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Flying barnacle... #1653441
16/10/2021 14:05
16/10/2021 14:05
Joined: Dec 2005
Posts: 33,520
Berlin
barnacle Offline OP
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Berlin
Anyone who wants to know what I look like with my feet off the ground (I am told that my takeoffs are on the whole both beautiful and noble!) can see a quick glimpse here: https://www.youtube.com/watch?v=69a9WOcLPMg

(As I see it advert free I'm curious to know what Google decides is a good thing to advertise with it.)

Neil


[Linked Image]
Don't get no respect! Coupe Fiat 1994-2000 - an owner's guide <-- clicky!
Re: Flying barnacle... [Re: barnacle] #1653444
16/10/2021 15:43
16/10/2021 15:43
Joined: Mar 2008
Posts: 5,090
highlands
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highlands
The flight of the Barnacle Bee… laugh


I'm an old git & happy with it,most of the time
Re: Flying barnacle... [Re: barnacle] #1653448
16/10/2021 17:07
16/10/2021 17:07
Joined: Mar 2007
Posts: 16,659
Auld Reekie
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Auld Reekie
Pretty impressive Neil cool and nice camera work too.

I was surprised to experience no ad interruption or even preface.

Last edited by Edinburgh; 16/10/2021 17:08.

BumbleBee carer smile
Re: Flying barnacle... [Re: barnacle] #1653449
16/10/2021 17:16
16/10/2021 17:16
Joined: Dec 2005
Posts: 33,520
Berlin
barnacle Offline OP
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Berlin
Interesting. I probably don't have enough viewers to make it worth Google's while to parameterise the adverts, but I'm surprised they don't top and tail it.

(noscript and ublock origin for the win smile


[Linked Image]
Don't get no respect! Coupe Fiat 1994-2000 - an owner's guide <-- clicky!
Re: Flying barnacle... [Re: barnacle] #1653460
17/10/2021 13:45
17/10/2021 13:45
Joined: Mar 2007
Posts: 16,659
Auld Reekie
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Auld Reekie
Just watched this again and have some questions..

1. Is the 6-cord arrangement standard
2. Is there a difference between and forward- and reverse-takeoff (I liked the last example best)
3. Is the principle of control similar to say, the two-cord stunt kite
4. How long does it take to set up
5. How long was this flight down, and the return to starting point
6. Which parts of the body take the most load

I guess a "flight" is as long as you can make it, as well as a question of stamina


BumbleBee carer smile
Re: Flying barnacle... [Re: barnacle] #1653461
17/10/2021 14:44
17/10/2021 14:44
Joined: Dec 2005
Posts: 1,519
Motherwell - Scotland
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As I said Neil... Your a brave man up there.


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Re: Flying barnacle... [Re: barnacle] #1653463
17/10/2021 16:14
17/10/2021 16:14
Joined: Dec 2005
Posts: 16,603
Corridor of Uncertainty
J
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Corridor of Uncertainty
Our next door neighbour does this, with the edition of a large motorised fan that he wears on his back. The first time we saw him with the kit on his car, he told us he was just off to scatter his fellow-birdman's ashes, following an accident.
Knowing the mishaps you've suffered, Neil, you must really love doing it!
Please, be careful!

Re: Flying barnacle... [Re: barnacle] #1653475
18/10/2021 12:45
18/10/2021 12:45
Joined: Dec 2005
Posts: 21,070
Chertsey in the Thames
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Great to see you land safely this time Neil wink

Re: Flying barnacle... [Re: Edinburgh] #1653486
18/10/2021 19:44
18/10/2021 19:44
Joined: Dec 2005
Posts: 33,520
Berlin
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Berlin
Some answers, Simon

1. Is the 6-cord arrangement standard
Three sets of risers from each side is the most common arrangement these days - older gliders used four sets, but control of the shape of the wing has improved with time. Many high performance (and high aspect ratio) wings now use only two sets for decreased drag, but there are other issues with only two sets that mean you really need to be doing a few hundred hours a year to be able to handle them.

