Bo, UStik, Wolfgang credits the Super Delfin (developed from the Delfin, crashed at an earlier WC) as the inspiration behind 'Superstar'. The 'SS1' article in an early RCM&E indicates that
Ssuperstar was a smaller, cleaned up Super Delfin. Seems that the same problem of getting enough power to fly the larger airframes was common. My best guess is that, for the europeans at least, the FAI engine size limits tended to restrict the model sizes that could be competitive, and as the FAI ran the Worlds, then everyone competing had this restriction, hence the proliferation of the 60", .60 engine models.
Evan

























.r