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Weaving on the straight
#8
(09-03-2019, 12:49 PM)James Blint Wrote:  Several parameters come into play, some cars generate slipstream up to 1.5s in long straight at really high speed (250-300), for example at Le Mans you would start to get some draft within that gap for those with high drag coefficients, but usually the tow becomes really significant under 0.5s (out of "dirty air")

Generally the rule is you can change line once in straight, not only for defending but also break the tow. It's in F1 regulations, as long as you are not too close

When one driver is completely ahead of another on a straight, they are permitted to make a move in one direction. This move can be of any size, within the track limits, and the move can be made as slowly or as quickly as the driver likes — they can jink suddenly to one side or they can spend an entire straight gradually shifting across the track. This rule is stated under sporting regulation 20.4

20.4 Any driver defending his position on a straight, and before any braking area, may use the full width of the track during his first move, provided no significant portion of the car attempting to pass is alongside his. Whilst defending in this way the driver may not leave the track without justifiable reason.
20.3 More than one change of direction to defend a position is not permitted. Any driver moving back towards the racing line, having earlier defended his position off-line, should leave at least one car width between his own car and the edge of the track on the approach to the corner.

5 times is cleary too much in one straight, but i can't remember anyone being penalized for it, Hamilton got some warnings once i think.


That is very interesting James, I haven’t done much racing at Le Mans etc so hadn’t even considered very high speeds giving tow from up to 1.5 seconds back.

I was under the impression that AC only gives you slipstream effect when at 0.5s or lower, pretty sure I read this somewhere a few years ago on the official forum and since then my experience has seemed to align with this theory, though that could be confirmation bias ofc Smile

When I am more than 0.5 behind I don’t even bother lining up with the car ahead as I just assume there is no benefit and I have never felt this hinder my performance.
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Messages In This Thread
Weaving on the straight - by Bram Harmsen - 09-03-2019, 11:51 AM
RE: Weaving on the straight - by Pawel Kusmierek - 09-03-2019, 12:01 PM
RE: Weaving on the straight - by James Blint - 09-03-2019, 12:49 PM
RE: Weaving on the straight - by Alex Leif - 09-04-2019, 05:29 PM
RE: Weaving on the straight - by James Blint - 09-05-2019, 10:07 AM
RE: Weaving on the straight - by Kaden Russel - 09-03-2019, 09:20 PM
RE: Weaving on the straight - by Pawel Kusmierek - 09-03-2019, 09:30 PM
RE: Weaving on the straight - by James Blint - 09-04-2019, 03:17 AM
RE: Weaving on the straight - by Pawel Kusmierek - 09-04-2019, 03:43 AM
RE: Weaving on the straight - by Michal Janak - 09-04-2019, 08:10 PM
RE: Weaving on the straight - by Steen Toudal - 09-05-2019, 07:50 AM
RE: Weaving on the straight - by Martin Smith - 09-05-2019, 02:13 PM

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