Above left is Gifford Gillingham (Giff) welding the tube to the upper spool. Giff had
previovsly welded up the tray and spools. This is a false firewall, 3/4" plywood bolted
to the firewall with a stainless sheet between the firewalls.Upper right shows the
markings on the firewall. Vertically is the centerline, Two horizontal lines mark the
shelf. The third line marks the top of the tray. The airplane was leveled, then the tray
was leveled and squared to the firewall and shimed and clamped in the proper
position. The tray was checked often to make sure it was square to the firewall and
level. While welding we had a bucket of water, a wet towel, a water hose and a fire
extinguisher handy.

After the upper tubes from the spools to the tray were welded we started cutting the
tubes for the lower spools and due to the shallow angle from the spools to the tray we
decided to make the lower spools longer to have better clearance for the bolts to pass
through the spools. Here Giff is welding the longer spools.

When we had six tubes welded to the tray we removed the motor mount from the
firewall and used steel angles to make a pattern or brace so that the rest of the
welding could be done off the firewall without worry about warpage.