North&Wing&S,LSA&Pilot&Operating&Handbook&
Model:&Scout&X,C&912&
Version 2.2
Released Date 3-14-2012
Page 42
being!exceeded!returns!to!the!“normal”!range!as!defined!in!the!EIS!system.!
"
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Keyed&Master&Switch&,&
The!key!switch!controls!power!to!the!starter!and!to!any!
accessories.!!With!regard!to!starting,!the!Master!Switch!works!just!like!an!ignition!
key!on!a!car!provided!the!magnetos!are!ON.!!Turning!the!switch!all!the!way!to!
the!right!(clockwise)!activates!the!starter.!!Releasing!it!will!cut!the!flow!of!power!
to!the!starter,!but!will!keep!accessories!on.!!Turning!the!key!to!the!left!(counter!
clockwise)!will!shut!off!any!accessories!tied!to!the!key!switch.!!However,!the!
actual!“ignition”!circuit!is!controlled!by!the!magnetos.!!Turning!the!Master!switch!
off!will!NOT!shut!down!the!engine.!
!
NOTE:!The!key!should!NEVER!be!left!in!the!ignition!when!the!plane!is!
unattended.!!Even!with!the!mag!switches!in!the!OFF!position,!turning!the!key!to!
the!right!WILL!turn!the!engine!over!and!will!cause!the!propeller!to!turn.!
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7.4.#
Electrical#System#Overview#
Your!Scout!XAC!912!TRIKE!includes!a!selfAcharging,!stateAofAtheAart!electrical!system!
that!provides!power!to!all!onboard!accessories,!as!well!as!keeping!the!starting!battery!
charged.!The!main!components!of!the!electrical!system!are:!
!
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Lighting&Coil
!A!An!integral!part!of!the!Rotax!engine,!the!lighting!coil!provides!AC!
output.!
"
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Regulator/rectifier
!A!Located!on!the!fuse!box!(“Hot!Box”)!or!the!back!frame,!the!
regulator/rectifier!receives!the!AC!input!from!the!lighting!coil!and!converts!it!to!a!
12!volt!DC!output.!This!12!volt!DC!is!then!fed!to!the!battery!for!charging!and!
powering!accessories.!
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!
Battery
!A!It!is!located!behind!the!rear!seat!below!the!engine.
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7.5.#
Rotax#912#Engine#
!
Bombardier!builds!the!Rotax!912!engine!that!is!used!on!the!Scout!XAC!.!The!engine!is!
specifically!for!the!light!aircraft!applications.!!The!Rotax!912!is!extremely!powerful!and!
reliable.!!The!following!features!contribute!to!its!suitability!for!this!application:!
"
! Dual!ignition!systems!provide!redundancy.!!This!is!a!feature!unique!to!aircraft!
engines.!
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! High!power!output.!!The!Rotax!912!delivers!80!h.p.,!@!5800!rpm,!enough!power!
to!safely!lift!the!maximum!payload!specified!by!North!Wing!for!this!machine.!
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! Liquid!cooling!provides!reliable!operation!even!in!the!hottest!weather.!
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! The!builtAin!electrical!circuits!provide!power!for!onboard!accessories!and!
charging!your!starting!battery.!
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! Rotax!has!a!large!network!of!service!professionals!to!provide!service!on!your!
engine.!
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