A square topsail is a square-rigged sail, carried above the foresail only, on gaff schooners. At sea, it used to be that the ensign was flown from the mizzen gaff. Novel rigging technology now permitted the Bermuda rig to replace the gaff rig. To improve maneuverability, the mainmast carries a small (gaff rigged) fore-and-aft sail. The only wooden spar was the gaff of the small spanker. In Fairhaven, Massachusetts, he rebuilt the gaff rigged sloop oyster boat named "Spray". In the absence of a gaff the ensign may be flown from the yardarm. One of the easiest types to sail, but performs poorly to windward without gaff topsails. Fleeting involved fish being ferried from fishing smacks to gaff cutters by little wooden ferry-boats. Mitchell is dropped onto the boat by helicopter and kills Benton with a gaff hook. Despite being fought gallantly, "Avon" was crippled by loss of a gaff. Edward James Olmos and Dave Bautista respectively reprise their roles as Gaff and Sapper Morton. The GAFF force field is used only small molecules. Ambfor admits protein force field Amber and GAFF (General Amber Force Field).