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Kitelife Rev Tutorials


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#21 Theresa

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Posted 27 February 2010 - 12:31 AM

Thank you John, for showing/teaching! me how to add them to the TKS pages! I love it!

Awesome videos!
Great tool!
I'm already hearing positive feedback and Thank yous!!

Hugs,
T

#22 Kitelife

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Posted 27 February 2010 - 08:41 PM

My pleasure T. :)

==

FYI - I've just added English subtitles (CC) to the "Flat Relaunch" as well as "Assembly and Disassembly" videos on YouTube, friends are going to translate those SRT (subtitle text files - opens in Notepad) into Chinese and Thai already, most likely Japanese too.

So... Now I'm looking for French, German and Spanish as well, if anyone here is fluent enough to translate them for me?

My plan is to have these multiple language subtitles available for each video, even for the HD downloads at Kitelife... Comes as an .srt file that should automatically load with the video when using most media players, provided it's in the same folder as the movie file, with the same title. ;)

John Barresi

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#23 Kitelife

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Posted 28 February 2010 - 11:00 AM

Update...

Subtitles for Japanese, Lithuanian, Thai, Chinese, Vietnamese, French and German are all being translated as we speak. :)

Working on getting someone to do Spanish now, I have a candidate in mind already.

John Barresi

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President - American Kitefliers Association

"We cannot direct the wind, but we can adjust the sails."
(found in a fortune cookie - possibly an Einstein quote)

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#24 RevWizard

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Posted 28 February 2010 - 01:08 PM

Update...

Subtitles for Japanese, Lithuanian, Thai, Chinese, Vietnamese, French and German are all being translated as we speak. :)

Working on getting someone to do Spanish now, I have a candidate in mind already.

You forgot the Italian. There are a lot of good and potential fliers in Italy.

Long John (formerly Mr. R)

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#25 FortFlyer

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Posted 28 February 2010 - 03:32 PM

Lets not forget our Portuguese friends who are making quite the boom over there.

Edited by FortFlyer, 28 February 2010 - 03:32 PM.

Jim,
Ft. Taber Park & Brenton Point

Rev's are like a carbon framed out-of-body experience

Posted Image

#26 Kitelife

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Posted 28 February 2010 - 04:10 PM

I didn't forget anything, I listed the languages for which I've received translation volunteers.

If either of you can encourage someone with the necessary language skills, I'd welcome *any* language, as I've said elsewhere. ;)

John Barresi

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"We cannot direct the wind, but we can adjust the sails."
(found in a fortune cookie - possibly an Einstein quote)

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#27 Love2fly

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Posted 01 March 2010 - 08:23 PM

Hi John-

Great spot for the links to your tutorials. Keep up the great work!

"The cost of these tutorials......PRICELESS!" Posted Image
Laura
 
*** Any day flying is a good day; have a great one! 
**** REVS: Fly it, you'll like it!
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Posted Image

#28 Kitelife

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Posted 07 March 2010 - 03:01 PM

We've run into a slight snag with regard to equipment, full info here...

http://kitelife.com/...ideo-tutorials/

On our way to resolution, just cross-posting this here in hopes of some extra support. ;)

John Barresi

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"We cannot direct the wind, but we can adjust the sails."
(found in a fortune cookie - possibly an Einstein quote)

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#29 kwmf

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Posted 05 April 2010 - 12:31 PM

What lines are being used in the low wind video?

After 2 days of being sick, a day of rain and zero wind today (all on a 4 day long weekend) I got the Posted Image and hooked up my SLE (with 1/4" frame) to the 20' lines I made to try do some more low/no wind / street flying practice .... no way I wasn't going to fly on a 4 day weekend.

I can launch and double tap to the top of the window and I can do rough to okay 360's in both directions as well as okay catch and throws ... but my brain is not processing turning over at the top and regaining ground. I even tried to 'cheat' and do it from an up and over, but the same thing goes. I either don't apply brakes and power into the ground (soft grass) or I keep tension on the brakes and don't walk because I'm trying to pressurise the sail.

I know it's the pilot and not the kite, but I was rewatching the low wind tutorial yet again to try get my brain to accept what it needs to do, and it looked like those lines were much longer than 20'

My brain knows what it should be doing, it's just not doing it. I need more time with wind to practice the flight and control skills, but I have to take what I got right now.

#30 Kitelife

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Posted 05 April 2010 - 12:33 PM

In the light wind video, I'm on 60'x90#.

Sounds like it's just a matter of synchronizing the different aspects, I'm sure understand it, now to connect the movements. :)

You might try grading (slowing building up) your brake line tension after the kite turns over and starts dropping.

==

FYI, the directional microphone is scheduled to arrive today (last piece of equipment)...

