Fuel tank mock up


Initial measurements showed a 70mm x 80mm 320mm fuel tank would fit right over the CG. I made one and discovered it would not through the cockpit hatch so made the mock up 70mm x 70mm x 320mm and it worked OK


Test fit through cockpit hatch


Tank fit right over CG which is basically the front wing spar


View from aft of front fuse


Approximate location beside fuse. Tank is centered on front wing tube. Initial estimate was for approximately 1.4L or about 46 oz which is plenty for the X-45.