The Vertical Bend?

[slowinfastout]

I'll start by asking a simple question..

So what is the correct approach speed for a vertical bend?

[StressedDave]

One that will enable you to stop in the distance you can see to be clear and can generate enough cornering force taking into account the reduction in wheel load due to the vertical curvature of the corner.

[ph123]

Does it go up? Does it go down? Does it go straight ahead, or left or right. And does it go up when it goes left and down when ... or ... ?
Are we flying yet?

Edited by ph123 on Thursday 1st February 07:09

[jacko lah]

Lucas Used to have a BANKED Bend at 45 degrees at Fen End in Warwickshire. Do Prodrive own it now ?

I think the idea was FLAT OUT !!!

[tigger1]

slowinfastout said:

I'll start by asking a simple question..

Ok, fire away...

slowinfastout said:

So what is the correct approach speed for a vertical bend?

You what!? 127mph.

[slowinfastout]

So your travelling down a country road around the NSL and you can see your appoaching a blind virtical bend. The signs are showing the 'bridge' that you are going to go over but no other road markings or signs. So do you go from near NSL to crawling pace and therefore linking speed with distance, slow down to a more reasonable speed or continue taking note of what will be happening to the car as it goes light over the crest?

[Mattt]

Do you hypothetically know the road or not?

[Strangely Brown]

Surely that's largely elephant.

Speed must be linked to vision. If you can't see, you can't go.

The fact that you know every granule of tarmac in the road and it was clear when come through 10 minutes ago is no guarantee that Mr Rover 75 flatcap hasn't stopped to admire the view just out of sight.

Or have I missed something here...

[Mattt]

I agree, in reality most people will drive faster round a bend they know than one that they don't, rightly or wrongly.

Although the question is about correct approach speed, so reality is largely irrelevant here

[Strangely Brown]

Ahhh... well.... since you put it like that the correct approach speed depends entirely on how well you can "knock it orf!"

[gridgway]

jacko lah said:

Lucas Used to have a BANKED Bend at 45 degrees at Fen End in Warwickshire. Do Prodrive own it now ?

I think the idea was FLAT OUT !!!

Yep still there and owned by Prodrive now.
Graham

[Big Fat F'er]

slowinfastout said:

So your travelling down a country road around the NSL and you can see your appoaching a blind virtical bend. The signs are showing the 'bridge' that you are going to go over but no other road markings or signs. So do you go from near NSL to crawling pace and therefore linking speed with distance, slow down to a more reasonable speed or continue taking note of what will be happening to the car as it goes light over the crest?

Imagine you are travelling down a country road, NSL, and you approach a blind right hand bend. You cannot see around it, through it, over it, under it. In other words, all you can see clearly is up to the limit point.

At what speed would you approach and then neogtiate the corner.

The answer will give you the answer you seek.

BFF

Edited by Big Fat F'er on Sunday 4th February 18:00

[slowinfastout]

Thanks BFF. Spot on.

[jacko lah]

gridgway said:

jacko lah said:

Lucas Used to have a BANKED Bend at 45 degrees at Fen End in Warwickshire. Do Prodrive own it now ?

I think the idea was FLAT OUT !!!

Yep still there and owned by Prodrive now.
Graham

YEARS ago when it was still owned by Lucas I and a collegue from another Site were at a meeting there. A guy called Dave Walpole organised a trip around the test track and across the skid pan for us. I have to say it was an enjoyable morning.