Forward of the 2026 Belgian Grand Prix, Paul Williams, Chief Trackside Engineer, shares insights into the important thing technical components that may form the weekend.
What are the important thing technical challenges of Spa?Paul Williams: Spa is without doubt one of the most demanding and diversified circuits on the calendar, combining lengthy, flat-out straights with a difficult mixture of high- and low-speed corners – the automobile have to be fast in a straight line whereas remaining nimble sufficient to deal with fast modifications of path.
The well-known Eau Rouge part calls for cautious administration of suspension journey, entrance experience top, and skid put on.
Climate stays a continuing unknown, with rain all the time a chance and situations able to shifting rapidly all through the weekend.
How do the 2026 rules affect the method this weekend? PW: Spa is essentially the most energy-sensitive circuit we have encountered to date this yr, by some margin.
The method to Eau Rouge could be diversified by buying and selling off deployment profile, power optimality, and the ride-height positive aspects accessible from the setup on the run up the hill.
We anticipate to utilise the complete power pack window: full at Flip 1, depleted by Flip 5, then full once more on the Flip 14 exit earlier than emptying by Flip 18. This leaves Sector 2 considerably starved of power, with superclipping possible on each low- and high-fuel runs.
5 SLM zones have been added for 2026, all of which stay lively in moist situations. Zone 2 (Turns 4-5) has a delayed activation level, moved to the straight part.
What are the tyre challenges of the circuit?PW: The compound allocation sits in the midst of the vary, spanning C2/C3/C4. With out the step as much as the tougher compound, the laborious tyre this yr is successfully one step softer than final yr’s.
Spa is a reasonable energy-density circuit, however its lengthy lap size means power loading is unfold comparatively evenly throughout all 4 tyres.
In qualifying, the lengthy lap makes tyre preparation simpler than at latest occasions. Within the Grand Prix, we anticipate longer stints to turn out to be wear-limited.
What are the strategic issues for the race?PW: Spa is the second-easiest circuit of the yr for overtaking, however battery administration self-discipline will likely be essential in wheel-to-wheel battle. This shifts the stability of priorities towards the race, making low-fuel tempo extra vital than grid place.
The race is anticipated to be a transparent one-stop technique constructed across the laborious tyre, with the primary selection being which tyre to start out on between medium or tender.
Spa additionally carries one of many highest security automobile chances of the season, mixed with regularly changeable climate. How rapidly groups and drivers react to altering situations will matter as a lot because the race plan they begin with.
