United States Grand Prix 2021: Practice 3 team radio
45 radio messages were recorded during practice 3 at the United States Grand Prix 2021, across 16 drivers. Sebastian VETTEL had the most, with 5.
These are transcripts of real team radio audio, produced by speech recognition and presented as an archive rather than as edited prose. Radio is clipped and noisy, so wording can be imperfect. Each message is attributed to the driver or their engineer, and the original audio is playable in the archive.
Who was on the radio
- Sebastian VETTEL · Aston Martin · 5 messages
- Sergio PEREZ · Red Bull · 5 messages
- Pierre GASLY · AlphaTauri · 5 messages
- Charles LECLERC · Ferrari · 4 messages
- Fernando ALONSO · Alpine · 3 messages
- Lewis HAMILTON · Mercedes · 3 messages
- Mick SCHUMACHER · Haas · 3 messages
- Yuki TSUNODA · AlphaTauri · 3 messages
- Valtteri BOTTAS · Mercedes · 3 messages
- Carlos SAINZ · Ferrari · 2 messages
- George RUSSELL · Williams · 2 messages
- Daniel RICCIARDO · McLaren · 2 messages
- Max VERSTAPPEN · Red Bull · 2 messages
- Nikita MAZEPIN · Haas · 1 message
- Nicholas LATIFI · Williams · 1 message
- Lance STROLL · Aston Martin · 1 message
Every message, in the order it happened
Engineer: Track is clear.
Engineer: Expected the wind is about 15 kph tailwind out of one through the first sector.
Fernando ALONSO: You want DRS or no DRS? I'm happy not to use it.
Engineer: I'm happy without DRS.
Engineer: Check soon,
Lewis HAMILTON: Colin.
Engineer: Okay.
Engineer: Okay, how is balance?
Fernando ALONSO: All is clear.
Engineer: So we're keen to go to torque 7 just as a check in his wind conditions, torque 7.
Nikita MAZEPIN: The tyre temps are quite low, so I'm going to do a reasonably fast tap.
Engineer: Our target temperature is the same, so I'm not too worried. It's OK for now.
Engineer: So, turn 11 was all because of Hamilton, or was the car also tricky there?
Mick SCHUMACHER: It was because of, it seems like the car was
Engineer: very tricky. Okay, yeah, you had a big rear lock at the end, so we'll have a look at that.
Engineer: Alright, so I think we should go to shape 2, and brake balance 1, click rearward. And the shape 2 will help turn 11, and then the brake balance 1, click rearward will be for the other front locks.
Mick SCHUMACHER: Copy.
Engineer: And what else was it like, what was the balance like in the 3, 4, 5, 6? I think the
Mick SCHUMACHER: balance there was actually quite okay, it was decent, but I missed turn 1 a bit. With the wide way around, I felt that the front was on
Engineer: the
Mick SCHUMACHER: side to lock up,
Engineer: so
Mick SCHUMACHER: I just went straight. And then the last corner I had a bit of understeer, I think I'll just put the left toggle on for that.
Engineer: Yeah, it's worth a try. Okay, alright, we'll do another back off.
Engineer: and compared to Sainz we could improve minimum speed turn 8
Engineer: And Charles, manage at 35.7, improving in the last sector So
Carlos SAINZ: it's quicker than me in the last sector, yeah? Yeah All the way to?
Engineer: Okay, positive on the brakes. We'll go for another charge lap.
Sergio PEREZ: Yeah, and I also had some understeer at the end of the sector, last two corners.
Engineer: Okay, copy that.
Engineer: Aoki, Gasly is using 3rd gear, turn 1 and last corner, so 1 gear more. Turn 12, 2nd gear, 1 gear less.
Yuki TSUNODA: OK.
Pierre GASLY: Yeah, I find quite a lot of lap time when the balance is, the car feels a lot better, so I find a lot of time.
Engineer: I think we have pretty bad land spots. Copy, so box, box, box.
Engineer: Mode 12 and Delta off. Mode 12, Delta off.
Yuki TSUNODA: I think tyres are gone already from the sector 1, especially turn 8
Engineer: Understood UB, let's try another one, there is no downside, we just try
Sergio PEREZ: On my quick lap, I had a mega engine braking going into turn 1, right at the apex.
Engineer: I
George RUSSELL: feel good, I've just been a bit over-optimistic.
