[Elecraft] Will the KPA 1500 operate RTTY in "run mode" for 48 hours?

[Mack McCormick]

I have a complete K line with the KPA 500 currently. I am considering
purchasing a KPA 1500. Will the KPA 1500 operate, *on all bands at legal
limit*, while operating as a "run" station in a RTTY contest? That would be
near continuous duty. How loud are the fans when operating in this mode?

Thank you in advance for any information.

Mack
W4AX