|
They are angle markings for use when the aircraft take off ramp is in use.
On Benbow, and others, a pair of rails was clamped to the barrels of either B or P turrets. Other ships and US ships used a similar apparatus to suit the aircraft and the turret.
The aircraft was hoisted in place and the turret turned to the angle measured for wind direction using the markings shown.
The aircraft was then launched into the wind.
The system was first used from HMS Repulse in October 1917.
__________________
The Mad Landsman
|