A Grand Forks AFB tanker, the Boeing KC-135R 'Stratotanker' performs at the ND Centennial Air Show at the old Hector Airport terminal, Saturday 8/19/1989.
Photo by Bob Nelson.
These 1960 era tanker aircraft were also changed, in 1983 from KC-135A to KC-135R, which flew from Grand Forks until 2010 when the GFAFB lost its refueling mission.