Labadie climbs into the cabin, the air starter puffs and the propeller turns slowly over. Suddenly a sputtering roar bursts from the throats of the seven cylinders and the slowly rotating propeller melts into a silvery blur. A few minutes of warm-up then he taxies forward, lifts the tail and trundles forward with increasing speed. Faster and faster, then slowly it reluctantly spurns the ground. Higher and high it moves until it is a black dot against the clouds. For several minutes the plane soars aloft and then it planes down into the field and taxies up to us. Labadie climbs out grinning. He is pleased. The test hop is a success.