airaccel is a hidden cvar in tf2 and you need sourcemod installed to change it (sm_cvar sv_airaccelerate 150)
easiest way to go about it on lan is to connect to a surf server and then just type map surf_whatever in console while you're connected and the accel cvar should stick
*4starters adventure aznbob beef bob heavy hobo impact lite noob orange *pagoda rush speed *zirco *rckteer rj_training
If the map has a * in front that means that I have left it on jump it rotation despite it being available on jujump. I'll adjust this list more when I care enough to let filezilla eat my internet for extended periods of time.