REVISED: 21 FEB 2014 7-22
ROBINSON
MODEL R44
SECTION 7
SYSTEMS DESCRIPTION
PITOT-STATIC SYSTEM
The pitot-static system supplies air pressure to operate the
airspeed indicator, altimeter, and vertical speed indicator.
The pitot tube is located on the front edge of the mast
fairing. The static sources are located on each side of the
cabin aft of the rear doors.
Water can be drained from pitot-static lines by removing
the plastic drain plugs which are accessible through the
forward inspection panel on the underside of the cabin.
Draining lines should be required only if the airspeed
indicator or altimeter appears erratic.
Pitot and static sources should be inspected frequently for
bugs or other obstructions.
DUAL TACHOMETER
An electronic engine and rotor dual tachometer is standard.
Engine tachometer signal is provided by magneto breaker
points. Rotor tachometer signal is provided by two
magnetic senders at the main gearbox drive yoke. Each
tachometer is on a separate circuit with its own circuit
breaker. With battery and alternator switches off, the
tachometers continue to receive power from the battery
through a bypass circuit as long as the clutch actuator
switch is in the engage position.
To Next Page
Loading...
