For some, it's not economics; it's heat. I have been taught that hot steel brakes are no friend to anyone trying to use them. Get them hot enough, and they will not work at all. This applies to steel brakes, not Carbon Fiber. With CF brakes, use at touch down gets them warm, thus making them much more effective.747flyboy said:Yeah, its funny how pilots don't like to use brakes, like they're the ones paying for them.
When I was learning, I was taught to check the brakes upon landing to make sure they were available, but to let the T/Rs do the work. As the T/Rs are coming out, check the brakes to make sure they are available, then let the T/Rs do their job. 10 or so knots short of stow speed, bring in the Brakes. Why heat the brakes up at touch down just to do it? Jump all over the brakes at touch down, then that last 2000 feets comes up and you really need them, they will not be there for you like you need them to be. If they are, they certainly will not be as effective. With 8000ft in front of you and you have it stopped by the 2000ft point by jumping on the brakes and T/Rs for no other reason then just to do it? Silly. Most T/R's are highly effective, especially the Target Type, putting out additional drag just by their deployment.
All of this goes out the window on shorter runways. Common sense should come into play. I've seen people fly Ref+ 10 or whatever going into short fields. Makes no sense; like the aircraft will fall out of the sky at REF.
"We only have 4000ft. Why are you flying REF +10?"
"For Safety"
"Oh, flying at REF is not safe? Please tell me where to find performance #s for REF +10 in the AFM"
"Ummmmmmm"
Some will argue this. We all have our own way of doing things, but anyone here will have a tough time explaining the thermodynamic benefits of heating up steel brakes so they are more effective.
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