the design they had sold to Locomobile, the Stanley brothers developed a new model with twin-cylinder engines geared directly to the rear axle. Later models had aluminium coachwork that resembled the internal combustion cars of the time, but they retained steam-car features by having no transmission, clutch, or driveshaft. They also had a fully sprung tubular steel frame. When they later moved the steam boiler to the front of the vehicle, the owners dubbed it the "coffin nose." The compact engine ran at considerable steam pressure, with the boiler described in 1912 as having the safety valve set at , with the burner set to automatically cut back when pressure reached . The twin-cylinder steam engines were at that time 10 horsepower, with bore and stroke, and with bore and stroke, and made extensive use of ball bearings. In order to improve range, condensers were added from 1915. A Stanley Steamer set the world record for the fastest mile in an automobile (28.2 seconds) in 1906. This record () was not broken by any automobile until 1911, although Glen Curtiss beat the record in 1907 with a V-8-powered motorcycle at . The record for steam-powered automobiles was not broken until 2009. Production rose to 500 cars in 1917. The Stanley Steamer was sometimes nicknamed "The Flying Teapot". At least one Stanley Steamer found its way to Castle Hill, New South Wales, Australia where it was driven in the late 1920s. Obsolescence During the mid to late 1910s, the fuel efficiency and power delivery of internal combustion engines improved dramatically and using an electric starter instead of the crank, which had been notorious for injuring its operators, led to the rise of the gasoline-powered automobile, which also was much cheaper. The Stanley company produced a series of advertising campaigns trying to recover the car-buying public away from the "internal explosion engine," but it was unsuccessful. Their advertising slogan was, "Power – Correctly Generated, Correctly Controlled, Correctly Applied to the Rear Axle." These were early examples of the fear, uncertainty and doubt advertising campaign, since their aim was not to convince buyers of the advantages of the Stanley Steamer but to suggest that internal combustion automobiles could explode. Sale and closure Francis died in 1918 when he steered his car off the road into a woodpile while attempting to avoid farm wagons travelling side by side. After his death, Freelan sold his