Knot (unit) fluids (tidal streams, river currents and wind speeds) are also measured in knots. Thus, speed over the ground (SOG) (ground speed (GS) in aircraft) and rate of progress towards a distant point ("velocity made good", VMG) are also given in knots. Until the mid-19th century, vessel speed at sea was measured using a chip log. This consisted of a wooden panel, attached by line to a reel, and weighted on one edge to float perpendicularly to the water surface and thus present substantial resistance to the water moving around it. The chip log was cast over the stern of the
Speed of the Wind driver. During testing, the car appears to have run, although not competitively, at either Brooklands or Montlhery. Speed of the Wind was built for long-duration speed records, which were the domain of Ab Jenkins and the Bonneville salt flats of Utah. Jenkins was fond of competition and was instrumental in encouraging British teams to travel to Bonneville. In September 1935, shortly after Campbell's 300 mph record with Blue Bird, Eyston broke Jenkins' 24-hour record and raised it to For the 1936 season, Jenkins created the Mormon Meteor by fitting a Curtiss Conqueror V12 into his previous Duesenberg chassis. Eyston returned,