8.1.2013 / PiiPaa
Formula 1 teams are facing an increasingly tough call on whether or not to pursue passive double DRS in 2013, despite rules tweaks that should theoretically boost its advantage.
The FIA has changed the DRS regulations for this year, with drivers now only allowed to activate the device in practice and qualifying at the areas of the track where it will be used in the race.
Trick 'double DRS' like those used by Mercedes and Red Bull - which fed air through ducts in the rear wing to help stall the aerodynamics for a straightline speed-boost - have also been outlawed.
However, passive DRS concepts as tested by Mercedes and Lotus last year, which can stall the wing for a speed boost on all straights, remain legal, and should produce a bigger advantage because of the rules tweak that restrict normal DRS usage.
Click here to read about how the passive DRS systems work
The implementation of the passive double DRS remains far from a no-brainer however, especially after both Mercedes and Lotus encountered difficulties in gaining confidence with the systems last year.
The biggest problem was in getting the device to switch on and switch off at the correct speed.