I. PREPLANNED AIR RESUPPLY OPERATIONS: a. Automatic Resupply Plan. This plan provides for initial automatic replacement of essential equipment and supplies, primarily communications equipment, immediately after infiltration. 1. Preinfiltration planning includes: DZ selection, DZ markings, drop time and date, and supplies to be dropped. 2. Immediately after infiltration provide for replacement of essential equipment and supplies, particularly communications equipment. 3. The automatic resupply plan may be received as planned, modified, or may be cancelled after infiltration, once contact is established with the SFOB. 4. If the detachment fails to contact the SFOB after infiltration, the drop is executed as preplanned.