PPRuNe Forums - View Single Post - Is this a good way to burn off extra fuel
Old 3rd Sep 2017, 07:24
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riff_raff
 
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Originally Posted by Band a Lot
Why not! - there is no approved procedure to ride carbon brakes or steel brakes - do they react differently YES!....Friction creates heat ....* Carbon brakes work best and have good wear characteristics at an optimum temp that is quite high, and no doubt designed to fit the normal braking requirements of the aircraft type. Below this temp they have a much faster wear rate and if the temp get too high they become warped....I think we can all agree that in aircraft, the brakes are solely designed for stopping an aircraft and not designed for stopping an aircraft accelerating....
Actually, the brakes only stop the wheels/tires. It's the tire contacts with the runway surface that stops the aircraft. You can estimate the amount of heat energy that would need to be rejected by using up 1100 lbs (500 kg) of jet fuel, assuming the LHV of jet fuel is approx 18,500 Btu/lb.
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