C-17 gets clean Published Oct. 26, 2020 By Airman 1st Class Azaria E. Foster Joint Base McGuire-Dix-Lakehurst Public Affairs JOINT BASE MCGUIRE-DIX-LAKEHURST, N.J. -- Aircraft wash specialists clean the C-17 Globemaster III fleet every 180 days. Components of the aircraft are lubricated during a 7-hour wash period to prevent corrosion and promote aerodynamics.