III Solid rocket stage. 28.00 kN (6,295 lbf) thrust. Mass 30 kg (66 lb). More...

Hopi Dart Chronology


1963 February 28 - . Launch Site: Wallops Island. LV Family: Hopi. Launch Vehicle: Hopi Dart. LV Configuration: Hopi Dart F1. FAILURE: Failure.
1963 March 27 - . Launch Site: Wallops Island. LV Family: Hopi. Launch Vehicle: Hopi Dart. LV Configuration: Hopi Dart F2. FAILURE: Failure.
1963 April 25 - . Launch Site: Wallops Island. LV Family: Hopi. Launch Vehicle: Hopi Dart. LV Configuration: Hopi Dart F3. FAILURE: Failure.
1963 May 9 - . Launch Site: Wallops Island. LV Family: Hopi. Launch Vehicle: Hopi Dart. LV Configuration: Hopi Dart F4.
1963 May 10 - . Launch Site: Wallops Island. LV Family: Hopi. Launch Vehicle: Hopi Dart. LV Configuration: Hopi Dart F5.
1963 June 5 - . Launch Site: Wallops Island. LV Family: Hopi. Launch Vehicle: Hopi Dart. LV Configuration: Hopi Dart F6.
1963 July 18 - . Launch Site: Wallops Island. LV Family: Hopi. Launch Vehicle: Hopi Dart. LV Configuration: Hopi Dart F7.
1963 August 7 - . Launch Site: Wallops Island. LV Family: Hopi. Launch Vehicle: Hopi Dart. LV Configuration: Hopi Dart F8.
1963 August 9 - . Launch Site: Wallops Island. LV Family: Hopi. Launch Vehicle: Hopi Dart. LV Configuration: Hopi Dart F9.
1963 August 22 - . Launch Site: Wallops Island. LV Family: Hopi. Launch Vehicle: Hopi Dart. LV Configuration: Hopi Dart F10.
1963 August 22 - . Launch Site: Wallops Island. LV Family: Hopi. Launch Vehicle: Hopi Dart. LV Configuration: Hopi Dart F11. FAILURE: Failure.
1963 October 29 - . Launch Site: Tonopah. LV Family: Hopi. Launch Vehicle: Hopi Dart. LV Configuration: Hopi Dart F12.
1963 October 29 - . Launch Site: Tonopah. LV Family: Hopi. Launch Vehicle: Hopi Dart. LV Configuration: Hopi Dart F13.
1963 October 29 - . Launch Site: Tonopah. LV Family: Hopi. Launch Vehicle: Hopi Dart. LV Configuration: Hopi Dart F14.
1964 February 13 - . 18:28 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC43. LV Family: Hopi. Launch Vehicle: Hopi Dart.
1964 February 13 - . 21:45 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC43. LV Family: Hopi. Launch Vehicle: Hopi Dart.
1964 February 14 - . 18:30 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC43. Launch Vehicle: Hopi Dart. LV Configuration: Hopi Dart F17.
  • - . Nation: USA. Apogee: 90 km (55 mi).

1964 February 14 - . 21:03 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC43. LV Family: Hopi. Launch Vehicle: Hopi Dart.
1964 October 14 - . Launch Site: Wallops Island. LV Family: Hopi. Launch Vehicle: Hopi Dart. LV Configuration: Hopi Dart F19.
1964 October 14 - . Launch Site: Wallops Island. LV Family: Hopi. Launch Vehicle: Hopi Dart. LV Configuration: Hopi Dart F20.
1964 November 23 - . Launch Site: Wallops Island. LV Family: Hopi. Launch Vehicle: Hopi Dart. LV Configuration: Hopi Dart F22.
1964 November 23 - . Launch Site: Wallops Island. LV Family: Hopi. Launch Vehicle: Hopi Dart. LV Configuration: Hopi Dart F21.
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