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by zanl188
Mon Sep 19, 2022 12:46 am
Forum: Military Aviation & Space Flight
Topic: SpaceX - Tests, Launches, Developments - 2022
Replies: 227
Views: 28680

Re: SpaceX - Tests, Launches, Developments - 2022

https://youtu.be/JzWSYJBSAl4


Scrubtember continues…. This evenings launch attempt has been scrubbed now targeting 2018EDT tomorrow evening…


Starlink 4-34 finally launched this evening.
-->

zanl188 wrote:
zanl188 wrote:
Latest Starlink mission has had a number of scrubs. Weather. Unusual to see a Falcon 9 launch scrubbed…

https://youtu.be/JzWSYJBSAl4


Scrubtember continues…. This evenings launch attempt has been scrubbed now targeting 2018EDT tomorrow evening…


Starlink 4-34 finally launched this evening.

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by zanl188
Sat Sep 17, 2022 10:52 pm
Forum: Military Aviation & Space Flight
Topic: SpaceX - Tests, Launches, Developments - 2022
Replies: 227
Views: 28680

Re: SpaceX - Tests, Launches, Developments - 2022

https://youtu.be/JzWSYJBSAl4


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…

https://youtu.be/JzWSYJBSAl4


Scrubtember continues…. This evenings launch attempt has been scrubbed now targeting 2018EDT tomorrow evening…

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by zanl188
Fri Sep 16, 2022 1:31 am
Forum: Military Aviation & Space Flight
Topic: SpaceX - Tests, Launches, Developments - 2022
Replies: 227
Views: 28680

Re: SpaceX - Tests, Launches, Developments - 2022

https://youtu.be/JzWSYJBSAl4
-->

Latest Starlink mission has had a number of scrubs. Weather. Unusual to see a Falcon 9 launch scrubbed…

https://youtu.be/JzWSYJBSAl4

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by zanl188
Tue Sep 13, 2022 11:49 am
Forum: Military Aviation & Space Flight
Topic: Aircraft to transport QE2's coffin to London
Replies: 17
Views: 2340

Re: Aircraft to tranport Queen's coffin to London

I should think the A330 or A320, particularly if they can find a way to transport the coffin on main deck. Failing that, A400 is my guess.

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by zanl188
Sun Sep 11, 2022 10:10 pm
Forum: Military Aviation & Space Flight
Topic: SpaceX - Tests, Launches, Developments - 2022
Replies: 227
Views: 28680

Re: SpaceX - Tests, Launches, Developments - 2022

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...

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by zanl188
Sun Sep 11, 2022 10:09 pm
Forum: Military Aviation & Space Flight
Topic: SpaceX - Tests, Launches, Developments - 2022
Replies: 227
Views: 28680

Re: SpaceX - Tests, Launches, Developments - 2022

kitplane01 wrote:

Can you share more? How does an existing 5G phone talk to satellite in space? Surely the sat cannot have a license to broadcast on the 5G frequencies down to earth?


Did you watch the video I posted?

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by zanl188
Thu Sep 08, 2022 11:44 pm
Forum: Military Aviation & Space Flight
Topic: SLS / Orion - Tests, Launches, & Developments
Replies: 345
Views: 41275

Re: SLS / Orion - Tests, Launches, & Developments

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...

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by zanl188
Mon Sep 05, 2022 3:27 pm
Forum: Military Aviation & Space Flight
Topic: Sierra - Tests, Launches, and Developments
Replies: 4
Views: 956

Re: Sierra - Tests, Launches, and Developments

https://youtu.be/g-uvxzrerzM
-->

The first Dreamchaser has a name: Tenacity

https://youtu.be/g-uvxzrerzM

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by zanl188
Sat Sep 03, 2022 8:53 pm
Forum: Military Aviation & Space Flight
Topic: SLS / Orion - Tests, Launches, & Developments
Replies: 345
Views: 41275

Re: SLS / Orion - Tests, Launches, & Developments

LH2 fill line saw a pressure spike earlier today. Unknown if it’s related to the new leak.

Evaluating options to replace and test the “soft goods” in the LH2 quick disconnect.

No launch attempt Monday.

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by zanl188
Sat Sep 03, 2022 3:36 pm
Forum: Military Aviation & Space Flight
Topic: SLS / Orion - Tests, Launches, & Developments
Replies: 345
Views: 41275

Re: SLS / Orion - Tests, Launches, & Developments

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...

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by zanl188
Sat Sep 03, 2022 3:18 pm
Forum: Military Aviation & Space Flight
Topic: SLS / Orion - Tests, Launches, & Developments
Replies: 345
Views: 41275

Re: SLS / Orion - Tests, Launches, & Developments

Scrubbed for today.

