![]() Then they go do WS BASE using their muscle memory and. When GR finally drops, they think that it's because they got tired or somehow else lost the sweet spot. Most people using audible glide indicator mistake slow flare with improvement in L/D - they trade the forward speed to better glide ratio, which can last only limited time (although it can last up to a minute or so, depending on initial speed). So you need to detect a slight change in tone in 30 seconds from now - you need Mozart's ear for that. This is because while L/D (your aerodynamic property) changes instantly with body position and AoA changes, glide ratio has an exponential response, which can take 10-20-30 seconds to stabilize and asymptotically approach sustained flight. ![]() It is a common misconception that observing changes in GR helps you find the sweet spot (max performance). It would be good enough to have a look and see if the change in body position was achieving the designed effect For change/effect in wingsuiting, you need L/D Vario, because it measures L/D, not GR, and it's instant (~0.2s response time). (However, I don't exclude the possibility that some advanced, optional features could be purchased for a small fee - I want to eat drink beer, too, sometimes.) The main emphasis will be made not on traditional visual use in skydiving freefall (since today's screens are still quite poor in direct sun), but on things that smart devices can give to us that "dumb" altimeters can't - taptic and audible feedback, useful features on a ride to altitude in skydiving or mountain hike in BASE, data recording and analysis, and so on. I'm going to write an app, Smart Altimeter, that will work on any device with a barometric sensor. After I wrote L/D Vario: - an app for thinking wingsuiters that works on 4 platforms ( Android+Wear/ iPhone/ Windows) - I want to use my advanced data analysis algorithms and cross-platform engine for something else useful. However, I haven't found any good app that would fit my needs, neither for smartwatches nor for smartphones, on any of the 3 app stores. Besides smartwatches, more new smartphones get barometric sensors. Ever since I got an Android Wear smartwatch, LG G Watch R, which has an incredible pressure sensor with 75Hz sample rate and amazing always-on display, I wanted to have an altimeter on it with various useful features for skydive and BASE. ![]()
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