...The failure is in Aerojet/Rocketdyne/P&W for not doing the work. Spacex did it, Blue Origin is doing it.
The deadline for submitting proposals for CRS2 is today (December 2). http://procurement.jsc.nasa.gov/crs2/schedule.asp
Contract Award 06/10/15
Contract award date has been pushed from April 28th to June 10th 2015:QuoteContract Award 06/10/15 http://procurement.jsc.nasa.gov/crs2/schedule.asp
Quote from: yg1968 on 12/05/2014 04:36 amContract award date has been pushed from April 28th to June 10th 2015:QuoteContract Award 06/10/15 http://procurement.jsc.nasa.gov/crs2/schedule.aspAnything going on in May that is forcing the slip?
I concur that a free flyer would seem a very interesting solution to the microgravity problem. Specially when you already have Cygnus. I'm pretty sure that a 4.2m Cygnus wouldn't be very expensive, since Thales had to reduce the pressurized module from that size. And I thought that the station had multiple attitude changes, for example to minimize the solar panels drag. And they have the reboosts and DAM that are much worse.Does the crew movement for loading and unloading really affect to much? Moving a few tens of kilos in a 400 tonnes station shouldn't have such an impact. I would guess that the gravity gradient and attitude control per orbit would be much worse offenders.I have to admit, that I'm still pondering what should be the lessons for the next space laboratory. I believe the fully autonomous rendezvous, capture and berthing should be a must. Or at the very least handled by the ground crew. I love the idea of a free flyer. Not only for the microgravity reasons but for the potential for dangerous experiments that would be unacceptable on a crewed situation. If I had to work on space I would like to develop the business and technical plan for a commercial continuation of the ISS.
Why did NASA not include in the specifications for "autonomous rendezvous, capture and berthing" in CRS-2 or at least have it handled by ground control?
Quote from: HIP2BSQRE on 12/07/2014 05:36 pmWhy did NASA not include in the specifications for "autonomous rendezvous, capture and berthing" in CRS-2 or at least have it handled by ground control?At least according Jim, Canadarm2 doesn't have that capability. I'm not sure what it would take to add it.
Quote from: manboy on 12/07/2014 08:56 pmQuote from: HIP2BSQRE on 12/07/2014 05:36 pmWhy did NASA not include in the specifications for "autonomous rendezvous, capture and berthing" in CRS-2 or at least have it handled by ground control?At least according Jim, Canadarm2 doesn't have that capability. I'm not sure what it would take to add it.From what I'be read unloading and loading supply vehicles takes a lot of crew time. Couldn't NASA use a robot under earth control to do a lot of this storeman's work.
Do we know who submitted bids? Who do we expect to get contracts?
And do you know how Mir SS was forced to be retired?
Looks like we have confirmation that Boeing and SNC both put in bids on the CRS2 contract.http://spacenews.com/boeing-offers-cst-100-for-iss-cargo-contract/