THE MODEL G. BALLOON CAR
Warning.. this uses a lot of material.. failed as a balloon car.. however it was a great way to test your skill in solid works..you might try scaling this down.. to make it functional.. I thought it turned out well.. use #4 nails as wheel pins also you might try making back side of wheel flat.. we used a sparse density. which caused leaks in in jet tube.. i tried painting to seal it .. no help.. came in weighing 10.1 oz.