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Proportional navigation (also known as PN or Pro-Nav) is a guidance law (analogous to proportional control) used in some form or another by most homing air target missiles. [1] It is based on the fact that two vehicles are on a collision course when their direct line-of-sight does not change direction as the range closes. PN dictates that the ...
Proportional navigation (also known as "PN" or "Pro-Nav") is a guidance principle (analogous to proportional control) used in some form or another by most homing air target missiles. [5] It is based on the fact that two objects are on a collision course when the direction of their direct line-of-sight does not change.
The APKWS II system is composed of the launch platform, rockets equipped with the WGU-59/B mid-body guidance unit, the lengthened 7-tube LAU-68 F/A rocket launcher, the SCS 7 aiming cue (not needed for attack helicopters), and Fastpack PA-140 and CNU-711/E storage kits for rockets and guidance kits, respectively, to ensure they are safe in the ...
The aircraft behaves as in direct mode: the autotrim feature is turned off and there is a direct response of the elevators to the sidestick inputs. The horizontal stabilizer is set to 4° up but manual settings (e.g. for center of gravity) override this setting.
Litton Systems Inc., or Litton Industries, the Guidance and Control Systems Division at Beverly Hills CA, were one of the major producers of inertial systems in the US in the 1950s and 1960s, and have made a series of systems for a number of American aircraft. [5] The Genesis of inertial navigation systems is explained in the following reference.
The various navigation templates maintained by the Military history WikiProject are all intended to be implemented through a single base template, which combines the project's common template style with the standard navigation box format.
The output of the navigation system, the navigation solution, is an input for the guidance system, among others like the environmental conditions (wind, water, temperature, etc.) and the vehicle's characteristics (i.e. mass, control system availability, control systems correlation to vector change, etc.).
Lateral guidance is equivalent to a localizer, and uses a ground-independent electronic glide path. Thus, the decision altitude, DA, can be as low as 200 feet. An LPV approach is an approach with vertical guidance, APV, to distinguish it from a precision approach, PA, or a non-precision approach, NPA.