Amazing idea! I think that maybe while giving instruction, you should attach some to the student so you can see where they are looking

@PureGlide

Жыл бұрын

That is BRILLIANT thank you fro the tip

@marklundeberg7006

Жыл бұрын

​@Fidd88 good idea, that would help scare away the bugs trying to enter the aircraft during flight.

@glennllewellyn7369

Жыл бұрын

...using a stapler.

Tim, are you just stringing us along😂

@PureGlide

Жыл бұрын

You know what really needs more yaw strings? A dash 8

Very nice, and really educational and illustrative. Imagine birds. Each of their feathers is attached to nerves, they sense the air flow with every fibre of their fluffy being. They are literally made of Yaw Strings.

@PureGlide

Жыл бұрын

True!

@benrobertson7855

Жыл бұрын

Yep .

Dammit, totally fell for it, had to read the comments to bail me out. What a plonka!

@PureGlide

Жыл бұрын

Mission Accomplished!

The 👏 more 👏 information 👏 you get 👏 , the 👏 better

@PureGlide

Жыл бұрын

Glad you think so!

Have you seen the new method of yaw string mounting? A 1.2mm hole is drilled in the canopy and the yaw string is fed through from the inside the canopy. Saves having a nasty piece of tape on the canopy and the length can be adjusted in flight to match the airspeed so that you never get that silly end wobbling on the string.

@PureGlide

Жыл бұрын

I was SO tempted to drill holes for them all! haha

The Lord of the Strings! 🧙 The yarn shop had a great day 😁

@PureGlide

Жыл бұрын

They sure did, I'm now their favourite customer

You invented a new gliding term: “The air is a bit stringy today!” 😄 I liked the “cyclone effect”, quite mesmerizing! 😵‍💫

@PureGlide

Жыл бұрын

Lol I love it

I’m not sure if this is an April fools joke, or just great timing 🤔😂🎉

@PureGlide

Жыл бұрын

;)

Actually lol'd at the internal strings 🤣

@PureGlide

Жыл бұрын

Excellent :)

Revolutionary. I am off to the club to modify all our aircraft accordingly this morning. Thanks Tim!

@PureGlide

Жыл бұрын

Awesome :)

That was inspiring Tim. I’ve now taken your idea to the next level and found that if I attach enough yaw strings to my body I no longer need a glider. This is mind altering at a Timothy Leary level. Who’d u thunk it. 😂

@PureGlide

Жыл бұрын

That really is another level of genius!

This is the future of gliding.

@PureGlide

Жыл бұрын

Agreed!

the funniest video I will see on the 1th of april 😂

@PureGlide

Жыл бұрын

Thanks Manuxl_05!

CLEAR TAPE. game changer. I was able to up my % of yaw string to viewable canopy ratio by over 30% with that.

@PureGlide

Жыл бұрын

Oh yes, I am a savage

I'm not a glider pilot so I didn't realise it was a joke until the internal yaw string part lmao

@PureGlide

Жыл бұрын

haha perfect that was the goal

You can keep "your" strings, I'll use mine. Quite a yarn you're spinning there 🙂

@PureGlide

Жыл бұрын

I think your models need more yaw strings...

@stephaniekent8483

Жыл бұрын

haha its called pulling your own strings .

@stephaniekent8483

Жыл бұрын

@@PureGlide yaw strings in gliding...woolies in sailing...good video very informative. :)

@stephaniekent8483

Жыл бұрын

I put a yaw string on my Bird of time... but needs to be bigger as I just couldn't see it lol

@xjet

Жыл бұрын

@@stephaniekent8483 Just use the towline! 🙂

I love yaw strings! In the flight test world we use them all the time, we call them tufts.

I did this, then took my cat flying. He liked batting at the strings from the inside. I wouldn’t let him put paws out the air vent, though.

@PureGlide

Жыл бұрын

Yeah fair enough re paws out the air vent, gotta be sensible about these things

All with a straight face!

@PureGlide

Жыл бұрын

;) that's my face for most things haha

LOL! The whole video was entertaining, especially the parts about drag (going in circles!), internal yaw strings, and the "advertisements" at the beginning and end. Good video!

