Not to nit-pick, but being an engineer I'm going to wax anal retentive for a minute, so please pardon the rambling....

a "knot" is a measure of speed (nautical miles per hour), so that would make knots/hour a measure of acceleration....which at 110 knots/hour you could make the 1100 mile trip from Denver to Pittsburg in just under 3 hours.

That's movin pretty quick for a piper archer