yuri_base

So, with a physicist/programmer and a mechanical engineer already actively involved in brainstorming, we already have a new, unofficial, WS company. This is our "only one solution". The community, open source, global, distributed, indestructible - like a blockchain - WS company. Perhaps we can call it ACME Cutting Edge or ACME Bird like a sign on the box on the right in this scene: https://i.imgur.com/EhiLz8f.jpg Or maybe simply "Wing Systems, Worldwide". "Hiring" aerospace engineers, mechanical engineers, scientists, people of any profession, foam cutting specialists, anyone... pornstars, ... Come on everybody! Everyone is hearty welcome. It's magic... pure flying magic! I don't have the prototype foam leg wing with me to show, but the basic idea should be clear from the discussion above. I'll see what sketches from the past I can find in my piles... Android+Wear/iOS/Windows apps: L/D Vario, Smart Altimeter, Rockdrop Pro, Wingsuit FAP iOS only: L/D Magic Windows only: WS Studio

Not much smaller than, for example, a V-4 leg wing, which BTW also has an exposed leading edge, just very short. On my V-2, which I have cut in half by a ACME Cutting Edge professional, with waist belt fitted to use as "Superman's pantz", I later cut the leading edge to the knees, making a longer LE and higher AR leg wing. It still flew like a champ, although because there was no reinforcement tape between the knees, the fabric started tearing apart. Leg wing, when legs are pushed together, folds in half and one doesn't have to sit with legs spread out. Arm wings also should fold easily. Not so much volume as it may seem. One or two such jumpers on a load should not be a problem. Not outside. On the legs, there's enough range to tilt the wing by up to 15 degrees or so. On the arms, arm wings will be attached to platform on the belly extending to the sides a bit, like a corset. Again, some range for AoI adjustment is possible. I've (and many many others) been jumping in tiny Phantom-1, no problem for many sites, for years. If it doesn't start as quickly as low WL mattresses, and site demands it, the solution is obvious - jump this site in a mattress. Right tool for the right job. We have to work with what we've got. We'll have to see... But to see, one needs to do. So, I'm inviting everybody interested to start working on these things. Foam is not so expensive, $60-80 will buy a big sheet of thick foam enough for 3 wings. Belts, zippers, some ZP or even PVC fabric - it's not expensive. Foam cuts easily with a hot nichrome wire. The bill of materials, even for a single DIY project, should be within $100-150 range. MWGA already! Everybody, Wake up Grab a brush and put a little (makeup) Grab a brush and put a little (Massive Attack, Chop Suey!) Android+Wear/iOS/Windows apps: L/D Vario, Smart Altimeter, Rockdrop Pro, Wingsuit FAP iOS only: L/D Magic Windows only: WS Studio

Foam leg wing is a trapezoid shape, with real airfoil profile, with leading edge between the knees (just below) and trailing edge at the ankles or bottoms of shoes. It is attached to lower legs with belts or quick detach mechanism, e.g. plastic platforms attached to lower legs with straps, the leg wing attaches to platforms with some mechanism (in my 2008 leg wing prototype, it was simply strong zippers). Nota bene: when I talk "foam", I mean high-quality, closed cell polyurethane foam used for seats in auto industry, furniture, mattresses, etc. Usually blue or green foam. It's compressible and resilient. It's NOT hard white foam that is used for packaging or home insulation, the one that easily snaps and consists of fused small balls. THIS: [inline high-resilience-foam.jpg] It's easily compressible (in fact, if one orders it online, they ship it in vacuum plastic bag, taking much less volume than expanded). Yet it holds its shape very well (that's why it's used in furniture). Fitting it in the plane (provided that it's not filled to the rim with 23 "foam jumpers") should not be a big deal, it's a bit bulkier than a big cloth wingsuit, but not that much. Carrying to the mountain should not be hard, too - it's light (finished system won't be much heavier than a modern mattress suit), but probably will need to be attached to the outside of the stashbag. Both leg and arm wing attachment platforms will have ability to attach wings with variable AoI. After I pounded it in in WSMs from 2006 to 2007-8, took a lot of resistance, too. See Jeff N's reply quoted from an old thread above. Yes, but foam allows full profile, not truncated like what we have on the arms, and full, nice, and exposed LE on the leg wing as well. Also, foam allows wing to be completely smooth span-wise, without any "pillowing" and without any rib stitches. Also, ram inlets are no longer necessary, saving quite a lot of parasitic drag. I've done useability tests and the foam is easily foldable by the same arm force that takes to reach for the pull in modern mattress. But the arm wings can be made in such a way, as to totally preclude covering the handle. No. The goal is not make the suit as big as possible, but as aerodynamic as possible. The goal is max L/D. Although, as a result of reduced surface, the starts in BASE will be slower, as the starts are mostly determined (for a given lift coefficient) by low wingloading. To mitigate this, high-lift airfoil profiles can be used. But again, the ultimate goal is the highest L/D possible, if we can achieve the magic 3.567 (when after BASE exit, the glider achieves infinite glide ratio at some point, all by itself, with no flare), it will be a historic achievement. High-resilience, but firm enough, foam should provide enough support. If the tests show that it's not sufficient, either firmer foam can be used, or maybe some small inlets can ram the air inside channels inside the wings to make them more rigid. Also, the foam wings will be covered by either ZP or some PVC cloth material, glued on to the foam with upholstery adhesive. This will make the surface smooth and low drag, as well as make the wing somewhat more rigid. And of course, make the attachments of zippers, grippers, etc. to the foam wings possible. Android+Wear/iOS/Windows apps: L/D Vario, Smart Altimeter, Rockdrop Pro, Wingsuit FAP iOS only: L/D Magic Windows only: WS Studio

