Quote from: Comga on 10/20/2021 08:46 pmQuote from: Lemurion on 10/19/2021 09:58 pmI really don't think human-rating Vulcan is an issue. The rocket was designed with that in mind so it's likely primarily a question of paperwork and the necessary flight record. Human rating Vulcan is not a (unsolvable) technical issue.It's a financial issue.ULA is waiting for a customer to pay for it.It represents a substantial "barrier to entry" for commercial (non-NASA, non-ISS) Starliner flights.(Anyone have a basis with which to estimate to how much it would cost?) Who is going to pay for it before the first flight?It really looks like an insurmountable barrier for Starliner.Unless Sierra Space needs it for a crew capable Dream Chaser.In which case Starliner would have two competitors.ThisBoeing has said, as recently as yesterday in relation to Starliner that they intend to complete their contractual obligations to NASA. They already have the Atlas-V launchers needed for this, but there are no other Atlas-V rides available. Boeing has made no statements that I'm aware of that indicate that they're even considering launches of Starliner outside of this Commercial Crew contract.Starliner appears to be already an expensive vehicle relative to Crew Dragon, and adding in the cost of Vulcan crew qualification would only make this worse.
Quote from: Lemurion on 10/19/2021 09:58 pmI really don't think human-rating Vulcan is an issue. The rocket was designed with that in mind so it's likely primarily a question of paperwork and the necessary flight record. Human rating Vulcan is not a (unsolvable) technical issue.It's a financial issue.ULA is waiting for a customer to pay for it.It represents a substantial "barrier to entry" for commercial (non-NASA, non-ISS) Starliner flights.(Anyone have a basis with which to estimate to how much it would cost?) Who is going to pay for it before the first flight?It really looks like an insurmountable barrier for Starliner.Unless Sierra Space needs it for a crew capable Dream Chaser.In which case Starliner would have two competitors.
I really don't think human-rating Vulcan is an issue. The rocket was designed with that in mind so it's likely primarily a question of paperwork and the necessary flight record.
Wouldn't ULA get money from NASA for human rating Vulcan or is it Boeing's investment?
A system engineered to carry the destructive power to destroy a city cannot have an accident on the pad.
Being able to just turn a key for launch is a far more difficult problem to solve than required for something that needs an engineering staff to launch. A vehicle that can stand by for years safely with a nuclear warhead attached to it is a huge engineering challenge...
A vehicle that can be serviced by military personal is a far greater challenge than a vehicle serviced by engineering staff.
Quote from: Kiwi53 on 10/20/2021 08:58 pmQuote from: Comga on 10/20/2021 08:46 pmQuote from: Lemurion on 10/19/2021 09:58 pmI really don't think human-rating Vulcan is an issue. The rocket was designed with that in mind so it's likely primarily a question of paperwork and the necessary flight record. Human rating Vulcan is not a (unsolvable) technical issue.It's a financial issue.ULA is waiting for a customer to pay for it.It represents a substantial "barrier to entry" for commercial (non-NASA, non-ISS) Starliner flights.(Anyone have a basis with which to estimate to how much it would cost?) Who is going to pay for it before the first flight?It really looks like an insurmountable barrier for Starliner.Unless Sierra Space needs it for a crew capable Dream Chaser.In which case Starliner would have two competitors.ThisBoeing has said, as recently as yesterday in relation to Starliner that they intend to complete their contractual obligations to NASA. They already have the Atlas-V launchers needed for this, but there are no other Atlas-V rides available. Boeing has made no statements that I'm aware of that indicate that they're even considering launches of Starliner outside of this Commercial Crew contract.Starliner appears to be already an expensive vehicle relative to Crew Dragon, and adding in the cost of Vulcan crew qualification would only make this worse.Wouldn't ULA get money from NASA for human rating Vulcan or is it Boeing's investment?
NASA is considering acquisition of Commercial Crew Space Transportation Services from one or more U.S. providers through commercial services contracts. Depending on mission requirements, NASA may purchase single seats, multiple seats within one mission, or seats for an entire mission.
they can withstand intense vibrations from a nuclear attack and launch within a few minutes afterward. Even the ground support equipment has to be extremely robust and yet useable my military personnel.