A programme of experimental research on five geosim propeller models has beencarried out in the ship model towing tank of the Shanghai Chiao-Tung University.
This towing role was to last no longer than ten minutes, and by relieving each other in this way, we could stay afloat for hours, perhaps even until daybreak.
The first and second were successfully darted, and we saw the whales staggeringly running off, fettered by the enormous sidelong resistance of the towing drugg.
But four hours later the fish was still swimming steadily out to sea, towing the skiff, and the old man was still braced solidly with the line across his back.