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Nico Hulkenberg has also been given a 20-second penalty by the stewards for gaining an advantage in turn 7 in the first lap of the Singapore GP. This drops the Williams driver one spot, moving Felipe Massa up to 8th.
Thanks for the update, there's no better source of info than someone on site. Conditions of high temperature, low barometric pressure and high humidity all combine to reduce the engine power.Clydebear wrote:Well guys...I can give you a "from the ground" weather report and (as longtime resident here in Singapore) a pretty good prediction that rain IS going to effect at least one if not more of the sessions and/or race. There's been very scattered heavy thundery showers for the last 2 days, mainly in the afternoon and talk is of it continuing like this until at least Saturday. The track (like everywhere here) will dry up within 20 minutes (depending on the amount of rain of course) but certainly a lot quicker than most other circuits. With all this the humidity is quite high so more discomfort for the drivers. Not sure how humidity would effect engines...anyone out there more learned than I that can answer?
http://oai.dtic.mil/oai/oai?verb=getRec ... =ADA298479Tests on automotive engines, made under sea-level conditions, showed that water vapor acts as an inert diluent, reducing engine power in proportion to the amount of vapor present. By combining the effects of atmospheric pressure, temperature, and humidity, it is shown that the indicated power obtainable from an engine is proportional to its mass rate of consumption of oxygen. This has led the National Advisory Committee for Aeronautics to adopt a standard basis for the correction of engine performance, in which the effect of humidity is included.
I understand that it did not rain during the night. The qualifying and the race will be at 22:00 and 20:00 h local time. Did you have a wet track at that time lately?Clydebear wrote:Well guys...I can give you a "from the ground" weather report and (as longtime resident here in Singapore) a pretty good prediction that rain IS going to effect at least one if not more of the sessions and/or race. There's been very scattered heavy thundery showers for the last 2 days, mainly in the afternoon and talk is of it continuing like this until at least Saturday.
TrackJet® can be used to remove rubber skid marks and old markings without damaging the sensitive asphalt or concrete surfaces.
don't follow that bit of extrapolationWhiteBlue wrote:The rubber removal from airport runways is the initial purpose of the machine. Excessive rubber on runways can reduce the friction coefficient of the runway to half of the value after cleaning it with this machine. It means that landing aircraft will come to a safe stop on the calculated runway length.
In Singapore it is mainly used to remove dirt and dust that makes the track slippery. Last year a number of F1 drivers seem to have complained about dust. The trackjet in Singapore is also fitted with a Vacuflex suction unit that is designed to remove all debris that is taken off by the water jet. This could be very usefull to remove carbon fibre debris after accidents. The machine cleans 860m²/h. So an accident spot of 10m length can be done in 10 minutes.
