A model plane is used to show the effect of lightning striking a moving aircraft.
Introductory intertitle reads: "What happens if a 'plane is struck by lightning? This unique model experiment shows most strikingly just how the aircraft acts as a harmless conductor for the lightning bolt - "
Low angle shot of a model aircraft being struck by lightning - very odd. "Night demonstrates even more clearly the path of the flash - " Night shots of the plane being struck by lightning. Actually the plane looks quite realistic in these shots and at a push the footage could be used to illustrate a plane being struck by lightning at night.