2. Is there a difference between and forward- and reverse-takeoff (I liked the last example best)
A reverse launch is one where you start facing the wing, back to the slope and the wind. You bring the wing up into the wind, and you can see that all the lines are clear more easily, and also that the wing is coming up without any nasties waiting to bite you. With insufficient or no wind a forward launch is your only option and there are a number of disadvantages: you can't see the wing until it is overhead and it's easy to let the wing overfly you; alternatively, it comes up with a problem on one side or the other, or with a knot that you didn't find... I much prefer the reverse launch but do a forward launch if I'm towing (unless the wind is too high!) or in nil-wind conditions.
My favourite launch was the second reverse launch at about 2:20 - the wing got walloped by turbulence and suffered a frontal collapse but I managed to catch it and continue the launch smile


3. Is the principle of control similar to say, the two-cord stunt kite
Similar - though I cause amusement whenever I fly a kite since I hold the controls in the 'wrong' hands - my reflects are build around the paraglider and I don't want to upset them. A kite, though, is usually flown in the power band - full drag - while that's the last thing you want with a wing: mine is thirty square meters. They're both flex wings, but the glider offers much finer control of the brake and the shape of the wing. So I can go up in suitably lift at ten meters a second (six meters is common in the mountains) and pull four g in a tight turn though I try and keep it under a couple of g...

4. How long does it take to set up
A full setup, coming to a new site for the first time, might take a couple of hours, because you're checking local weather conditions and watching the locals to see what they're doing (and particularly, not doing), but if you know the site, the first flight of the day might take half an hour to check the wing and lines, reserve, harness (daily checks) and get your flight suit and helmet and gloves on etc. A subsequent flight on the same day might be as little as five minutes even if the wing is packed back in its bag. Then again, if you're on a tow day, you can land at the takeoff point, spread the wing, hook the line on, and be ready to go in thirty seconds...

5. How long was this flight down, and the return to starting point
On a mountain in the last year, I haven't had a flight of less than half an hour except for the last two shown on the Passy video, which were non-thermal sled rides aka top-to-bottom - about fifteen minutes to drop 700m from takeoff to landing field. The first of those top-to-bottoms was so stable in the air I flew hands off from take-off to arriving over the landing field, steering just by weight shifting.
Longest flight at Passy was an hour and three quarters, cruising all along the ridge (10km or so) at about 2400m; longest from Samoens was an hour or so. In Spain I've had flights of a couple of hours up to 2700m from Ager, just as long but not as high at Algodonales. Getting back up the hill at Passy was a half-hour drive. It's at 1500 metres so already higher than Ben Nevis.


6. Which parts of the body take the most load
The most obvious is the upper arms. In anything other than still air, you need your hands on the controls and you need to maintain a pressure downwards of a couple of pounds, compensating for changes in the shape of the wing. Since your arms weigh rather more than two pounds, you're effectively holding your arms up for quite some time; in the army this would be called a 'stress position'. You can change the position of your arms by taking or releasing a loop of brake line around your hand which moves the hand up or down by a foot or so, which helps. If you can get some time with no control inputs needed or expected (see above) then you can get some relief that way.
Second is the belly muscles: if you're working a ridge in ridge lift or thermal, you do a lot of weight shifting as well as brake control.Try putting all your weight while sitting onto one side then the other, and do that for an hour or two... planking is easy smile
Finally: the brain. This is not an adrenaline sport, it's a continuous mental exercise as difficult as doing the Times crossword or playing chess blindfold. You are continually trying to work out what the wind is doing, what it is likely to be doing in ten minutes, watching for thunderclouds forming, observing other pilots, trying to remember the site rules, any prohibited areas, air traffic control areas, and generally trying to stay up for as long as possible - or on occasion, trying to get down... https://www.youtube.com/watch?v=-VUofPgixWk

Those guys made a fundamental mistake: they got to a new site desperate to fly, and failed to observe a building storm. Cloud suck - massive lift - at the end of the valley can lead to seriously strong wing further down the valley...


I guess a "flight" is as long as you can make it, as well as a question of stamina
I saw last month that the new world distance record now stands at 660km!

As a comparison - some people making fairly horrible attempts at takeoff... https://www.youtube.com/watch?v=k0Cmh8-xy0A (to be fair, selected from a lot of much more successful attempts!

