I will not give you 1/2 since the current spaceX list prices are 1/2 what you can get an Atlas 401 for...
1. I think F9 will be half the price of Atlas even after the price stabilizes but it won't eat in to DOD contracts any time soon.2. The EELVs were designed around the DOD's requirements which probably is one reason you don't see DOD payloads on Ariane.
Wrong1. It is already greater than 1/2
ORS is regarded within the Pentagon as a subset of the larger "transformation" OSD agenda that became Dead Man Walking the minute Donald Rumsfeld walked out the door.[...]the truly critical "responsive" needs are in GEO, MEO, and high LEO and comms and power budgeting mandates that they be big expensive complex machines that can't afford to build more than we need or sit on a shelf unused.
just another example of the reality not being as pretty as the concept.
Quote from: Jim on 06/20/2010 09:38 pmWrong1. It is already greater than 1/2Spacex has a max GTO mission listed at 56M while an Atlas 401 is 138M.
Most of Spacex's price increases seem to be simply matching inflation remember the USD took a real beating during 2007 through 2009.The record oil prices of 2008 were esp devastating.
Orbital mechanics has a lot to do with ORS not really being viable for the battlefield commander. Constellation replenishment is a different issue.For imaging, it only works for the first pass, afterwards, the spacecraft is not in position for hours to days for another pass
Where the TACSATs have succeeded is in justifying launch of R&D payloads on SLVs vice as tertiary payloads on real operational sats.
Besides, we are talking about responsive spacelift and responsive spacecraft. Huge behemoth sats don't qualify for that market.
1. In all seriousness ... assuming that the F9 can indeed provide near on-demand launch services 2... then if the DoD ** doesn't ** have some quick turn payloads that can fit into the F9 performance envelope they better start considering developing some. 3. Isn't that kinda the same mission profile for the OTV?
As we go off the rails on the OffTopic Train, correct me if I am wrong, but the best place to store a satellite is in orbit. So the best way to do responsive space missions is to already have the bird waiting on orbit.
1. Which only works if the lifetime of satellites is long enough2. and if you know the orbit it's going to be in.
Quote from: psychocandy007 on 07/07/2010 03:01 am1. In all seriousness ... assuming that the F9 can indeed provide near on-demand launch services 2... then if the DoD ** doesn't ** have some quick turn payloads that can fit into the F9 performance envelope they better start considering developing some. 3. Isn't that kinda the same mission profile for the OTV?1. Define on-demand launch services? Anyways, that is not what Spacex offers. Also, Spacex's launch ops are no more responsive than Atlas. 2. No, there is no need and it is too small. Also, it is Spacex's job to accommodate the payloads not the reverse.3. That is no where near the OTV mission profile. OTV is not ORS.The most responsive ORS is to have spares on orbit.
There's a paper that I've got regarding an examination of costs of launch systems and I'll dig it out sometime, but one section deals with payloads and how launch providers go to considerable lengths, sometimes at great cost to accommodate particular payloads. I believe SpaceX, as part of their cost efficiency drive, is providing standard interfaces and I also think that this is the way to go in many areas if the cost of launch is going to come down.
Jim, do you know what the commercial price of an Atlas would be?