stricted area rescues. It has a low and narrow profile, floats with the patient's head slightly reclined from the vertical,  and  can  be  hoisted  vertically  with  its  own slings  or  horizontally  by  using  standard  rescue  litter slings (cables) and a trail line assembly. The litter folds in half and is constructed of stainless steel tubing, the case and bed of nylon ballistic cloth, the restraint straps of  nylon  webbing  and  (Velcro),  and  the  zippers  are heavy duty and noncorrosive. It weighs approximately 40 pounds when fully rigged. SEA RESCUE Sea    rescue    operations    require    preparation    and practice     for     success.     Survivors     should     take     the following actions to aid rescuers: 1. Remove your parachute and get clear of it. 2. Retain    your    helmet    for    protection    during hoisting operations. 3. Establish communications by using the survival  radio.  If  radio  is  not  available,  use  signaling devices. 4. Use a Mk 13 or MK 124 Mod 0 smoke signal to show direction of surface winds. 5. During   night   rescue,   turn   on   the   strobe   or steady burning signal light. 6. If in a life raft, deploy the sea anchor, and then get clear of the life raft. 7. Ensure  that  the  rescue  device  is  in  the  water before you touch it. Static electricity may have built up. For sea rescues, a SAR crewman will be placed into the water. The SAR crewman will take control of the rescue and attach the survivor(s) to the elected rescue device for hoisting. Q11-17.   What does SAR mean? Q11-18.   What  is  the  primary  rescue  device  used  in helicopter rescues? Q11-19.   How many seats are on the forest penetrator? Q11-20.   How     many     survivors     is     the     rescue     net designed for? SUMMARY In this chapter you have identified aircrew survival equipment, flight clothing, parachutes, life preservers, life rafts, personal survival equipment, rescue procedures, and equipment. 11-24 LOWER   SUPPORT   RIB AND   FLOTATION ANf1133 MIDDLE   FRAME   FLOTATION UPPER   SUPPORT   RIB UPPER   FRAME   FLOTATION LIFTING   RING LOWER   SUPPORT   RIB AND   FLOTATION MIDDLE   FRAME   FLOTATION UPPER   SUPPORT   RIB LOWER   FRAME   FLOTATION Figure 11-33.—Rescue net.