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by zanl188
Wed Nov 23, 2022 11:11 am
Forum: Military Aviation & Space Flight
Topic: SLS / Orion - Tests, Launches, & Developments
Replies: 502
Views: 57660

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

Avartar2go .. these updates you post are awesome. Best thread on the site. Much thanks! I disagree. Info Avatar presents is commonly available elsewhere. To this opinion is added to spark debate. This in turn derails an update thread which was never intended for discussion. If you want discussion a...

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by zanl188
Tue Nov 22, 2022 11:57 am
Forum: Military Aviation & Space Flight
Topic: SLS / Orion - Tests, Launches, & Developments
Replies: 502
Views: 57660

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

Speaks volumes about those outlets that the most powerful rocket ever built, on its first flight, performed on or above expectations, the IUS completed its longest ever burn and on so many other ways it, the spacecraft itself has worked like a charm and they bang on about a couple of lift doors? Gi...

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by zanl188
Mon Nov 21, 2022 11:56 pm
Forum: Military Aviation & Space Flight
Topic: SLS / Orion - Tests, Launches, & Developments
Replies: 502
Views: 57660

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

NASA will host a media briefing at 5pm ET today, to review the Orion lunar close approach & burn. They should have HD video available by then as well, if not sooner. https://www.nasa.gov It's also been announced they have increased the bandwidth available from the Deep Space Network, and may be...

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by zanl188
Mon Nov 21, 2022 1:03 pm
Forum: Military Aviation & Space Flight
Topic: SLS / Orion - Tests, Launches, & Developments
Replies: 502
Views: 57660

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

And AOS! Nice shot of earth in a sea of black. An on time AOS speaks well for the accuracy of the burn completed moments ago.

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by zanl188
Mon Nov 21, 2022 12:37 pm
Forum: Military Aviation & Space Flight
Topic: SLS / Orion - Tests, Launches, & Developments
Replies: 502
Views: 57660

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

Another thing about “escape velocity”. You may want to have an abort capability, using the spacecrafts engine, after TLI. This would limit the amount of energy TLI could provide.

Honestly, I’m not sure if Orion has this capability. Early Apollo lunar missions did however.

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by zanl188
Mon Nov 21, 2022 12:30 pm
Forum: Military Aviation & Space Flight
Topic: SLS / Orion - Tests, Launches, & Developments
Replies: 502
Views: 57660

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

Francoflier wrote:
Ah, thanks. Got it. Just in time.


Glad to assist.

Pretty cool to see LOS on video!

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by zanl188
Mon Nov 21, 2022 12:28 pm
Forum: Military Aviation & Space Flight
Topic: SLS / Orion - Tests, Launches, & Developments
Replies: 502
Views: 57660

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

LOS = loss of signal
AOS = acquisition of signal

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by zanl188
Mon Nov 21, 2022 12:28 pm
Forum: Military Aviation & Space Flight
Topic: SLS / Orion - Tests, Launches, & Developments
Replies: 502
Views: 57660

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

And we have LOS. AOS, on the other side, in 34 minutes.

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by zanl188
Mon Nov 21, 2022 12:25 pm
Forum: Military Aviation & Space Flight
Topic: SLS / Orion - Tests, Launches, & Developments
Replies: 502
Views: 57660

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

I’m watching NASA channel on YouTube. About to see LOS.

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by zanl188
Mon Nov 21, 2022 12:12 pm
Forum: Military Aviation & Space Flight
Topic: SLS / Orion - Tests, Launches, & Developments
Replies: 502
Views: 57660

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

Great video shot at the moment with Orion, earth, and moon all in frame.

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by zanl188
Mon Nov 21, 2022 11:52 am
Forum: Military Aviation & Space Flight
Topic: SLS / Orion - Tests, Launches, & Developments
Replies: 502
Views: 57660

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

The speed at TLI is the escape velocity of the Earth, so around 25,000 mph. After the burn is complete, the vehicle is slowing at less than 1 g (32 ft/s per second) in the radial direction, as it remains within the Earth's gravitational field. But continues to have very high speed in the tangential...

