The first demonstration of the "Tenryū" team, (named after the Tenryū River near the air base), was on 4 March 1960 at Hamamatsu, the name was found to be hard to pronounce in western languages, so the team was renamed Blue Impulse. The aircraft were equipped with smoke generators using five different colours 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.