with it being located near the firewall requiring only
one relatively large ground wire to the battery and one
“hot” wire to the starter. The power to the starter is
controlled by a relay.
Flap Hydraulic System
The wing flaps
are hydraulically operated and
also fed off of the main hydraulic system. Partial flaps
are obtained by simply timing the actuation of the
switch. For example the “count” of 3 will generally re-
sult in approach flaps. If desired a mark can be placed
on the extended flap visible to the pilot to aid in reach-
ing a consistent position quicker.
Aircraft Lighting
The variability of owner-built aircraft results
in unique systems. Such circuits would include map
lights, landing lights, instrument panel lights, position
lights and strobe lights. Each would be powered off the
main buss, have an approximately sized circuit breaker,
have their own switch (or rheostat) and as was indicat-
ed earlier their own ground return wire required by the
composite material of the Lancair.
The avionics are operated off a separately
powered avionics buss to allow the whole set of equip
-
ment to be turned off and on at one time. Their lighting
systems are integral and with this configuration it is
possible to leave on only one comm or one nav should
an electrical failure occur in flight making the most
effective use of the remaining battery power.
NOTE
It is recommended that the avionics buss be
“cold” during engine starts to preclude any electri-
cal surge from affecting the avionics suite.
