At exactly 4:45 he gave the signal to release the catapult. Instantly the machine roared down the track and leaped 60 feet straight up into the air, only to stop and with a grinding, whirring sound, hang suspended momentarily, nose up, then, its wings crumbling, flipped backward and plunged into the river no more than 20 feet from the houseboat. Manly, who had disappeared into the river, found himself trapped underwater, his jacket snared by part of the wreckage. Tearing free, he fought his way up through tangled wires only to hit a sheet of ice before at last breaking through to the surface.
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