rocket-ship n.

What if…large passenger-carrying rocket-ships could be launched into the void beyond the zone of the earth’s downward pull?

No means of conveyance other than the belts called jumpers, almost constantly worn by everybody, and an occasional rocket ship, used only for longer journeys.

Could he dare slide down that glass-smooth slipway when any second a rocketship in all the fury and power of irresistible motion could come smashing up toward the sky?

None of them had ever built a rocketship, had ever seen one in action even. It was centuries obsolete in Galactic civilization. But gravity drives were out of the question.

There was a warning-bell in the shack, and when a rocketship from Lunar City got above the horizon and could send a tight beam, the gong clanged loudly.

The rocketship was travelling westwards, drawing a thin, grey line of exhaust across the rich blue of the evening sky.

The rocket ship had been sent from the dastardly Planet X.