Originally Posted by skidder!uk
Have just realised i printed letter plans A4 so mine's come out at 16 inches. I think it's pretty heavy at 7oz AUW but my motor is heavy and i am pretty sloppy with the glue gun!
Build a 20" plus version if you are using a heavy motor...you will love the results!
I know you most likely already know this but...
To get a 20" version just get an 11" sting and tie it to a pin. Stick the pin in the foam (about in the middle of the sheet). Tie the other end of the string to a pen leaving about 10" between the pin and the pen. Now just draw the circle...you have a 20" NB....
I did this to get my 23.5" version.....very floaty or very fast!