TM 1-1520-240-108-2-14 Takeoff over water.Takeoff over water is begun from ahover height of approximately 30 feet. Align the helicopterwith the desired takeoff course at a stabilized hover orapproximately 30 feet, or an altitude permitting safe ob-stacle clearance. Smoothly apply forward cyclic pressureto level the helicopter and begin acceleration into EffectiveTranslational Lift (ETL). Control rate of acceleration anddirection of flight with cyclic and altitude with thrust. As theaircraft accelerates through ETL, establish a pitch attitudeand apply thrust that will result in a simultaneous gain inaltitude and airspeed. Continuous coordinated applicationof control pressures is necessary to maintain trim, heading,flight path, airspeed, and rate of climb.8-2-27. Slingload. Refer to Aircrew Training Manual (ATM).8-2-28. Climb.Refer to chapter 7 for recommended airspeeds, powersettings, and fuel flow.8-2-29. Cruise Check.CAUTIONRadar altitude (RAD ALT) hold can only beused in forward flight over water, it cannotbe used in forward flight over terrain.CAUTIONLarge pitch inputs will result in rapid gainor loss of altitude. If altitude hold is on, anover-torque condition can occur duringlarge pitch-down inputs. Monitor thrustcontrol movement and torquemeter dur-ing airspeed changes. Also, when operat-ing with altitude hold, limit bank angles to45 degrees maximum. An excessive bankangle may result in an altitude loss, and ifoperating at a high gross weight, an over-torque condition.*1. AFCS Control Panel — As required. F*2. Ramp area — The ramp area must bechecked every 30 minutes of flight.*3. Fuel Consumption — Check.8-2-30. DESCENT.Refer to Chapter 7 for power requirements at selectedairspeeds and rates of descent.8-2-31. Before Landing. The following checks must be accomplished prior tolanding:*1. Systems — Check indications of the follow-ing:a. Rotor.b. Torque.c. Engine.d. Transmission.e. Fuel.f.712Master caution panel.g.714ACaution/Advisor Panel.*2. PARKING BRAKE — As required.*3. AFCS control panel — Check as follows: a. AFCS HDG and ALT switches as re-quired.b. CYCLIC TRIM switches as required.c. AFCS selector switch as required.F*4. Crew, passengers, and mission equipment— Check.*5. Searchlight — As required.8-2-32. Landing.Refer to Aircrew Training Manual (ATM).8-2-33. Landing from a Hover to Water.Prior to landing, the PITOT HEAT switch must be ON.The ramp, lower half of the cabin door, lower rescue door,and drain plugs must be closed. Landing/searchlightsshall be retracted. From a stabilized hover, decreasethrust for a smooth rate of descent. A vertical descent,rather than a descent with some forward movement, willtend to disperse the swirling water spray under a no-windcondition. As the aft wheels and then the fuselage nearthe water, continue to lower the thrust control to grounddetent. As more of the fuselage enters the water, buoyan-cy will level the helicopter attitude.
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