Triumph Motor Company an image of what a new version of the TR4 might look like. BMW has not commented officially on this. Globe Pre-war Triumphs carried a stylised Globe badge, usually on the radiator grille, and this was also used on the first three models produced under Standard's control. Griffin Standard had introduced a new badge in 1947 for their own models, first seen on the Vanguard, a highly stylised motif based on the wings of a Griffin. With the introduction of the TR2, a version of this badge appeared for the first time on the bonnet of a production Triumph, while
Ducted propeller reducing pressure. This lowers thrust and torque of the propeller. At the same time, a circulation occurs, resulting in an inward aimed force, that has a forward component. The duct therefore has a positive thrust. This is normally larger than the thrust reduction of the propeller. The small clearance between the propeller and duct reduces tip vortex, increasing efficiency. As drag increases with increasing speed, eventually this will become larger than the added thrust. Vessels that normally operate above this speed are therefore normally not fitted with ducts. When towing, tugboats sail with low speed and heavily loaded propellers, and