Lancair Legacy, Pilot'S Operating Handbook And Flight Manual

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VII-22 February 2008
Legacy
VII-23 February 2008
Legacy
NOTE
It is recommended that the avionics buss be “cold”
during engine starts to preclude any electrical surge
from affecting the avionics suite.
HEATING, VENTILATING & DEFROSTING
Cockpit heating is provided by fresh intake air which is routed through a heat ex-
changer which is heated by the exhaust gases. A simple valve routes the air either
overboard or into the cabin. Since the toxic exhaust gases are high pressure, they
can leak into the fresh air side of the exchanger. It is imperative that this system
be checked regularly to preclude introduction of these exhaust gases into the cabin.
These gases contain carbon monoxide which significantly reduces the bloods ability
to carry O2, which seriously degrades judgment, night vision, etc.
Defrosting is accomplished by routing some or all of the warmed air to the wind-
shield if the warm air plumbing is equipped with this arrangement.
Ventilation is obtained from two flush mounted air intake scoops which direct the
outside air into the cockpit, one on each side wall. During ground operation the
canopy can be left partially open until takeoff. The canopy can never be opened
in flight, the latches must remain locked.
PITOT STATIC SYSTEM
An electrically heated pitot tube is standard for the Lancair Legacy. They are typi-
cally located on the lower side of the left wing. If your flights have the potential of
below freezing temperatures, IMC conditions or precipitation the pitot tube should
be checked prior to each flight.
This check can be made during preflight by turning the master switch on, the pilot
heater power on for a few seconds (less than 10 typically) and then feeling the
probe for warmth. The preflight should also check that the probe opening has not
become home for a wasp and that any cover has been removed.
NOTE
Probe heater power can never be left on except in
flight. Over heating and loss of the element will
occur.