• U.S. Army Sikorsky XR-4 Serial No. 41-18874.

11 mins colour silent film showing the flying qualities of the U.S. Army Sikorsky XR-4 Serial No. 41-18874.

A young woman is filmed collecting a small package from the helicopter and a man is then seen climbing up a rope ladder into the helicopter the whilst in flight. The film then continues showing the flying qualities of the VS-300A NX 28996 with Igor Sikorsky at the controls with the XR-4 in the background. A man is then seen descending down a rope ladder from the XR-4 . The same stunt is then performed using a single rope. The film then concludes with the XR-4 flying close to the ground with two men hanging onto the airframe.; ; This appears appears to have been made on the same occasion as is shown in the first half of NAL 906 018 but with different footage and more close-up views.