It looks like you're off to a good start. I have taped a bunch of sheets together lots of times to draw plans on. When I was your age computers were not available to kids. I wish I had learned to use a CAD program when I was your age. It would have made making airplane plans a lot easier. Since you obviously have computer access and internet access I would encourage you to download one of the free CAD programs to use in designing your planes. You can learn some valuable computer skills while having fun with airplanes. There are also low cost CAD programs available at places that sell software. Tell your parents it will be educational and they will probably buy it for you.

Here are some pictures of Hanno Prettner's Calypso. He won the pattern world championship with it. Early 1980's I think.

http://www.djurshobby.dk/Calypso.htm
http://www.electronic-engineering.ch...o/calypso.html