by NathanE » Thu May 31, 2007 4:30 pm
[quote="RichardR"]
Hi Jon
Yep, saw the banking near the rally stage, though it wasn't used. Must have been more than 60degrees - did you actually drive on it?!
There's quite a few future dates:
http://www.driverdp.com/dates.htm
[/quote]
Hmm, having never seen the facility, i shouldn't question you Richard, but 60 degrees sounds a bit unrealistic.
I have quite a bit of experience of lapping on banked oval tracks, although generally at c60km/hr on two human powered wheels rather than under the influence of petrochemicals!
The steepest velodrome that I know of is 47 deg, and that is pretty much impossible to walk up. When you first see the slopes they look much steeper than they actually are. If my brain was in gear at the moment, which it obviously isn't 'cos I'm at work, I could work out how fast you would need to drive on 60 degree banking to avoid falling off. Unless the radius of the turn was seriously tight I think that the speed would be unsustainably high. To give a comparison, you can't ride 47 deg banking with a 5m radius at less than about 20mph, the bigger the radius the faster you have to go.
sorry, not trying to be a smart arse so don't take the comment badly.
[quote="RichardR"]
Hi Jon
Yep, saw the banking near the rally stage, though it wasn't used. Must have been more than 60degrees - did you actually drive on it?! :o
There's quite a few future dates: [url=http://www.driverdp.com/dates.htm]http://www.driverdp.com/dates.htm[/url]
[/quote]
Hmm, having never seen the facility, i shouldn't question you Richard, but 60 degrees sounds a bit unrealistic.
I have quite a bit of experience of lapping on banked oval tracks, although generally at c60km/hr on two human powered wheels rather than under the influence of petrochemicals!
The steepest velodrome that I know of is 47 deg, and that is pretty much impossible to walk up. When you first see the slopes they look much steeper than they actually are. If my brain was in gear at the moment, which it obviously isn't 'cos I'm at work, I could work out how fast you would need to drive on 60 degree banking to avoid falling off. Unless the radius of the turn was seriously tight I think that the speed would be unsustainably high. To give a comparison, you can't ride 47 deg banking with a 5m radius at less than about 20mph, the bigger the radius the faster you have to go.
sorry, not trying to be a smart arse so don't take the comment badly.