I made some test with the AIM-54 (launched from both the Aerosoft F-14 and Dinos F-14D) and noticed some strange behavior of the missile inflight. The flightpath to the target and range seem OK but the speed... The Tacpack phoenix climbs out at about 600Kts IAS to 90kft and then cruises with 170Kt IAS, thats around 450-500Kt TAS. The lack if speed is compensated by an extremely large motor burn time of up to 6min IIRC. The missile should definetly go faster than that to stay in the air, not to mention intercepting high speed tail-aspect targets. I believe earlier versions of tacpack had more realistic flight speeds for the aim-54.
Since I havent found any posts on that issue it either means noone noticed yet or it is a problem on my end. Does anyone else have the issue?
Running TP 1.4.2.8 on FSX+ACC, Win7

Ok i figured this only happens when launching from extremely high, probably unrealistic ranges in excess of 100nm. Below that everything seems fine

That seems really slow. It was normal for the AIM-54's to reach ~100,000kft at the peak of their arc, and my notes indicate a mean flight velocity of ~1,650 KTAS. With that said, the AIM-54 flight behavior is entirely controlled by TacPack. Once the missile's are off the rails, the F-14 ends and TacPack is on it's own.