Note - The following info is based on fuselage parts that were shipped in January 1999, and on the drawings as received. Some of this information may not be valid with later fuselage parts, later revisions to the drawings or amendments to the Construction Manual.

F-801 Firewall - The battery tray has two possible mounting locations. You will want to mount it on the firewall in most cases (see the discussion in the Construction Manual). If you mount it on the firewall, it uses four of the holes in the firewall angle pieces. You should leave those holes open, and you don't need to dimple the firewall, or countersink the angle at those locations. I didn't figure this out until I was ready to mount the battery tray, so I had to drill out four rivets. See DWG 31.