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The start procedure of F1 cars is much more complex than normal road cars. So, to explain the procedure, we start from the parade lap.
As the cars head out for the parade lap (warm-up lap), they continuously weave left and right to keep tyres and brakes at optimum temperature while keeping low engine temperatures. There is intense communication between the driver and the engineers on the parade lap as the engineers instruct drivers to setup various settings on the steering wheel such as KERS output, brake balance, differential, etc.
The most important setup is the clutch bite point. This bite point is calculated by the engineers and is different for different circuits. As the drivers head out for the parade lap, they do a bite point check to see how the car responds on disengagement of the clutch.
The last part of the parade lap, that is when the cars start to line up on the grid, is the most intense part as drivers do two to three burnouts to get temperature onto the rear tyres.
When the five red lights go out, the drivers disengage one of the clutches as quickly as possible while the second clutch is released much more slowly. As the driver feels the traction coming from rear tyres, he disengages the second clutch completely and hammers the throttle.
Note: Modern F1 cars have semi-automatic sequential gearboxes, which means that the drivers do not need to engage the clutch for gear shifting. The two clutch paddles are located at the back of the steering wheel. Clutch paddles are used only during start of a race or in case of a spin to prevent the car from stalling.
Below are the rest of the articles in the series:
1. https://www.sportskeeda.com/2012/08/29/the-working-of-kinetic-energy-recovery-system-kers/
2.https://www.sportskeeda.com/2012/05/11/insight-into-f1-strategy/
3.https://www.sportskeeda.com/2012/02/24/all-about-the-formula-1-steering-wheel/
4.https://www.sportskeeda.com/2012/05/10/the-range-of-pirelli-tyres-used-in-f1/
5.https://www.sportskeeda.com/2012/08/30/the-technology-behind-formula-1-cars-part-1/
