Vincent Black Knight Prince. For anyone other than a knowledgeable Vincent enthusiast, they would not notice the difference as externally, both models are nearly identical. The most readily noticeable difference is in the emblem on the front and rear fenders/wheel covers, and on the "dashboard". The emblem consists of a Vincent scroll, with the model name (Black Knight or Black Prince) below the scroll and a graphic just above the scroll. For the Black Knight, the graphic is an axe; for the Black Prince, the graphic is a helmet. Vincent Black Knight The Vincent Black Knight is a British motorcycle made between 1954
Black Prince (rocket) Aerospace author C.N Hill wrote that this declaration had been made: "Mainly, I suspect, to minimise the political damage that ensued from the [Blue Streak] decision". The 1957 concept design for a combined Blue Streak-Black Knight launcher was put forward once again, and this time received a favourable appraisal; the project was assigned the rainbow code of "Black Prince". In official documentation, the platform was referred to as the "Blue Streak Satellite Launch Vehicle" (BSSLV). The development of Black Prince was driven by the conjunction of the RAE and two private firms, aerospace manufacturer Saunders Roe and engine firm Bristol