SHARK II
Here's  a custom vehicle I envisioned to be more like the SHARC. Able to fly, float & submerge on water - plus hover like a helicopter with VTOL  capability   .  The  base vehicle is from the Starship Troopers line.  I removed the wings and repainted the body sky blue (much like Starduster's  shirt,  the  original  was  light  greenish  blue). The cockpit  originally  holds  bigger  figures so I used a Cobra Trouble Bubble  seat  and immediate side parts including the belt like rubber item  for  the  Joes  to fit - it acts as an ejector seat. Instead of this  seat,  some figures can also fit the cockpit using a Sky Patrol parachute  pack  on  their  backs - nice in case one is shotdown! The skids  retract and is battery operated to make cool jet sounds with a back  button.  The featured figure is made with '93 Ace head with '92 Ace body as an updated Deep Six - both of 'em are redheads anyway. 
The Bivouac: 1998-2002
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