Or let's leave the gear down after T/O to cool those hot brakes ( Against Airbus and Boeing normal SOP's ) all good stuff until the Engine fails at V2 and you need to retract hot gear because you didn't do the takeoff data based on gear down.....
Which you can't anyway unless using Brakes deactivated data.
The other option is to take off and leave the gear extended until the temps turn green. I only convinced a crew to do this once, back when the day of common sense was actually an option.
Well and good einsteins...what about your dispatch and takeoff performance? If you need to do an RTO,..................
