Re: F28 Question

Date:         16 Aug 99 22:28:11 
From:         "Ian Stapleton" <ian.stapleton@virgin.net>
Organization: Virgin Net Usenet Service
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Several aircraft have similar devices, basically, when "closed" they deflect
all the exhaust thrust from the engine back over and under the wing: acting
as a basic reverse thrust in order to break the aircraft on landing.  They
are a lot simpler to fit to aircraft than having a reverse thrust capability
on the engine itself as this is more expensive and makes the engine have
more moving parts therefore increasing the number of points for a possible
engine related failure in the aircraft.