Quick question: Why do we call it the "European Service Module" instead of just the "Orion Service Module"? We don't say "American Orion Capsule" and "American SLS Upper Stage" or whatever.
Quote from: Arcas on 05/23/2016 05:21 pmQuick question: Why do we call it the "European Service Module" instead of just the "Orion Service Module"? We don't say "American Orion Capsule" and "American SLS Upper Stage" or whatever.I am guessing it is because I think there is only a contract to supply the ESM for just the first mission. While unlikely, this does leave the option open for for it to be replaced down the road with an American version. I suspect the ESM will continue to be supplied as needed for further missions once the details and timing of those get finalized.http://www.nasa.gov/exploration/systems/mpcv/orion_feature_011613.html
Quote from: Arcas on 05/23/2016 05:21 pmQuick question: Why do we call it the "European Service Module" instead of just the "Orion Service Module"? We don't say "American Orion Capsule" and "American SLS Upper Stage" or whatever.The Orion Service Module design is based on ESA's Automated Transfer Vehicle (ATV) spacecraft, and is not a NASA design.So since it's based on a European design, it's called the European Service Module. No doubt if it was NASA designed and U.S. built, it would just be called the "Service Module".
I disagree. Arrays which can be canted during engine boosts are pretty non standard (see Orion EM-1 youtube video).
Quote from: Coastal Ron on 05/24/2016 02:08 amQuote from: Arcas on 05/23/2016 05:21 pmQuick question: Why do we call it the "European Service Module" instead of just the "Orion Service Module"? We don't say "American Orion Capsule" and "American SLS Upper Stage" or whatever.The Orion Service Module design is based on ESA's Automated Transfer Vehicle (ATV) spacecraft, and is not a NASA design.So since it's based on a European design, it's called the European Service Module. No doubt if it was NASA designed and U.S. built, it would just be called the "Service Module".Yes, obviously, but why? Why does Europe and NASA have to specify it. If NASA isn't slapping "American" on the title of everything they build, why does Europe have to.
Quote from: Arcas on 05/23/2016 05:21 pmQuick question: Why do we call it the "European Service Module" instead of just the "Orion Service Module"? We don't say "American Orion Capsule" and "American SLS Upper Stage" or whatever.This is to differentiate the ESA-designed and -supplied module from the presumptive American Service Module that I'm guessing is supposed to fly from EM-3 onwards.
For people living in Ohio or nearby, NASA Plum Brook Station is having an open house this weekend. Visitors will be able to visit their test facilities and see directly the Orion STA Service Module currently being tested there.More information here: http://www.nasa.gov/feature/nasa-glenn-s-plum-brook-station-invites-the-public-to-visitSent from my Nexus 5 using Tapatalk
Quote from: Ben the Space Brit on 06/01/2016 08:46 pmQuote from: Arcas on 05/23/2016 05:21 pmQuick question: Why do we call it the "European Service Module" instead of just the "Orion Service Module"? We don't say "American Orion Capsule" and "American SLS Upper Stage" or whatever.This is to differentiate the ESA-designed and -supplied module from the presumptive American Service Module that I'm guessing is supposed to fly from EM-3 onwards.Sorry, but no. That is not even remotely the case.
Quote from: woods170 on 06/11/2016 11:01 amQuote from: Ben the Space Brit on 06/01/2016 08:46 pmQuote from: Arcas on 05/23/2016 05:21 pmQuick question: Why do we call it the "European Service Module" instead of just the "Orion Service Module"? We don't say "American Orion Capsule" and "American SLS Upper Stage" or whatever.This is to differentiate the ESA-designed and -supplied module from the presumptive American Service Module that I'm guessing is supposed to fly from EM-3 onwards.Sorry, but no. That is not even remotely the case.Okay, then; if I'm wrong, what's the right answer?
There is only one little issue with your nice scenario : that the real decision makers, the ESA member states, go along. They are notorious for preferring development to recurring production. See ATV which died after the fifth copy.
Europe’s Orion service module shipment to U.S. delayed by three months
>Quote from: hektor on 06/19/2016 09:28 amEurope’s Orion service module shipment to U.S. delayed by three months Oh, for the love of...
Prior to the ATV, ESA had no experience with man-rated craft, so this was actually a really important development for them (which has served to generate knowledge useful for the ESV).