'Operation Fido' to combat fog is demonstrated at Arcato, California.
Unused / unissued material - dates and locations unclear or unknown.
Fog landing light (Operation FIDO). Arcato airfield in the United States of America.
L/S elevated view of the airfield. C/U on a panel board switches are turned on which light oil flares on each side of the runway. L/S and C/U the flares burning. M/S a plane lands aided by the flares.