Hydra 70 Rocket:

Recent Performance Has Improved

NSIAD-99-126R: Published: Apr 15, 1999. Publicly Released: Apr 15, 1999.

Additional Materials:

Contact:

Mark E. Gebicke
(202) 512-4126
contact@gao.gov

 

Office of Public Affairs
(202) 512-4800
youngc1@gao.gov

Pursuant to a congressional request, GAO provided information on the Hydra 70 rocket, focusing on the: (1) problem of early motor blow (EMB); (2) actions the military services have taken to identify and eliminate its causes; and (3) rocket's present performance.

GAO noted that: (1) the services acted effectively to address the problem of EMBs; (2) after three EMBs caused damage to aircraft in 1992-93, the Naval Surface Warfare Center, as the design agent for the rocket, launched an independent investigation to determine their cause; (3) subsequently, the Army Industrial Operations Command, as program manager for the rocket, identified corrective actions; (4) these actions included: (a) improving the inspection process; (b) identifying authorized procedures for making changes to the rocket manufacturing process; (c) redesigning the die used to form the rocket's propellant; (d) establishing criteria to remove from inventory any propellant grain dropped during handling; and (e) inspecting rockets already in inventory to screen out those that contain defective propellant grain; (5) the services began to implement these solutions in 1995, and, as of March 1999, they have reported only one EMB; (6) service officials estimate that the services fire about 270,000 Hydra 70 rockets each year; and (7) Hydra 70 program officials told GAO that the probability of an EMB occurring now meets the standard of one chance in a million.

Dec 16, 2014

Dec 12, 2014

Dec 11, 2014

Dec 1, 2014

Nov 21, 2014

Nov 20, 2014

Nov 19, 2014

Nov 18, 2014

Oct 30, 2014

Looking for more? Browse all our products here