@PureGlide

Жыл бұрын

Thanks GivenRandy! Note the ad at the beginning is real! I suspect I should have made it more obvious haha

@RandyGiven

Жыл бұрын

​@@PureGlide Thanks for the clarification, which I also just saw in one of your other posts. Sorry for messing that up!

Nice visualisation of what is unseen...

@PureGlide

Жыл бұрын

Cheers!

Tim, the pilot, flies with skill, With twenty yaw strings, he can thrill Each string a guide to how he flies, Helping him navigate the skies. As he soars through air and clouds, The yaw strings help him, making him proud. For with each string and every turn, Tim can feel the glider's every yearn. The twenty strings may seem a lot, But they help Tim fly without a knot, Showing him how the glider moves, Guiding him through air grooves. So let us praise the yaw string's might, And Tim, the pilot, taking flight. For with twenty strings, he flies with grace, Guided by each one, in this endless space. ...a bit of chatGPT fun.

@PureGlide

Жыл бұрын

Haha that's awesome Dave, thank you for taking the time to craft the chatGPT query :)

I laughed all the way through!! Such a ridiculous (and intriguingly interesting) idea. Great fun video for April the first!

@PureGlide

Жыл бұрын

Yay! Thank you!

I fly more than 30 years with a sidestring (on both sides) first in a DG400 to optimize flaps (today DG505) when I was in the Akaflieg Köln, today in a LS8. The cheapest and easiest to mount method to see your angele of attack. There is a manual on the Akaflieg Koeln homepage, but I prefer to set my marks during a longer testflight.

You spun quite the yarn there! Maybe with a few less strings on the canopy (so as not to distract too much), but this should be done on training gliders for sure!

@PureGlide

Жыл бұрын

:)

What a great illustration of air flow. So clear so fast. Very nice

@PureGlide

Жыл бұрын

Thank you! Cheers!

Need fine print on the packaging…” Do not fly with your cat” 😂

@PureGlide

Жыл бұрын

😂

Being a Sailor I use similar on my yacht, we call them "Tell tails" . We have several on the sails from top to bottom , shows when the sail is stalling, it stalls from the top first. Also put them on the side rigging to give us the apparent wind angle. More accurate than electronic instruments although the instruments are great for night sailing.

@PureGlide

Жыл бұрын

The sail really is just like a big sideways wing :)

@rodhinds4592

Жыл бұрын

@@PureGlide Precisely , I hope to start Glider Pilot training soon. You have definitely inspired me.

Finaly you're experimenting with strings and just dicsoverd the use of side strings as angle of attack indocators by the way. We are so proud of you!

@PureGlide

Жыл бұрын

haha thank you!

The ones on the canopy also destroy the laminar flow. I wouldn't mount that many. Consider that behind every piece of adhesive tape and thread, a large area is no longer laminarly circulated. But for demonstration purposes this is very interesting!

@PureGlide

Жыл бұрын

;)

this was surprisingly useful and educational.

@PureGlide

Жыл бұрын

Awesome to hear! Yeah I enjoyed doing it too, and it really was interesting to fly with the strings

2 things... - This nonsense is exactly what the world needs more of - thank you for this. The whole video was excellent! - Some of this was unironically really interesting

@PureGlide

Жыл бұрын

Yeah agreed! haha

That is so simple, cheap and so f****** awesome!!!

@PureGlide

Жыл бұрын

Awesome eh :)

I note the date but actually this is genuinely interesting

@PureGlide

Жыл бұрын

Glad you enjoyed it!

One string to rule them all...

Great video Tim! Interesting to see the airflow patterns, but I think you were yaw stringing us along😉👍🏻

@PureGlide

Жыл бұрын

lol I see what you did there!

Some of your best work in this one. For a joke video it's quite fascinating.

@PureGlide

Жыл бұрын

Thanks Anton :)

When you set out to make an April fool's video and it turns out to be much more interesting than anticipated. :-)

I know you're taking the piss, but that was legitimately fascinating! I look forward to this option being added, if not to our club gliders, at least to Condor? Brilliant stuff.