Before T-planform that is carbon-copied by every WSMs these days, starting from early 2010's, arm wings were separate from the leg wing, with the trailing edge going from the end of the gripper to about waist line. And these suits were difficult to fly, they required a lot of strength to stretch the wing, especially the trailing edge. T came and it became much, much easier to fly. Why? Make a simple experiment in trivial mechanics. Tie a chain to an anchor on the wall, attach a substantial (10 kilos) weight to the middle of the chain and pull on the other end. Try to make the chain as straight as possible. It will be very hard, require a lot of tension force! Now, make the chain sag naturally, like a suspension bridge. It's now much much easier to hold the weight! Same with T-planform - the trailing edge arc from the gripper to legs makes this "suspension bridge", much reducing the effort to tension it. Another thing that made T's easier to fly is the increased pressure force. Not pressure alone (although it also increased with large scoop inlets placed on the bottom), but total force! Force from pressure is equal to force times surface area. Since T has a long and thick profile next to the body that runs from shoulder to legs, the surface area the pressure can push on (and thus offload some of the effort to hold the wings) increased. Wingsuit got easier and less tiring to fly. Just some Mechanics 101 for ya all, don't think that all that came as a result of some amazing work of aerospace engineers! Android+Wear/iOS/Windows apps: L/D Vario, Smart Altimeter, Rockdrop Pro, Wingsuit FAP iOS only: L/D Magic Windows only: WS Studio

Also, what prevented WSMs all these years from making a "half-WS", or WS/2 - leg wing-only speed demons? I've been doing this, on on and off basis, since 2005 (Prodigy pants/legwing; then V-2 cut in half; then V-4 with armwings and butt deflector cut off). We would have an additional category of flying now: tracksuits, onesies/hybrids, half-WS, WS. Possibly, new speed records, new possibilities in proximity tracking. https://youtu.be/jF7K-7hWrkE I'm opening a new WS company, folks. It's called ACME Cutting Edge. Bring me your wingsuit, and for a low fee of $100, I will professionally cut the arm wings off using my fingernail scissors, and you get a completely different flying machine, a speed demon, a rocket, a hypersonic missile. Which can be flown either in tracking body position or with arm (one or both) stretched forward, like a Superman. Can anyone find a picture or video of me jumping my black half-V4 taken by Dan Dupuis at Perris ca. 2015 (maybe, 2016), with "Superman" flying style (one or two arms forward)? I'm not good with all this Facegramitter stuff, and it just throws the login at me, which I say "fuck no" to. The opportunities, the innovation WSMs, Da Stooges missed in all these years are just unbelievable. I mean, how hard is it to tell the sewer, "when it comes to arm wings, just don't make them"? And get a completely different class of flying gear? Or better yet, make a wingsuit with full detachable arm wings, so it can be converted to WS/2 and back to WS easily, without paying $100 to a destructive ACME pro? Fast forward 2005 to October 2018, they say it's coming soon. About fucking time, LOL! Again, this is not about "look at me me me" and "look, I'm the smartest guy in the world" - it's about ALL OF US seeing and enjoying more of interesting things, more variety, more cutting edge performance, etc. We are ALL being, essentially, being robbed of all this by... The CoW. Will the state of CoW finally end in 2018, like Great Depression ended some day? It all depends on US - mounting pressure on existing WSMs (although I think it's futile, they proved by 1-2 decades that they are invincible), starting new WSMs, and just by DIY projects available and affordable for everyone interested. MWGA!!! Android+Wear/iOS/Windows apps: L/D Vario, Smart Altimeter, Rockdrop Pro, Wingsuit FAP iOS only: L/D Magic Windows only: WS Studio

