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Hydac
Lockheed solid rocket motor. Upper stage for several sounding rockets and test vehicles of 1963-1988.

AKA: Talos Sergeant Hydac-3. Status: Retired 1988. Thrust: 45.50 kN (10,229 lbf). Gross mass: 253 kg (557 lb). Unfuelled mass: 70 kg (154 lb). Burn time: 9.40 s. Height: 3.73 m (12.23 ft). Diameter: 0.23 m (0.75 ft).

Lockheed produced the Hydac-Javelin 2-Javelin 3-Sirocco family of sounding rocket, test vehicle, and sled solid rocket motors from the 1960's. The Hydac and Javelin 3 motors were used as single-stage motors and in various second, third, and fourth-stage configurations with the Terrier, Honest John and Nike systems. The Sirocco unit was used primarily as a single-stage vehicle, while the Javelin 2 was a successful sled and sounding rocket.

The HYDAC rocket motor itself was 9 inches in diameter, 147 inches in length, and contained 410 pounds of PBAA propellant. The propellant composition was 16 percent aluminum with an average particle size of 6 microns, 60 percent coarse ammonium perchlorate with an average particle size of 200 microns, and 8 percent fine ammonium perchlorate with an average particle size of 8 microns. The forward portion was a single perforation cylinder; the aft portion was a six-point star. The HYDAC had a conventional deLaval nozzle.



Subtopics

Javelin 3 engine Null

Country: USA. Launch Vehicles: HJ Nike Hydac, Terrier Hydac, Nike Hydac, Sergeant Hydac, HJ Hydac, Talos Sergeant Hydac. Propellants: Solid. Stages: Hydac. Agency: Aerojet.

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