I saw this on another thread posted and thought it could be very useful. It let's you know what temp. and humidity should be for the type of eggs you put in your incubator and when to go to lockdown. All you do is put in the date and type of eggs and it tells you the rest. I thought others might be interested.
http://homesteadapps.com/app/free/hatchchart/hatchturnscheentry.php
http://homesteadapps.com/app/free/hatchchart/hatchturnscheentry.php