Yaw stabilization of landing craft
The purpose of this work was to investigate the application of pump jet propulsion and yaw angle stabilization for a landing craft going through the surf. Linear theory was used throughout the analysis of the control problem. The stability indices and derivatives were determined in part by experi...
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| Language: | en_US |
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Massachusetts Institute of Technology
2012
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| Online Access: | http://hdl.handle.net/10945/9675 |
| Summary: | The purpose of this work was to investigate the application of pump jet propulsion and yaw angle stabilization for
a landing craft going through the surf. Linear theory was used
throughout the analysis of the control problem. The stability
indices and derivatives were determined in part by experiment
and the remainder by analytic techniques. It was found that LCVP landing craft are dynamically
unstable without a skeg. Stability could possibly be restored
by a feedback control system, but the far more practical solution
is to start with a dynamically stable craft. This will
provide the craft with a greater margin of stability in all cases. Although it is felt that the craft can not be satisfactorily
used without a skeg, much of the analytic data in Appendix A
may be used to cover the case with a skeg. Reference (3) contains
the appropriate modifications needed for the changes. |
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