Re: Re[2]: Re: Multiple engines (was RE: Liquox)
Henry Spencer <[email protected]>
| Newsgroups | gmane.technology.erps |
|---|---|
| Message-ID | <[email protected]> |
On Sun, 13 Jun 2004, John Carmack wrote:
> I do think that most everyone drastically underestimates the increase in
> fabrication and operational work that a biprop will bring. The increased
> noise might make it impossible to test our vehicles at the shop...
It might be possible to reduce the noise, at some cost in test complexity,
by injecting water into the edge of the jet as it emerges. Not as good as
not having the problem in the first place, but better than a big increase
in test turnaround time.
Henry Spencer
[email protected]