Year | Power | Area | Weight (minimum unless stated) | Minimum cross-section |
Time | Launch | Other |
1928 | any | unlimited | 11 lb maximum | L2/100 | best of 3 | ROG | |
1934 | rubber unlimited | wing area 190-200 ins2 |
4 oz | L2>/100 | average of 3 | ROG | |
1937 | rubber unlimited | wing area 190-200 ins2 |
8 oz | L2/100 | average of 3 | ROG | |
1938 | rubber unlimited | +stabilizer 33% | 8 oz | L2/100 | average of 3 | ROG | |
1951 | rubber unlimited | 294 ins2 total (19 dm2) |
8 oz | 10 sq in | 3x5 min | ROG | |
1954 | rubber 80g | 19 dm2 | 8 oz | 10 sq in | 3x5 min | ROG | |
1957 | rubber 50g | 19 dm2 | 8 oz | unlimited | 5x180 sec | Hand Launch | |
1965 | rubber 40g | 19 dm2 | 190g | unlimited | 5x180 sec | HL | |
1969 | rubber 40g | 19 dm2 | 190g | unlimited | 7x180 sec | HL | |
1988 | rubber 40g | 19 dm2 | 190g | unlimited | 7x180 sec | HL | Rescind B.O.M. |
1996 | rubber 35g | 19 dm2 | 195g | unlimited | 7x180 sec | HL | Ban rubber heating |
2002 | rubber 30g | 19 dm2 | 200g | unlimited | 7x180 sec | HL |