Thanks Dave S, when you said that Pathfinder was used for VAB checkout operations, I thought you were inferring that there was never a fit-check of any type that occurred out at the pad. I then came across the pic of Enterprise being checked out at 39-A and it didn't compute for me.SO the "The core stage pathfinder demo in the VAB will not involve stacking it on the ML or going out to the pad." and "It (referring to the core stage pathfinder) will pretty much do what the orbiter mock-up Pathfinder did when it was at KSC, check out the facilities but not go to the pad."So, is there any SLS program components, other than the core stage pathfinder or the SLS Core Stage-1 (C/S-1) that will be stacked on ML-1 and taken to 39-B for any sort of a test, be it a Crawler Transport test, or any sort of Pad based fit-check test?My apologies for the difficult conversation via written text. An in person conversation whilst enjoying a beverage would be far more cogent.
The Saturn-V used a "Fixed Service Structure"(FSS) aka "Launch Tower", formally aka the "Launch Umbilical Tower"(LUT) and a Mobile Service Structure(MSS) as pictured below in picture #2. The Saturn-V FSS is attached to the stack in the VAB atop a Mobile Launcher, and a Crawler Transporter(C/T) carries the stack to the pad, sets it down atop the holddown posts and then retreats. The MSS is then positioned directly across from the FSS thus encapsulating the stack, the MSS is withdrawn prior to launch.
(my SWAG: some sort of acoustic damper system)
There is a piece of hardware that consists of a white cross beam that was placed in between both SRBs. There was a picture here at NSF of this cross beam both installed atop a pair of SRBs on a Shuttle MLP and pictured on teh floor beside a wall. Ive searched and cant find the pic of thi beam.
https://www.semanticscholar.org/paper/Operating-Deflection-Shapes-for-the-Space-Shuttle-Buehrle-Kappus/d70d351a376eca8949e33c2d9626694e792a39dehttps://www.nasa.gov/missions/shuttle/f_vibetest.htmlQuote from: Hog on 12/18/2018 03:53 pmThere is a piece of hardware that consists of a white cross beam that was placed in between both SRBs. There was a picture here at NSF of this cross beam both installed atop a pair of SRBs on a Shuttle MLP and pictured on teh floor beside a wall. Ive searched and cant find the pic of thi beam.Edit - finally found the photo of the SRB crossbeam:http://www.capcomespace.net/dossiers/espace_US/shuttle/ksc/VAB/VAB%20ET%20Cross%20Beam%201.JPG
I'm looking for some good Schematics and animations or blueprints of the RS-25, I'm an L2 subscriber, but I'm new so the Setup is still a little confusing for me. Thanks!
Regarding the upcoming Wet Dress Rehearsal (WDR) for the Artemis-1 Core Stage.Will this be the first time that an SLS core stage has been completely filled with LOx and LH2?700,000 gallons of propellant is 2,649,788 litres which will be burned in just over 8 minutes. Simply amazing. Apparently the hydrogen tank is the largest cryogenic tank for flight at 130 feet(39.6 meters) x 27.6 ft. (8.4 m).
Re the amount of propellant's. What is that in Kg or tones?thanks
Why are the panels of the intertank of the core stage bolted and not welded?https://www.nasa.gov/exploration/systems/sls/multimedia/sls-intertankit says the ribs need to be bolted, so was the production simplified and one connection process used rather than bolting + friction stir welding?
Quote from: Remes on 08/31/2022 08:03 amWhy are the panels of the intertank of the core stage bolted and not welded?https://www.nasa.gov/exploration/systems/sls/multimedia/sls-intertankit says the ribs need to be bolted, so was the production simplified and one connection process used rather than bolting + friction stir welding?the answer is located within the link you provided."Connecting the liquid hydrogen and liquid oxygen tanks, the intertank is built differently from the rest of the core stage. It is bolted together, not welded, with ribs on the outside for strength. The added strength is required because the intertank is a connection point for the rocket's twin solid rocket boosters. The intertank also houses avionics and electronics"