Home » 224 MI Bn » Some Speculation About the MC-12Ws and MC-12Ss at Hunter AAF

Some Speculation About the MC-12Ws and MC-12Ss at Hunter AAF

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Savannah – Over the last few months, there have been two versions of the MC-12 at Hunter AAF. There have been 224 MI Bn MC-12Ws and EMARSS MC-12Ss. The MC-12Ws are former USAF MC-12W Liberty aircraft that seem to have replaced the RC-12s that the 224th used to fly.  Since the MC-12Ws arrived last year, I have not heard or seen RC-12s. The MC-12W is an intelligence, surveillance and reconnaissance (ISR) platform utilizing electro-optical/infared (EO/IR) systems. The MC-12Ss are EMARSS – Enhanced Medium Altitude Reconnaissance and Surveillance System aircraft (EMARSS is the program that has replaced the Aerial Common Sensor program, which was the program that was to replace the RC-12 Guardrail program). The EMARSS aircraft combine the EO/IR capability of the Liberty aircraft with communications intelligence (COMINT) systems.

Two MC-12s have been in use: 10-00739 and 10-00742. There have been four MC-12Ss: 11-00265, 11-00266, 11-00267, and 11-00268. Mode-S codes for them are:

  • AE4C61 – MC-12W, 10-00739, B/224 MI Bn
  • AE4C62 – MC-12W, 10-00742, B/224 MI Bn
  • AE58B4 – MC-12S, 11-00265, EMARSS
  • AE58B5 – MC-12S, 11-00268, EMARSS
  • AE58B6 – MC-12S, 11-00266, EMARSS
  • AE58B7 – MC-12S, 11-00267, EMARSS

As far as the EMARSS aircraft go, 11-00265 and 11-00267 have been seen/heard a lot and 11-0268 has been seen/heard only sporadically, but there seems to have been at least two and often three of the MC-12Ss at Hunter as of late. While no doubt they’ve been related, there has been some separation: the MC-12Ws have flown as SUNNY ## while the MC-12Ss have flown as EMARS ##. As of last week, that is no more. Two of the MC-12Ss were flown with a SUNNY callsign on three days: 21 October 2015, 22 October 2015, and 23 October 2015. I caught the 23 October flight on both Mode-S and radio and found the other two instances by searching my RadarBox logs:

  • AE58B7 – MC-12S, 11-0267, EMARSS flew as SUNNY 66 on 10/22/15, 10/23/15
  • AE58B6 – MC-12S, 11-0266, EMARSS flew as SUNNY 66 on 10/21/15

The 224 MI Bn was formerly in the COMINT business with their RC-12s, so perhaps they’ve been training to take on the MC-12S mission during the EMARSS flights over the last few months? It would follow on that if that were the case, maybe some of the MC-12Ss above will become B/224 MI Bn aircraft?


2 Comments

  1. Peter Levesque says:

    The C-12 airframe has long been taxed by load demands. I’ve loved my many hours ln both RC and C models, but it still is very limited.
    Hi Mac, hpoe all is well. Peter, KJ4FAW

  2. KF4LMT says:

    I should have mentioned it in the post, but while the RC-12s were King Air 200s, the MC-12s are 350s. I imagine the use of the King Air in these situations is a lot like how the Crown Vic was the go-to car for fleet cars. Anyway, the distinctive engine note makes it easy to ID what’s coming in when they fly by the house whether I’ve got a radio on or not!

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