CAPE CANAVERAL, Fla. – On Complex 37 at Cape Canaveral Air Force Station in Florida, the GOES-O and Delta IV second stage begin rolling out of the Horizontal Integration Facility aboard a transporter.
QuoteCAPE CANAVERAL, Fla. – On Complex 37 at Cape Canaveral Air Force Station in Florida, the GOES-O and Delta IV second stage begin rolling out of the Horizontal Integration Facility aboard a transporter.http://mediaarchive.ksc.nasa.gov/search.cfm?cat=4
This says a lot about why Delta IV is not competitive. The launch date is April 28 and the booster has to be erected in late February!
Quote from: someone on 02/28/2009 04:12 pmThis says a lot about why Delta IV is not competitive. The launch date is April 28 and the booster has to be erected in late February! IIRC, weren't they once targeting one month between arrival at the HIF and launch?What went wrong?
Quote from: someone on 02/28/2009 04:12 pmThis says a lot about why Delta IV is not competitive. The launch date is April 28 and the booster has to be erected in late February!IIRC, weren't they once targeting one month between arrival at the HIF and launch?What went wrong?
Delta IV processing is slower due to three things:- Additional processing requirements (i.e. WDR for each rocket prior to launch)- Processing taking longer than original planned (i.e. actually 3 shifts not 2)- Reduced resources (no 3rd shift)As it stands Delta IV launches are staffed for 3 months for a Med/M+ launch... Takes longer to process a Heavy.
Quote from: TrueGrit on 02/28/2009 08:17 pmDelta IV processing is slower due to three things:- Additional processing requirements (i.e. WDR for each rocket prior to launch)- Processing taking longer than original planned (i.e. actually 3 shifts not 2)- Reduced resources (no 3rd shift)As it stands Delta IV launches are staffed for 3 months for a Med/M+ launch... Takes longer to process a Heavy.I suppose that there isn't any hurry. Only four Delta IV launches are projected for 2009, and one has already happened. - Ed Kyle
Quote from: edkyle99 on 02/28/2009 08:55 pmI suppose that there isn't any hurry. Only four Delta IV launches are projected for 2009, and one has already happened. - Ed KyleThat's probably a symptom rather than a cause.
I suppose that there isn't any hurry. Only four Delta IV launches are projected for 2009, and one has already happened. - Ed Kyle
Quote from: GW_Simulations on 02/28/2009 09:50 pmQuote from: edkyle99 on 02/28/2009 08:55 pmI suppose that there isn't any hurry. Only four Delta IV launches are projected for 2009, and one has already happened. - Ed KyleThat's probably a symptom rather than a cause.I believe that ULA could up the launch rate if needed - but it isn't going to be needed as near as I can tell. Atlas V costs less and flies more, but it sits in its processing hanger for a long time too, and also has a WDR, etc. - Ed Kyle
Launch rates could increase if a) Ares I is dumped and Delta IV is chosen as the LVorb) the market place demands a replacement for Delta II, which would be Delta IV Liteboth have a medium probability of happening at best, however in an either or situation that does lead to a good possibility of at least one event to increase the flight rate.