ground handling.docx

Ground Handling Procedures 02-01-10: Taxi Procedures General: Taxi procedures for the G650ER aircraft are basically the same as previous models of Gulfstream aircraft. Some special care is required, however, because of the G650ER additional engine thrust, the additional distance between the no...

Ground Handling Procedures 02-01-10: Taxi Procedures General: Taxi procedures for the G650ER aircraft are basically the same as previous models of Gulfstream aircraft. Some special care is required, however, because of the G650ER additional engine thrust, the additional distance between the nose landing gear and main landing gear, and the new nose wheel steering system. Particular attention to correct taxi speed and adequate wing clearance is also required. Use of Thrust: To break away at the ramp, release the brakes and smoothly advance the power levers and let the aircraft roll forward. Because of the residual thrust created at idle power, very little power lever movement is needed to move the aircraft. When adding power, wait for the aircraft to respond before adding additional power. As the engines spool up, the aircraft will begin moving smoothly at a comfortable speed. If obstructions are behind the aircraft, use the minimum thrust necessary for taxi to avoid damage caused by engine exhaust. Both engines should be used together to reduce the amount of thrust required from any one engine. Braking: Do not ride the brakes. Overheated brakes reduce braking efficiency and could seriously affect the stopping distance in a rejected takeoff. Use of idle reverse is permissible on clean taxiways to reduce brake usage. 02-01-20: Typical Taxi Turning Path DURING TAXI OPERATIONS, TURNING THE AIRCRAFT USING DIFFERENTIAL BRAKING COULD RESULT IN DAMAGE TO THE NOSE WHEEL STEERING UNIT IF THE NOSE WHEEL ANGLE EXCEEDS 81 DEGREES ± 1. IF FULL NOSEWHEEL STEERING IS REQUIRED AT LOW TAXI SPEEDS, AVOID ABRUPT DIFFERENTIAL BRAKING OR A NOSE WHEEL STEERING OVER-TRAVEL CONDITION IS POSSIBLE. Maneuvering: Beginning to move while at the same time attempting to turn requires a considerably higher thrust level. When a turn is required immediately following brake release, advance power to obtain sufficient speed to carry the aircraft throughout the turn. If braking is required, use brakes symmetrically. Whenever space is available, turns should be made with less than full nosewheel steering travel. For small changes of direction, rudder pedal steering alone can be used to provide up to seven degrees (7°) of travel. The combined use of rudder pedal steering and nosewheel steering is additive. Force should be applied to the nosewheel steering with a constant and smooth application and returned to center gently, while keeping firm control of the nosewheel steering. Any quick movement of the nosewheel steering will result in jerky movements of the aircraft, which may be uncomfortable for the passengers. When initiating a turn, do not begin the turn until the extended centerline of the intersecting taxiway is under the pilot's seat position to compensate for the nose gear being aft of the pilots' seats. Taxi speed should be monitored closely in tight turns. The best reference is the ground speed indication on the Pilot's Primary Flight Display (PFD). Excessive speed in tight turns or on wet or slippery surfaces may cause the nose wheel to skid or scrub the side walls. Be cautious when maneuvering in tight spaces when turning. The swept wing "grows" during turns and when it may seem like the wing will clear an obstacle, it may hit it. Always use wing walkers when taxiing in tight spots. Visual References: When turning into narrow taxiways from a wider surface, it is better to oversteer than understeer, i.e., go past the extended centerline of the narrow taxiway until it intersects the main door before initiating the turn. 02-01-30: Minimum Aircraft Turn Radii Figure 1. Turning Dimensions and Distances depicts the minimum turn radii of the G650ER. Ground Handling Procedures OEM Provided Data Revision 13 2023-03-23 02-01-00: 2 of 4 Figure 1. Turning Dimensions and Distances 61.08 FT. (18.62 M) 46.32 FT. (14.12 M) 52.86 FT. (16.11 M) 53.81 FT. (15.91 M) MINIMUM TAXI STRIP FOR 180 o TURN: 62.06 FT. (18.92 M) MINIMUM TURNING CIRCLE DIAMETER: 114 FT. (34.14 M) TIL-014287