Once it does, then I'll just be waiting for suitable weather to film more, as it's raining right now. :P

John Barresi

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President - American Kitefliers Association

"We cannot direct the wind, but we can adjust the sails."
(found in a fortune cookie - possibly an Einstein quote)

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#31 kwmf

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Posted 06 April 2010 - 02:33 AM

Hi JB

Hmmmm .... 60's, that would (partly) explain my lack of glide time on the 20's Posted Image

Yeah, as I sit here at my office desk and think about it, my brain knows exactly what it SHOULD be doing .... but once I hit the top of the window and either turn it over or over-fly, it all goes to pot in that moment. I think I need more time in some wind to practice turning over and either hovering (my inverted hover looks like a bucking bronco) or slow dive. I think that would certainly improve my control skill set for the glide and give me more thought time with the actions ingrained.

I have an indoor Rev on the way to play with which I hope helps (or I can just have fun with), as well as some 1.5 Race Rods. Other than that, any suggestions for zero wind flying on a 1.5 series in terms of setup and drills?

Excellent news on the video equipment, there are a number of topics on that list which are immediately relevant to me as well as shortly relevant (as soon as I got the immediate ones down). I actually got the 360 totally functional because as I went into it I was visualising your hand position and walking pace from one of your videos - think it might have been your SS Great Briton fly. The videos are a great tool for visualisation and allows me to channel my inner JB Posted Image

Now bring on the weekend and wind so I can get some practice....

#32 Kitelife

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Posted 06 April 2010 - 03:21 AM

There's no substitute for time on the lines, pure and simple.

For me, it's about going into "danger room" situations that remove crutches like wind and infinite field space... The SS video and my local dock are good examples.

It's those scenarios in which I've learned the most about handling a Rev. ;)

Your extra description of the inverted glide/hover further leads me to believe you're just manhandling it, being too sudden with your inputs.

Grade on/off the brake lines as needed, and try to make your movements a liquid as possible, not to-and-fro switches in the handles.

If the kite bucks while inverted, relax the brake lines so the kite starts to drop a little, then re-tension the brakes.

A slight downward motion, leading edge first, will help stabilize any inverted hover.

John Barresi

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#33 kwmf

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Posted 06 April 2010 - 07:43 AM

I have no doubt I'm being an ape on the controls right now, if I wasn't I probably wouldn't be posting these problems. When I was visualising the 360 I saw on the video and was essentially placing myself into the sequence you ran it felt very smooth and fluid ... so I'd say thats further confirmation of the manhandling.

Since I'm still learning, gross motor skills kick in when the unknown occurs, thats why I have relatively little brake (compared to the pros here) in my setup when I'm learning something - I'm trying to damp out the gross movements some while I build the control needed. As I get comfy I try fly the same with more brake.

I'm learning loads about controlling a rev in these situations, but my poor brain still seems to stall sometimes. A bit of time in some wind and a lot more practice. I know I'll get it eventually, just orientating myself sometimes along my travels Posted Image

There's a chance I get to fly in no wind tonight, will see how that goes.

#34 bartman

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Posted 06 April 2010 - 08:37 AM

"Ape on the controls" is a good description that I can relate to.

I'll tell you what I did with the inverted slides though.

First, I made longer top leaders so I could double the brakes then I put on brakes so I didn't have to fight my inverted hovers. You mention not using as much brake compared to the pros, but you are doing a disservice to yourself by not working with more brake right away. I was the same way until Rich C. pushed that advice on me and when I did everything became so much easier. Save yourself some time and frustration and get more brake. You don't need to be a pro to use brake (I'm a perfect example of that).

Second, once I got the hover sort of under control I did "ape" the controls to make it slide. I over exaggerated the movements to see what it would do and why it wouldn't do what I thought it should do. So I was getting some pretty wild slides with those gross movements, but I was learning easier what movements were doing what. Now, I still have slide issues, but generally much better and less ape as I continue to refine the exaggerated stuff.

Another idea I started last summer is to stop treating the kite like a fragile piece of glass. Really they are a lot tougher than they look (* not that I am saying be crazy with it) and taking that to the next level and just "try" stuff and see what the kite does. It might not be pretty at first, but you'll learn what does what and how to turn it into something that does look good. The kite wants to fly and it wants to be stable in the inverted hover. In fact it is the most stable in that position although it took me a while to feel that way even though I knew logically it should be. Now it is the "rest" position when something is going wrong or I need to talk to someone while the kite is still in the air, etc..

Of course once you figure out one thing you then see how taking it a bit further turns it into something else. Terry W. helped me to get a nice 180 turn figured out and a bit later it occured to me that I could take that 180 and make it into a 360 pretty easy so back to the gross movements and refining process.