Neil


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Don't get no respect! Coupe Fiat 1994-2000 - an owner's guide <-- clicky!
Re: Flying barnacle... [Re: barnacle] #1653510
19/10/2021 10:42
19/10/2021 10:42
Joined: Mar 2007
Posts: 16,659
Auld Reekie
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Very informative and fascinating Neil, thanks thumb




I've just ordered the gear off ebay, it'll take 6-8 weeks to arrive laugh


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Re: Flying barnacle... [Re: barnacle] #1653525
19/10/2021 17:41
19/10/2021 17:41
Joined: Dec 2005
Posts: 33,520
Berlin
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Berlin
It's perfectly legal to blag a fifteen year old knackered comp wing off the bay and launch yourself off the nearest hill with no training - in Scotland you probably won't even have trouble with the landowner. The technical name for someone who does this is 'organ donor'.


[Linked Image]
Don't get no respect! Coupe Fiat 1994-2000 - an owner's guide <-- clicky!
Re: Flying barnacle... [Re: barnacle] #1653528
19/10/2021 18:17
19/10/2021 18:17
Joined: Mar 2007
Posts: 16,659
Auld Reekie
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laugh

But scarily amusing only....I quite agree with the concept though, as with anything else at this level, that your head principally has to be in the right place.


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Re: Flying barnacle... [Re: barnacle] #1653583
21/10/2021 18:53
21/10/2021 18:53
Joined: Mar 2006
Posts: 1,450
Scottish Borders
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Originally Posted by barnacle
It's perfectly legal to blag a fifteen year old knackered comp wing off the bay and launch yourself off the nearest hill with no training - in Scotland you probably won't even have trouble with the landowner. The technical name for someone who does this is 'organ donor'.


laugh

Something I've fancied doing myself as it's quite an accessable way of taking to the sky - obviously with the appropriate training etc. Did some static lines and free fall in my yoof with the TA then a crash course (not literally wink ) gliding course. Any glider pilots on the forum? Probably the hardest I've worked mentally assessing wind direction, air brake , rudder controls, speed etc. You only get one crack at landing!

Anyway we're relocating to Northumberland early next year and have already identified a club in the area so may be joining you soon Neil. Literally if I get blown off course laugh


77 77
Re: Flying barnacle... [Re: G_Man] #1653590
21/10/2021 22:10
21/10/2021 22:10
Joined: Dec 2005
Posts: 21,480
Aldershot
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Aldershot
Originally Posted by G_Man
[quote=barnacle] Any glider pilots on the forum? Probably the hardest I've worked mentally assessing wind direction, air brake , rudder controls, speed etc. You only get one crack at landing!

Anyway we're relocating to Northumberland early next year and have already identified a club in the area so may be joining you soon Neil. Literally if I get blown off course laugh

I did gliding when I was at school and before I went to sea but apart from a few times flying light aircraft I hadn't touched the controls of a glider for about 50 years until around 2010 a forum member arranged an evenings' flying at Usk Gliding Club.
It was astonishing just how quickly it came back and on the 2nd flight i had control from the top of the winch launch right through landing it.

I remember hearing HoveDan's yell on his first ever glider flight as it went up at about 45 degrees within seconds of leaving the ground

Another odd thing, chatting with the instructor after we had put the aircraft away it turned out that we had both been to the same school, Farnham Grammar, although he was there some years after me.


16VT and X1/9 1500

We must all do our part for the planet.
I unplugged a row of electric cars that nobody was using.
Re: Flying barnacle... [Re: G_Man] #1653610
23/10/2021 06:46
23/10/2021 06:46
Joined: Dec 2005
Posts: 33,520
Berlin
barnacle Offline OP
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Berlin
G_Man, most schools offer experience days, or 'day one' courses where you can find out if you think it's for you. Worth a look on the BHPA site. https://www.bhpa.co.uk/

Originally Posted by G_Man
You only get one crack at landing!


Hopefully not the crack of a wing spar breaking - or an arm! shocked

Neil


[Linked Image]
Don't get no respect! Coupe Fiat 1994-2000 - an owner's guide <-- clicky!
Re: Flying barnacle... [Re: barnacle] #1653629
23/10/2021 20:13
23/10/2021 20:13
Joined: Dec 2005
Posts: 33,520
Berlin
barnacle Offline OP
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Berlin
Another fine link demonstrating why I don't like forward launches... https://www.youtube.com/watch?v=SoW39g55OTw


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Don't get no respect! Coupe Fiat 1994-2000 - an owner's guide <-- clicky!

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