IIRC, the Soyuz spacecraft main engine has a primary thrust chamber an nozzle,
and a backup thrust chamber feeding two nozzles, one on either side of the
primary. Both are fed by a single, non-redundant, peroxide-driven turbopump.
At least, that's what I remember from reading Aviation Week back in the 1970s.
I don't remember what I had for breakfast (or, come to think of it, IF I had
breakfast)...
On August 26, 2021 at 1:49 PM, "Ian M. Garcia" <ian@xxxxxxxxxxxxx> wrote:
Henry,
Do you mean one engine chamber with multiple nozzles? I've never seen that in a
liquid, so I'd be very curious to see it.
ian
From: arocket-bounce@xxxxxxxxxxxxx <arocket-bounce@xxxxxxxxxxxxx> on behalf of Henry
Spencer <hspencer@xxxxxxxxxxxxx>
Sent: Thursday, August 26, 2021 1:36 PM
To: Arocket List <arocket@xxxxxxxxxxxxx>
Subject: [AR] Re: Multiple small engine vs one large engine. Was Re: Re: SpaceX
monster
On Thu, 26 Aug 2021, roxanna Mason wrote:
Is there any regime in which multiple small nozzles attached to a
single large combustion chamber make sense?
To my memory no such beast exists in a liquid, only solid rockets have
had this configuration like the 5" HIVAR air to ground rockets of the
Korean war.