We take this Tin Goose Rebuild to the testbench. Equiped with the 1700kv brushless motor a 8x4.5 folding prop and the 2cell 7.4v 800mAh lipo battery. This setup produces 7200rpm. This will result in 290 grams of thrust. Total weight is only 350 grams. This is a great result, but you have to keep in mind that the maximum flying speed with 8x4.5@7200 will be slower than 4.3x3@12000 rpm.