SecondRound 1 #1 April 1, 2014 I noticed that my speed in the tunnel was about 10-15 mph higher in the tunnel than what I record on my Viso. Do the speeds normally vary that much? Also, the tunnel was app 4500 feet higher altitude, does that have an effect? I am trying to get the most transfer of what I learned in the tunnel to what I do in the sky. Quote Share this post Link to post Share on other sites
skydiverek 63 #2 April 1, 2014 You are more streamlined without the rig. But true - you are also lighter. Also: higher altitude = thinner air = higher airspeed. Quote Share this post Link to post Share on other sites
SecondRound 1 #3 April 1, 2014 Thanks, that makes sense. It also occurred to me that I was learning Mantis and had a different body position and arch. Quote Share this post Link to post Share on other sites
