Bengel 0 #1 July 15, 2009 Though I'm not planning to use this on a WS jump but under canopy I thought, I would get more answers from this side of the forum. So imagine you're under canopy and have a GPS device, in this case a Garmin Foretrex 101, with you. As you maybe already know, you have several options regarding the display. For example, you can change the units to „speed“, „vertical speed“, „altitude“, „distance to...“ in the same display. I was wondering, if it is possible to read your best glide from that. For example, you go to full speed, hands up, then, you give a little bit more brake/rear riser input and keep watching the numbers while doing so. Is there a way to judge „best glide“ from that? Maybe decreasing „vertical speed“ while trying to keep the „speed“ up? Is „speed“ your horizontal speed or the vector your canopy is flying? I hope, I made myself clear and thank you for your answers. Cheers ChrisI'm a British nanny, and I'm dangerous! Quote Share this post Link to post Share on other sites
LouDiamond 1 #2 July 15, 2009 Chris, depending on which GPS receiver you are using, on some you have a glide ratio screen. The Garmin eTrex Vista is one such receiver and I have used it exactly as you described when testing different canopies out personally and for the Military. Unfortunately, on the Foretrex 101 you don't have the glide ratio screen as an option and the screens you do have available would be hard to use to effectively evaluate real time data while under canopy unless you can do numbers in your head at "rain man" speed. The best bet is to download your data and evaluate it in a software program like Paralog, which has a Glide ratio radio button that you can select to see the GR of your entire flight data point by data point."It's just skydiving..additional drama is not required" Some people dream about flying, I live my dream SKYMONKEY PUBLISHING Quote Share this post Link to post Share on other sites
Bengel 0 #3 July 15, 2009 Thanks a lot for the fast reply. So let's say, I try out several settings on my canopy and have a look ONLY on the speed(vector?), keeping the numbers in mind to have a look at the glide later via Paralog; is the speed indication from the Garmin useful to find out the optimum speed for best glide (not regarding wind, altitude...)?I'm a British nanny, and I'm dangerous! Quote Share this post Link to post Share on other sites
LouDiamond 1 #4 July 15, 2009 You won't have to do that, the GPS will do it all for you. All you have to do is turn the GPS on,jump with it and turn it off when you land. When you download your data to Paralog it will show you your freefall portion and your canopy portion in a line graph chart along with additional information(depending on which radio buttons you select) CLICK ME. You can also download the GPS data into Google earth via Paralog and see that data in 3D overlaid on satellite imagery with data displayed for each data point over/along the ground all the way to landing. Check out Paralog HERE to get a full description of what it can do, which is a lot."It's just skydiving..additional drama is not required" Some people dream about flying, I live my dream SKYMONKEY PUBLISHING Quote Share this post Link to post Share on other sites
