Date: 12/31/1969 Views: 7896
Date: 07/09/2006 Views: 5987
Date: 12/06/2008 Views: 5852
Date: 08/23/2023 Views: 818880
Vent open. These things are VERY effective at directing a significant volume of cooling air at the occupants. I have flown in Rich Schultz's tri and he has them. They WORK!