Design issues encountered in the synthesis of bank-to-turn autopilots are discussed for several proposed air-launched tactical guided missile configurations. Some approaches to dealing with these issues are also discussed. Much of the material was developed from experience gained in the design of an autopilot for a medium range air-to-air missile configuration incorporating an integral rocket-ramjet propulsion system. Therefore, emphasis is placed on that type of system. None of the bank-to-turn autopilots were flight tested, so only simulation results can be presented. The first issue discussed is why a designer would consider bank-to-turn control instead of the conventional skid-to-turn control used by most tactical missiles. The advantages and disadvantages of each approach are related to the performance of the airframe, propulsion, guidance, and autopilot subsystems. Several bank-to-turn control laws are presented. The relative merits of each are discussed with respect to the type of airframe, propulsion, and guidance required for the missile mission under consideration. Performance penalties are presented along with the advantages of including a skid-to-turn capability. Simulation studies have shown that some performance penalties may be incurred using bank-to-turn control for some types of missions, particularly for anti-air engagements, but these penalties are frequently small compared to other performance benefits derived from its utilization. These simulation studies and their results are discussed in appropriately general terms.
Flight Control Design Issues in Bank-to-Turn Missiles
1990
16 pages
Report
No indication
English
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