Also, make sure you know your 6 times table. Helps avoid mathematical cockups on timing after everything else has been worked out perfectly.
"Yes sir, my ETA at our diversion will be......(mutter to self: 52 miles at 145 kts is....14.5 miles in 6 minutes.....3x6=24.....plus 3 = 27 minutes)......out by 6 minutes" DOH!!!!!
