PPRuNe Forums - View Single Post - Releasing brakes after setting TO power
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Old 5th February 2012 | 15:09
  #16 (permalink)  
Natstrackalpha
 
Joined: Jan 2012
Posts: 510
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From: Not far from the edge of the Milky Way Galaxy in the Orion Arm.
Smile T/O pwr against the brakes.

But because of the conservation of momentum thing take good care to make as many starts going east as you do going west or you may stop the earth from turning - or speed it up that much that centrifugal forces outweight gravity and you will lose your job because everyone then can fly without a plane;-)
So, if you were heading West, sat on Heathrow 27R, holding on the brakes at full chat, you could effectively slow down the Earth`s rotation (God bless her) until it stopped altogether. Then release brakes - fly to KJFK and arrive at exactly the same time you took off then? However, you would need an East facing runway, somewhere over the rainbow at JFK, to repeat the same process to kick start the Earth again, before anyone guessed it was you. More importanly, you would lose 6 hours pay.
In such, it can be said, therefore, that if you repeat the process to often you eventually starve to death. Therefore, holding the power against the brakes produces malnutrition.

Notwithstanding the above experiment, at T/O thrust, as mentioned in the posts above, would drag the aircraft down the tarmac leaving a trail of burning rubber - even a 737 would produce the same results. And, witness thereof, once a 73 taxied with a slight problem with the park brake - which was unfortunately stuck on..They taxied a fair old way until a hi-viz coat waved at the pilot to stop.

Last edited by Natstrackalpha; 5th February 2012 at 15:14. Reason: can`t type
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