| 1960 | e An Tostal USAS 17 | - Round Robin's Windfall USAM 203 |
| 1961 | e An Tostal USAS 17 | - Round Robin's Tradewind USAS 80 |
| 1964 | e An Tostal USAS 17 | - Round Robin's Capriole USAM 360 |
| 1965 | e An Tostal USAS 17 | - Round Robin's Flying Saucer G 27 |
| 1968 | e An Tostal USAS 17 | - Round Robin's Windswept G 131 |
| 1970 | e An Tostal USAS 17 | - Round Robin's Ripple G 194 |
| 1973 | e An Tostal USAS 17 | - Round Robin's Wind Song USAM 897 |
| 1976 | e An Tostal USAS 17 | - Round Robin's Zephyr G 373 |