曝光台 注意防骗
网曝天猫店富美金盛家居专营店坑蒙拐骗欺诈消费者
or taxiing and provide consideration for the right-ofway
of others. Keep a lookout in front of you and
on both sides. Be aware of the entire area around the
powered parachute to ensure the PPC will clear all
obstructions and other aircraft. If at any time there is
doubt about the clearance from an object, you should
stop the powered parachute and verify clearance.
5-11
Even though you may not be using a standard runway,
you may need to cross active runways or taxiways
to get to the area designated for powered parachute
operations. That means understanding radio communications
and keeping your eyes and ears open. You
probably have better visibility than a pilot in a typical
airplane.
The primary requirements for safe taxiing are positive
control of the aircraft at all times, the ability to recognize
potential hazards in time to avoid them, and the
ability to stop or turn where and when desired. While
on the ground, the throttle directly controls your
groundspeed. It is important not to taxi too fast, and
be careful no one is in your prop blast. Going too fast
can damage the frame or the suspension. The grass
you taxi on could have holes and ditches, and damage
the suspension. When taxiway centerline stripes are
provided, they should be observed unless necessary
to clear airplanes or obstructions.
Ground steering is accomplished by controlling the
ground steering bar. The ground steering bar may in
fact be a bar, handle, wheel, or lever; ground steering
controls are as varied as the powered parachutes
themselves. Operate the ground steering in a slow
and deliberate manner, never jerky or erratic. Some
ground steering bars are pushed forward to turn right
and pulled back to turn left. Others are just the opposite.
Consult the POH for each make and model
of aircraft you fly to determine the safe and proper
operation of the ground steering.
When taxiing, it is best to slow down before attempting
a turn. Sharp, high-speed turns place undesirable
side loads on the landing gear and may result in an
uncontrollable swerve. If the wing is inflated, the cart
will not follow the direction of the wing due to the
friction (via the wheels) with the ground. If the cart
and the wing are not going in the same direction, you
must prevent the wing from gaining enough lift (via
cart groundspeed) to pull the cart over on its side.
(See Chapter 12 for more details on pull-overs.) Adjust
power or apply braking as necessary to control
the taxi speed. More engine power may be required
to start the powered parachute moving forward, or to
start a turn, than is required to keep it moving in any
given direction. When using additional power, retard
the throttle immediately once the powered parachute
begins moving, to prevent excessive acceleration.
When first beginning to taxi the PPC cart, if equipped
with brakes, test them for proper operation as soon as
the powered parachute is put in motion (typically with
a hand control). Apply power to start the powered
parachute moving forward slowly, and then retard the
throttle and simultaneously apply pressure smoothly
to the brakes.
To avoid overheating the brakes when taxiing, keep
engine power to a minimum. Rather than continuously
riding the brakes to control speed, it is better to
apply brakes only occasionally. Other than sharp turns
at low speed, the throttle should be at idle before the
brakes are applied. It is a common error to taxi with a
power setting that requires controlling taxi speed with
the brakes. This is the aeronautical equivalent of driving
an automobile with both the accelerator and brake
pedals depressed at the same time.
When taxiing with an inflated wing (kiting), the ramair
wing will try to weathervane. The wing is designed
to be self-centering; its strongest desire is to point into
the wind.
Stop the powered parachute with the nosewheel
straight ahead to relieve any side load on the nosewheel
and to make it easier to start moving ahead.
At nontowered airports, you should announce your
intentions on the common traffic advisory frequency
(CTAF) assigned to that airport. When operating from
an airport with an operating control tower, you must
contact the appropriate controller for a clearance to
taxi, and a takeoff clearance before taxiing onto the
active runway.
After landing, taxiing with the parachute inflated requires
you to coordinate movements between the rolling
cart on the ground and the flying wing in the air.
Cross-controlling by steering the cart one way while
中国航空网 www.aero.cn
航空翻译 www.aviation.cn
本文链接地址：
Powered Parachute Flying Handbook动力伞飞行手册(45)