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by zanl188
Sun Nov 13, 2022 7:47 pm
Forum: Technical/Operations
Topic: DC6 passenger window plugs
Replies: 1
Views: 1068

Re: DC6 passenger window plugs

Sounds like the gun port in the center of a C-47 pax window.

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by zanl188
Sun Nov 13, 2022 5:18 pm
Forum: Military Aviation & Space Flight
Topic: SpaceX - Tests, Launches, Developments - 2022
Replies: 337
Views: 42004

Re: SpaceX - Tests, Launches, Developments - 2022

As far as outing my friends at NASA, or elsewhere in the industry, there's obviously no way I would ever do that. If you want to call me a liar in the face of that, that's up to you. I would not post what I do here without being reasonably certain. Please read the forum rules. If you cannot / will ...

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by zanl188
Sat Nov 12, 2022 10:26 pm
Forum: Military Aviation & Space Flight
Topic: B-17 / P-63 midair
Replies: 2
Views: 1251

B-17 / P-63 midair

https://www.thedrive.com/the-war-zone/b ... as-airshow
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B-17 / P-63 midair at Dallas air show this afternoon, both aircraft down. B-17 lost its tail.

https://www.thedrive.com/the-war-zone/b ... as-airshow

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by zanl188
Fri Nov 11, 2022 2:41 pm
Forum: Military Aviation & Space Flight
Topic: C130H grounding
Replies: 16
Views: 3851

Re: C130H grounding

trex8 wrote:
So its more a US issue only if other operators arent engraving?


Depends where aircraft and/or props were sent for depot maintenance. If they went to Warner Robins then there could well be an issue.

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by zanl188
Sun Nov 06, 2022 6:52 pm
Forum: Military Aviation & Space Flight
Topic: SpaceX - Tests, Launches, Developments - 2022
Replies: 337
Views: 42004

Re: SpaceX - Tests, Launches, Developments - 2022

Avatar2go wrote:

We do know these things for other commercial programs, and from other vendors.
.


Maybe you could cite some examples. How is SpaceX competitor, Blue Origin, doing with their HLS proposal?

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by zanl188
Sun Nov 06, 2022 6:49 pm
Forum: Military Aviation & Space Flight
Topic: SpaceX - Tests, Launches, Developments - 2022
Replies: 337
Views: 42004

Re: SpaceX - Tests, Launches, Developments - 2022

But when I talk to people at NASA about this, they say they have information, but only SpaceX has the legal right to disclose it. They also say they feel the contract is too restrictive on that issue. They aren't allowed to discuss internal debate or disagreement with SpaceX either. So if there are...

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by zanl188
Sun Nov 06, 2022 2:56 pm
Forum: Military Aviation & Space Flight
Topic: SpaceX - Tests, Launches, Developments - 2022
Replies: 337
Views: 42004

Re: SpaceX - Tests, Launches, Developments - 2022

I'm not a contracts expert, however I am a US gov't contractor so I have some experience. It is my observation that SpaceX has a commercial services contract vs a build, provide design services for, a NASA concept type contract that we all remember from Apollo and Shuttle. As such SpaceX has legitim...

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by zanl188
Mon Oct 31, 2022 11:05 pm
Forum: Military Aviation & Space Flight
Topic: SpaceX - Tests, Launches, Developments - 2022
Replies: 337
Views: 42004

Re: SpaceX - Tests, Launches, Developments - 2022

Just out of curiosity Avatar2go. Who do you work for? I'm semi-retired, still do some consulting with schools on STEM programs. But I know people who work in the industry, mostly at NASA, but one or two at Blue, Aerojet, Lockheed, Boeing. I try to represent their viewpoint. They are discouraged fro...

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by zanl188
Mon Oct 31, 2022 10:53 pm
Forum: Military Aviation & Space Flight
Topic: United Launch Alliance - Tests, Launches, News, Developments
Replies: 251
Views: 47384

Re: United Launch Alliance - Tests, Launches, News, Developments

Then maybe you shouldn't have polluted the thread with your childish, garbage based anti Elon rant. With respect, the discussion began with a shot taken at ULA, about launching a horse into space. It went downhill from there and I played a role in that, no doubt. I gave a paper that established the...

