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Old March 16th 04, 04:51 AM
Orval Fairbairn
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In article ,
(Jeb Hoge) wrote:

"Jim Doyle" wrote in message
...
Recently I've been reading about the UK BVRAAM project.

One question really:

Originally it had four mid-fuselage wings for manoeuvrability, now it has
none. This seems a little odd, since it makes sense that the more agile
missile will have a greater number of control surfaces.

Since then I've found that the new design shall use bank and turn at long
range, and in the immediate short term prior to the kill - skid turns. How
do you skid a missile at 2M+? Exhaust deflection? If anyone can explain,
I'd
be very grateful!

Cheers,
Jim Doyle


And to add to this, do all missiles roll to fly with wings in a
horiz/vert (+) attitude or are there some types that fly at in an "X"
attitude? Darn things always are moving so fast that it's hard to
say, but since they obviously can come off the rail or ejectors in
either attitude, I'd assume that there's some sort of correction in
one of the two cases.


It depends on the missile and its attitude gyro package. As long as it
has track of its attitude, it can roll (Trident C4 and D5 had no roll
control) freely, but body lift is all it takes to make aerodynamic turns.