Follow-Up Work on Fibrous Suppressors for Lance Early-Reaction Problem.
Abstract
Large-scale experiments have shown that rapid rates of pressure rise leading to the early explosive-mode failures (failures that occur 1/4 to 1/2 sec after ignition) of the Lance propulsion unit do not occur when the fuel and oxidizer gases ignite upon contact. Seventy-three experiments were carried out in 6-in.-diameter, 170-cubic inches-volume and in 14.5-in.-diameter, 1650-cubic inches-volume closed bombs. Fibrous suppressors found to give large reductions of maximum pressure and pressure-rise rates in small (2-in.-diameter, 12.5-cubic inches-volume) closed bombs gave only marginal reductions in these quantities when used in 14.5-in.-diameter bombs. These experiments indicate the coolant pack now used in the Lance propulsion unit to be responsible for early explosive-mode failures. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1969
- Accession Number
- AD0858636
Entities
People
- Joe M. Viles
- William A. Wood