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by zanl188
Mon Oct 31, 2022 11:46 am
Forum: Military Aviation & Space Flight
Topic: United Launch Alliance - Tests, Launches, News, Developments
Replies: 251
Views: 47384

Re: United Launch Alliance - Tests, Launches, News, Developments

Roadster has not been tracked since 2018. It's being tracked well enough to know it's orbit with precision, just like other NEOs. And to make these predictions, which aren't possible otherwise. And when it nears earth, it will be identified and tracked, like everything else. NEOs are not tracked ev...

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by zanl188
Sun Oct 30, 2022 8:33 pm
Forum: Military Aviation & Space Flight
Topic: United Launch Alliance - Tests, Launches, News, Developments
Replies: 251
Views: 47384

Re: United Launch Alliance - Tests, Launches, News, Developments

How else would it's location be known, or it's trajectory calculated. It's tracked by NASA as it periodically approaches Earth and Mars. As of Monday, the roadster was about 234 million miles from Earth and about 200 million miles from Mars, passing through a no-man’s land of outer space, according...

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by zanl188
Sun Oct 30, 2022 5:23 pm
Forum: Military Aviation & Space Flight
Topic: United Launch Alliance - Tests, Launches, News, Developments
Replies: 251
Views: 47384

Re: United Launch Alliance - Tests, Launches, News, Developments

The odds of collision with Earth are similar to other near earth objects (NEOs) with equivalent mass. Hence is now being tracked as a NEO. https://arxiv.org/pdf/1802.04718 Maybe I missed it, however I see nothing here that suggests Musks Roadster is being tracked as a NEO, and it appears to be unli...

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by zanl188
Sun Oct 30, 2022 3:53 pm
Forum: Military Aviation & Space Flight
Topic: United Launch Alliance - Tests, Launches, News, Developments
Replies: 251
Views: 47384

Re: United Launch Alliance - Tests, Launches, News, Developments

So if no payload will Bruno attempt to out Musk Musk? What might he launch? A horse would be cruel….. No, no stupid publicity stunts that pollute the solar system with space junk, which doesn't even follow the intended trajectory. That's entirely a Musk brand. ULA would use a dummy payload that wou...

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by zanl188
Sun Oct 30, 2022 11:43 am
Forum: Military Aviation & Space Flight
Topic: United Launch Alliance - Tests, Launches, News, Developments
Replies: 251
Views: 47384

Re: United Launch Alliance - Tests, Launches, News, Developments

ULA has announced the first Vulcan launch has been delayed to Q1 2023, at the request of the payload vendor Astrobiotics. But if not launched by then, Tory Bruno has said it will launch without payload, in order to meet the terms of their government contract. The first launch-ready BE-4 engine is n...

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by zanl188
Sat Oct 29, 2022 4:05 pm
Forum: Military Aviation & Space Flight
Topic: USAF VC-25B News and Discussion Thread
Replies: 328
Views: 58318

Re: USAF VC-25B News and Discussion Thread

Self-understood. But. It takes two to tango. Beyond all niceties and fluff, USAF can take Boeing to the letter of the contract, that's what I am saying. These things are not happening unilaterally, correct? So, from purely legalistic point of view, if there is a unilateral cancellation on the contr...

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by zanl188
Fri Oct 28, 2022 6:47 pm
Forum: Military Aviation & Space Flight
Topic: USAF VC-25B News and Discussion Thread
Replies: 328
Views: 58318

Re: USAF VC-25B News and Discussion Thread

Boeing is not going to cancel the VC-25B program. They took a risk on the fixed cost contract, thinking they could get it done. Then ran into contractor and labor issues, that in return resulted in extensive redesign. So now they have to eat the cost, and that's that. Calhoun said as much in the ea...

