The trade was only just emerging from the stage when aero wheel brakes were merely adapted forms of automobile wheel brakes, and the aeroplane industry from the point of view of wheel brakes is now in about the same stage as the motor industry was with car brakes six years ago. In this respect the United States is very far ahead of us.

The aircraft industry is now realising, however, that the brake needs of an aeroplane have to be specially catered for, and it is to this end that research is being made, the ordinary motor car two-shoe brake being abandoned as inefficient.

The lecturer stated that the average reduction in the landing run of machines fitted with the modern Bendix-Perrot brake was 50 per cent., and that the fitting of brakes has the effect of assisting Ground Crew.