I can confirm that Sentry Savannah is happening, albeit a couple months later than usual. The 165th AW said some things about it on their Instagram story.
02/25/2021:
1-) Israeli G550 CAEW (N552GD) was parked in front of the mods hangar, replacing N584GA
2-) USAF C-37B (09-0525, if I'm not mistaken) was at the service center
02/16/2021: 1-) The JCG G550 (JA502A) was still parked outside of the service center, although it appears to have been rotated 180 degrees after last week. I was informed that it's most likely serial 5616 (N516GA) and it will be ferried out to the Netherlands for modifications in the coming weeks. 2...
02/07/2021: 1-) KC-135T (59-1471) was parked near the local CAP building. The Air Dominance ramp is no longer visible since they put up some dark mesh-type material on the fence. 2-) 3 UH-60s took off in formation (the numbers on the tails were 0-26890, 0-26967, and 0-26966). I'm not the best with A...
01/31/2021:
1-) The future Israeli Eitam (N552GD) was briefly pulled out of the hangar for an engine run
2-) The future Aussie Peregrine (N584GA) was still outside the modifications hangar and was briefly started up for some checks shortly after the Israeli jet was pulled back into the hangar
01/30/2021: 1-) Algerian Air Force G-IV(SP) (7T-VPM) was noted on a run-up pad doing some engine runs 2-) Chilean Air Force G-IV (912) was at the service center 3-) 3 US Navy T-6B Texan IIs were at the FBO: 166023, 166232, and 166217 4-) USAF KC-135R (63-8008) arrived shortly before sunset; equipped...
01/23/2021: 1-) The future Israeli Eitam (N552GD) is still sitting out in the open 2-) A previously unseen/un-noted G550 CAEW (N967GA) was towed into a hangar near the G700 buildings. There was another G550 in the hangar but I was unable to read off the registration. 3-) A Gabonese Government G650ER...
01/17/2021:
1-) The G550 CAEW "Eitam" (N552GD) was still parked outside the mods hangar
2-) The KC-135R was also in the same position as last night
3-) Tanzanian Government G550 (5H-ONE) was noted partially sticking out of a hangar at the Gulfstream service center with engines removed
01/16/2021: 1-) USAF KC-135R (57-2603) was parked near the local Civil Air Patrol building 2-) USAF C-37A (01-0030) departed as "VALOR30," the same callsign under which it arrived a couple weeks ago 3-) A future Israeli Air Force G550 CAEW "Eitam" (N552GD) was seen parked outside the modifications h...
A Nigerian Air Force Gulfstream G550 (5N-FGW) was at the service center last night, 01/09/2021. The Tanzanian Government G550 (5H-ONE) was parked nearby.
1-) A USAF C-37A (01-0030) landed on 01/03/2021 and was noted at the Gulfstream service center. 2-) A green G550 (N584GA) has been over by the G700 hangars for the past month or so. It's registered to the USAF, despite the Gulfstream registration, but is listed as a future MC-55A Peregrine for the R...