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by zanl188
Fri Oct 28, 2022 6:37 pm
Forum: Military Aviation & Space Flight
Topic: USAF VC-25B News and Discussion Thread
Replies: 328
Views: 58318

Re: USAF VC-25B News and Discussion Thread

At what point would Boeing consider scrapping the program? When the cost overruns exceed the PR and prestige value of the program. What, outside of bankruptcy filing, would allow a defense contractor, to wiggle out from a DoD order, duly signed and paid? USAF is an entirely different matter. Questi...

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by zanl188
Fri Oct 28, 2022 11:47 am
Forum: Military Aviation & Space Flight
Topic: Boeing Starliner News and Discussion Thread
Replies: 100
Views: 12983

Re: Boeing Starliner News and Discussion Thread

Avatar2go wrote:

I think Starliner needs missions beyond the ISS to the private space stations, to become profitable.


Boeing needs to get going, Blue Origin could beat them to that market at this rate.

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by zanl188
Fri Oct 28, 2022 11:38 am
Forum: Military Aviation & Space Flight
Topic: USAF VC-25B News and Discussion Thread
Replies: 328
Views: 58318

Re: USAF VC-25B News and Discussion Thread

SXDFC wrote:
At what point would Boeing consider scrapping the program?


When the cost overruns exceed the PR and prestige value of the program.

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by zanl188
Thu Oct 27, 2022 11:43 am
Forum: Civil Aviation
Topic: Boeing 747 Production/Delivery Thread - 2022
Replies: 379
Views: 102290

Re: Boeing 747 Production/Delivery Thread - 2022

Pontiac wrote:
What would be awesome would be having the insignia of every user on the nose of the last plane; must be 80+ airlines, private, etc..


Agreed. Plus a photo with N7470 / RA001 would be in order as well.

Too bad N7470 is no longer airworthy. A formation flyby of Mt Rainier would be cool too.

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by zanl188
Sun Oct 23, 2022 12:45 pm
Forum: Military Aviation & Space Flight
Topic: How to defend against slow unmanned strike vehicles?
Replies: 156
Views: 9147

Re: How to defend against slow unmanned strike vehicles?

Best way to defend against a cheap but effective weapon is an even cheaper defense. I would suggest to you: Area EMP generator, control/nav jammers, drone propulsion system disrupters (think barrage balloon’s, chaff launchers)….. If cost is not an object I would suggest human portable or light vehic...

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by zanl188
Wed Oct 19, 2022 11:47 am
Forum: Military Aviation & Space Flight
Topic: USAF Tactical Tanker
Replies: 87
Views: 7994

Re: USAF Tactical Tanker

bikerthai wrote:

Commercial airlines do the same. They may just be better at touch up and make it looks good.

bt


No, they don’t. Boeing patched up the design with the doublers - this wasn’t a damage repair.

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by zanl188
Wed Oct 19, 2022 2:31 am
Forum: Military Aviation & Space Flight
Topic: USAF Tactical Tanker
Replies: 87
Views: 7994

Re: USAF Tactical Tanker

The KC-135 is not and never was a commercial jet. True the KC-135 has a slightly smaller fuselage. But basically the design and construction is pretty much the same. bt Have you never seen one up close? Plywood floors and doublers around the aft fuselage - not exactly commercial grade. Plus vert an...

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by zanl188
Fri Oct 14, 2022 7:42 pm
Forum: Civil Aviation
Topic: Airbus Beluga at Orlando Sanford
Replies: 16
Views: 4045

Re: Airbus Beluga at Orlando Sanford

Bringing in a satellite for launch - Hotbird 13 G

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by zanl188
Fri Oct 14, 2022 5:58 pm
Forum: Military Aviation & Space Flight
Topic: SOFIA 747SP last flight?
Replies: 5
Views: 1940

Re: SOFIA 747SP last flight?

Isn’t Moffett where NASA’s C-141A has been sitting unflown for years? Ramp space may be less precious there than at Edwards.

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by zanl188
Fri Oct 14, 2022 2:29 pm
Forum: Military Aviation & Space Flight
Topic: SpaceX - Tests, Launches, Developments - 2022
Replies: 337
Views: 42004

Re: SpaceX - Tests, Launches, Developments - 2022

Crew 4 undocking from ISS coming up in about an hour….

