zanl188 wrote:zanl188 wrote:Latest Starlink mission has had a number of scrubs. Weather. Unusual to see a Falcon 9 launch scrubbed…
Scrubtember continues…. This evenings launch attempt has been scrubbed now targeting 2018EDT tomorrow evening…
zanl188 wrote:Latest Starlink mission has had a number of scrubs. Weather. Unusual to see a Falcon 9 launch scrubbed…
Latest Starlink mission has had a number of scrubs. Weather. Unusual to see a Falcon 9 launch scrubbed…
Beamforming from a satellite to a phone I get, but the thing I don’t understand is how a tiny iphone radio with an omnidirectional antenna can send a signal to the satellite, such that it is strong enough to be received/establish a data link. Bafflingly amazing engineering if it works. The Apple iP...Jump to post
Mods can we keep this thread on topic, this thread is for launch updates, if you want to debate whether SLS vs Starship is the future create a new thread. I've been enjoying the updates here from Avatar2go and now I have to scroll through off topic messages. Concur. This debate is old and tired - i...Jump to post
Scrub today, due to inability to heal the hydrogen leak in the core stage and umbilical. That's a major disappointment for them. Hydrogen leaks, unfortunately, were not unexpected. Shuttle had numerous issues with LH2 leaks. Makes me wonder how similar are the shuttle and SLS tail service mast quic...Jump to post
In fact, the RS-25 was selected because it was, and remains, the highest performing engine ever built. The cost of developing a new engine is very high, and the improvement in performance would be marginal at best. The bones of the engine are excellent, so it was decided to improve the avionics, se...Jump to post
From the NASA Artemis media conference today, they will defer the next launch attempt until Saturday Sept 3, to give them more time to review data from Monday's attempt. The launch window opens at 2:17 pm ET, and is 2 hours long, as before. This date still allows for a 3rd attempt on Memorial Day, ...Jump to post
JetBuddy wrote:Is there a way to increase LOX flow to the #3 engine to get it into "start box" temperature range?
Launch is scrubbed. Next opportunity on Friday.
Avatar2go wrote:Bleed system is not new. It's likely to be a ground side issue. The LH2 bleed flow from engine #3 to the flare stack is impeded somehow.
NASA’s live coverage is delayed by 15 minutes. KrisYYZ Delay is now 35 min by my count NASA TV is spot on at my location. Keep in mind the NASA clock allows for built in holds. Regarding RS25 #3 bleed issue: I don’t recall this being an issue during the green run. Is the bleed system legacy shuttle...Jump to post
Artemis 1 Mission Managers press briefing this morning: https://youtu.be/qdGdpfgjNyMJump to post
Video of T-Mobile / SpaceX announcement: https://youtu.be/Qzli-Ww26Qs?t=350Jump to post
NASA PR campaign for Artemis 1 ramps up:
Buckeyetech wrote:They’ve got the Gs and H models at opposite ends of each other. The H’s are at the extreme north west side of the field, (intact), with the Gs at the south east side, just off the noses of the C-5s. (Quartered up).
Wouldn't it be possible to structurally modify them again? If the frame was zero-houred, updated with new radar, new engines, new avionics to eventually replace the H? One, I don’t believe there are enough G models left to be worth modifying. Two, demodifying defeats the purpose of the original mod...Jump to post
I just did a google earth tour around Davis Monthan. Maybe I’m blind but I didn’t see any G models, whole or chopped. Did see about a dozen H models.Jump to post
The B-52G structural mod was done in such a way as to enable treaty verification even if the B-52G was reengined with the Hs TF33s.Jump to post
Structurally the -G is a -H with older jet engines, but most - G's seem to be spliced (not chopped as the older series !) into pieces to be used for spare parts for the active -H fleet B-52Gs were structurally modified in the 80’s, for treaty verification purposes, and are no longer structurally th...Jump to post
Any remaining B-52Gs have been structurally modified as ALCM carriers and are banned by treaty. The treaty just says how many active aircraft you can have, it doesn't say you can't upgrade or phase out existing aircraft. If you start with an H, a G or an F is irrelevant. B-52G was structurally modi...Jump to post
Any remaining B-52Gs have been structurally modified as ALCM carriers and are banned by treaty.Jump to post
Avatar2go wrote:B7 did a longer duration static fire of 21 seconds today, on 1 engine. So another step forward. This was to test autogenous pressurization of the propellant tanks.
Starship Booster number 7 did its first static fire a couple of hours ago. Single engine.