@PureGlide

Жыл бұрын

Glad you enjoyed it :)

A ball of yarn and a roll of tape is a dangerous thing😂. Very interesting.

The more strings the better. Wait, I can't see anything but strings!

@PureGlide

Жыл бұрын

lol

Fascinating, truly fascinating. These yaw strings allowed the airflow around the glider to be seen and not imagined. I found it interesting that you were surprised about the air being affected in front of the airbrakes when they were opened. I’ve had the misfortune to have various “toilet” failures on jet aircraft, Fokker 70’s in particular. Sometimes the fluid escapes and when it does you can see the airflow around the wings. Air between one and two chord widths ahead of the wing is moved apart, and this still happens at 300-400 TAS. Not surprisingly this also happens to gliders. There is something to be said for having a club two seater to be decked out in multiple yaw strings and for a short demonstration and instruction flight to be given to any interested members to help increase their understanding of gliding.

The most amazing thing about this video is seeing the joy in you learning something new! ❤

@PureGlide

Жыл бұрын

So true!

Great video for the start of April.

@PureGlide

Жыл бұрын

Glad you enjoyed it

Thats so cool👍

This video is a work of art 😍👨🏻‍🎨

@PureGlide

Жыл бұрын

Thanks Will!

Fantastic demonstration 🙌

@PureGlide

Жыл бұрын

Thank you! Cheers!

Metric yaw strings are readily available but for anyone requiring Imperial string I have a small quantity of New Old Stock string in all Imperial sizes at 14 Guineas a foot. PM me for details.

@PureGlide

Жыл бұрын

Shit I didn't even THINK about offering an imperial option. What an idiot I am sometimes

@leerogers6423

Жыл бұрын

@@PureGlide .There are still a lot of the old Slingsby sailplanes out there , it would be a shame to see the grounded for the lack of serviceable string.

Your strings are ace! Quite a trip there!

@PureGlide

Жыл бұрын

Glad you like them as much as I do :)

Very Cool !

@PureGlide

Жыл бұрын

Thanks!

Had my first flight with Steve today, what a legend. Your KZread videos are awesome Tim, they have given me a real appreciation of the principles and theory of flight and flying gliders. Steve wasted no time getting me flying and practicing rudder stick coordination in a a brand new top of the range tandem glider - where else could you do that? Great work Piako Gliding club, thank you.

@PureGlide

Жыл бұрын

Awesome glad you had a good time! Sorry I wasn't out there, just came down with Covid. Maybe see you out there another time. Cheers

Despite this being an excellent April fool's, I do like the idea of several strings better visualising what the bird is doing in the air. Indicators that can be "perceived" are better and less distracting than those, which need close inspection. (Digital vs analog)

It says 31th of March for me, this surely can't be an april fools joke. I am gonna equip my glider like this right now!

@PureGlide

Жыл бұрын

Yeah exactly right! and it's on the internet so it must be true

Maybe green strings on the right and red on the left as an aide memoire for those pilots suffering left-right agnosia?

@PureGlide

Жыл бұрын

Genius!

V funny, but fascinating too. Nice work, keep up the great videos. 👋

@PureGlide

Жыл бұрын

Thanks! 😃

Oooo.... show this to Roger Brown! He is keen on yaw strings!

@PureGlide

Жыл бұрын

Will do!

When you think about it, birds are effectively entirely covered in them, so they’ve always known this 🤣

@PureGlide

Жыл бұрын

What, sheeps wool?!

Someone should tell Tim he has instruments in the cockpit to do the job of the little strings.

Thanks for the test and happy April fools! I learned a lot today. Adding strings on the side to see angle of attack kinda works but also really doesn't work in a side slip.

@PureGlide

Жыл бұрын

Yeah there is definitely some benefit there :)

wow, cool. It is necessary to introduce this into the training program.

thanks ! I think every instructor should do this test with their students! i'll propose this in my club near Paris.

