Speed Limiters?

[sherbertdip]

I was on the A34 heading north on the lumpy bits between Newbury and Oxford last week.

I was overtaking a line of lorries which were just getting on with work, on the last down hill stretch the foremost truck which had been leapfrogging the others a bit started to accelerate down the hill, I kept pace with him to an indicated 80mph - no porkies there!

At that point he was still accelerating so i let him go and pulled in behind him, it was a Polish registered truck, i caught him up again where on the flat he was still doing an indicated 65mph.

My question is: Do commercial vehicles have speed limiters that can be overridden?

Cheers

[sherbertdip]

That would explain why i was passed by an Irish truck on the outside lane of the M5 a few years ago, he wasn't hanging about either

I asked my brother in law who is a HGV driver about that, he just laughed and shrugged his shoulders say most Eire drivers are like that.