George Bayliss Lothian George Bayliss Lothian George Bayliss Lothian was born November 20, 1909 in Vancouver, British Columbia, Canada. He was one of the first pilots of Trans-Canada Air Lines in 1937, which later became Air Canada. He died February 13, 2000. George Lothian was the first Canadian pilot to log 100 aircraft crossings of the North Atlantic and set the trans-Atlantic crossing speed record three times. When he retired from Air Canada in 1968 he had logged over 21,000 as pilot in command of many different piston and jet transport aircraft. He reluctantly gave flight instruction in the Vickers Viscount turboprop airliner
Turboprop Kaman's K-125 synchropter, which used a Boeing T50 turboshaft engine to power it on 11 December 1951. Compared to turbofans, turboprops are most efficient at flight speeds below 725 km/h (450 mph; 390 knots) because the jet velocity of the propeller (and exhaust) is relatively low. Modern turboprop airliners operate at nearly the same speed as small regional jet airliners but burn two-thirds of the fuel per passenger. However, compared to a turbojet (which can fly at high altitude for enhanced speed and fuel efficiency) a propeller aircraft has a lower ceiling. The most common application of turboprop engines in