Comment by larusso
10 hours ago
But for the shuttle each title was kinda unique and had a specific spot. If they managed to find a shape where you don’t have to mark each tile but can just pull them from a box for replacement is a huge win. Maybe even have some spares and allow them to be replaced during an EVA. This was all not really feasible with the Spaceshuttle.
The other aspect is the stainless steel hull that can take more punishment, mechanical mounting of tiles rather than glue (though iirc some places still ended up having to use glue) and more developed automation tech making it realistic to get a machine to do the installation and inspection work.
Also, the ability to fly without crew and the willingness to have highly visible failures means they can actually exercise the heat shield to understand what works.
Indeed! On Starship v1, that's what they started out doing: each tile was the same, and there was awkward placement and notable gaps, especially along the fins. I think they were hoping that this would be good enough, but that dream was dashed. I just hope that it can be completely standardized to provide the benefits you mentioned. I suppose it really helps that they'll be building thousands of these things instead of single digits!
> awkward placement and notable gaps
The places that are awkward to tile are the spots that need tile the most.