On Friday, March 8, 2013 8:08:04 AM UTC-6, wrote:
What is the difference between a 1.5 hour flight and a 4 hour flight?



2.5 hours.......(somebody had to say it).

Looking at some portions of the trace, I see up to 12 somewhat parallel lines along the different ridges. Neither OLC nor US distance rules allow for such an extreme yo-yo flight to count in its entirety. The reason is the relative ease and speed of flight along good ridges in favorable wind. The pilot can claim whatever he wants as his personal distance but let's be careful with the details.