RESCAP means Rescue Combat Air Patrol. It protects recovery forces against threats from the air. Within the NATO PR framework, it is intended to establish a favourable air situation or temporary local air superiority along the approach route or in the objective area, allowing the recovery to proceed.
Contact with isolated personnel and the OSC role
A RESCAP may also help locate isolated personnel and establish radio contact. This supports the recovery before further forces arrive. That additional communication is distinct from actual pickup: the personnel are reached and recovered by the designated recovery platforms and, where used, a ground team.
Until other recovery elements arrive in the objective area, RESCAP may perform the On-scene Commander (OSC) role. The OSC directs actions on scene and maintains contact with command organisations, recovery forces and isolated personnel. The OSC hands over to a suitable Rescue Mission Commander (RMC) once the RMC can take command of the recovery.
Difference from RESCORT and pickup forces
Rescue Escort (RESCORT) protects recovery forces through escort, reconnaissance and fire support, and may perform additional communications tasks. RESCAP focuses on the air situation and protection against threats from the air. The Recovery Vehicle, in turn, takes isolated personnel on board. All three functions may be part of the same Personnel Recovery Task Force (PRTF).
The French PR model uses RESCAP for moyens de supériorité aérienne, forces for establishing air superiority that may support a recovery. The choice of supporting forces depends on the threat and accepted risk.