Abbreviated Landing Checklist (G.u.m.p; Heating & Ventilation; Cold Weather Operations - Lancair Legacy Pilot's Operating Handbook And Flight Manual

ABBREVIATED LANDING CHECKLIST (G.U.M.P.)

Gas
Fuel Tanks ............................... SET FULLEST TANK
Boost ....................................... AS DESIRED
Fuel Pressure........................... CHECK
Under Carriage
Gear......................................... DOWN, 3-GREEN (140 kts max)
Flaps........................................ SET
Mixture
Mixture Control ...................... RICH
Prop
Propeller Control..................... HIGH RPM (In)
HEATING & VENTILATION
Cooling air. Your Lancair is equipped with simple air intake scoops for cabin ven-
tilation. The vents are located at the pilot's left knee and co-pilot's right knee.
Heating. Cabin heat is provided by means of an intake system using air warmed by
passing over/thru a heat exchanger where exhaust gases are used as the heat source.
This air-to-air heat exchanger provides air which is either dumped overboard, or
into the cabin. Due to the potential of a leak from the higher pressure exhaust gases
containing Carbon Monoxide (CO) into the fresh air side of this heat exchanger, it
is necessary to inspect the structural integrity of the unit periodically. Initial opera-
tion of the system for the winter months should always include such an inspection.
A monitoring system should be considered for the cabin air. These simple devices
change color upon exposure to CO. They are quite cheap, and excellent insurance
against the effects of this odorless, colorless, and deadly gas. Optionally install an
electric CO monitor available through Lancair Avionics.

COLD WEATHER OPERATIONS

PREFLIGHT INSPECTIONS
Winter preflight inspections of the aircraft need to account for the accumulation
of frost or ice on the exterior of the aircraft. The Lancairs with their extraordinary
smoothness can suffer markedly from the effects of such accumulations as they
utilize laminar flow airfoils. These effects result in significantly higher drag of the
air-frame and wings as well as reduced lift and increased weight of the accumulation.
Once these deposits have been removed (preferably by warming in a hangar) the
preflight should include special emphasis on freedom of control movements.
IV-18
Legacy
February 2008