The development battle continued to rage in Montreal with several teams having brought further upgraded parts despite the long distance from their headquarters. F1Technical's lead writer Balazs Szabo reflects on teams's development at the Canadian Grand Prix.

Red Bull

Red Bull introduced two upgrades in Montreal. The new rear wing features a re-profiled wing flap across the span. The new flap geometry was aimed at extracting locally more load "whilst maintaining adequate flow stability for all the conditions encountered."

Moverover, Red Bull adjusted the exit duct of the front brake cooling was which was labelled as a realiabiliy update by the team. The larger exit duct was necessitated by the high brake energy generated by the intense deceleration phase into the slow corners.

Aston Martin

Having slipped down the pecking order in the opening stages of the season, Aston Martin have been intent on making changes to their AMR-24 on a regular basis.

For the Montreal race, the team brought a new beam wing. The updated version sports lower tips. The Silverstone-based squad noted that the "spanwise loading of the beam wing is modified from the revised twist distribution which increases the load generated, particularly near the tips."

Mercedes

Having brought a new front wing in Monaco, Mercedes introduced further upgrades in Canada.

The biggest upgrade on Lewis Hamilton's car was the heavily-revised front wing which he only received in Montreal as Mercedes had only one piece available in the previous round.

Furthermore, the Brackley-based outfit has altered the front suspension of the W15.

The track rod and lower wishbone forward leg were realigned which aimed at improving the flow conditioning. The team stated that the changes were made to reduce "boundary layer losses and hence improves the flow to the floor."

The unique characteristics of the Montreal track saw Mercedes increase the brake duct inlet size in order to achieve a bigger mass flow to the disc, which in turn increases heat rejection from the disc to the air.

Williams

Williams scored their first points in Monaco, and they were looking forward to adding further points to their tally. In the end, the Canadian Grand Prix saw the Grove-based outfit leave Montreal without any points.

The Dorilton Capitals-owned team introduced two upgrades on their FW46 in Montreal, both centred around the suspension. A shorter steering arm was designed for Round 9 of the season. The team noted that the shorter arm "changed the ratio between steering wheel angle and road wheel angle and affects the drivers' ability to control the car."

Another performance-related upgrade was a new rear pullrod. Although it is geometrically unchanged, but it provides a larger range of ride height adjustment. Having run an overweight car since the start of the season, the updated component provides a weight-saving benefit, and so simply brings the car closer to the legal weight limit. Moreover, the team noted that it "also allows the ride height to be adjusted within a larger range without the need to physically swap the pullrod component."

RB

Having achieved an upturn in form in recent races, the Visa Cash RB team continued to introduce further upgrades in Montreal.

The new rear wing featured a new camber and incidence of the upper wing profiles. The team added that "the profile redesign provides more efficient downforce generation than the previous wing, whilst retaining the same range of drag suitable for high-speed circuits."

The altered front wing sported a shorter chord and reduced incidence compared to the previous flap. This smaller front flap was neccesary to reduce the amount of overall load generated by the front wing assembly, in order to balance the low drag rear wings used on the Circuit Gilles Villeneuve.

Kick Sauber

Kick Sauber had a disastrous Monaco Grand Prix where they looked the slowest outfit. The Swiss-based outfit failed to significantly move up the grid in Canada despite two circuit-specific upgrades.

The team brought a new rear wing that features a redesigned main plane and flap. The new profile of the rear wing, with a reduced flap and redesigned main plane, were introduced to meet the low-drag requirements of the Circuit Gilles Villeneuve, albeit this rear wing might return in later races of the season.

Together with the main rear wing update, the team introduced a reprofiled beam wing which was a circuit-related upgrade for the unique characteristics of the improves the aerodynamic performance in the situations expected to be encountered in Montreal.

Haas

Haas has recently introduced a comprehensive upgrade package which has not delivered the expected upturn in form according to team boss Ayao Komatsu.

In Montreal, the team introduced a slightly altered front wing. The new version features a less cambered flap which was introduced to find the right balance between the front and the rear end of the car on the Montreal track that requires a medium-downforce rear wing.

Ferrari, McLaren and Alpine have not submitted any upgrades for the Canadian Grand Prix.