Lateral Jet-Missile Interference Data Correlation Study,
Abstract
The use of small reaction jets has been found to be an effective means of controlling certain types of missiles. Usually, four control jets, mounted with their nozzle exit planes flush with the missile surface, are equally spaced around the missile body and their thrust is directed perpendicular to the missile centerline. In this arrangement, the jet exhaust extends laterally into the free stream for some distance, then curves to become aligned with the free stream. Generally, the force exerted by any single jet on the missile is not exactly equal to the thrust of the jet. One factor contributing to this phenomenon is the change in pressure distribution on the missile body near the nozzle caused by a separated boundary layer created by the jet flow. Another factor is the possible direct impingement of the jet exhaust on aft portions of the missile, including tail fins. Because a technique to estimate control jet effects is needed and because the theoretical state of the art has not yet advanced far enough to provide this technique, an empirical method based on test data must be developed. This report describes the development of such an empirical method. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1968
- Accession Number
- AD0865674
Entities
People
- D. F. Coble
Organizations
- Lockheed Martin Missiles and Space