Spotlights - Low Altitude Flying Modification

A general arrangement drawing below, shows the spotlights used to judge the height of the aircraft. When the two beams met on the surface the aircraft was at 60 feet.

Spotlights - Low Altitude Flying Modification

DC72/28

This modification was designed by Benjamin Lockspeiser, the Deputy Director of Scientific Research at the Ministry of Aircraft Production, who recalled a proposed system to find in-shore submarines using aircraft fitted with searchlights. The fitting of the lights was made necessary after the special low level altimeter developed by EMI was found to be unreliable.

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