DLG theory , how to set your CG
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- Опубліковано 8 січ 2019
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hola, gracias por tus consejos para este novato que recien comienza, saludos. chile
Perfect video for beginners in dlg. Quick, easy to understand, very usefull. Thank you Pierre
Awesome video Pierre! Very good information and very well spoken. Nice job!
Love those explanatory videos, thanks a lot! Very helpful!
Pierre, I am enjoying your trophy-top tutorials and I am looking forward to more. In an earlier tutorial you recommended checking the CG by cycling the elevator up-and-down and watching to see if the nose of the DLG stays still and the tail rotates up-and-down (nose heavy) or the tail of the DLG stays still and nose rotates up-and-down (tail heavy). I find that procedure to be very accurate and wonder if you still recommend it. Thanks, Robert.
hey robert , yes I still recommend it , but I find this technique may be more easy to tell if the glider is setted correctly or not .
Great info! I'm flying an old pig of a competition glider. Wing is 'disser' construction and boom is carbon with kevlar nose. It's many years old and has several repairs from completely snapped boom. About 10.3 oz (292 g). I have suspected the glider may be tail heavy but haven't had a good calm day to check. It can cruise quite flat, but aileron/roll response seems a bit slow without rudder input. However, it seems I do not need much elevator input at all to get a good mostly flat turn; just a bit of bank to set the inside wing fairly flat then use and mostly rudder. I can also get a good sharp turn without losing much altitude by nosing down slightly and using full rudder, hard bank, and a quick hard pull of elevator.
Basically, I can get the glider to fly how I need it to but it requires a lot of attention. Do you think this may be due to setup or because it is an older style glider? It seems to have a bit more dihedral than newer DLG designs as well. I hear a lot about new gliders being 'very stable' and 'easy to fly' so I'm not sure if this is all just relative and they also require a lot of input.
the best way to know is to test with a bit of lead in the nose .
yes most new gliders are easy to set and fly compared to some older design
@@pierremeunier Will do. Also, even with large snap flap setting, the glider 'wags' a bit when I use aileron only. Seems like tail moves out more than nose.
Great video, I’m learning lots. Question for you. Why do people have sets of removable weights for their glider? Are they placed at the centre of gravity? Why would you want to make the glider heavier? Thanks!
Hello , this is called ballast .
We try To get our glider as light as possible for calm weather , and To be able To use the same glider in turbulent or windy condition we put ballast in it . Without ballast the glider would be difficult To fly and have not enough energy To fight the wind .
And yes it s a Center of gravity
How do you set the initial CG? Do you add weight?
@@bigtreeproductions I set inital cg as the builder recommand it . if needed yes I add weight in the nose