Seeing Wind Flow & Drag - BANDARRA

[@tunicolage]

Old VHS tapes make excellent telltales! Also, the tape is reflective and can be used as a very light wing "windsock" as the tape moves with the slightest breeze and can be seen very far

[@AndreBandarra1]

really good idea, thanks!

[@Les__Mack]

Good to know Antonio. Thanks!

[@Haralddv]

the wingtip vortex is really visible, nice!

[@bigsailboatproject]

Super interesting! We use them on sails so why not! OMG you can see the tip vortex, proven! cool

[@rogergusty1802]

Excellent filming, interesting subject and a great way to learn 'about things'. Looking forward to your next video already.

[@u0000-u2x]

3:33 perfect tip vortex!

[@FoxUSArmy]

Brilliant! Excellent subject and simple but intuitive visualization tool for little or no cost. I'd have loved to see some stalls with those on so we can see which part of the wing stalls first in various types of stalls. I'd also love to see those on for a soaring day so we can see what happens to those streamers in strong lift or even weak rotor. As simple as this is, it goes a long way to help make one a better pilot by SEEING what we typically have to feel and visualize by analogy (e.g. what is the wind actually doing around the wing). Well done, sir.

[@AndreBandarra1]

Have you seen this one? It was a lot of fun too kzbin.info/www/bejne/jaapZKuCrsyAaJI

[@jimfuhrman8665]

Excellent content and great photography, well done André and Gemma!

[@thedok7333]

STUNNING...!! 👍💖 AND THE MUSIC WAS PERFECT!! 👌

[@johannel8367]

Very good illustration of wing tip vorticies, now people can see why tip stall is first to occur.

[@FrekeOne]

I thought it was last.

[@johannel4141]

@@FrekeOne Wingtip stall is unlikely to occur symmetrically, especially if the aircraft is maneuvering. As an aircraft turns, the wing tip on the inside of the turn is moving more slowly and is most likely to stall. As an aircraft rolls, the descending wing tip is at higher angle of attack and is most likely to stall. As this applies mostly to Paragliders, Aircraft will stall the root first, YES you are correct there. I had to look at the dihedral effect, "the aircraft will tend to slip to the stall side.."and paragliding you send most in a slip, because we not able to out run the wing from the side's. So the lee-ward side tip will stall as the wind ward side will fly cause a uncontrolled "turn" which effect is a slip for a while before the pilot can react and turn. If we look at to late and to low the wing will slip, and the tip stalls only for a second before the it will twist or turn before you can re act, you end up with a helicopter. regards

[@ripmanridin7092]

Interesting stuff...........thanks for sharing!

[@flierbill]

great video ! Thank you

[@livingyourbestlife711]

great idea (experiment) to show us some wing aerodynamics. a couple of questions: 1. what type of radios do you use? 2. what type and size of wing are you flying? Portugal looks beautiful. If I wasn't planning an Israel trip this fall, I'd go visit you in Portugal. Hopefully, someday soon! thanks for sharing.

[@AndreBandarra1]

the classic Baofeng radio and I'm flying Gemma's Ion 2 size S, but I'll fly anything really

[@riazali406]

Exlnt imfron my dear bro😊

[@JTWardle]

Fun test! Way to go!

[@mbrunnme]

Only 1:20 in, but the finger release gets the like.

[@AndreBandarra1]

ahahah xD

[@MitchG]

I loved seeing the turbulent area behind your harness. Can you do a similar test with the tail tales? attached to different harnesses? Rumor is you can gain or lose a point in glide with just a harness.

[@AndreBandarra1]

great idea Mitch!

[@u0000-u2x]

Please try installing a winglet :P Maybe a carboard/stiff foam extension? Curious to see if it helps with the wingtip vortex. Also curious if Advance's signature 'winglet' has any impact... maybe they should lend you a wing for testing!

[@AndreBandarra1]

Don't think they do anything, it's a marketing thing (said one of their former top designers)

[@Ripstop_pilot]

Cold? COLD! 2200ft in the uk on saturday was gorgeous tshirt weather. How can you be cold?

[@markmcgoveran6811]

I've considered this any number of times as a permanent attachment so I can see what's going on.

[@ShahidKhan-pt7ko]

Very nice

[@cluelessbeekeeping1322]

While I know Nothing of parakickassgliding (what a fun looking sport!), I can learns' ya something regarding tale-tales. (this is my own creation, it works great!) Draw a line parallel to the flow. Cut (yes, not yarn, cut) some tale tales out of that nylon stuff (I used to know it as rip-stop-nylon) Let's use 4" for this example. On the line you've drawn, place the tale tales pointing backwards (yes, really) every 3" This will make them overlap when flying giving a nice strong solid line. If they deviate, it shows up. Try it just once. Every time I'd do this on a boat I was racing people would love it. It gives extra 'pop.'

[@AndreBandarra1]

Cool idea!

[@cluelessbeekeeping1322]

@@AndreBandarra1 Thanks!

[@jaycifer6]

Hello 😀 question - can i use my paraglider without a speed system it does not have this 😕 i had a look on ebay found 1 but do i need it ?? Im itching to get up there i need to start ground handling asap afore summer is out 🤪 thanks please help jaycifer 😀

[@Ripstop_pilot]

You can fly without a speed system. Many do. Just be selective of the weather you fly In and the environment.

[@jaycifer6]

socommk233 hey thanks for speedy response great stuff 👍🤛🌈

[@jaycifer6]

socommk233 hey cool videos bro free like the wind 👍🌈 good soundtrack too 🤘

[@Aiutociaobaci]

Hope everything is good man

[@cluelessbeekeeping1322]

What's your take on a Paratoys Momentum Paraglider. Size is 28m. Are they any good? There is one for sale on craigslist. $400, is that a fair price.

[@AndreBandarra1]

No idea but the name doesn't inpire a lot of confidence!

[@cluelessbeekeeping1322]

@@AndreBandarra1 Thanks. Hey, where do you and Gemma fly? FYI, you two are a cute couple.

[@AndreBandarra1]

@@cluelessbeekeeping1322 Portugal, in and around Nazare :)

[@cluelessbeekeeping1322]

@@AndreBandarra1 I'm jealous of your site! Keep the videos coming! =)

[@johansmitphotography]

Using a baofeng?

[@AndreBandarra1]

always! like Maxime :)

[@flyingsaucersman]

Hi what was the wind speed that day?

[@AndreBandarra1]

varies a lot between the top and the bottom of the hill but I'd say around 35km/h average at the top

[@flyingsaucersman]

the nova ion was coping well and without speed bar.(im just about to buy one myself whats your opinion of the wing for a transition wing)?

[@AndreBandarra1]

@@flyingsaucersman It was coping ok but it was a bit slow and I'm was flying it well over the weight range, it's Gemma's wing. What are you transitioning to/from?