An analysis I did some years ago showed that a Mk-84 dropped from about
30,000 ft and about 500 knots will become just about supersonic before
striking the ground. However, that analysis did not account for the
relatively small lift force occurring as the bomb centerline transitions
from horizontal to near vertical during the bomb's flight.

WDA

end

"BackToNormal" wrote in message
zz...
Was half paying attention to a TV doco on the Dambusters a few mins ago
and thought I heard the narrator say the Earthquake bomb designed by
Barnes Wallis broke the sound barrie on its way down.
Comments anyone?

ronh

--
"People do not make decisions on facts, rather,
how they feel about the facts" Robert Consedine