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by zanl188
Sat Sep 03, 2022 2:59 pm
Forum: Military Aviation & Space Flight
Topic: SLS / Orion - Tests, Launches, & Developments
Replies: 345
Views: 41275

Re: SLS / Orion - Tests, Launches, & Developments

Launch team has recommended a scrub - no decision yet.

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by zanl188
Sat Sep 03, 2022 2:28 pm
Forum: Military Aviation & Space Flight
Topic: SLS / Orion - Tests, Launches, & Developments
Replies: 345
Views: 41275

Re: SLS / Orion - Tests, Launches, & Developments

Second warm up of hydrogen quick disconnect did not fix leak.

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by zanl188
Sat Sep 03, 2022 2:25 pm
Forum: Military Aviation & Space Flight
Topic: SLS / Orion - Tests, Launches, & Developments
Replies: 345
Views: 41275

Re: SLS / Orion - Tests, Launches, & Developments

LOX tank is full. Hydrogen at 10 percent. ICPS tanking preps underway.

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by zanl188
Sat Sep 03, 2022 2:00 pm
Forum: Military Aviation & Space Flight
Topic: SLS / Orion - Tests, Launches, & Developments
Replies: 345
Views: 41275

Re: SLS / Orion - Tests, Launches, & Developments

Trying plan A again… allow hydrogen quick disconnect to warm up, then chill it down.

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by zanl188
Sat Sep 03, 2022 1:34 pm
Forum: Military Aviation & Space Flight
Topic: SLS / Orion - Tests, Launches, & Developments
Replies: 345
Views: 41275

Re: SLS / Orion - Tests, Launches, & Developments

Plan to seal hydrogen leak with helium did not work. Options being discussed.

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by zanl188
Sat Sep 03, 2022 12:55 pm
Forum: Military Aviation & Space Flight
Topic: SLS / Orion - Tests, Launches, & Developments
Replies: 345
Views: 41275

Re: SLS / Orion - Tests, Launches, & Developments

mxaxai wrote:
The main problem is manufacturing cost and complexity, and since politics decided that this was acceptable, the RS-25 is an obvious choice.



Obvious and only choice…

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by zanl188
Sat Sep 03, 2022 12:52 pm
Forum: Military Aviation & Space Flight
Topic: SLS / Orion - Tests, Launches, & Developments
Replies: 345
Views: 41275

Re: SLS / Orion - Tests, Launches, & Developments

New plan to fix hydrogen leak. Close fill and drain valve on core stage then pressurize the supply line with helium to reseat seal.

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by zanl188
Sat Sep 03, 2022 12:22 pm
Forum: Military Aviation & Space Flight
Topic: SLS / Orion - Tests, Launches, & Developments
Replies: 345
Views: 41275

Re: SLS / Orion - Tests, Launches, & Developments

Manual hydrogen fill of core stage underway and going well.

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by zanl188
Sat Sep 03, 2022 11:49 am
Forum: Military Aviation & Space Flight
Topic: SLS / Orion - Tests, Launches, & Developments
Replies: 345
Views: 41275

Re: SLS / Orion - Tests, Launches, & Developments

Plan to warm and re chill hydrogen quick disconnect in work.

Essentially reseats the seal.

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by zanl188
Sat Sep 03, 2022 11:46 am
Forum: Military Aviation & Space Flight
Topic: SLS / Orion - Tests, Launches, & Developments
Replies: 345
Views: 41275

Re: SLS / Orion - Tests, Launches, & Developments

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...

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by zanl188
Sat Sep 03, 2022 11:38 am
Forum: Military Aviation & Space Flight
Topic: SLS / Orion - Tests, Launches, & Developments
Replies: 345
Views: 41275

Re: SLS / Orion - Tests, Launches, & Developments

Core stage hydrogen tanking stopped. LOX load slowed. Due to hydrogen leak on core stage quick disconnect.

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by zanl188
Sat Sep 03, 2022 11:11 am
Forum: Military Aviation & Space Flight
Topic: SLS / Orion - Tests, Launches, & Developments
Replies: 345
Views: 41275

Re: SLS / Orion - Tests, Launches, & Developments

Go to tank for todays launch attempt.

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by zanl188
Wed Aug 31, 2022 11:47 am
Forum: Military Aviation & Space Flight
Topic: SLS / Orion - Tests, Launches, & Developments
Replies: 345
Views: 41275

Re: SLS / Orion - Tests, Launches, & Developments

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, ...

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by zanl188
Mon Aug 29, 2022 5:48 pm
Forum: Military Aviation & Space Flight
Topic: SLS / Orion - Tests, Launches, & Developments
Replies: 345
Views: 41275

Re: SLS / Orion - Tests, Launches, & Developments

BEG2IAH wrote:

Three were trending to where they needed to be, the #3 was off all along.


