Gravity Assist

Using the gravity and orbital speed of a celestial body to change speed and course of a spacecraft. (Read the full article)

"Flandro gives the history of the gravity assist concept in the paper AIAA-2001-0176. He partially credits Cummings, but also notes earlier works. From the abstract: "Of more interest in the context of this paper is the realization that such perturbations might be applied in spaceflight. This important notion can be traced to the science fiction writers of the 1930's who recognized that if a comet orbit could be modified, why not that of a space vehicle?""
(Geoffrey A. Landis 9/28/2005 11:59:03 AM )
"The abstract further states "All of the basic mechanics were understood by D'Alembert as early as 1773; Laplace, Leverrier, and Tisserand employed them in understanding the perturbation of the motion of comets passing close to a planet. Of more interest in the context of this paper is the realization that such perturbations might be applied in spaceflight." I'm still looking for better citations, also I couldn't get access to this paper."
(Bill Christensen 9/14/2014 1:17:55 PM )

More info on Gravity Assist

Leave a comment:

Tediously, spammers have returned. So, send me your comments to bill at the site name (be sure to mention the page) and I'll post them. Thanks!




Current News Articles

Japan's LignoSat Space Wood Satellite And Dan Simmons' Treeship
'The Consul remembered his first glimpse of the kilometer-long treeship...'

Skyline Robotics Instantiates Heinlein's 'Window Willie' Skyscraper Robot
'Do you know what window washing used to cost by the hour?'

Drone Bombings In Moscow Foreseen 100 Years Ago
'Once the target is confirmed, it uses an IR laser to send a coded signal back to the parent, clearing it to attack.'

I Didn't Know You Can Already Buy Flesh Putty
'I filled your bullet hole with flesh putty and the lattice.'

'A Sign in Space' Gives Practice In Decoding ET Messages
'... it will be easy to form an alphabet which shall enable us to converse with the inhabitants of the moon.'

Melting Permafrost Endangers Infrastructure
'From the tower's huge octagonal base radiate wide silvery strips...'

EELS Exobiology Extant Life Surveyor For Enceladus
'It was about five feet long... a black bullet head and red camera eyes.'

Lazy Lawyer's Trust In ChatGPT Misplaced
'The Law Society has strict rules on the use of pseudo-intelligent software...'

Paradromics Implant FDA 'Breakthrough Device'
'I used my implant to tell MILLIE what we wanted...'

Mice, At Least, Can Sober Up Quickly
'Then draw some aldodote-vitamin pills from the medic.'

Is It Time For Lunar Farside Telescopes?
'Mount Ambarzumian Observatory, on Farside.'

Spaceflight Vertigo Solved By NASA Releasing The Kraken
"I threw up in my helmet."

Home | Glossary | Invention Timeline | Category | New | Contact Us | FAQ | Advertise | - where science meets fiction™

Copyright© Technovelgy LLC; all rights reserved.