Originally Posted by STURM
Is there any particular reason why missile firings during exercises are normally conducted by ships that are moving at slow speed or at cruising speed - is it due to telemetry tests or simply to provide better photo opportunities for official photographers? Is there any technical reason as to why a launch wouldn't be made if a ship was moving say at 25 or 30 knots? Could FACs with speeds of 50 knots launch missiles when moving at high speeds?
Logically, I would say that it had something to do with stability & accuracy.
If a ship is pootling along at minimum speed, or at dead stop / station keeping for that matter, it is a more stable platform in pitch & roll.
This stability allows the processing of data to be made easier & this makes it more accurate, as while the data may well be being fed to the command system / fire control predictor 1,000 times a second, it's not being swamped with huge variations on pitch, roll, ships heading & speed from own ship.
Additionally, the same can be said for the track extractor data being processed by the radar / tracker that is tracking the target. Less variation / solid tracking of the target leads to better accuracy.
All that said, these systems CAN operate when the ship is at speed, but there is the likelihood that unless the missile is update from own ship, mid-flight, there's a higher probability of a miss.
FAC's generally use missiles that have their own seeker heads built in, that get initial (simple) target data (range/course/speed) from own ship, then after launch lock onto target.
Well that's my 2 cents worth....
Happy to be proven incorrect !