Removed screws from bottom of fuselage bulkheads and slid pre-formed bottom skin into place.
Drilled bottom centerline holes at each bulkhead and clecoed skin in place. Used strap clamps and bar clamps to pull flanged bottom skin to shape. marked and slotted bulheads F8-F10 to accept bottom skin flange. Match drilled skin and bulkeads. Clecoed skin in place.