Abstract: Methods and systems for programming the automatic guidance unit of an aerial delivery system. The operator selects on a hand-held unit the desired flight parameters such as the latitude, longitude and altitude of the desired landing site, as well as the desired landing heading and default heading. A microprocessor converts this data into digital data that is stored on a removable EEPROM memory key. This key is then removed from the hand-held unit and at any convenient time, inserted into a mating female receptacle in the automatic guidance unit of the aerial delivery system. The programmed information originally entered in the hand-held unit is then transferred into the guidance unit of the aerial delivery system.

Abstract: The present invention is an impact print bar assembly (10) adapted for installation in a typewriter, character printer or other device adapted for linear application of printed characters to sheet material. The assembly (10) includes an impact print bar (12) which is adapted to be held within a bar holder (14) in any of four different orientations, each of the orientations presenting a different print surface. The impact print bar (12) provides a solid, non-rotating, surface for the sheet material to reast against during printing. The impact print bar (12) includes a central support rod (28) having a resilient, usually plastic, body (36) formed thereabout. The degree of hardness of the body (36) may be varied, depending on the application desired. The support rod (38) has a square cross-section such that it will fit into the hollow frame (52) of the bar holder (15) in any of the four orientations.