TORCHING- The burning of fuel at the end of an exhaust pipe or stack of a reciprocating aircraft engine, the result of an excessive richness in the fuel air mixture.
A spectacular flame combined with high speed makes this a popular display for airshows or as a finale to fireworks (e.g., Riverfestival). Dump-and-burns are also referred to as "torching" or "zippos".
See also: Weight, Route, Flight, Landing, Air traffic
 
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