(09-06-2015, 09:33 AM)Douglas Bay Wrote:

(09-06-2015, 08:56 AM)civ Wrote: Yes, it's that accurate.

Serious question. How do you know it is that accurate. How do you know it is more accurate than the equipment on the bikes. The simple fact is you do not know.

It is impossible for any two instruments to read exactly the same, and to be calibrated the same. Impossible.

There must be a ± tolerance. Maybe there is an agreed tolerance, but if not it makes a total farce of the whole procedure.

The pit lane speed measurement is done using the same transponder on the bike (and detection loops under the road) that is used for race timing. If you accept that said transponders are accurate enough to give lap & race speeds to 3 decimal places at speeds approaching 200mph then they ought to be accurate to one decimal place for something travelling at less than 40mph. The pit lane speed measurement system is active right through Practice Week and all the teams can use the readings from it to set/adjust their pit lane speed limiters on the bikes. Remember the limiter works by controlling the engine RPM to a set value, not controlling by the bike to a set speed. Therefore the ground speed when the pit lane limiter is operative can be altered on any bike by changing the sprockets.