Date: 12/31/1969 Views: 5509
Date: 11/29/1999 Views: 6163
Date: 09/27/2009 Views: 5407
Date: 08/23/2023 Views: 730093
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!