BTCC BTCC 2021 - Page 147

hen henths · 20 Jun 2021, 19:16 (Ref:4057474)

One thing I'm curious about from the onboard shots is I've noticed in some drivers' cars (not on the above video of Nic's though), while they're racing all of the warning lights on the display seem to rapidly flash in unison. I'm just wondering why they do that? My own guess would be that maybe they flash when a warning isn't active so that the driver can tell everything's working normally without having to take their eyes off the track, rather than just a single warning light coming on that might get missed. Anyone know the answer?

redshoes · 20 Jun 2021, 19:28 (Ref:4057475)

It's not noticeably to the naked eye but LED light do flicker. The strobing effect you are seeing is a combination of the refresh rate of the lights and the camera shutter speed. You might notice that the rear lights of some race cars also appear to strobe; Porsche Cup cars seems especially prone to this.

hen henths · 20 Jun 2021, 20:43 (Ref:4057502)

Quote:

Originally Posted by redshoes

It's not noticeably to the naked eye but LED light do flicker. The strobing effect you are seeing is a combination of the refresh rate of the lights and the camera shutter speed. You might notice that the rear lights of some race cars also appear to strobe; Porsche Cup cars seems especially prone to this.

Thanks for the explanation. That's interesting. I ought to have known that. I knew a similar effect is very noticeable in recordings of the old CRT screens but I wasn't really aware of it happening with LEDs.

S griffin · 21 Jun 2021, 10:06 (Ref:4057572)

It's quite interesting yes. Hopefully they can sort out the glitches in future, but it can happen from time to time

antnee · 21 Jun 2021, 12:39 (Ref:4057601)

I'm not sure it will be something that can be 'fixed' in the future - its the same as watching F1 wheels/tyres spinning and when it harmonises with the camera refresh rate they look like they aren't rotating.

You would fix it in post-processing for a movie, but far too much effort for sport.

crmalcolm · 21 Jun 2021, 13:04 (Ref:4057606)

Quote:

Originally Posted by hen henths

Thanks for the explanation. That's interesting. I ought to have known that. I knew a similar effect is very noticeable in recordings of the old CRT screens but I wasn't really aware of it happening with LEDs.

I think it is becoming increasingly common to notice due to improved frame rates of modern cameras. Apparently, there is a 'cure' - don't use as capable a camera.

Totally off topic - most LEDs fitted to cars are all of the same intensity; the different perceived brightness comes from duty cycle. So a brake light might be based on a 90% on/10% off cycle, whereas the same LEDs for a tail light are a 30% on/70% off cycle.

S griffin · 21 Jun 2021, 15:54 (Ref:4057633)

At least it should keep the problem monitored, but you can never make these devices perfect.

I think the technology of lights on tin tops has improved and should be applauded

redshoes · 21 Jun 2021, 16:39 (Ref:4057652)

Quote:

Originally Posted by crmalcolm

Totally off topic - most LEDs fitted to cars are all of the same intensity; the different perceived brightness comes from duty cycle. So a brake light might be based on a 90% on/10% off cycle, whereas the same LEDs for a tail light are a 30% on/70% off cycle.

The phase you are looking for is 'pulse-width modulation'.

The 'cure' is to not use LEDs and go back to incandescent bulbs. People always say the future is be brighter, but what they fail to mention is that the future is also more flickery.

Alfisti · 21 Jun 2021, 17:06 (Ref:4057655)

..and when your LED car lights die your wallet hurts. No more little bulbs for 50p, rather whole new lamp clusters for hundreds

**Adam43** · 23 Jun 2021, 01:35 (Ref:4057813)

They don’t often fail though. And they are brighter, which is generally better.

Of course, they can be damaged.

medius · 26 Jun 2021, 08:57 (Ref:4058260)

Just an idle thought but could teams get hold of the hybrid kit early then chuck it in an older shell and spent the year testing? Money permitting of course.

AnnoyedMoose · 28 Jun 2021, 09:06 (Ref:4058574)

Bushell has an offer to race for the rest of the season. Who is on the way out?

S griffin · 28 Jun 2021, 10:40 (Ref:4058600)

Quote:

Originally Posted by AnnoyedMoose

Bushell has an offer to race for the rest of the season. Who is on the way out?

Good question. All eyes on Twitter to find the clues

Racing Harz · 28 Jun 2021, 10:43 (Ref:4058606)

Quote:

Originally Posted by AnnoyedMoose

Bushell has an offer to race for the rest of the season. Who is on the way out?

