This topic has been reviewed and discussed several times over the past year or so.... here's my two cents worth:
From the period ending 03/31/04-03/31/05, my pay sheets reflect approximately 53K in gross earnings. That's at an average of approximately 115 trips per month. Others may chime in, however, any trips that are picked up in the open time process or through extra fly, are awarded second year rates; which is currently at 71.11/trip. First year trip pay is at 42.14/trip. For planning purposes I would suggest you multiply 42.14 x 95 x 12, to get a CONSERVATIVE estimate on what your earnings will be. Hope this helps and good luck to you.