Re: Concorde's other customers

Date:         26 Dec 97 03:29:00 
From:         don@news.daedalus.co.nz (Don Stokes)
Organization: Daedalus Consulting
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toad <y106fm@iamerica.net> wrote:
>Does Concorde have thrust reversers?  Or does it use a parachute to slow it
>down?

Short answer: thrust reversers.

Longer answer: Concorde actually has two sets of variable nozzles on each
engine.  The primary nozzle shapes the flow coming out of the engine, just
behind the reheats.  The second set operates as a pair of buckets.  Fully
open, they act as a kind of expansion chamber -- this is the setting while
operating supersonically.  Partly closed, they divert air from above and
below the engines into the core flow, reducing noise (relatively!), which
is used during subsonic operations.  Fully closed they act as thrust
reversers.

Concorde prototypes had drag parachutes for landing, but these were dropped
from the pre-production and production aircraft as being unnecessary.  (The
prototypes initially lacked the bucket style secondary nozzles.)

--
Don Stokes, Networking Consultant  http://www.daedalus.co.nz  +64 25 739 724
Network Design, Cable Plans, LANs, WANs, Radio Networks, Internet Consulting