Date: 05/29/2005 Views: 3171
Date: 07/19/2010 Views: 3164
Date: 12/31/1969 Views: 2757
Date: 08/23/2023 Views: 144276
Date: 05/23/2007 Views: 549662
One is required to use a "view-limiting device" in IFR training. These are home-made.