As a result if the airplane touches down 10 mph slower then that is 10
knots less that it has to decelerate on the runway and a lot less
energy that the brakes and tires have to absorb.

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Agree.

Energy is a function of velocity squared, so touching down at, say, 40K ground
speed instead of 50k results in about 35% less energy to dissipate on rollout -
dramatically shortening the landing roll (and wear-and-tear on the machine).


Engineer and Former CFII