@PureGlide

Жыл бұрын

Let me know how that goes down :)

A longer string, a hook, you can drag it over a lake and get the dinner... 😁

@PureGlide

Жыл бұрын

lol that's great

Ahh you kiwis and your wool! Do anything to flog some more. ;)

@PureGlide

Жыл бұрын

Always!

I know what day it is, but this really is pretty cool to see!! 😆

@PureGlide

Жыл бұрын

Haha yeah fun eh

fantastic =)

@PureGlide

Жыл бұрын

Many thanks!

Love it. Brilliant! This should be standard on training gliders. Why have I never seen it before?

@PureGlide

Жыл бұрын

Crazy eh!

I have added yaw stringss to my forehead, my dog and my cat. I fly a B 737 so I do get some weird looks.

@PureGlide

Жыл бұрын

you know it would be interested if a typical glider yaw string stuck onto a 737 window would stay on for long... just throwing ideas out there ;)

@paulw176

Жыл бұрын

@@PureGlide I could tape my cat to the window he's a gripper!

Lol that was excellent!

@PureGlide

Жыл бұрын

Thanks Luke :)

I would really like to see a fully developed spin with the wing strings, to see how much of the outer wing is actually stalled. Maybe in a future video on spins?

@PureGlide

Жыл бұрын

Yeah I'd like to do that too, I couldn't get high enough that day to do full spins sadly. But another day :)

Fools aside, I did not realize that the wing stalls that much earlier towards the inner part... Those stalls, the inner string was completely vertical while the ones further away were completely laminar... I mean I knew most gliders stall the inner part first, but didn't know it was that bad. Interesting stuff

@PureGlide

Жыл бұрын

Yeah glad you enjoyed it! I might have to do another one with more strings on the wing... it'll depend on the shape of the wing too.

@rederos8079

Жыл бұрын

@@PureGlide That would be really interesting to watch, especially if you include full spins and such... If the Ventus actually does spin :D

@Sozjot

Жыл бұрын

Most aircraft have washout designed into the wing. The angle of incidence decreases from root to tip and enables roll control as the wing starts to stall ie in the flare.

@frodo9649

Жыл бұрын

The profile/angle of attack of a wing is designed to stall inside first for 2 reasons: 1. It creates turbulence that hits the horizontal stabilizer, decreasing its effectiveness to pull up further and give the pilot feedback on the stick before the wing fully stall. 2. The ailerons are on the outside and increase the angle of attack on one side when deflected. By stalling first in the middle, you have more roll authority before inducing a spin.

I flew gliders on MSFS and never could quite understand the string, but this made it immediately apparent. 😮

@PureGlide

Жыл бұрын

Yip, it's primarily an indicator if you've got the correct amount of rudder/yaw in or not!

This immediately gets me thinking of so many things... First off I wonder how much additional drag there is from so many, and if it might be worth over engineering them a bit to make them create as little drag as possible. Now how you'd do that idk exactly yet, but I'd imagine there's many ways you could improve certain aspects of them. I also then wonder how you could go about recording data from them and then how you could use that data meaningfully, in real time even, turning the whole plane into a sensor of sorts to tell you about the air around you. I fly RC gliders, so I immediately wonder how I could implement these in a meaningful way onto an RC glider. I'm not flying from the perspective of the glider of course, and I can't see them from the ground, but I wonder how hard it'd be to make a sensor on the glider give me some form of relative air movement data to my controller. Just listing random bs but I've never really though about these before, since they're not used for obvious reasons on RC gliders.

@PureGlide

Жыл бұрын

Some fun thoughts!

🤣Very creative!

@PureGlide

Жыл бұрын

Thank you! 😁

Expect to hear from OSTIV for this valuable research!

@PureGlide

Жыл бұрын

I expect so! haha

Finally someone visualised string theory 😂

@PureGlide

Жыл бұрын

lol that would have been a great video title

Aodio cassette tape works great well except in the rain. Used to use it on my sailboat as telltails.

@PureGlide

Жыл бұрын

Good to know!

