*


All times are UTC + 1 hour



Post new topic Reply to topic
 [ 55 posts ]  Go to page Previous  1, 2, 3, 4, 5, 6
Author Message
 Post subject:
PostPosted: Wed Oct 30, 2002 7:12 pm 
regardign the position of knots at the v line split.

on the psycho there are effectively two sets of v lines which correspond to the a's and b's.

if your kite is underflying, as most 9m do on delivery, move the a' knot away from the kite by about 2cm, until kite flys overhead. stop before it front tucks.

once you have this right then set up the b line to give the greatest depower range, you'll find this by trial and error.

this gives you the shallowest possible aoa but the greatest stability and depower range.
if you want to jump higher and harder then let the front knots out a little until the kite does not come overhead. this gives a more powered feeling and less effective depower but bigger jumps.

also remember that the depower effect is not linear on these kites the effect increases in a non-linear fashion ie the last 2 inches of trim strap matter more than the first two inches of bar movement.


Top
 Post subject:
PostPosted: Thu Oct 31, 2002 8:53 am 
Offline
Very Frequent Poster
User avatar

Joined: Thu Sep 12, 2002 1:00 am
Posts: 613
Location: Israel
Quote:
also remember that the depower effect is not linear on these kites the effect increases in a non-linear fashion ie the last 2 inches of trim strap matter more than the first two inches of bar movement.


In that case the 12.5 should go to 30knots without a problem :grin:


Top
Profile
 Post subject:
PostPosted: Tue Nov 05, 2002 10:32 am 
Hello Andres, any news from you with your weekend with Ted B. and his Psycho trim and exprerience??

We are curious.


Top
 Post subject:
PostPosted: Tue Nov 05, 2002 12:32 pm 
Offline
Very Frequent Poster
User avatar

Joined: Wed Oct 16, 2002 1:00 am
Posts: 5646
Location: Denmark
Quote:
On 2002-10-29 16:52, Anonymous wrote:
cold humid air is more dense than hot humid air.


Yes - but dry air is more dense than humid air !

The water molecules have lower atomic weight - 18, whereas air (2 Nitrogene and 2 Oxygene) are much heavier - 29.
So the more humid the air is (at the same pressure), the less dense it will be, and lift less.

But the difference is very small - only up to 2% in density, from 0 to 99% humidity in warm air.

Temperature and pressure changes means much more for the lift (density = lift).

Just for the record...


Top
Profile
 Post subject:
PostPosted: Tue Nov 05, 2002 1:46 pm 
yeh but oxygen and nitrogen are gaseous in the atmosphere and water hangs around as very dense collections of molecules. somewhat negating the density issues.


mm what weighs more, saturated humid air or your more 'dense' dry air.?


Top
Display posts from previous:  Sort by  
Post new topic Reply to topic
 [ 55 posts ]  Go to page Previous  1, 2, 3, 4, 5, 6

All times are UTC + 1 hour


Who is online

Users browsing this forum: Baidu [Spider], Bing [Bot], EastCC, JGTR, jyetley, omg, Yahoo [Bot] and 17 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group