Accession Number:

AD0363166

Title:

MISSILE 9C FAILURE, 24 SEPTEMBER 1959

Corporate Author:

GENERAL DYNAMICS/ASTRONAUTICS SAN DIEGO CA

Report Date:

1959-10-22

Abstract:

Atlas Missile 9C, assigned as the first stage of the four-stage AtlasAble IV lunar satellite project, was destroyed by fire and explosion during an attempted Flight Readiness Firing on 24 September 1959. The test was conducted on Complex 12, AMR, at 1012 EST. This was the last of the Series C flight test articles. Installed on the missile for the test was the Aerojet second stage of the Able IV. An investigation was conducted by Convair engineering to determine the cause of the failure. After analysis of test data and recovered missile hardware, the investigation revealed the cause and established the sequence of events which resulted in the failure. The loss of the missile followed a premature cutoff of the engine after 2.136 seconds of a planned 20-second cluster firing. The automatic cutoff was preceded by unloading of the sustainer engine turbine and subsequent sustainer pump overspeed, followed by rupture of a bellows joint in the sustainer LO2 pup inlet ducting. A LO2-fed fire resulted which destroyed the missile.

Descriptive Note:

Final rept.

Supplementary Note:

Revision of report dated 4 Oct 1959.

Pages:

0433

Communities Of Interest:

Modernization Areas:

Distribution Statement:

Approved for public release; distribution is unlimited.

File Size:

33.00MB