Main said..
Just found this post on depowering a kite when launching which seems to completely contradict the current post running which recommends to have the trim strap completely out when launching.
Seems to be quite a few schools of thought on this one....
It's all very confusing in deed and it becomes a case where you can't see the forest for the trees. To see clearly you have to take a step back and look at the big picture. Every launching scenario is different and one can't justify forcing all to adopt one specific universal method that would apply to any situation.
As far as newbies are concerned, the most important aspect (which is often overlooked) is a proper assessment of the wind conditions. Anyone planning on launching a kite must have a pretty good idea how strong the wind is blowing and make sure it's not too gusty, not bad weather, no turbulence in the area, etc. The kiter must also know what wind range his kite can be used in based on his/her body weight. As an example: if the newbie kiter is 75-80KG and only has a 9m kite, the minimum wind speed to get out comfortably would be around 15-18 knots and the maximum wind around 25 knots.
Knowing that you are around the low end of your kite's wind range, there is not much benefit from pulling in the trim strap. Pulling the trim strap in at the low end of your wind range will make launching very difficult and most likely enforce bad habits such as pulling the bar in all the way during launch or choosing a launching angle too far upwind, thus overpowering your launch and making it difficult/dangerous for the person holding your kite.
Knowing you are around the higher end of your kite's wind range, or hesitating to go out thinking you might be overpowered, fully trimming the kite prior to launch is obviously a great idea to play it safe and will reduce the risk of getting dragged during launch.
Knowing you are above the higher end of your kite's wind range, pulling the trim strap in all the way wouldn't make much difference and any single kite quiver newbie should simply give that session a miss (
this is when most accidents happen).
Knowing you are around mid-range of your kite's wind range, pulling the trim strap all the way in could make it difficult to control the kite and could force you to pull the bar far down and prompt you to oversteer the kite which could then send the kite into the power zone, especially if you have a long/very long trim strap system. Not trimming the kite at all or pulling the trim up to half way in would be better alternatives, depending on the conditions.
Note: Many newbies who choose to buy second hand gear don't know how to recognize their lines are out of tune and don't know how to fix it and end up flying kites with front lines longer than the back lines which causes the kite to fly over-sheeted and back-stall. In this case, using the trim strap would be the only temporary corrective measure to ensure a safe launch.