Hopefully Neate...

Matt K · 28 Jun 2021, 13:27 (Ref:4058640)

Quote:

Originally Posted by AnnoyedMoose

Bushell has an offer to race for the rest of the season. Who is on the way out?

Or maybe Chilton? Maybe he's had enough already and wants to commit himself to the ETCR. This is not very likely but I wouldn't be completely surprised.

S griffin · 28 Jun 2021, 15:01 (Ref:4058666)

Quote:

Originally Posted by Matt K

Or maybe Chilton? Maybe he's had enough already and wants to commit himself to the ETCR. This is not very likely but I wouldn't be completely surprised.

Good call there. Most likely one I can think of atm

BTCC frog · 28 Jun 2021, 15:08 (Ref:4058669)

I think Glynn Geddie is the most likely candidate for two reasons. Firstly, he may be struggling for budget after the large Thruxton crash, and secondly, Mike Bushell has always had a good relationship with Team HARD, so it makes sense that he would go there. I am very pleased to see Bushell back; he is a very good driver. But obviously a shame for whoever he is replacing.

Evantra · 28 Jun 2021, 15:24 (Ref:4058672)

Quote:

Originally Posted by AnnoyedMoose

Bushell has an offer to race for the rest of the season. Who is on the way out?

Sounds like a pretty done deal, great to have him back. Hopefully replacing one of the backmarking group. Edwards is always one that has struggled for budget

AnnoyedMoose · 28 Jun 2021, 20:24 (Ref:4058734)

Quote:

Originally Posted by BTCC frog

I think Glynn Geddie is the most likely candidate for two reasons. Firstly, he may be struggling for budget after the large Thruxton crash, and secondly, Mike Bushell has always had a good relationship with Team HARD, so it makes sense that he would go there. I am very pleased to see Bushell back; he is a very good driver. But obviously a shame for whoever he is replacing.

Guess it depends on how much Neates contribution to the rebuild was.

Team HARD and Motorbase (AMD as was) does seem the most likely two destinations given his previous relationships.

Pdh · 28 Jun 2021, 20:39 (Ref:4058738)

Quote:

Originally Posted by AnnoyedMoose

Guess it depends on how much Neates contribution to the rebuild was.

Team HARD and Motorbase (AMD as was) does seem the most likely two destinations given his previous relationships.

Not sure it would be Motorbase. Can’t see jackson or hill going. Osborne family own the company and if it was neate why would he of come back at brands just to leave straight after

AnnoyedMoose · 29 Jun 2021, 07:27 (Ref:4058789)

Quote:

Originally Posted by Pdh

Not sure it would be Motorbase. Can’t see jackson or hill going. Osborne family own the company and if it was neate why would he of come back at brands just to leave straight after

I can see Neate going. He's had some time off, come back and maybe realised he doesn't miss it as much as he thought he would. Especially as his son is now old enough to race in the UK and is doing well. He might prefer to be a racer dad at weekends rather than trying to do both.

S griffin · 29 Jun 2021, 12:52 (Ref:4058827)

Quote:

Originally Posted by AnnoyedMoose

I can see Neate going. He's had some time off, come back and maybe realised he doesn't miss it as much as he thought he would. Especially as his son is now old enough to race in the UK and is doing well. He might prefer to be a racer dad at weekends rather than trying to do both.

Yes I was quite impressed with Aiden Neate's first race in F4. Not too shabby

S griffin · 29 Jun 2021, 19:37 (Ref:4058904)

Having thought more about the Bushell rumour and who he is going to replace, I personally would like to see him replace Smelt at Toyota. Sam has done nothing so far and hasn’t looked like he is going to improve anytime soon, so I would like to see Bushell make better use of that seat. Him and Butcher would be a good team

Matt K · 29 Jun 2021, 19:39 (Ref:4058907)

Quote:

Originally Posted by S griffin

Having thought more about the Bushell rumour and who he is going to replace, I personally would like to see him replace Smelt at Toyota. Sam has done nothing so far and hasn’t looked like he is going to improve anytime soon, so I would like to see Bushell make better use of that seat. Him and Butcher would be a good team

Agree on this but isn't Smelt quite essential to Speedworks' ability to run the second car?

S griffin · 29 Jun 2021, 19:54 (Ref:4058911)

Quote:

Originally Posted by Matt K

Agree on this but isn't Smelt quite essential to Speedworks' ability to run the second car?

If that’s the case, you have to ask what the point was on expanding to two cars with factory backing?

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