Finally, repeat like John B. says. Whenever I go out I go through each "thing" many times between just experimenting and fooling around. Each time I tell myself that this repetition will mean more refined moves later and, ya know, it works. Things get more stable, the death grip loosens up and all the good things like that start to happen.

I'm rambling, but I can see exactly where you are right now and not a whole lot further ahead of you. Keep asking questions and thinking it through. Getting feedback on your thoughts helps a lot for sure.

Bart

#35 Kitelife

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Posted 06 April 2010 - 10:10 AM

Aye, Bart has it right on... The less brake you have, the more you need to move your handles to apply brakes, and the more variables in your inputs.

More brake, smaller inputs, less pilot error.

Great post Bart.

John Barresi

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#36 Felix Mottram

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Posted 06 April 2010 - 12:40 PM

Aye, Bart has it right on... The less brake you have, the more you need to move your handles to apply brakes, and the more variables in your inputs.

More brake, smaller inputs, less pilot error.

Great post Bart.


With the 'long arm' notion that I have advocated there might be even smaller inputs and subsequently still less pilot error.

If 'long arm pulls' speed up one sail side relative to the other a turn can be executed without using the brake/forward input. If the resulting handle/arm position is good for the exit from the turn then a crisp/stable conclusion is achieved. The simplest example would be 180 degree upward wing tip turns. The handles will need to be held horizontally in order to avoid brake/forward input.

The advantage that I see in adopting this strategy is that it works across most of the wind speed range as long as sufficient brake is set for higher wind speeds. A one yard/metre pull on one handle will have equivalent impact in low or high wind speed.

Felix

#37 bartman

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Posted 06 April 2010 - 12:43 PM

I consider more brake to be one of the "big secrets" to Rev flying. When you don't know about it you struggle more than you need to and wonder why it always looks easier for everyone else, but when you are let in on the secret you see it can be easier. And then you're really part of "the club"! Posted Image

So right now that brake secret is being whispered to you.

Bart

#38 Felix Mottram

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Posted 06 April 2010 - 12:55 PM

I consider more brake to be one of the "big secrets" to Rev flying. When you don't know about it you struggle more than you need to and wonder why it always looks easier for everyone else, but when you are let in on the secret you see it can be easier. And then you're really part of "the club"!

So right now that brake secret is being whispered to you.

Bart


We never articulated it as such but after trial and error over a number of years found that 'if the kite was actually quite difficult to launch' in the leading edge up position there were significant advantages in overall control. The problem is that 'a beginner' would possibly not overcome the 'difficult to launch' bit and retire hurt and give up.

There is a learning curve and possibly no short cut...

Felix

#39 Kitelife

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Posted 06 April 2010 - 01:06 PM

Felix also hit on a good point...

The best pilots actually use nearly the same amount of input regardless of speed or snap, we just load up (draw back) and depressure (give toward the kite) more less to determine the strength and speed of what we're doing... If you watched only my hands for any given wind condition, the inputs don't change drastically, just the speed and amount of give or take that I put on the lines, keeping the line tension in my control, tensioning or detensioning depending on the amount of pull, speed of the kite and desired result.

Race frame, 1.5 is really ideal for what you're learning... Good balance of sail area, weight (inertia) and responsiveness... Think of it like a skateboarder instead of a kite, throw your weight into glides, stay out of the stall point (zero line tension), always jaw an exit route to keep some inertia, etc, etc.

The transitions between being a kite, being a glider, etc... 60' is long enough to glide and such, gives room to actually do stuff, and short enough to easily maintain line tension once you get the feel for it.

I hope that I've managed to describe all that clearly?

It's theory, deep mechanics.

John Barresi

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(found in a fortune cookie - possibly an Einstein quote)

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#40 Felix Mottram

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Posted 06 April 2010 - 01:29 PM

Felix also hit on a good point...

The best pilots actually use nearly the same amount of input regardless of speed or snap, we just load up (draw back) and depressure (give toward the kite) more less to determine the strength and speed of what we're doing... If you watched only my hands for any given wind condition, the inputs don't change drastically, just the speed and amount of give or take that I put on the lines, keeping the line tension in my control, tensioning or detensioning depending on the amount of pull, speed of the kite and desired result.

<snip>


JB,

I think that I have to try and translate here. I think that we are probably in complete agreement but the terminology may be confusing.

To put it very simply, if we take the model of a tissue and bamboo fighter kite, pulling on the line causes the kite to bow and travel forward in line with the keel of the kite. The Revolution kite has two keels (the upright spars, side by side). If we accelerate one keel it will turn around the other one...

With the Revolution we have the additional capability to adjust brake/forward for each side of the sail 'on the fly'.

The best pilots will be able to take advantage of directional tracking and appropriate angling of the sail at any point in the wind window. There is no magic, nothing deep, only practical considerations.

Felix




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