In article ,
says...

Ah yes I thought that was the one. Well talking of old icbm bits kind of
makes you wonder if these had to be called on to launch a strike how many
would have actually worked correctly!

The rather spectacular looking Antares launch failure seems to have been
a systems integration problem, not a problem with the individual stages.
Some unidentified vibration caused the control system to compensate for
an error that wasn't there. This caused the fluid (used for gimbal
control) to be exhausted too early, causing the stack to lose control.

Yet another downside for solids. They need a system for gimbaling
independent of the solid propellant/thrust chamber.

A LOX/kerosene engine, on the other hand, can use kerosene bled from the
high pressure turbo-pump exit for hydraulic control, so there is no
chance of "running out" of fluid for gimbal control as long as the
engine keeps running.

Jeff
--
"the perennial claim that hypersonic airbreathing propulsion would
magically make space launch cheaper is nonsense -- LOX is much cheaper
than advanced airbreathing engines, and so are the tanks to put it in
and the extra thrust to carry it." - Henry Spencer