Raw footage, Eastman color, silent, shows assembly of an axial hose reel drive for aerial refueling. The unit is tested on an A-4 Skyhawk at what appears to be Mojave Airport or Edwards AFB.
Related Internet article: “A-4Fs in non-military markings were used in 1982 tests of Fairchild Republic Company’s in-flight refueling system pod, mounted on the center station of the lead aircraft. The FRC refilling design uses a unique axial hose reel drive that offers, operational simplicity and uses 25 percent fewer parts than earlier transverse reel pod. The new pod transfersat the rate of ‘up to 450 (US) gallons per minute.”