ok then, any way so can anyone tell me exactly what to do or post some designs that actually work??? because there's some designs on th web,but so far none of them have ever worked and I have to start building tommorrow!!!
Well, your first plane isn't going to be very complicated, so you don't really need a design. If it will help you, of course use one, but it should be pretty simple. Of course I may not be as experienced as some of the others here, but I was in the same place you are just last year, so this is what I reccommend:
1)Wing- Cut out two 40cm sticks out of 1/16 sq. for your leading and trailing edge. Pin the TE down to your building board first, parallel to the edge of your board, if possible. Next, pin down the LE parallel to that at the distance you need for your ribs. I used laser-cut ribs at first, which you can get from Indoor Model Supply. Don't trim them. So now make sure your LE and TE are parallel and squared up and at a good distance, and measure the distance between them. Cut two sticks 1/16 sq. this distance and glue them between your LE and TE at the tips. Next, glue your ribs on (make sure all the Leading Edges are facing the same way). Put two about 1-2mm apart in the middle. Evenly space the rest. Now cover the wing, we've already gone over that part, and induce about a .75 inch dihedral. Add posts, and possibly more supports, and you're done.
Horiz/Vert Stabilizer- I just built this flat, with a peice extending out the front center to rubber band down. Angle the vertical one (the rudder) to induce a turn.
Motor Stick/Tail Boom- I personally used 1/8x1/4 for my motor stick, but a lot of people use 1/8x3/8. The thicker one obviously is stronger. Use 1/8 sq. for the tail boom.
About measuring weights, maybe all my wood just happened to be perfect all year long and I'm about to get struck by lightning twice, but I didn't check, and all my planes came out under 7g. The problem with checking weight of individual parts is that beginners don't know what each part should weigh. Now, weight is very important, but your first plane really doesn't have to be 7.00000g. Maybe your second, but not the first
. It definitely should be under 7.5g, though.
Hope I could help!