S
YSTEMS
D
ESCRIPTIONS
R
EVISION
:
-
D
ATE
:
12/29/04
P
AGE
:
13
Copyright
2004 Glasair Aviation, LLC Arlington, Washington All rights reserved
6-10 HEATING AND VENTILATION SYSTEMS
Optional cabin heat is provided by a heat exchanger mounted on the
exhaust system, with a heat valve mounted on the firewall. A push-pull
cable control opens and closes the cabin heat valve. If desired, the
warm cabin air can be diverted to provide windshield defrosting as well
as heating for the occupants.
Two optional cabin vents provide fresh air ventilation for the cockpit
area. NACA-style inlet ducts on both sides of the fuselage feed air into
boxes which incorporate “eyeball” vent valves to control the flow of
ventilation air into the cockpit.
6-11 ELECTRICAL SYSTEM
The electrical system is optional in the Sportsman and, thus, will vary
widely among individual Sportsmans. The only difference between the
Sportsman’s electrical system and that of more conventional aircraft is
that the composite aft fuselage structure on the Sportsman cannot be
used as a ground. Instead, a negative (ground) lead as well as a
positive (power) lead is required for any electrical equipment mounted
aft of the fuselage cage. All circuits should be protected by appropriate
circuit breakers, which can be either rocker-arm style or the standard
push-pull type.
Optional navigation/strobe light units can be mounted to the wingtip
fairings. The standard lower engine cowling has a molded recess for a
landing light lens, so an optional landing light can be easily installed.