Blue Impulse for each aircraft: white, red, blue, green and yellow and painted in silver, light blue, blue and pink; on the leader's aircraft, the blue is replaced by gold. Later, in 1961, all five aircraft received a special paint scheme of overall white with blue flashes. In 1964, Blue Impulse performed at the opening of the 1964 Summer Olympics in Tokyo, drawing the Olympic rings in the air with coloured smoke. In 1970, at the opening of Expo '70 in Osaka, the team drew "Expo '70" in the air. In February 1982, after 545 air demonstrations, Blue Impulse replaced the Sabres
Of the Blue Colour of the Sky in producer Dave Fridmann's Tarbox Road Studios, a converted Amish barn in Cassadaga, New York, through May the following year. Bassist Tim Nordwind described the process of the studio sessions as a midpoint between the slick production work done on "OK Go" and the emphasis on live takes with the recording of "Oh No". "Of the Blue Colour of the Sky"'s accompanying booklet presents the album as a concept based on an unnamed passage from "The Influence of the Blue Ray of the Sunlight and of the Blue Colour of the Sky" by General A.J. Pleasonton. The title of this