@eisenhans9

Жыл бұрын

Wonder if it matters what music was written on the tape

Haha, like a hairy glider😆

@PureGlide

Жыл бұрын

lol

This is such a great idea, that even Cessna's should have it! Proper airflow can save fuel and money on a long cross-country flight, wohooo! $$$$ 🤑💰💸

@PureGlide

Жыл бұрын

Good point!

Actually a very cool demo! :) The upward lift of the rear strings on the canopy was something I didn't expect but maybe makes sense if you think about the fuselage being pushed sideways and a low pressure area developing. (At least that's my rationalization?)

@PureGlide

Жыл бұрын

I suspect it’s simply the sink rate of the glider, when side slipping we are going down!

@KestrelYI

Жыл бұрын

@@PureGlide Fair point, it is a slip :)

@truescalefpv4089

Жыл бұрын

Im thinking if the fuselage is hitting the air at somewhat a sideways orientation, the air flow has to slit, some going uwards some downward around it🤷🏽‍♂️.

Well that's fairly interesting.

@PureGlide

Жыл бұрын

Yeah I thought so too!

as funny as it is, I actually think it's nice to see the streams of air

@PureGlide

Жыл бұрын

Yeah agreed!

Those cockpit strings would be fabulous ! Especially after the “ mutha “ of all roast chicken dinners .. perhaps life saving in a 2 seater …… for the bloke in the front . You’d know EXACTLY when to duck ( or jump )😂

@PureGlide

Жыл бұрын

lol

I just leave my canopy cover on for a 100% string coverage!

@PureGlide

Жыл бұрын

lol

No such thing as too much data 😁

@PureGlide

Жыл бұрын

Exactly!

Dammit, I sat kicking the floor, when you yawed! Nice joke, but interesting to see, thanks!

@PureGlide

Жыл бұрын

:) thank you

Thanks for the video. I've been waiting to glide all year but unfortunately the weather here in England has made it impossible so far.

@PureGlide

Жыл бұрын

Crap! That's winter for you :)

Amazing timing! To think you came up with this on the first of April. 😅

@PureGlide

Жыл бұрын

Would you believe it took a good part of a week to make this haha

Happy April Tim.😂

@PureGlide

Жыл бұрын

Same to you :)

@JohnPWRK

Жыл бұрын

@@PureGlide The season is just getting going up here in the north. Your videos alway help us while away the winter; thank you for your efforts and fly safely. Tally ho! John

Lol, the ones on the inside...

@PureGlide

Жыл бұрын

Glad you enjoyed it :)

If you added some knots to them you would be able to know how many knots you are doing ;)

@PureGlide

Жыл бұрын

GENIUS!

Hairy Glider!

@PureGlide

Жыл бұрын

Oh yes :)

@daszieher

Жыл бұрын

I'd rather it be called "furry". Furry seems cuter than hairy. Hairy is for gum balls that have been licked and then rolled under the couch in a home also inhabited by a cat.

👍 AWESOME !!! 🍺🍺🍺😁

@PureGlide

Жыл бұрын

Thank you! Cheers!

Yawful yarn, Tim.

@PureGlide

Жыл бұрын

Touché!

@bungee7503

Жыл бұрын

@@PureGlide You’re just stringing us along.

I just realized that it's tomorrow on your side of the globe.

@PureGlide

Жыл бұрын

;)

The bucket hat you wore in the intro

My company sells glue-on rudder extenders for more yaw, we are also testing aileron extenders for faster roll rate.

@PureGlide

Жыл бұрын

Imagine the possibilities!

Good thing you chose red otherwise they would have been too slow to keep up with the glider

@PureGlide

Жыл бұрын

True! that was lucky, I didn't even consider that properly

Tim, that was so interesting. I'm an aerospace engineer so you're talking my lingo with the yaw strings. Question: would you remove some of them for racing events to minimize drag? Might it be good to fly for a while with all of them to get a sense of the flow around the glider and then remove all but the "essential" strings? Many of the strings showed the same flow characteristics.

@PureGlide

Жыл бұрын

Glad you enjoyed it!

Inside string! You may be on to something here! But I think they will only work properly on 01APR of each year! ;-)

@PureGlide

Жыл бұрын

;)