Then, what is "cool tin" for, if not to cause turbulance, slow down the air, so it can pick up the heat???
See N64KR at http://KRBuilder.org - Then click on the pics See you at the 2007 - KR Gathering There is a time for building and a time for FLYING and the time for Flying has begun. Daniel R. Heath - Lexington, SC -------Original Message------- Rough surfaces also cause turbulence in the cooling air flow which is not good.
