Transactions section: The scientific basis for the New British system of cockpit lighting

The new British system uses ultraviolet for the illumination of the instrument markings and red floodlighting for the general illumination of the cockpit. The scientific basis for this system, which is known as the dual system of cockpit lighting, is discussed, and some details of the fittings are given. Particular emphasis is laid on the layout of the cockpit, correct layout being regarded as the most important single factor for the success of the whole system.