1010L/1510Z: SODA 81 (KC-135R, Knoxville/TN ANG) is westbound in the block FL200 to FL220 dragging what sounded like HUCK 41 x 2 (???). YL in the lead plane. Boom freq is 289.8 and A/A while not on the boom is 258.175 SODA 81 is using a mixture of V/UHF ATC freqs: Memphis Ctr 263.1>353.5>379.25>134.65 Joe Nashville, Tn.