PPRuNe Forums - View Single Post - Antiskid Off and foot position on rudder pedals
Old 4th Jul 2015, 11:37
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Goldenrivett
 
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It depends on your anti-skid system logic.

In the old days, we had to wait for the wheels to spin up to aircraft speed on landing before we applied the brakes, else there was a chance that anti-skid logic could lock the wheels.

According to FCOM DSC-32-30-10, Anti-Skid System;
"The speed of each main gear wheel (given by a tachometer) is compared to the aircraft speed (reference speed). When the speed of a wheel decreases below approximately 0.87 times (depending on conditions) reference speed, brake release orders are given to maintain the wheel slip at that value (best braking efficiency).
In normal operation, the reference speed is determined by the BSCU from the horizontal acceleration of ADIRU 1, 2 or 3.
In case all ADIRUs fail, reference speed equals the maximum of either main landing gear wheel speeds."

So this particular anti-skid system will not apply the brakes until the wheel speed is 0.87 of IRS sensed ground speed - so there is no problem with landing with your feet resting on the brake pedals.

If ant-skid was US, then I would keep my heels on the floor until the nose wheel was on the ground.

Last edited by Goldenrivett; 4th Jul 2015 at 11:44. Reason: typo
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