Airspeed Adjustment Module for Course Setting Bomb Sight RAF F-106 Battleship USS South Dakota (missing

Battleship USS South Dakota (missing parts)

The ARN-7 system (see diagram)

and three navigator dividers

On this style of air speed indicator

the signal received was a stream of dots or dashes and he corrected his course until the signal changed to a steady pulse

Airspeed Adjustment Module for Course Setting Bomb Sight RAF F-106 Battleship USS South Dakota (missingWe have been advised that this item is an Airspeed Adjustment Module for use with early versions of the British RAF's Course Setting Bomb Sight (aka Wimperis). We do not have corroborating information. A photo of such a sight is in the photo gallery, indicating where this module would be installed, however, what is pictured is not the exact module shown here. Measures ~ 5 inches long and 4 inches wide. Made of metal.