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
Propeller zero slip in the water, whether this is a very large propeller or a huge drag device, approaches 100% Froude efﬁciency. The essence of the actuator-disc theory is that if the slip is deﬁned as the ratio of ﬂuid velocity increase through the disc to vehicle velocity, the Froude efﬁciency is equal to 1/(slip + 1). Thus a lightly loaded propeller with a large swept area can have a high Froude efﬁciency. An actual propeller has blades made up of sections of helicoidal surfaces which can be thought to 'screw' through the fluid (hence the common reference to propellers as