Weeping Will Improve Your covering Job By James Goss     I have seen the time when I wanted to set down and cry after I covered some planes, but this article is not dealing with that type of weeping. This type of weeping deals with venting certain areas of your plane so it can breathe as the ambient temperature changes. The first area that comes to mind is the canopy. If your canopy is completely sealed, as when you glue it in place, you need to drill a tiny hole in an out of the way place so it can breathe. This will help prevent it from fogging in cold weather.      The next place to install weeping holes is in the tail section and ailerons if they are stick framed. Stick framing is popular because it is light in weight and resists warping as compared to solid sheets of balsa. When you are covering these sections and begin to install the film, you always cover the bottom side first and then the topside. As you start the topside you will notice as you place the iron on the covering it starts to balloon up because of the hot air expanding. This ballooning will never allow the covering to seat, as it should. When the heated air cools it will allow the covering to go back down, but it will not be as tight as it should. It will wrinkle in the future for sure and you will heat it up again but it will still balloon, this can go on for years.      The answer to this problem of ballooning is to drill tiny weep holes in all the framed sections connecting them together. Then drill one final hole in the trailing edge of the stabs or leading edge of the elevator, rudder, or ailerons. Keep this hole open as you cover, some modelers close it at the end of the job to hide it from sight, This is where they go wrong, do not cover this weep hole, leave it open because the sun will do the same thing as the heating iron. Leaving it open will allow your covering job to breathe as the temperature changes in the future. I have found weeping to really work wonders with my covering jobs.