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Title: problem wid wings and body Post by: yashb on March 23, 2011, 09:35:15 AM i am making beginner plane and have not understood how to make the wing because every type of plane has a different type wing and how to make the body according to the type of the plane :help: :help: :help: :help: :help: :help: :help: :help: :help: :help: :help:
i want :help: yashb Title: Re: problem wid wings and body Post by: corsair on March 27, 2011, 02:44:10 AM This can be better answered with more information from your side. Like are you building your plane from a plan or not, because wings are mainly designed based on the purpose it should serve. For example most of the trainer planes have a dihedral. These increase the stability of the plane.
Title: Re: problem wid wings and body Post by: shivaminbit on December 22, 2012, 12:30:10 PM hello, myself shivam, i m trying to build a rc plane from coroplast sheet.... my wing is dihedral but i dont understand how far should i place it from motor and what is its center of gravity... my fuselage is 35.5 inches long includind the shaft of my motor.... please help me ..
Title: Re: problem wid wings and body Post by: sanjayrai55 on December 22, 2012, 12:37:16 PM Read spadtothebone.net for your answers, and before starting a corrobuild
Title: Re: problem wid wings and body Post by: shivaminbit on December 22, 2012, 12:54:10 PM i have gone through it still m unable to complete it....
Title: Re: problem wid wings and body Post by: sanjayrai55 on December 22, 2012, 12:58:08 PM If you have already made your wing & fuse, put the battery in, and fix the wing temporarily with a rubber band, then move the battery & wing till your CG is correct (1/3rd the wing chord from the LE)
Title: Re: problem wid wings and body Post by: shivaminbit on December 22, 2012, 01:02:33 PM does it make any difference if my LE is too close to motor or it is far ...i mean will the CG remain the same.. while entering the datas on the site below,
http://adamone.rchomepage.com/cg_calc.htm i dont know where should i place my wings... wing size = 36.375in * 10 in Title: Re: problem wid wings and body Post by: shivaminbit on December 22, 2012, 01:03:52 PM by the way thanxx for helping me...
Title: Re: problem wid wings and body Post by: bokilap on December 22, 2012, 07:48:16 PM In General,
The C.G is at 30-33% from leading edge of the wing, thats where people usually put a spar of the wing. Put all the electronics into the fuselage. Fix the wing temperorily and try to check its balance using middle finger of each hand underneath the wing, on each side of wing, on the CG line. If the plane tilts forward (towards nose), it is nose heavy. In this case move the wing more towards the nose till you achieve a perfect balance using the above method. If the plane tilts backwards (towards the tail), it is tail heavy.In this case move the wing more towards the tail till you achieve a perfect balance using the above method. Fix the dowels to hold the wing at this balanced position. You may achieve balance by shifting the electronics too. hope this helps...some picture of your plane or plan may help the people trying to explain. Title: Re: problem wid wings and body Post by: shivaminbit on December 23, 2012, 10:24:38 AM my plane is a stick plane as i m beginner .... i have used coro sheets to model it .. and a single power motor.. will post pics soon ...
thnxx Title: Re: problem wid wings and body Post by: naatumach on January 11, 2013, 07:59:53 PM Hi
Since, you have a stick this is what i suggest. 1. Assemble the whole aircraft except the wings. 2. Balance the fuse by holding it with two fingers and see where it balances. 3. Now mark that spot. 4. On your wing from your leading edge, make a line along the leading edge at 1/3 the chord. 5. Attach the wing to the fuse whilst coinciding the point on the fuse and the line on the wing. Posting the pic should really help. |