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 4.5-inch Medium Field Gun BL 4.5-inch Medium Field Gun The BL 4.5 inch Medium Gun was a British gun used by field artillery in the Second World War. It had nothing in common with the QF 4.5 inch Howitzer or the QF 4.5 inch AA Gun. By the end of 1930s, the World War 1-era BL 60-pounder of 1905 had reached the end of its usable service life within the ranks of the British Army. A successor was sought and work began on an all-new design that would result in the Ordnance BL 4.5" Medium Field Gun, a long range medium gun designed for