The Journey of Flight.pdf - Valkyrie Cadet

Chapter Chapter 8 8 - - - Air Aircraft Air craft in in Motion Motion
Motion
Hydraulic systems look a great deal like fuel systems. The fluid is stored in tanks called reservoirs.
It is pressurized, strained and then distributed through hydraulic lines to the parts of the plane that need
it. Once it has done its work, it is returned to the reservoir for later use.
Electrical Electrical Electrical Electrical Electrical Systems Systems Systems Systems Systems
The electrical system, like the hydraulic system, is important in operating an aircraft. A generator
mechanically attached to an aircraft’s engine provides the electricity required to charge the battery,
start the engine, operate the radios, and operate navigation and landing lights. Any electrical device
can be run from this system if the designer plans for the proper voltage and current.
On some aircraft, electricity may be used through electric motors to change the pitch of propellers,
lower and raise flaps, and actuate portions of the hydraulic system. More modern aircraft are usually
dependent on the electrical system to power critical parts of the vehicle. These parts might be as basic
as the Liquid Crystal Displays (LCDs) used to fly in the weather or as complex as the digital flight
control system used to point the aircraft where you would like it to go.
Without the assistance of hydraulic systems and electrical systems, pilots could not fly the larger,
more sophisticated aircraft. Even the smallest aircraft powered by an engine must have an electrical
system at least for ignition. Most require power to control and display the many aircraft instruments
that help the pilot fly and navigate.
Aircraf Aircraft Aircraf t Instr Instruments
Instr uments
Instrument Panel of a Cessna 182
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