attempting to isolate the problem.
If you believe the problem has been isolated and you
elect to continue the flight, remain alert for another
anomaly caused by; the first difficulty.
Speed Brakes
If the speed brakes should fail in the UP (de-
ployed) position, attempt to retract them by cycling
to full up then down. If electric powered, pull the
circuit breaker and they should collapse.
If all attempts fail to retract them, land with them ful
-
ly extended and use 110 KIAS on final. Testing has
shown that the Lancair has sufficient roll control to
safely fly with one speed brake extended, and the oth-
er fully retracted, again, final approach speed should
be 110 KIAS minimum.
Landing Gear
Your Lancair IV gear is held up by hydraulic
pressure. A pressure switch shuts off the electrical
power to the pump when system pressure (1100 psi)
is achieved. If hydraulic pressure is lost the nose gear
will free fall, and with the aid of a gas strut will lock
in the down position, the main gear will fall to a ver
-
tical position and with the aid of the emergency hand
pump lock into the down position. Emergency gear
extension is accomplished as follows;
Airspeed
BELOW 120 KTS
Gear Motor Solenoid Circuit Breaker
PULLED
Gear
Handle
DOWN
Emergency Hand Pump
PUMP
The nose gear will free fall and it’s light should
illuminate immediately after lowering the gear handle,
activate the emergency hand pump until the Main Gear
lights are green and the handle is stiff. Once lowered it
is not advisable to attempt a retraction prior to landing
and determining the cause of the failure.
WARNING
Aircraft observers must be used with caution
as not all pilots have the training to safely fly “for
-
mation” and may not be sufficiently familiar with
the Lancair gear in its down and locked configura
-
tion.
UNLATCHED DOOR IN FLIGHT
If the door becomes unlatched or opens in flight
the first priority is to “FLY THE AIRPLANE”. If the
door is still hooked, have a passenger hold the handle
to prevent further opening, if the door has completely
opened do not attempt to close it. Slow the airplane
down to approach speed, extend the flaps and return to
the nearest airport and land.
SPINS
Spins are not recommended. If a spin is entered
inadvertently or intentionally the stick should be neu-
tralized or placed slightly forward of neutral, the rudder
