5. After pickup, the aircrew is given any information that will aid in the takeoff. Following this, the RCL boat moves a safe distance from the aircraft and signals the pilot “all clear.” At this time, JATO bottles may be used for positive takeoff power. The installation of JATO bottles is time consuming and should not be done unless absolutely necessary. 6. Helicopters can land in water without the use of special flotation equipment provided: a. The water depth does not exceed 18 inches. b. There is a firm bottom such as gravel or sand. 7. Landing pads can be prepared on mountains or hillsides by cutting and filling. Caution must be exercised to insure there is adequate clearance for the rotors.