Nothing on the Ugandans
00981C ZS-JCT, Beech 1900D, c/n UE-088, Balmoral Central Contracts SA (Pty) Ltd
00A102 ZS-MMJ, Beech 1900D c/n UE-092, Balmoral Central Contracts SA (Pty) Ltd
00BD6D was once ZS-XGE but became S2-AAT, BAe 748-351/2A, c/n 1770/252, Best Aviation in April/May 2010.
Cant find any details re the hex for your KC-135 any where.
Alan