Space Cadet
“It started with an orbital speed of better than four miles per second, the speed of the Aes Triplex in her tight circular orbit around the equator of Venus. The lieutenant’s purpose was to kill this speed exactly over his destination, then balance the jeep down on its tail. A jet landing was necessary, as the jeep had no wings.
He needed to do this precisely, with the least use of fuel. He was helped somewhat by riding “with the current” from west to east; the 940-mile-per-hour rotational s...peed of Venus at her equator was profit rather than loss. However, exact placement was another matter. A departure time was selected so that the entire descending curve would be on the day side of the planet in order to use the Sun as a reckoning point for placement in longitude; placement in latitude would have to depend on dead reckoning by careful choice of course.
The Sun is the only possible celestial body to use in air navigation at Venus, and even Sol is lost to the naked eye as soon as one is inside the planet-wide blanket of cloud.MoreLess
He needed to do this precisely, with the least use of fuel. He was helped somewhat by riding “with the current” from west to east; the 940-mile-per-hour rotational s...peed of Venus at her equator was profit rather than loss. However, exact placement was another matter. A departure time was selected so that the entire descending curve would be on the day side of the planet in order to use the Sun as a reckoning point for placement in longitude; placement in latitude would have to depend on dead reckoning by careful choice of course.
The Sun is the only possible celestial body to use in air navigation at Venus, and even Sol is lost to the naked eye as soon as one is inside the planet-wide blanket of cloud.MoreLess
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