TECH TUESDAY: Why Leclerc’s trimmed down Montreal rear wing wasn’t as regards to serving to him make growth from the again

Despite the fact that Charles Leclerc was once the usage of a brand new, lower-downforce variant of the Ferrari rear wing in Montreal than his group mate Carlos Sainz, this was once about extra than simply giving Leclerc one thing to assist him overtake from his penalised back-of-the-grid slot after taking a fourth energy unit. F1 tech knowledgeable Mark Hughes delves into Ferrari’s larger plan, aided via the technical illustrations of Giorgio Piola.

The wing used on Leclerc’s automobile on the Circuit Gilles Villeneuve is in reality set to develop into the usual element at maximum circuits as soon as sufficient examples of it were manufactured.

This can be a utterly other circle of relatives of wing to the intense low-downforce wing raced at Baku. What Leclerc raced at Montreal is just a decrease downforce/drag model of the usual wing, with out the Baku wing’s straight-edged mainplane and really small decrease floor space.

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In Montreal, there was once just one instance of the wing, with Leclerc selected to run it. If there have been sufficient for 2 automobiles with spares, it will most probably were on each automobiles. It’s Ferrari’s reaction to the development noticed within the early-season races in their opponents Pink Bull having better end-of-straight pace. With this new variant of the wing, Ferrari were ready to make a small sacrifice in general downforce in alternate for a more-than-proportional relief in drag. It’s due to this fact a extra aero-efficient wing.


Ferrari rear wing.jpg

The flap of the Leclerc wing was once straight-edged, with out the upsweep of the usual wing as utilized by Sainz. The mainplane retained a equivalent outboard upward sweep however is much less dished within the centre, so with a smaller distinction in floor space between its underside and most sensible floor. This will likely generate much less drag and not more downforce, however Ferrari really feel that it features extra lap time from the drag relief than it loses from the downforce relief in comparison to the usual wing

Ferrari engineer Claudio Albertini defined the background to the wing alternatives in Montreal. “With only one instance, lets now not threat it on Carlos’s automobile, as a result of if it have been broken in qualifying and changed with a unique spec wing, he would have had to get started within the pit lane. With Charles, as a result of he was once taking the PU penalty and beginning on the again anyway, we have been ready to have a quieter, low-risk qualifying.

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“It’s a mean stage of downforce, very similar to that utilized in Australia or Miami, however operating at the potency to have decrease drag… It’s true that now and again you realise while you see a rival the place you’ll be able to strengthen and you’ll be able to see that [with] most sensible pace, there was once room to strengthen.”

The brand new wing works along side a revised decrease beam wing, with a narrower higher flap. The brand new wing has a straight-edged flap moderately than the upswept same old one. The mainplane keeps the outboard upsweep of the usual wing however the central phase does now not sweep down as dramatically.


Ferrari beam wing.jpg

A brand new beam wing (above proper, when compared with Leclerc’s Baku beam wing, above left) to head with the Leclerc rear wing featured a narrower higher flap. With the diminished space of the mainplane’s decrease floor, there’s a corresponding decrease requirement to feed it airflow exiting from the diffuser, which is the primary process of the beam wing. This will likely give a contribution to the drag relief

This creates a smaller space of decrease floor and due to this fact a decrease force distinction between the higher and decrease surfaces, because the airflow travelling over the decrease floor does now not have as some distance to visit catch up with the air travelling over the higher floor and so isn’t pressured to drift as rapid. This reduces downforce (dangerous) and drag (just right).

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The purpose with making improvements to the potency is to realize extra lap time from the drag relief than is misplaced from the downforce relief (although this will likely range in line with observe structure) and Ferrari really feel they’ve accomplished that with this wing.


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The intense low-downforce wing utilized by Ferrari in Baku (above) is of a unique circle of relatives to the wing utilized by Leclerc in Montreal, which keeps the usual wing’s swooping mainplane central phase moderately than the straight-edged mainplane of the super-low downforce Baku wing

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