Does anyone know what the Small Capital Letters ' A' on the front fairing and 'T' on the tail fairing, both beside the numbers mean on the OKI RVF750?

http://f.hatena.ne.jp/Blueforce/20070720010244

'T' often refers to the 'spare' vehicle if the rider/driver is lucky enough to have a backup... not sure about the 'A', or if that's right in this case anyway....

I would like to know too...just curious like.

That pic has an A and a T..so ???

The A is probrably the class for example in endurance races the TTF3 classes were often split into A B & C classes

I know that the different classes in current World Endurance Road Racing Championship races use same white numbers on different coloured backgrounds for the differing classes as follows:
Formula EWC White numerals on a Black background
Superstock White numerals on a Red background
Open White numerals on a Green background.

I don't know if this was applicable in the early 90's when this bike raced?