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Hopi Dart
Part of Hopi Family
American sounding rocket, flown by NASA Huntsville on aeronomy missions 1963-1964. The Hopi-Dart vehicle consisted of a Hopi III booster as first stage, and an unpowered dart as second stage.

Status: Retired 1964. First Launch: 1963-02-28. Last Launch: 1964-11-23. Number: 22 . Payload: 4.99 kg (11.00 lb). Gross mass: 38 kg (84 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).

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.



Country: USA. Launch Sites: Wallops Island, Cape Canaveral, Tonopah, Cape Canaveral LC43. Stages: Hopi 2.4KS5600. Agency: RPI.

1963 February 28 - . Launch Site: Wallops Island. LV Family: Hopi. Launch Vehicle: Hopi Dart. FAILURE: Failure.
1963 March 27 - . Launch Site: Wallops Island. LV Family: Hopi. Launch Vehicle: Hopi Dart. FAILURE: Failure.
1963 April 25 - . Launch Site: Wallops Island. LV Family: Hopi. Launch Vehicle: Hopi Dart. FAILURE: Failure.
1963 May 9 - . Launch Site: Wallops Island. LV Family: Hopi. Launch Vehicle: Hopi Dart.
1963 May 10 - . Launch Site: Wallops Island. LV Family: Hopi. Launch Vehicle: Hopi Dart.
1963 June 5 - . Launch Site: Wallops Island. LV Family: Hopi. Launch Vehicle: Hopi Dart.
1963 July 18 - . Launch Site: Wallops Island. LV Family: Hopi. Launch Vehicle: Hopi Dart.
1963 August 7 - . Launch Site: Wallops Island. LV Family: Hopi. Launch Vehicle: Hopi Dart.
1963 August 9 - . Launch Site: Wallops Island. LV Family: Hopi. Launch Vehicle: Hopi Dart.
1963 August 22 - . Launch Site: Wallops Island. LV Family: Hopi. Launch Vehicle: Hopi Dart. FAILURE: Failure.
1963 August 22 - . Launch Site: Wallops Island. LV Family: Hopi. Launch Vehicle: Hopi Dart.
1963 October 29 - . Launch Site: Tonopah. LV Family: Hopi. Launch Vehicle: Hopi Dart.
1963 October 29 - . Launch Site: Tonopah. LV Family: Hopi. Launch Vehicle: Hopi Dart.
1963 October 29 - . Launch Site: Tonopah. LV Family: Hopi. Launch Vehicle: Hopi Dart.
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. LV Family: Hopi. Launch Vehicle: Hopi Dart.
  • 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.
1964 October 14 - . Launch Site: Wallops Island. LV Family: Hopi. Launch Vehicle: Hopi Dart.
1964 November 23 - . Launch Site: Wallops Island. LV Family: Hopi. Launch Vehicle: Hopi Dart.
1964 November 23 - . Launch Site: Wallops Island. LV Family: Hopi. Launch Vehicle: Hopi Dart.

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