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I think its rather stupid to use RCC’s when Titanium based shielding would provide a more stronger structure that would be more resistant to damage during blastoffs and landings. Titanium can resist up to 3,200 F temps….while the ceramic RCC’s can break off when hitting close to the 3000 F mark that usual reentry temps are at their highest. Also since you have orbiting junk that is moving at perhaps 100 mph or more i would think you would want the additional armored protection. Titanium is 45% lighter than steel so I doubt weight would be an issue considering most the wieght is usually in the cargo being carried. When will Nasa Wake up to Real New Technology and stop using outdated crap that is a waste of people’s tax money?
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Titanium is a metal, and as such, transmits heat easily, and cannot act as a heat shield. Carbon-based Heat shields are thermo-insulators, and *shield* the interior from the externally generated heat.
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No offense, but I bet NASA has done a lot more research into that question than you have, and I bet they have some damn good reasons.
If you wanna look see some REALLY cool heat shield potential technologies, look up aerogels.
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>>I think its rather stupid to use RCC’s when Titanium based shielding would provide a more stronger structure that would be more resistant to damage during blastoffs and landings.<<
I think it’s rather arrogant to assume you know better than a team of experts who make a living from this.
>>Titanium can resist up to 3,200 F temps<<
No, titanium melts at about 3,100 F. In common with most metals, it softens well below that temperature. How will having bits of your shuttle softening and being bent out of shape be helpful?
>>….while the ceramic RCC’s can break off when hitting close to the 3000 F mark that usual reentry temps are at their highest.<<
The RCCs are not ceramic. RCC stands for reinforced carbon carbon. The RCC panels are used on the leading edge of the wing, while the rest of the shuttle is covered in ceramic foam tiles. You’ll find your criticism of the system taken a lot more seriously if you actually get the terminology right and demonstrate an understanding of the system that is currently in use.
>>Titanium is 45% lighter than steel<<
But is still heavier than the stuff currently being used.
>>so I doubt weight would be an issue considering most the wieght is usually in the cargo being carried.<<
Weight is always an issue in space flight. The less weight the better, always.
>>When will Nasa Wake up to Real New Technology and stop using outdated crap that is a waste of people’s tax money?<<
The system used at the moment offers the best protection. Only ONE shuttle has been lost to a failure of the heat shield material, out of over 100 flights. It’s the foam on the external tank that is the problem, not the thermal protection system.
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Titanium is a metal, and as such, transmits heat easily, and cannot act as a heat shield. Carbon-based Heat shields are thermo-insulators, and *shield* the interior from the externally generated heat.
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