The skills discussed during sustained Airborne training are perishable and Airborne operations are inherently high-risk training. Sustained Airborne training is performance-oriented training and must be performed by all personnel prior to conducting Airborne operations. The purpose of this appendix is to assist JM teams during the conduct of mock door training and the five points of performance for the T- 11 and MC-6 parachute systems for a high performance aircraft Airborne operation.Sustained Airborne training consists of three phases. The three phases are highly recommended to be conducted in the order listed below. Commanders should only authorize a deviation to the training plan if training requirements or apparatus restrictions do not allow. This order of events is the logical progression of training for the Airborne operation. Prior to conducting SAT, ensure the jumpmaster team inspects the helmets, identification tags and cards, and performs a technical inspection of the jumper’s combat equipment when applicable. The three phases of SAT are:1. Actions in the aircraft brief (static line control, exiting procedures, red light procedures, jump refusals, towed jumper procedures, emergency procedures) and mock door training.2. Prejump training.3. Parachute landing falls.