Accession Number:

ADA158161

Title:

High Velocity Implanting of Anchors

Descriptive Note:

Final rept.

Corporate Author:

NAVAL SURFACE WEAPONS CENTER SILVER SPRING MD

Personal Author(s):

Report Date:

1984-07-01

Pagination or Media Count:

93.0

Abstract:

This report is a summary of a theoretical investigation of three ways to avoid the severe problems caused by recoil in the implanting of Propellant Emplaced Anchors PEAs. It was specifically requested that a launching system modeled after a recoilless rifle be evaluated. While doing this, the conclusion was reached that the recoilless rifle approach was more complicated than necessary, and that the desired performance could be achieved more easily by a direct rocket. The sponsors had suggested a water jet approach using cold high pressure gas to supply the energy, instead of propellant gas. This turned out to be impractical using the compressed air, but it became very practical using propellant gases. All of the systems were analyzed and simulated by computer models. All three systems appear reasonable and they all solve the recoil problem. However, the recoilless and the direct rocket have a common problem. Their requirement of a rocket motor with very high thrust 1.6 million pounds and a very short burning time 40 milliseconds has no parallel in current rocket technology. Apparent solutions to this problem would require very large structures. In any case, their development promises to be expensive and lengthy. Fortunately, the water jet does not share this problem. Its development should be timely, and costs should be reasonable. Keyword Anchors Marine.

Subject Categories:

  • Marine Engineering
  • Jet and Gas Turbine Engines
  • Solid Rocket Propellants

Distribution Statement:

APPROVED FOR PUBLIC RELEASE