>> SpaceX making more than 1,000 changes to next Starship rocket
>>formatting link
>>
>> Many changes...
>> More thrust:
>> "
>> We made a sort of a late-breaking change that's really quite significant to the way that stage separation works,
>> which is to use what's called hot staging, where we light the engines of the upper stage, or ship,
>> while the first stage, or booster stage, engines are still on, Musk said. >> "
>>
>>
>> Interesting I find:
>> "Musk outlined several other upgrades to debut on the next Starship test flight.
>> Those include electric thrust vector controls to replace the hydraulic steering system used on the April 20 launch,
>> along with stronger shielding around each of the boosters 33 Raptor engines to protect them from explosions of nearby engines,
>> a measure intended to reduce the chance of cascading failures. >
>I'm pretty sure they can't build a launch pad from concrete alone. It has to be shielded by way of reflecting concentrated heat away from it. That means quite a bit of additional heat on the engines for the very brief period it takes to get separation in distance.
>
>Idiots at SpaceX knew this before the first failed launch but didn't want to hear anything with word "upgrade" in it.
"Go fast and break things." That gets stuff done.