But weren’t where they needed to be at the opening of the window.

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by zanl188
Mon Aug 29, 2022 5:18 pm
Forum: Military Aviation & Space Flight
Topic: SLS / Orion - Tests, Launches, & Developments
Replies: 345
Views: 41275

Re: SLS / Orion - Tests, Launches, & Developments

None of the RS-25s got to correct operating temp. Problem is in bleed system, not the engines.

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by zanl188
Mon Aug 29, 2022 5:12 pm
Forum: Military Aviation & Space Flight
Topic: SLS / Orion - Tests, Launches, & Developments
Replies: 345
Views: 41275

Re: SLS / Orion - Tests, Launches, & Developments

No go for thunderstorms at opening of window. No go later in the window for lightning.

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by zanl188
Mon Aug 29, 2022 12:51 pm
Forum: Military Aviation & Space Flight
Topic: SLS / Orion - Tests, Launches, & Developments
Replies: 345
Views: 41275

Re: SLS / Orion - Tests, Launches, & Developments

JetBuddy wrote:
Is there a way to increase LOX flow to the #3 engine to get it into "start box" temperature range?

*edit*

Launch is scrubbed. Next opportunity on Friday.


Bleed failure was on hydrogen side, which is much colder than LOX - so no.

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by zanl188
Mon Aug 29, 2022 12:48 pm
Forum: Military Aviation & Space Flight
Topic: SLS / Orion - Tests, Launches, & Developments
Replies: 345
Views: 41275

Re: SLS / Orion - Tests, Launches, & Developments

Avatar2go wrote:
Yeah, I feel bad for all the people that traveled for the launch today.


Summer time Florida launch of a new vehicle - scrub is almost inevitable.

This is why they test.

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by zanl188
Mon Aug 29, 2022 12:17 pm
Forum: Military Aviation & Space Flight
Topic: SLS / Orion - Tests, Launches, & Developments
Replies: 345
Views: 41275

Re: SLS / Orion - Tests, Launches, & Developments

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.


Aha! Must be new if ground side. Mobile launcher is new for SLS. And also not used for green run.

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by zanl188
Mon Aug 29, 2022 12:08 pm
Forum: Military Aviation & Space Flight
Topic: SLS / Orion - Tests, Launches, & Developments
Replies: 345
Views: 41275

Re: SLS / Orion - Tests, Launches, & Developments

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...

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by zanl188
Mon Aug 29, 2022 11:40 am
Forum: Military Aviation & Space Flight
Topic: SLS / Orion - Tests, Launches, & Developments
Replies: 345
Views: 41275

Re: SLS / Orion - Tests, Launches, & Developments

Avatar2go wrote:

Frost line is ice forming in a crevice of the foam. The crevice is a thermal contraction stress crack that develops in the SOFI. Happened on the shuttle ET as well.


“Cryo pumping”

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by zanl188
Sat Aug 27, 2022 4:54 pm
Forum: Military Aviation & Space Flight
Topic: SLS / Orion - Tests, Launches, & Developments
Replies: 345
Views: 41275

Re: SLS / Orion - Tests, Launches, & Developments

https://youtu.be/qdGdpfgjNyM
-->

Artemis 1 Mission Managers press briefing this morning: https://youtu.be/qdGdpfgjNyM

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by zanl188
Sat Aug 27, 2022 3:35 pm
Forum: Military Aviation & Space Flight
Topic: SLS / Orion - Tests, Launches, & Developments
Replies: 345
Views: 41275

Re: SLS / Orion - Tests, Launches, & Developments

Call to Stations has been accomplished and the countdown clock is operating for Artemis 1.

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by zanl188
Fri Aug 26, 2022 1:00 am
Forum: Military Aviation & Space Flight
Topic: SpaceX - Tests, Launches, Developments - 2022
Replies: 227
Views: 28680

Re: SpaceX - Tests, Launches, Developments - 2022

https://youtu.be/Qzli-Ww26Qs?t=350
-->

Video of T-Mobile / SpaceX announcement: https://youtu.be/Qzli-Ww26Qs?t=350

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by zanl188
Fri Aug 26, 2022 12:54 am
Forum: Military Aviation & Space Flight
Topic: SpaceX - Tests, Launches, Developments - 2022
Replies: 227
Views: 28680

Re: SpaceX - Tests, Launches, Developments - 2022

Starlink cell service will require Gen 2 satellites and Starship.. Some technology demonstrations may be possible with earlier satellites and Falcon 9.

