Re: Falcon 1 Maiden Launch Delayed Until Dec



"Alex Terrell" <alexterrell@xxxxxxxxx> wrote in message
news:1130256695.757225.192980@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

> If ever someone wants to bring back engines from
> orbit (as opposed to 1st stage engines) I suppose it
> might be cheaper to ditch the nozzle. Without the
> nozzle, the SSMEs might be recoverable in some sort
> of a pod.

How many SSMEs would fit in the shuttle cargo bay?

The sensible approach to me seems to be to develop a small general
purpose reusable orbiter and use the significant spare down mass
capability to return the engines from larger 'expendable' vehicles.
Presumably orbital disassembly is similar in nature to orbital assembly.

Pete.


.



Relevant Pages

  • Re: Google Cindy Sheehan (was: Re: Peace Mom)
    ... >>> scrapped as part of a cost cutting move. ... An expanding nozzle or better ... > improve the overall performance of the engines. ... > abandoned in one of the many cost-cutting phases of the Shuttle ...
    (misc.writing)
  • Re: Google Cindy Sheehan (was: Re: Peace Mom)
    ... >>>engines are the highest performance, ... It has nothing whatsoever to do with 1970's technology or 2010 ... An expanding nozzle or better ... SSME could be used with a aerospike since there is no such supply of turbine ...
    (misc.writing)
  • Re: Google Cindy Sheehan (was: Re: Peace Mom)
    ... the space shuttle ... >>engines are the highest performance, ... It has nothing whatsoever to do with 1970's technology or 2010 ... An expanding nozzle or better ...
    (misc.writing)
  • Re: Google Cindy Sheehan (was: Re: Peace Mom)
    ... >> expanding nozzle. ... >> improve the overall performance of the engines. ... >> design, and today the SSME suffers a 1/4 drop in performance at low ... Salkeld's baseline vehicle from 1973 used a single type ...
    (misc.writing)
  • Re: Shuttle engine question
    ... > Are the main engines cooled by liquid hydrogen, or by a mixture of water ... hydrogen carries the removed heat back into the combustion chamber ... the nozzle has an 'ablative' lining that burns off, ... Smaller rocket engines that operate at somewhat lower temperatures ...
    (sci.space.shuttle)