[ExI] specific thrust

Eugen Leitl eugen at leitl.org
Sat Dec 11 09:10:15 UTC 2010

On Fri, Dec 10, 2010 at 10:57:35PM -0800, Adrian Tymes wrote:

> IIRC, the main problem was a heavy power source - and there's been much
> research since then into lighter weight power sources.  So I wonder if it would

About the lightest power source is an almost unshielded reactor
running at close to self-destruction temperature. That is a nasty,
nasty thing.

> be possible, using today's technology, to build an ion engine that could
> deliver 1G+ of thrust - again, including something to power said ion engine for
> about 10 minutes.

You realize that ion engines don't work much below 100 km? 

Eugen* Leitl <a href="http://leitl.org">leitl</a> http://leitl.org
ICBM: 48.07100, 11.36820 http://www.ativel.com http://postbiota.org
8B29F6BE: 099D 78BA 2FD3 B014 B08A  7779 75B0 2443 8B29 F6BE

More information about the extropy-chat mailing list