A kerosene-fueled X-33 as a single stage to orbit vehicle.
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From: Sylvia Else on 1 Nov 2009 19:37 Sam Wormley wrote: > Single Stage to Orbit really limits payload "weight". Why does that matter? The point of an SSTO is to get down the cost to orbit per payload kg. An SSTO is likely to mass more than a disposable multi-stage for a given payload, but that is not in itself a source of concern. Sylvia.
From: Sam Wormley on 1 Nov 2009 19:46 Sylvia Else wrote: > Sam Wormley wrote: >> Single Stage to Orbit really limits payload "weight". > > Why does that matter? The point of an SSTO is to get down the cost to > orbit per payload kg. An SSTO is likely to mass more than a disposable > multi-stage for a given payload, but that is not in itself a source of > concern. > > Sylvia. http://en.wikipedia.org/wiki/Single-stage-to-orbit#SSTO_Cons
From: Sylvia Else on 1 Nov 2009 19:47 Sam Wormley wrote: > Sylvia Else wrote: >> Sam Wormley wrote: >>> Single Stage to Orbit really limits payload "weight". >> >> Why does that matter? The point of an SSTO is to get down the cost to >> orbit per payload kg. An SSTO is likely to mass more than a disposable >> multi-stage for a given payload, but that is not in itself a source of >> concern. >> >> Sylvia. > > http://en.wikipedia.org/wiki/Single-stage-to-orbit#SSTO_Cons > And...? Sylvia.
From: Sam Wormley on 1 Nov 2009 19:57 Sylvia Else wrote: > Sam Wormley wrote: >> Sylvia Else wrote: >>> Sam Wormley wrote: >>>> Single Stage to Orbit really limits payload "weight". >>> >>> Why does that matter? The point of an SSTO is to get down the cost to >>> orbit per payload kg. An SSTO is likely to mass more than a >>> disposable multi-stage for a given payload, but that is not in itself >>> a source of concern. >>> >>> Sylvia. >> >> http://en.wikipedia.org/wiki/Single-stage-to-orbit#SSTO_Cons >> > > And...? > > Sylvia. If it can be done, great! No Earth-launched SSTO launch vehicles have ever been constructed.
From: Sylvia Else on 1 Nov 2009 19:59
Sam Wormley wrote: > Sylvia Else wrote: >> Sam Wormley wrote: >>> Sylvia Else wrote: >>>> Sam Wormley wrote: >>>>> Single Stage to Orbit really limits payload "weight". >>>> >>>> Why does that matter? The point of an SSTO is to get down the cost >>>> to orbit per payload kg. An SSTO is likely to mass more than a >>>> disposable multi-stage for a given payload, but that is not in >>>> itself a source of concern. >>>> >>>> Sylvia. >>> >>> http://en.wikipedia.org/wiki/Single-stage-to-orbit#SSTO_Cons >>> >> >> And...? >> >> Sylvia. > > If it can be done, great! No Earth-launched SSTO launch vehicles have > ever been constructed. They never will be if we use that as an argument against them. Sylvia. |