SERVICE LIFE ANALYSIS OF ATLAS MA-2 SUSTAINER ENGINE S/N 222107.
Abstract
The results of a service life evaluation of Atlas MA-2 sustainer engine S/N 222107 after exposure to 41 months of service life are presented. The successful full-rated-duration test and repeatability test followed by the functional and teardown analysis of the engine system indicated that the system was capable of safe operation and would have successfully performed its mission. However, the complete success of the hot-fire tests may not be as indicated because seal leakage on the dome side of the oxidizer dome check valve was corrected during the pretest leak check. This correction was considered necessary for safe test stand operation. It is difficult to predict the effect of the oxidizer dome check valve seal leakage throughout a missile flight duration. Engine performance and operation were not affected by the excessive pretest fuel leakage rate from the Mark 4 turbopump fuel elbow seal. The successful outcome of soft goods analysis in both the service life and accelerated aging environment enhances the possibility of extending the service lift of the sustainer LR-105-NA3 engine system beyond the present 42-month life. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 15, 1963
- Accession Number
- AD0426402
Entities
Organizations
- Rocketdyne