Author Topic: SNC Dream Chaser DISCUSSION Thread  (Read 433710 times)

Online envy887

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Re: SNC Dream Chaser DISCUSSION Thread
« Reply #1800 on: 04/20/2017 12:56 AM »
Please remember that DreamChaser is expected to use a 552 Atlas V. It should be able to do around 21 tonnes to LEO. Which is around what SpaceX claims Falcon 9 to do in expendable mode (22 tonnes). So it would either need a fully expendable Falcon 9 or a RTLS Falcon Heavy. An Atlas V 552 should cost quite a penny, probably in the 110~120M range. How much would SpaceX charge for a Falcon Heavy? Which would be the expected reliability and schedule margins? I wouldn't count Atlas V nor Vulcan out, yet.

Gunter says DreamChaser is expected to launch on Atlas V 412
http://space.skyrocket.de/img_lau/atlas-5-412__dream-chaser__1.jpg

Is the dual-engined Centaur required for redundancy? It certainly doesn't seem to be for payload capability.

Offline LastStarFighter

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Re: SNC Dream Chaser DISCUSSION Thread
« Reply #1801 on: 04/20/2017 01:27 AM »
Please remember that DreamChaser is expected to use a 552 Atlas V. It should be able to do around 21 tonnes to LEO. Which is around what SpaceX claims Falcon 9 to do in expendable mode (22 tonnes). So it would either need a fully expendable Falcon 9 or a RTLS Falcon Heavy. An Atlas V 552 should cost quite a penny, probably in the 110~120M range. How much would SpaceX charge for a Falcon Heavy? Which would be the expected reliability and schedule margins? I wouldn't count Atlas V nor Vulcan out, yet.

Gunter says DreamChaser is expected to launch on Atlas V 412
http://space.skyrocket.de/img_lau/atlas-5-412__dream-chaser__1.jpg

Is the dual-engined Centaur required for redundancy? It certainly doesn't seem to be for payload capability.

552 is for Dream Chaser cargo version. 412 is for Dream Chaser crew version. The lack of crew, cargo container and payload fairing allow for the increase in solids to maximize payload. Dual engine is just for performance increase by minimizing gravity loses.

Offline yg1968

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Re: SNC Dream Chaser DISCUSSION Thread
« Reply #1802 on: 04/23/2017 05:50 PM »
At 14m30s, Vern Thorp from ULA said that they were making modifications, this year, to the White Room for other customers in the future.

It's not clear what he meant by other customers. Presumably, he meant modifications for space tourist flights but he may have meant for other companies such as SNC:



See above.
« Last Edit: 04/23/2017 06:23 PM by yg1968 »

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