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by zanl188
Fri Aug 26, 2022 12:15 am
Forum: Military Aviation & Space Flight
Topic: SpaceX - Tests, Launches, Developments - 2022
Replies: 227
Views: 28680

Re: SpaceX - Tests, Launches, Developments - 2022

T-Mobile to provide cell service to existing cell phones thru Starlink satellites. In Beta starting next year.

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by zanl188
Fri Aug 26, 2022 12:06 am
Forum: Military Aviation & Space Flight
Topic: SpaceX - Tests, Launches, Developments - 2022
Replies: 227
Views: 28680

Re: SpaceX - Tests, Launches, Developments - 2022

SpaceX / T-Mobile announcement coming shortly.

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by zanl188
Wed Aug 24, 2022 11:26 pm
Forum: Military Aviation & Space Flight
Topic: SLS / Orion - Tests, Launches, & Developments
Replies: 345
Views: 41275

Re: SLS / Orion - Tests, Launches, & Developments

https://youtu.be/wKwoBudYIiI
-->

NASA PR campaign for Artemis 1 ramps up:

https://youtu.be/wKwoBudYIiI

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by zanl188
Sat Aug 13, 2022 8:21 pm
Forum: Military Aviation & Space Flight
Topic: Boeing B-52 Re-engine News and Discussion Thread
Replies: 367
Views: 84495

Re: Boeing B-52 Re-engine News and Discussion Thread

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).


I see the C-5s but no G models.

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by zanl188
Sat Aug 13, 2022 8:13 pm
Forum: Military Aviation & Space Flight
Topic: Boeing B-52 Re-engine News and Discussion Thread
Replies: 367
Views: 84495

Re: Boeing B-52 Re-engine News and Discussion Thread

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...

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by zanl188
Sat Aug 13, 2022 7:44 pm
Forum: Military Aviation & Space Flight
Topic: Boeing B-52 Re-engine News and Discussion Thread
Replies: 367
Views: 84495

Re: Boeing B-52 Re-engine News and Discussion Thread

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.

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by zanl188
Sat Aug 13, 2022 6:58 pm
Forum: Military Aviation & Space Flight
Topic: Boeing B-52 Re-engine News and Discussion Thread
Replies: 367
Views: 84495

Re: Boeing B-52 Re-engine News and Discussion Thread

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.

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by zanl188
Sat Aug 13, 2022 6:53 pm
Forum: Military Aviation & Space Flight
Topic: Boeing B-52 Re-engine News and Discussion Thread
Replies: 367
Views: 84495

Re: Boeing B-52 Re-engine News and Discussion Thread

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...

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by zanl188
Sat Aug 13, 2022 6:49 pm
Forum: Military Aviation & Space Flight
Topic: Boeing B-52 Re-engine News and Discussion Thread
Replies: 367
Views: 84495

Re: Boeing B-52 Re-engine News and Discussion Thread

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...

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by zanl188
Sat Aug 13, 2022 1:14 pm
Forum: Military Aviation & Space Flight
Topic: Boeing B-52 Re-engine News and Discussion Thread
Replies: 367
Views: 84495

Re: Boeing B-52 Re-engine News and Discussion Thread

Any remaining B-52Gs have been structurally modified as ALCM carriers and are banned by treaty.

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by zanl188
Fri Aug 12, 2022 12:59 am
Forum: Military Aviation & Space Flight
Topic: SpaceX - Tests, Launches, Developments - 2022
Replies: 227
Views: 28680

Re: SpaceX - Tests, Launches, Developments - 2022

https://youtu.be/XtNhzsSZzug
-->

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.


https://youtu.be/XtNhzsSZzug

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by zanl188
Wed Aug 10, 2022 1:21 am
Forum: Military Aviation & Space Flight
Topic: SpaceX - Tests, Launches, Developments - 2022
Replies: 227
Views: 28680

Re: SpaceX - Tests, Launches, Developments - 2022

And Ship 24 just got a static fire off…..

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by zanl188
Wed Aug 10, 2022 12:45 am
Forum: Military Aviation & Space Flight
Topic: SpaceX - Tests, Launches, Developments - 2022
Replies: 227
Views: 28680

Re: SpaceX - Tests, Launches, Developments - 2022

https://youtu.be/z0Ghy_k5VYU
-->

Starship Booster number 7 did its first static fire a couple of hours ago. Single engine.

https://youtu.be/z0Ghy_k5VYU

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by zanl188
Sat Aug 06, 2022 7:01 pm
Forum: Military Aviation & Space Flight
Topic: SLS / Orion - Tests, Launches, & Developments
Replies: 345
Views: 41275

Re: SLS / Orion - Tests, Launches, & Developments

https://youtu.be/K5ovFY175zo
-->

Artemis I preview…

https://youtu.be/K5ovFY175zo

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