Can water-cooled brakes be used for takeoff aborts? Airliner engines are sized to continue the takeoff if one engine fails after it has become too late to brake. This means that the oversized engine has to be lugged around the whole flight, increasing weight and drag. Creating traditional brakes that could withstand the heating of a rejected takeoff just before rotation would also add significant weight. 

The brakes on the SKYLON spaceplane boil water during abort, and it appears that the steam is dumped. The water is fed by pyrotechnic blowdown. Following a successful takeoff, the water is dumped overboard. This saves weight for the remainder of the flight. 

My question is, can this approach be used to save weight on airliners?

SKYLON info.
https://web.archive.org/web/20151129034506/http://www.reactionengines.co.uk/tech_docs/SKYLON_Users_Manual_Rev_2.1.pdf
https://web.archive.org/web/20110615104534/http://www.reactionengines.co.uk/tech_docs/JBIS_v57_22-32.pdf
https://forum.nasaspaceflight.com/index.php?action=dlattach;topic=36826.0;attach=1073534
This solves the problem of rejected takeoff, which is certainly a major factor in brake design. However, dumping the water after takeoff means that benefit is unavailable for landing. Events such as flap issues can require an aircraft to land at a higher speed than usual, requiring more braking capacity. The difference between this and rejected takeoff may not be enough to justify the weight, complexity, and expense of the water cooling system.