|Quoting Garnetpalmetto (Reply 151):|
Four warning (three by Vincennes and one by the Perry class frigate USS Sides) were sent on the 121.5 MHz International Air Distress frequency that IR655's crew was supposed to monitor.
The warnings stated "unidentified aircraft", which the civilian aircraft crew would not have recognized as intended for them, particularly since they were still in the Iranian air space, ascending and within the civilian "Amber 59" corridor, squawking a valid code, in contact (in English) with BND tower, THR
FIR and subsequently DXB
tower. This were frequencies that the warships could have easily heard.
I actually am quite convinced by the US Navy's OWN investigation (much more so than those by the ICAO or the Iranian CAO, since the later two would not have had access to US naval classified data). This is from USN
Admiral Fogarty 's report stated, "The data from USS Vincennes tapes, information from USS Sides and reliable intelligence information, corroborate the fact that [Iran Air Flight 655] was on a normal commercial air flight plan profile, in the assigned airway, squawking Mode III 6760, on a continuous ascent in altitude from take-off at Bandar Abbas to shoot-down".
The situation with warplanes on a combat mission near an international border being warned (if that was indeed the case), is not comparable to a commercial aircraft shoot down while in assigned civilian tracks (IR655, MH
[Edited 2015-11-25 11:52:02]