Engineer: Copy.
Engineer: everybody is very slow even with the double slope and I'm doing mistake sector one I think we should box but give me your feedback is anybody improving on their second lap though? negative negative 810 slower did George do a second lap? he tried and he spurned in high speed copy box so you go in you go in make sure keep the brakes in the window no threat behind and the traffic like yeah yeah no threat no threat and gather the V-limbs after turn 11
Engineer: Ok, we are going to be box, box Happy, we don't need the setup change and we move to the soft And we do a couple of practice starts
Pierre GASLY: Yeah
Engineer: Copy, you can keep the pace up Mode 12, charge off And we can go back to shape 3, Yuki is pushing now 3 behind, coming fast Ok, Yuki coming now, pushing, coming now
Engineer: Box, box, box, box.
Engineer: As we have some time, would you like to do a practice start?
Fernando ALONSO: Negative. I'm happy with the start as well. Happy to box.
Engineer: Copy, understood.
Engineer: Okay, so box box Actually staying on track that will cool all clear behind So
Valtteri BOTTAS: that
Engineer: so we'll need some full throttle on the cooldowns
Engineer: So main loss to Verstappen is almost saying lap time to him but 3 tenths into turn one
Lewis HAMILTON: Rear is very poor.
Engineer: OK, copy.
Charles LECLERC: Copy, lap times please.
Engineer: So Sainz lap time 34.8. Same win as before, tail into 3.45, 15 kph and we need a good warm up on the brakes for last part.
Engineer: So what do we do? Layer up or down, no need of start, we can layer up or down.
Engineer: Leclerc 3, 2, 1. Next pushing Russell 16 behind.
Charles LECLERC: The wheels were very difficult to manage on this lap.
Engineer: So we think this is a good spot, so let's focus on the tyres.
George RUSSELL: Average lap.
Engineer: Yes, decent going through 12.13, a little bit off maybe 6.7, so we'll box this lap with doubles, sort of a start in the pit lane, you've got cars around you on outlaps leaving the pit lane now. So much understeer, turn 8 traffic. Are we taking a second push? Negative, it's a first lap tyre. Coming through the pit lane. Three burnouts single, BPF end of pit lane and a launch. Can we check what the diff is doing in? No there's not, not with the tyres. But I'm still not really happy with the balance, would we have time to put a new import in there just to see what the diff would be doing if we tried something different, you know, going into qualifying. On a used set, yes. Yes, just to see. Right, three burnouts. BPF end of pit lane and a launch.
Charles LECLERC: Yeah, I don't know why, I'm struggling so much with the rears.
Pierre GASLY: I think they have
Engineer: a
Pierre GASLY: tiny bit more fluff for first sector, but the rest was a lot better compared to yesterday.
Engineer: Max just eight hundredths faster in sector one, a match in sector two.
Engineer: Red button on, red button on, we need to maintain temperature in the front brakes.
Max VERSTAPPEN: I'll have deleted.
Engineer: Yep, roger.
Engineer: Still happy to let these rears drop a bit more, fronts are pretty good where they are now so try to keep the fronts where they are
Engineer: That would have been P1, do you have track limits at 9? At
Lewis HAMILTON: 9, yep
Engineer: Okay, Daniel, we're going to do start practice at the pit exit again start practice at the pit exit So launch map on I want two burnouts and a second gear launch Remember the longer clutch phase
Engineer: I
Pierre GASLY: caught a lot of rear-deck
Engineer: Copy, on turn 11 was it the traffic or it was genuine tyres?
Pierre GASLY: No, I also put the push-tackle instead of pull Ah ok A bit of traffic
Pierre GASLY: Turn 1 was good after, I don't know what's happened in high speed, the rear of the car was so so light I almost thought there was a problem because I just turned into turn 5, 6 and the car was rotating on its own So I don't know if it's just the rear tires which were outing or there was something else but a very big change of balance
Engineer: We have a strong tailwind in that last lap as well on these corners, we'll have a compare to the previous one Mode 12, charge off, box box through the pit lane for practice starts
Engineer: I need to ask what happened.
Max VERSTAPPEN: I'm going to buy everyone glasses.
Yuki TSUNODA: You have to do something with the braking and the traction.
Engineer: Copy, OK. Box, box for a static pit stop.
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