1973 Christmas present Graupner kit. Launched February 1974 and sailed for a couple of years fitted with McGregor 3 channel 27meg radio. Consigned to attic where it remained for next 35 years! Relaunched 2009 with original motor and radio still going strong. Motor finally packed up 2010 so decided to "upgrade" with new power unit and 2.4 gh spectrum receiver to match my other models. (Motor: monoperm) (ESC: viper) (9/10)