View Single Post
  #8  
Old April 8th 09, 09:26 PM posted to sci.space.history,sci.space.policy,rec.aviation.military,sci.military.naval
Alan Erskine[_2_]
external usenet poster
 
Posts: 1,316
Default Nasa chooses Orion heat shield

"Bluuuue Rajah" Bluuuuue@Rajah. wrote in message
. 17.102...
"Alan Erskine" wrote in
Three questions:

1 Will the Orion heat shield be in two thicknesses; one for LEO and
one for Lunar missions?

2 Is there a mass advantage to using an ablator over re-useable
TPS?


I think so.


You _think_ so? I didn't ask for opinion.


3 Is there a cost advantage to ablator over re-useable TPS?


Shuttle tile must be a lot more expensive than ablator.


Must be?