Manly Wade Wellman,
Half Around Pluto
“ The lightened sled attained and held a greater speed than on any previous day."I'll make it," he said aloud, with nobody else to listen on all Pluto. "I'll make it!"Faster he urged the engine's rhythm, and faster. He clocked its speed by the indicators on the housing. A hundred and fifty miles an hour. A hundred and sixty; not enough. Whipping the boom line tight around his waist to hold his course steady, he sighted between the upcurve of the runner forward. There was level, smooth-frozen country, mile upon mile. He speeded up to one hundred and seventy-five miles an hour. ”
