I sense something I could learn from!
Why do you say 5% to be the economical msss ratio? What drives the numbers?
My guess: engine cost is much higher than tankage, and you drop them with
the tanks?
On Sat, May 25, 2019, 12:08 AM William Claybaugh <wclaybaugh2@xxxxxxxxx>
wrote:
Craig:
Are you being a jerk on purpose or have you just not followed this
conversation?
Second stage of the Saturn 5 was also capable of expendable SSTO if
re-engined with SSME’s. Expendable SSTO has be technically feasible since
the late 1950’s; it simply hasn’t been economic. Nor will it be until 5%
payload fractions are achievable.
Bill
On Fri, 24 May 2019 at 19:01, Craig Fink <webegood@xxxxxxxxx> wrote:
On Wed, May 22, 2019 at 7:34 PM Henry Spencer <hspencer@xxxxxxxxxxxxx>
wrote:
On Wed, 22 May 2019, anthony@xxxxxxxxxxx wrote:Hi Henry,
Wasn’t the former Titan capable of SSTO, assuming a practical “zero”
payload?
The Titan II first stage could even carry a token payload into orbit,
maybe 1t or so if you did things just right
Titan was a missile, how many 1t weapons did it take to orbit?
Or, Ascents did it perform SSTO?
--
Craig Fink
WeBeGood@xxxxxxxxx
