Setting Parking Brake On Runway Before Take Off

[Lord Spandex Masher]

Originally Posted by sir fizzy

on short runways and with experienced pilots who need to takeoff very quikly with a heavy jet takeoff power is set to full, then the pilot eleases brakes, gives a better acceleration, and boosts your rate of climb off the tarmac i do it on the pa-28 im training with. because it's fun. - not through nesesity

• Define "Short runway"
• I'm never in a rush to take off quickly
• So inexperienced pilots don't need to do this on "short runways"?!
• You will take off at the same speed but do you know why?
• Only initially better acceleration but can you tell us why?
• It does not boost your rate of climb, can you tell us why?
• Finally this thread concerns use of the parking brake