Thanks for the great suggestions.

We'll get a 3-hour window added to the site...in the meantime, you can simply enter 3 hours in the 'other' box.

We had originally thought to include equipment, but that can get very complicated with so many variations on the same thing (multiple models of 737/757/767 that are different for each airline). Any suggestions on how to make the entry simple and uncomplicated so that it won't end up taking more time to enter the upgrades? Should we simply put radio buttons for the main type of equipment without regard to series (e.g. D10, 747, 767, etc)?

Thanks again for the contributions to the site and the suggestions.