No doubt. Just like the limiting factor in car design is road infrastructure and garage dimensions, and human body size as well. (can't make a car that fits in a pocket) But one can have a PT Cruiser in their garage, or one can have a Ferrari. I think that the separate wing planform has not been researched thoroughly (WSMs never even tried changing AoI, only some guy at the Ranch with hands growing from his ass, did, by sewing in new cable tabs on his P-1 and V-2) and has some growth potential. With foam modular design, unlimited experimentation with airfoils, sizes, profile thickness, stepped airfoils, even high-lift devices, AoI, trim, etc. is possible - by everyone, with basic materials and tools, no significant sewing skills necessary. It's no wonder that airplanes that fly well also look beautiful. (Our eyes have a built-in evaluator of aerodynamic perfection.) Mattresses look fugly. We've got used to their look starting 10 years ago, but they are fugly. Separate wing planform just looks more aerodynamic, like that jet fighter above, vs. a mattress. It's not about the size of the garage, it's what is in it... Android+Wear/iOS/Windows apps: L/D Vario, Smart Altimeter, Rockdrop Pro, Wingsuit FAP iOS only: L/D Magic Windows only: WS Studio

Nope. Not interested. I actually have a WS-related LLC, specializing in software for wingsuits and theoretical research. This is my specialization, this is what I'm best at, this is my contribution to WSI progress. Only one solution: for someone else, both smart, well educated, and good at business and managing people, to start a new WS company that will not start by copying the same mattresses, but start fresh by building something different from the ground up. (One possibility is the modular foam wing system I mentioned.) And make other WSMs to look like The Stooges by contrast. (Just like Elon Musk with reusable Falcon made Russian rockets outdated and losing launch contracts.) Elon Musk of WSI, where art thou?... Android+Wear/iOS/Windows apps: L/D Vario, Smart Altimeter, Rockdrop Pro, Wingsuit FAP iOS only: L/D Magic Windows only: WS Studio

I thought I made it pretty clear, or one could easily infer it from my posts. Here's what I want, ever since I started wingsuiting and writing in this forum in 2005 (with a gap here from 2010 through 2018 when I voluntarily withdrew myself from this forum after a short-term ban): - I want the progress in WSI (wingsuit industry) to be as intense as it possibly could be, like progress in most other industries - computers, mobiles, airplanes, cars, etc. - I want that we ALL have the maximum joy and fun of flying the most advanced wingsuits/wingsystems that are possible, not the same mattresses of 10 years ago - I want that in N (any number) years that anyone has in wingsuit flying, we are delighted with the most interesting things possible in that span; I don't want to see essentially one new thing in a decade - I want wingsuits to be built to the highest standards of strength and longevity in skydiving/BASE industry, with rigs and canopies lasting easily 15-20 years and thousands of jumps; I don't want to experience an armwing zipper separating on a proximity jump or suit tearing apart after only 5 jumps because of no reinforcement tapes and use of flimsy materials and poor structural design - I want wingsuits to be more affordable; I don't want the price to hike when a new WSM is born, the price must be determined by labor and R&D cost, with a reasonable profit margin, but should not be increased if the costs stay the same, but more WSMs slice the user base pie into smaller slices (similar to how the price for reserve repack hiked up when FAA increased the cycle from 120 days to 180) - I want WSMs to be as lean in their staff as possible; I don't want to feed the whole army of sponsored pilots out of my pocket - I want to see new WSMs born by engineers and scientists, not by tailors and salesmen - I want when a new suit/system is introduced, to see their technical data - max L/D, sample polar curves, max sustained horizontal speed, min sustained vertical speed, etc. (for the same factory pilot) - I want that upgrades are accompanied by detailed, technical descriptions of "before and after", for example, "we increased the thickness of the airfoil, because we found from precise performance measurements that max L/D increased this way by 5%; here's the old airfoil profile, and here's the new one" - I want the BS marketing, aka Godzilla Marketing, drop fucking dead; enough already - I want any update to existing line or a new model to be substantial, making real sense to upgrade from the older model; I don't want what is the equivalent of 0.0.1 version upgrade in software (fixing minor bugs, or minor improvements) to be roared out as a groundbreaking upgrade - I want that we have WS-specific instrumentation, like any pilots - jet, passenger airplane, ultralight, HG, PG pilots do - I want that WSMs use WS instrumentation in R&D and back their claims of improvements with real data (ok, if I continue writing what I want, the Internet will choke on this giant blob of data passing through fibers, so I'll stop for now) I already wrote my vision of WSI history from 1998 through 2018, so I won't repeat what we have instead. We're stuck at this: [inline WhatWeHaveToday.jpg] while we could be flying THIS: [inline WhatWeAreMissing.jpg] ...TODAY Android+Wear/iOS/Windows apps: L/D Vario, Smart Altimeter, Rockdrop Pro, Wingsuit FAP iOS only: L/D Magic Windows only: WS Studio

