Quote from: yg1968 on 01/10/2014 01:19 pmQuote from: gosnold on 01/10/2014 08:51 amIsn't ITAR going to be a problem for Europeans? For instance if they want to refurbish the craft themselves between launches?I am not an expert on ITAR but I don't think that SNC would sell a DC to ESA. They would rent it and SNC (or one of their U.S. subcontractors) would operate it. I believe that there are efforts to remove spacecrafts from ITAR. But that has yet to be done.Well it would seem to go against the ESA "buy european" policy then. I was thinking DLR might buy a DC on its own funds (no political problems with ESA in this case) and then ESA could operate it with european industries doing the maintenance/refurbishment. But it is too early to tell anyway.
Quote from: gosnold on 01/10/2014 08:51 amIsn't ITAR going to be a problem for Europeans? For instance if they want to refurbish the craft themselves between launches?I am not an expert on ITAR but I don't think that SNC would sell a DC to ESA. They would rent it and SNC (or one of their U.S. subcontractors) would operate it. I believe that there are efforts to remove spacecrafts from ITAR. But that has yet to be done.
Isn't ITAR going to be a problem for Europeans? For instance if they want to refurbish the craft themselves between launches?
Dreamchaser can be launched to GTO by Ariane 5 wonder what missions it could do in GEO rendezvous with a Bigalow station maby?
Quote from: floss on 01/11/2014 11:45 pmDreamchaser can be launched to GTO by Ariane 5 wonder what missions it could do in GEO rendezvous with a Bigalow station maby?Ariane 5 could potentially launch DC into a GTO - But DC would not have enough propellant to circularize the orbit, and would not be able to de-orbit from GEO either.
Quote from: Lars_J on 01/11/2014 11:49 pmQuote from: floss on 01/11/2014 11:45 pmDreamchaser can be launched to GTO by Ariane 5 wonder what missions it could do in GEO rendezvous with a Bigalow station maby?Ariane 5 could potentially launch DC into a GTO - But DC would not have enough propellant to circularize the orbit, and would not be able to de-orbit from GEO either.And then there's the radiation belts to deal with.
Quote from: floss on 01/11/2014 11:45 pmDreamchaser can be launched to GTO by Ariane 5 wonder what missions it could do in GEO rendezvous with a Bigalow station maby?If a spacecraft can be launched to GTO it can presumably be launched to EML-1 Transfer Orbit.The extra propellant, radiation hardening and enhanced hear shield suggest a variant of the Dream Chaser would be used for EML-1 trips.
Ariane 6 would not be able to lift DC to GEO or L1/L2 and it is not going to be man-rated either.If things go to plan Ariane 5 should be phased out starting in 2021. Not much time before that for interesting DC missions.
Quote from: MikeAtkinson on 01/12/2014 07:24 amAriane 6 would not be able to lift DC to GEO or L1/L2 and it is not going to be man-rated either.If things go to plan Ariane 5 should be phased out starting in 2021. Not much time before that for interesting DC missions.Ariane 5 won't be phased out before 2025.
Quote from: gosnold on 01/10/2014 02:44 pmQuote from: yg1968 on 01/10/2014 01:19 pmQuote from: gosnold on 01/10/2014 08:51 amIsn't ITAR going to be a problem for Europeans? For instance if they want to refurbish the craft themselves between launches?I am not an expert on ITAR but I don't think that SNC would sell a DC to ESA. They would rent it and SNC (or one of their U.S. subcontractors) would operate it. I believe that there are efforts to remove spacecrafts from ITAR. But that has yet to be done.Well it would seem to go against the ESA "buy european" policy then. I was thinking DLR might buy a DC on its own funds (no political problems with ESA in this case) and then ESA could operate it with european industries doing the maintenance/refurbishment. But it is too early to tell anyway.DLR is not ESA.
Could a separate propulsion module be adapted to DC? Such as the ATV SM is being adapted to Orion?That would be more European tech content.
Quote from: Jcc on 01/12/2014 02:18 pmCould a separate propulsion module be adapted to DC? Such as the ATV SM is being adapted to Orion?That would be more European tech content.A propulsion module, as in a small rocket stage? Sure. The SM is very different from that, however, as it provides life support and power as well as propulsion.
Quote from: M129K on 01/12/2014 02:30 pmQuote from: Jcc on 01/12/2014 02:18 pmCould a separate propulsion module be adapted to DC? Such as the ATV SM is being adapted to Orion?That would be more European tech content.A propulsion module, as in a small rocket stage? Sure. The SM is very different from that, however, as it provides life support and power as well as propulsion. People doing that Lego thing again.