MG Motoring 2019 March 2019 WEB - opt | Page 38

MG Car Club of South Australia THE LIFE OF BRIAN’ S THEORY A RETROSPECTIVE LOOK AT AN MGA IN FULL FLIGHT Written by Graham Byass in collaboration with Brian Lee T he vehicle, a white MGA, was pur- chased by Brian Lee in the 60s, from Bob Bazzica. Brian never intended to use the MG for any purpose other than his personal pleasure. His inquisitive nature got the better of him while he was studying motion phys- ics during his teaching degree at Flinders University in the 60s. The white MGA SA 23-492 , was to be the perfect subject for a series of experiments relating to the physics of launching objects from an in- clined plane. It was, as the sales bro- chure stated “ a perfectly balanced piece of machinery from front to back.” With his fellow students, Brian soon real- ised that the perfect launching ramp ex- isted within the university grounds, a road out of sight, no traffic, and with a small hill at its crest, followed by a hori- zontal landing strip. The angle of the in- cline was just about perfect – although it could not be varied without major con- 36 struction engineering works –not an option. The vehicle needed to be accelerated to various speeds to measure the ef- fects of forces needed to actually launch it into the air – all four wheels needed to be off the ground and the MGA needed to move through the air whilst remaining perfectly level, to prove Brian’s theory. The day of the experiment was perfect weatherwise – no rain, no wind, and mild summer temperatures – outside influences would be minimal. The first of 4 runs at a launch speed of 30 mph achieved almost no launch at all, and it was not until the third run at 60 mph was recorded, that the desired “4 wheels off the ground affect” was achieved – but not quite enough to prove Brian’s theory. The wheels needed to be further off the ground, and so a final approach at 75 mph was