The MH-53J Pave Low is the largest, most powerful and technical advanced helicopter in the United States Air Force. With navigation systems and GPS pictures are shown into the cockpit where the pilots get a clearly view of the terrain.
The MH-53 helicopters have been updated with IDAS/MATT. This includes a near real-time of electronic message giving of updates of the battle field. With a special terrain follow radar the pilots can see over the horizon to avoid threats.
MH-53 helicopters which have been updated with this update (9x MH-53 and 32x HH-53) are having the J after their name.