John Daley - for your consideration: AUSTRALIAN HISTORIC TT AND GP
RACE CATEGORY SPECIFICATION
Definitions:
The term ‘tourist trophy’ (TT) machine means a fourstroke motorcycle with one or two cylinders, regardless of ‘period’ however with ‘cutoff date’ of 1982.
The term ‘grand prix’ (GP) machine means either a twostroke motorcycle, or a fourstroke motorcycle with more than two cylinders, regardless of period however with a ‘cutoff date’ of 1982.
1. The term ultralightweight class means a race class for motorcycles of less than 125cc capacity.
2. The term lightweight class means a race class for motorcycles of less than 250cc capacity.
3. The term junior class means a race for motorcycles of capacity more than 125cc and less than 350cc.
4. The term senior class means a race for motorcycles of capacity more than 250cc and less than 500cc.
5. The term Formula 750 class means a race for motorcycles of capacity more than 350cc and less than 750cc.
6. The term Unlimited class means a race for motorcycles of capacity more than 500cc and less than 1300cc.
Draft Race Programme
Race No 1 Ultralightweight TT
Race No 2 Ultralightweight GP
Race No 3 Junior TT
Race No 4 Junior GP
Race No 5 Formula 750 TT
Race No 6 Formula 750 GP
Race No 7 Lightweight TT
Race No 8 Lightweight GP
Race No 9 Senior TT
Race No 10 Senior GP
Race No 11 Unlimited TT
Race No 12 Unlimited GP
Notes . The separation of machines into the two categories (TT and GP) achieves what was previously desired by the use of ‘periods’. It may be necessary to run heats in some classes. The GCRs related to fuel must still apply, methanol may not be used in machines later than 1972 manufacture. There must be no restrictions applied on the basis of ‘period’, only the ‘cutoff date’ shall apply – nominally 1982. Entries should be accepted on the basis that competitors nominate for the class(es) in which they want to compete.
Let's do some REAL historic racing? If we add a TT and a GP sidecar class, junior and senior,(four extra races) we should be able to comfortably fill in a day's racing. Historically the Australian TT was always held over six laps of the host circuit. It was the main Australian motorcycle event in any year. Cutoff date for the Australian Historic TT should be whatever is allowed as latest for period 5. The guys with P5 bikes can use slicks, those with P4 bikes can use methanol. All bikes should be logbooked in at least one 'period'.
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Posted - 31 Aug 2009 : 10:11:38 AM
