Air Induction System - Cessna Grand Caravan 208B G1000 Manual

CESSNA SECTION 7
MODEL 208B G1000 AIRPLANE AND SYSTEMS DESCRIPTION
IGNITION SYSTEM
(Continued)
The main function of the starter switch is control of the starter for
rotating the gas generator portion of the engine during starting.
However, it also provides ignition during starting. For purposes of this
discussion, only the ignition functions of the switch are described. For
other functions of the starter switch, refer to paragraph titled Starting
System, in this section. The starter switch has three positions, OFF,
START, and MOTOR. The OFF position shuts off the ignition system
and is the normal position at all times except during engine start or
engine clearing. The START position energizes the engine ignition
system provided the ignition switch is in the NORMAL position. After
the engine has started during a ground or air start, the starter switch
must be manually positioned to OFF for generator operation.
White IGNITION ON CAS MSG will illuminate when electrical power is
being applied to the igniters. The ignition system is protected by a pull-
off type circuit breaker, labeled IGN, on the left sidewall switch and
circuit breaker panel.

AIR INDUCTION SYSTEM

The engine air inlet is located at the front of the engine nacelle to the
left of the propeller spinner. Ram air entering the inlet flows through
ducts and an inertial separator system and then enters the engine
through a circular plenum chamber where it is directed to the
compressor by guide vanes. The compressor air inlet incorporates a
screen which will prevent entry of large articles, but does not filter the
inlet air.
208BPHBUS-00 7-51
U.S.