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each individual screen will clearly identify the information
being displayed.
The information systems are also capable of alerting
the pilot when any engine or flight parameters are exceeded,
usually via a warning light mounted on the
instrument panel. Although the EIS is a valuable tool,
the ability to interpret the information is equally important.
For the interperetation of any engine and flight instrument,
you need to completely understand the engine
limitations, parameters, and the messages the instrument
provides you. Sensing the proper operation of the
aircraft and engine is a key factor to the safe operation
of any aircraft. Being able to interpret engine sounds
and unusual vibrations is essential for any pilot.
As with any aircraft or instrument operation, see the
POH for each individual make and model operating
instructions.
Additional Equipment
A GPS can sometimes be used to determine ground
speed while flying. A GPS is also a useful tool to enhance
navigation for cross-country flying. Review
Chapter 14 of the Pilot’s Handbook of Aeronautical
Knowledge for information on the calculations associated
with determining wind speed, ground speed,
fuel consumption, and time enroute.
Communication and navigation radios, transponders,
GPS and LORAN receivers are not required to fly
a powered parachute in Class G airspace. You must
have the required equipment on board to operate in
Class B, C, D or E airspace.
Equipment requirements can be found in the regulations.
Powered parachutes must meet these requirements.
Even though many powered parachutes have
strobe lighting to aid in the visual sighting of the
aircraft, additional positional lighting is required for
night operations. See Chapter 12 for more information.
Electrical System
Powered parachutes are typically equipped with a 12
volt direct-current electrical system. A basic powered
parachute electrical system consists of a magneto,
alternator or generator, battery, master/battery switch,
voltage regulator, and associated electrical wiring.
Electrical energy stored in a battery provides a source
of electrical power for starting the engine and a limited
supply of electrical power for use in the event the
alternator or generator fails.
The electrical system is turned on or off with a master
switch. Turning the master switch to the ON position
provides electrical energy to all the electrical
equipment circuits with the exception of the ignition
system. Equipment that commonly uses the electrical
system for its source of energy includes:
• Position lights.
• Anticollision lights.
• Instrument lights.
• Radio equipment.
• Electronic instrumentation.
• Electric fuel pump.
• Starting motor.
Fuses or circuit breakers are used in the electrical system
to protect the circuits and equipment from electrical
overload. Spare fuses of the proper amperage limit
should be carried in the powered parachute to replace
defective or blown fuses. Circuit breakers have the
same function as a fuse but can be manually reset,
rather than replaced, if an overload condition occurs
in the electrical system. Placards at the fuse or circuit
breaker panel identify the circuit by name and show
the amperage limit.
An ammeter is used to monitor the performance of
the electrical system. The ammeter shows if the alternator/
generator is producing an adequate supply of
electrical power. It also indicates whether or not the
battery is receiving an electrical charge.
Figure 3-7. Typical engine information system.
3-5
A voltage meter also provides electrical information
as to the battery voltage, an additional status of your
electrical system.
A voltage regulator changes the variable output of the
magneto or generator to the 12-volt DC level for the
battery and the electric system. The voltage output is
typically higher than the battery voltage. For example,
a 12-volt battery would be fed from the magneto/generator/
alternator system through the voltage regulator
which produces approximately 13 to 14 volts. This
higher voltage keeps the battery charged.
The Steering Bars
The steering bars are located just aft of the nosewheel
and mounted on each side of the aircraft; they move
forward and aft when the pilot applies foot pressure.
[Figure 3-8] The steering lines from the trailing
edge of the wing are attached to the outer ends of the
steering bars. (Some manufacturers have developed
a steering pedal system on their airframes, although
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Powered Parachute Flying Handbook动力伞飞行手册(23)
