Dual Ignition is a system for spark-ignition engines, whereby critical ignition components, such as spark plugs and magnetos, are duplicated. Dual ignition is most commonly employed on aero engines,[1][2] and is sometimes found on cars and motorcycles.
Dual ignition provides two advantages: redundancy in the event of in-flight failure of one ignition system; and more efficient burning of the fuel-air mixture within the combustion chamber.[1][2] In aircraft and gasoline-powered fire fighting equipment, redundancy is the prime consideration, but in other vehicles the main targets are efficient combustion and meeting emission law requirements.
- ^ a b Crane, Dale: Dictionary of Aeronautical Terms, third edition, page 177. Aviation Supplies & Academics, 1997. ISBN 1-56027-287-2
- ^ a b Aviation Publishers Co. Limited, From the Ground Up, (27th revised edition), page 67, ISBN 0-9690054-9-0