Am I talking about the right tunnel or there's a "cheap" one somewhere else? https://flywingsuit.se/product/proflyers-start-up-pac-60-min/ 1430€ = $1656 for 30 minutes in the harness and 60 without (with 60 out of total 90 minutes, are coached) What can one learn in an hour, besides moving a couple of meters in either direction and useless barrel rolls? Why would a BASE jumper want to pay 1656 dollars to fly at L/D of 1.67 at slow airspeed? And not have a whole month in the Alps/Dolomites instead? Android+Wear/iOS/Windows apps: L/D Vario, Smart Altimeter, Rockdrop Pro, Wingsuit FAP iOS only: L/D Magic Windows only: WS Studio

To add: 100+ exit practices, 100+ proximity practices, 100+ energy management practices, 100+ flares, 100+ deployments, 100+ landings in BASE environment, 100+ pack practices, 100+ hikes. Android+Wear/iOS/Windows apps: L/D Vario, Smart Altimeter, Rockdrop Pro, Wingsuit FAP iOS only: L/D Magic Windows only: WS Studio

I'll let those Formula1 teams know that they should stop using wind tunnels to fine-tune their aerodynamics. I'm sure they will be grateful to save the $. In more sophisticated aeronautical engineering fields (eg- not wingsuiting) there is good uses for all these tools: instrumentation, CFD, and wind tunnels. Instrumentation might be great for measuring the absolute L/D of different suits, but if I was trying to design a better suit, tunnel and CFD will allow for much faster iteration. To be later validated by instrumentation. Absolutely. Those researchers don't waste $$, they use tunnels to do real measurements and real improvements. This hasn't been the case so far in WS world: This is because WS industry in the past 20 years has been monopolized not by aerodynamicists and scientists, but by tailors and salesmen. I hope things will change soon and a new WSM (or several) will appear who will finally wake up the CoW and ride it to new amazing products, not the same mattresses we've had for a decade now. Android+Wear/iOS/Windows apps: L/D Vario, Smart Altimeter, Rockdrop Pro, Wingsuit FAP iOS only: L/D Magic Windows only: WS Studio

Absolutely. Maybe someone will do it, I would be happy to see the results! (Note that for the vane physics to work properly, it must be the angled tunnel, like WST, and pilot must be flying free, not attached.) But I have nearly zero hope that this will ever happen. Android+Wear/iOS/Windows apps: L/D Vario, Smart Altimeter, Rockdrop Pro, Wingsuit FAP iOS only: L/D Magic Windows only: WS Studio

Has been done Exactly. [inline TunnelSmoke1.jpg] [inline TunnelSmoke2.jpg] [inline TunnelSmoke3.jpg] Android+Wear/iOS/Windows apps: L/D Vario, Smart Altimeter, Rockdrop Pro, Wingsuit FAP iOS only: L/D Magic Windows only: WS Studio

