It's been said here, but I think need repeating. There is a built in margin here that makes an assumed temp. t/o safe in most conditions. Let's say it's 15 c outside and we are using an assumed temp of 50 c. With the exact numbers and speeds we are using we could take off at 50 c., but we're using those numbers at 15 c. the huge increase in performance due to the cooler temp. is in our back pocket. We are way exceeding the performance we would achieve if it actually was 50 c.
Last edited by 5LY; 19th Dec 2011 at 17:47.