BL R-series engine BL R-series engine The R series is a line of petrol engines introduced by British Leyland in 1983 for the then-new Austin Maestro. It was only produced in one capacity—1.6 litres. The engine was essentially a lightly modified version of the E-series unit found in the Maxi and Allegro. The main differences over the older engine are to the sump and gearbox mounting flange, which were adapted to accept a traditional "end-on" transmission unit which had been bought from Volkswagen in place of the traditional BMC transmission-in-sump arrangement. The R series was mainly a stop gap, and had a very
BL Lacertae of a supermassive black hole. BL Lac objects are also categorized as a type of blazar. BL Lacertae changes in apparent magnitude over fairly small time periods between values of 14 and 17. Its location in the sky for epoch 2000.0 is at RA , DEC . BL Lacertae BL Lacertae or "BL Lac" is a highly variable, extragalactic AGN (active galactic nucleus or active galaxy). It was first discovered by Cuno Hoffmeister in 1929, but was originally thought to be an irregular variable star in the Milky Way galaxy and so was given a variable star designation. In 1968,