WST is - no question - a useful tool for acrobatics and relative falling (aka f1.0cking), men quickly touching each other, holding hands like a couple, etc. - but instead of paying 1200 Euros for one hour of wobbling in front of a noisy turbo fan, a WS BASE jumper can have: - airfare to Italy or Switzerland, say, from the USA (~400-500 Euro if one shops for it) - a month-long stay at a cheap campground (5-7 Euro/day for BASE jumpers near Brento, for example) - self-cooked food for a month (~200 Euros) - unlimited lift pass at places like Lauterbrunnen, Sputnik, etc. - 100 or more WS BASE jumps in a month - incredible views of Italian or Swiss mountains, healthy hikes, fantastic Italian coffee culture, pretty girls, swimming in beautiful turquoise-colored lakes, tons of other jumpers to meet, etc. etc. - learn much much more about real wingsuit dynamics, like the strategies for: fastest start, longest flight for short-altitude jumps, longest flight for long-altitude jumps, fastest speed, proximity, agility, corkscrews, and even WS BASE acrobatics All for about the same sum of money that just one hour of staring at a mesh takes (not counting even the airfare to Stockholm and lodging and food in the city!) No, thanks. I've long given up on making rich people even richer. PS. #6 - I obviously meant placing a smoke probe in front of the research subject to study the turbulence around it, not the turbulence in the tunnel itself. Android+Wear/iOS/Windows apps: L/D Vario, Smart Altimeter, Rockdrop Pro, Wingsuit FAP iOS only: L/D Magic Windows only: WS Studio

Found the pic, but the one not with the vane, but with Pitot attached statically. (and it looks like it's only the dynamic port*, as there's only one flexible tubing is visible) [inline GibolinPitot.jpg] This is too close and won't produce useful data. * Note to anyone who thinks that only dynamic pressure needs to be measured in clean airflow, and static can be taken anywhere near the body or inside the suit - or vice versa: NO. Both need to be measured in clean airflow that hasn't been deflected even by just several degrees and slowed down or speed up even by 1mph. The difference between dynamic and static pressure is already quite small, and even small inaccuracies in measuring it will result in large errors in total airspeed and its break down on horizontal and vertical speeds. Only vane, only hardcore! Android+Wear/iOS/Windows apps: L/D Vario, Smart Altimeter, Rockdrop Pro, Wingsuit FAP iOS only: L/D Magic Windows only: WS Studio

I think the wingtip is not a good place for Pitot, because this is where the low pressure from top of the wing and high from bottom, meet, and form the vortex. Maybe ~10 inches forward the flow is undisturbed enough, but then there's hazard of pocking the face with the tube on hard opening. Android+Wear/iOS/Windows apps: L/D Vario, Smart Altimeter, Rockdrop Pro, Wingsuit FAP iOS only: L/D Magic Windows only: WS Studio

Belly is the safest compromise. As can be seen from my video above from Eloy, jumping a long belly moint is not a big deal at all. Android+Wear/iOS/Windows apps: L/D Vario, Smart Altimeter, Rockdrop Pro, Wingsuit FAP iOS only: L/D Magic Windows only: WS Studio

Ok, found the vane right in that video: [inline GibolinVane.jpg] Android+Wear/iOS/Windows apps: L/D Vario, Smart Altimeter, Rockdrop Pro, Wingsuit FAP iOS only: L/D Magic Windows only: WS Studio

No, unfortunately. (At least, I don't think so.) If one could point the head with a vane precisely into the split of airstream (where top part of air goes above the jumper, and bottom goes below), then, probably, the length required would be less, maybe 8-10 inches would be enough. But how to determine that point and keep the head at the correct angle? Gibolin (Boris Vonlanthen) used a very short pole, maybe 4 inches, on the helmet, and I think that's just too short, and probably the culprit of incorrect L/D=3.7 measurement he got back in 2009. I cannot find the picture of it he sent me, this video shows what appears to be just the dynamic Pitot tube taped to the helmet: https://www.youtube.com/watch?v=ddvmUqdJ_aA (very interesting video, recommended to everyone! by the way, shows that WST for wingsuit research is just another marketing gimmick - research and testing can be done on the ground by anyone with a boat or car!) So I can't think of a better place for a vane than the belly. No probs for deployment, easy to put on/take off. When I jumped with that analog (bubble) L/D meter (the pic is above somewhere, page 1 or 2) at the Ranch mounted on the helmet, it just felt weird, like a carrot on a stick, and not so safe (hard opening? can hit the chest; linetwists? can get into those; etc.) Maybe the mount can be made more compact by using something like scissor lift mechanism: [inline ScissorLift.png] Android+Wear/iOS/Windows apps: L/D Vario, Smart Altimeter, Rockdrop Pro, Wingsuit FAP iOS only: L/D Magic Windows only: WS Studio

