With the increase of domestic light aviation enthusiasts, more and more people are learning to fly helicopters, so how much do you know about helicopter landing?
1. The control system shall work normally;
2. When landing, the slope Angle must be less than or equal to the slope Angle limit specified in the flight manual;
3. When hovering, the wind speed must be within the speed limit specified in the flight manual;
4. The center of gravity of the helicopter must be within the normal range;
5. When performing a ramp landing, cross the ramp rather than landing facing or facing away from the ramp because the tail rotor may strike the ground;
6. For most helicopters, the maximum slope should be 5 degrees.
1. Over the selected landing field for landing and landing, the ground effect hovering with safe height margin should be done, the total distance should be gently reduced, the vertical descent speed should be strictly controlled, and the helicopter offset is not allowed. The front end of the skid should be grounded first, and when the front end is grounded, the total distance should be gently reduced until the skid is fully grounded.
In case of landslide, the pilot lever should be operated to control helicopter movement.
When the slope is off the land, the total distance should be gently increased. The rear of the skid is off the ground first, and the total distance continues to be increased until the skid is all off the ground, and then the slope is off the land.
2. The slope land and from land selected above the landing zone, do have security highly allowance to hover, reduce the total distance softly, strict control of vertical drop speed, don’t allow the helicopter offset, pry first left after the ground (helicopter rotor to overlook counterclockwise) and right rear again pry grounding, as the helicopter to form a certain down attitude Angle,
With THE ROD slightly back to prevent the helicopter from sliding down, CONTINUE TO gently reduce the total pitch until the front skid is grounded.
The amount of the belt rod to reduce the total distance to the helicopter does not slide to the slope direction as the principle.
When TAKING OFF ALONG THE slope, THE ORIGINAL operation should be maintained, and the total distance should be gently increased. The front pry should be lifted off the ground first, and the depression Angle of the front pry should be maintained in a small attitude, and the total distance should be continued to increase until the rear pry is lifted off the ground to complete the take-off along the slope.
The key to taking off downhill is to control the attitude of the helicopter. If the helicopter takes off in an upturn attitude, there is a good chance that the tail brace will hit the ground.
3. The left transverse slope land and from land selected above the landing zone, do have security highly allowance to hover, reduce the total distance softly, strict control of vertical drop speed, don’t allow the helicopter offset, right slide first grounding (above the cross slope, the right body at right angles to the cross slope), when feel right slide grounding, pause on the horizontal posture,
Then move the lever slightly sideways up the slope and continue to gently reduce the total pitch until the left skid is fully grounded.
In case of landslide, the pilot lever should be operated to control helicopter movement.
When taking off on the left side of the slope, start by moving the lever slightly uphill, keeping the lever facing uphill so that the skis on the downhill side rise as you slowly lift the pitch bar.
As THE SKIS RISE, MOVE THE PILOT LEVER TOWARD THE NEUTRAL POSITION. If DONE CORRECTLY, WHEN THE PILOT LEVER RETURNS TO THE NEUTRAL POSITION, THE HELICOPTER WILL GAIN a HORIZONTAL ATTITUDE.
Continue SLOWLY LIFTING THE TOTAL PITCH until the starboard SKis ARE all off the GROUND AND complete the left ramp TAKEOFF.
The pilot lever should be controlled well during the cross slope takeoff to prevent the helicopter from drifting over the cross slope after takeoff.
4. Right cross slope landing and landing procedure is opposite to left cross slope procedure, which can be operated by referring to left cross slope landing and landing procedure.
1. During downslope landing, rapid lowering of the total distance may cause the tail brace to touch the ground;
2. Before the ramp landing, if the helicopter encounters system failure, it should be changed to terminate the ramp takeoff and landing in time, so as not to affect the pilot’s operation;
3. When a ramp landing has been formed, it is necessary to strengthen observation and monitoring, and leave the land as soon as possible according to the situation;
4. If there is abnormal vibration or rotor shaft collision, it means that the steering lever side deviation exceeds the limit, and the landing should be interrupted, because the slope is too steep and not suitable for landing;
5. When the anti-clockwise rotor system helicopter is landing on the left side of the slope, in order to overcome the translational trend, it is necessary to lean more on the left side of the steering lever, which is easy to exceed the control limit. It is better for the seat to slide on the right side of the slope.
1. After the helicopter has successfully landed on a slope, it is not allowed to start the engine (except those with a small slope);
2. When landing on a slope, it must be performed on a hard slope;
3. No wheeled landing gear helicopter is allowed to land on snowy slopes;
4. Do not land on frozen slopes;
5. Check the fuel surface balance of each fuel tank before landing on the ramp;
6. After landing on the slope, the helicopter is not allowed to stay on the slope for a long time, so as to avoid a wide range of center of gravity changes caused by the fuel tank oil;
When APPROACHING and landing in unfamiliar areas, the actual slope of the slope must be considered. Therefore, if possible, the ground controller must observe the whole process of the slope takeoff and landing, and keep in touch with the pilot by radio to ensure the safety of the slope landing and landing.
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