The schedules have
Inflight Gear Down Cooling. I've always thought that
this part was solely for after-takeoff gear cooling. However, the FCTM states:
Extending the gear a few minutes early in the approach normally provides sufficient cooling for a landing. Total in-flight cooling time can be determined from the PI chapter of the QRH which lead to the confusion.
which lead to the confusion.
The only example I can find in the book suggesting early gear extension is for overweight landings. Perhaps this practice should be considered during hot days and high elevation as well? Nonetheless, if the Brake Cooling Schedule is indeed applicable in this scenario, I'm still perplexed as to how I'm expected to determine the million foot-pounds (the brake energy absorbed) before landing, in order to calculate the required cooling time.
I've contemplated whether Vref could serve as a reference point, but I'm hesitant to proceed without solid confirmation/reference.