Skydiving with a vane in Eloy in 2015 using L/D Magic running Kalman Filter #4, GPS and accelerometer (Dual Electronics XGPS150A at 5Hz was used, worn on my left hand). Snapped half of the stabilizer in the plane by accidentally stepping on it. Still flew stable like a rock! https://youtu.be/kTIewCg1dZI WSV #2, where art thou?... Android+Wear/iOS/Windows apps: L/D Vario, Smart Altimeter, Rockdrop Pro, Wingsuit FAP iOS only: L/D Magic Windows only: WS Studio

I was able to match the flare perfectly by using Wingsuit Studio. Params used are in the screenshot below (5000ft altitude AMSL is not important, even if I guessed it wrong, the result won't change much). Purrrrrrrrfect!!! [inline Flare_WSS_Params.png] [inline Flare_WSS_Polar.png] Anyone still have doubts in WSE?! WSE stand tall and proud, like 2001 Monolith. No one succeeded in toppling them down! Halle-fucking-luja!!! [inline 2001.jpg] Android+Wear/iOS/Windows apps: L/D Vario, Smart Altimeter, Rockdrop Pro, Wingsuit FAP iOS only: L/D Magic Windows only: WS Studio

I actually did that, on my V-4, after a less than perfect landing on sharp rocks resulted in big cuts on the deflector - I decided to remove it altogether... and noticed zero effect on performance, vs. what was marketed as improving the laminar airflow over the back. This is an example of marketing BS and gimmicks. I believe innie-outie is such a gimmick as well. (I've only used it once and immediately felt that it's not necessary at all.) Remember those times when having a small "refrigerator" on your butt was in fashion? [inline BackDeflector.jpg] Android+Wear/iOS/Windows apps: L/D Vario, Smart Altimeter, Rockdrop Pro, Wingsuit FAP iOS only: L/D Magic Windows only: WS Studio

http://www.dropzone.com/cgi-bin/forum/gforum.cgi?do=post_view_flat;post=2595782;page=1;mh=-1;;sb=post_latest_reply;so=ASC Jeez, I totally forgot about all this old stuff from 2006-7, there was a lot of enthusiasm back then, ideas flowing like a flashflood (lots o' trolls, too, and noise)... I wish we had this enthusiasm in the WS community/industry all these years! Maybe, with me hammering here, we'll see it resurrect in 2018?! I hope! "- build a system (called PFM System, PFM for Pure Fucking Magic ) to accurately measure L/D (acceleration-corrected) and horizontal/vertical speeds (true airspeed - wind and thermals independent) in real time. You will hear in the earphone a sexy voice, "2.4.... c'mon, fucker, you can do better! your horizontal speed is only 90mph, increase it to your sweet spot of 115mph.... 3.0... good boy! 4.0... Are you Maggot?!"

Overlaid const L/D BASE jump polar curves (current Vx, Vy, not sustained), some resemblance in that "hook" shape. (Of course, data from so many pilots in unknown winds, will pepper large areas in polar space, but still...) [inline baseline-polar-withWSE.jpg] Android+Wear/iOS/Windows apps: L/D Vario, Smart Altimeter, Rockdrop Pro, Wingsuit FAP iOS only: L/D Magic Windows only: WS Studio

Very solid, interesting work! That's what I'm talking about. And has been calling for this for 12 years, and finally there are people like Kenny and Hartman who are doing this. This is what scientific R&D is like, data, charts, formulas, software, - not just blah-blah-blah and insults we've seen a lot of in this thread, and I've seen a ton of this in many years. Kudos, Kenny! Halle-fucking-luja!!! It's happening! WSR-2018! I called for WSR as early as 2006-2007, but heard only *crickets* in response. I feel like I'm not alone in the Solar System (and possibly, the whole Universe) anymore. Science will win. "All your base are belong to us!" [inline YurisRevenge.jpg] Android+Wear/iOS/Windows apps: L/D Vario, Smart Altimeter, Rockdrop Pro, Wingsuit FAP iOS only: L/D Magic Windows only: WS Studio