Bill,
Landing Propellant mass fraction used for delta-V should be significantly
less for this prototype than for the Falcon 9 first stage. The Fly-Back
Burn and the Entry Burn are unnecessary, so it's only necessary to have
enough delta-V to slow down from Terminal Velocity to zero at the ground.
On Wed, May 22, 2019 at 8:51 AM William Claybaugh <wclaybaugh2@xxxxxxxxx>
wrote:
Not fully reusable; there will not be sufficient propellant to land.
Bill
On Wed, 22 May 2019 at 05:47, Craig Fink <webegood@xxxxxxxxx> wrote:
Looks like we are close to seeing the first Single Stage to Orbit launch.
As a bonus, this launch should be a fully reusable vehicle, capable of
Entry and Landing. Plus, this accomplishment will be just a step on the
path to his new launch vehicle, as the SSTO is SpaceX's research version of
Starship's second stage.
https://youtu.be/6IydYEBrk0E?t=413
CloudLicker on Youtube seems to do a good job aggregating SpaceX News so
you don't have to.
Following SpaceX today is what following NASA was like in the 1960s. All
Doing, less Talk. Exciting times ahead.
--
Craig Fink
WeBeGood@xxxxxxxxx