Date: 12/31/1969 Views: 5933
Date: 07/22/2004 Views: 3755
Date: 08/31/2010 Views: 8073
Date: 08/23/2023 Views: 784660
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!