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by zanl188
Thu Oct 13, 2022 12:50 pm
Forum: Military Aviation & Space Flight
Topic: SpaceX - Tests, Launches, Developments - 2022
Replies: 337
Views: 42004

Re: SpaceX - Tests, Launches, Developments - 2022

https://youtu.be/akRWCov_LSo

You may recall Tito was one of the first space tourists some 20 years ago on Soyuz.

Also SpaceX and NASA have waived off all Crew 4 undock windows for today due to landing site weather.
-->

Mr & Mrs Tito announce plans for around the moon trip on Starship: https://youtu.be/akRWCov_LSo

You may recall Tito was one of the first space tourists some 20 years ago on Soyuz.

Also SpaceX and NASA have waived off all Crew 4 undock windows for today due to landing site weather.

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by zanl188
Wed Oct 12, 2022 12:58 am
Forum: Military Aviation & Space Flight
Topic: An Impact That's Deep. NASA DART
Replies: 27
Views: 3073

Re: An Impact That's Deep. NASA DART

From the briefing, NASA clarified that the mission requirement was 73 seconds, but as they closed on the asteroid, their models predicted from a few seconds to multiple tens of seconds. So they feel like they got into the higher range at 32 seconds. Lots of observations and data yet to come. It wil...

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by zanl188
Tue Oct 11, 2022 8:44 pm
Forum: Military Aviation & Space Flight
Topic: An Impact That's Deep. NASA DART
Replies: 27
Views: 3073

Re: An Impact That's Deep. NASA DART

https://youtu.be/Zhzn0U2m5wQ
-->

NASA confirms. Orbit changed from 11 hours 55 minutes to 11 hours 23 minutes.

https://youtu.be/Zhzn0U2m5wQ

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by zanl188
Mon Oct 10, 2022 4:35 pm
Forum: Non-Aviation
Topic: Russian Invasion of Ukraine - *Discussion* Thread
Replies: 10330
Views: 768412

Re: Russian Invasion of Ukraine - *Discussion* Thread

https://youtu.be/9tQ1jYbhxNc
-->

Some evidence for a waterborne IED: https://youtu.be/9tQ1jYbhxNc

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by zanl188
Sat Oct 08, 2022 11:59 pm
Forum: Military Aviation & Space Flight
Topic: SpaceX - Tests, Launches, Developments - 2022
Replies: 337
Views: 42004

Re: SpaceX - Tests, Launches, Developments - 2022

The Intelsat Galaxy 33 + 34 mission today. Gives you an idea how far the drone ship is from the launch site... https://i2.paste.pics/440eb1f156f21a63100b50bc2e29b1d6.png?trs=9b2847ad0586aa5925a6aaf0407aceac767e82995fa34519e3e94b4d1272c2f5 Check out the view of the space jellyfish from the drone shi...

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by zanl188
Fri Oct 07, 2022 9:42 pm
Forum: Military Aviation & Space Flight
Topic: Rocket Labs - Tests, Launches, Developments
Replies: 43
Views: 9655

Re: Rocket Labs - Tests, Launches, Developments

https://www.rocketlabusa.com/missions/next-mission/

https://www.rocketlabusa.com/live-stream/


Orbit appears to be retrograde. Do we know why?
-->

Avatar2go wrote:
RocketLabs has another launch today at 12:09 CDT, for the Argos-4 satellite payload. They are now hitting a launch cadence of about one per month.

https://www.rocketlabusa.com/missions/next-mission/

https://www.rocketlabusa.com/live-stream/


Orbit appears to be retrograde. Do we know why?

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by zanl188
Thu Oct 06, 2022 8:06 pm
Forum: Military Aviation & Space Flight
Topic: SpaceX - Tests, Launches, Developments - 2022
Replies: 337
Views: 42004

Re: SpaceX - Tests, Launches, Developments - 2022

https://twitter.com/elonmusk/status/157 ... 28928?s=12
-->

Musk tweets video of Falcon 9 2nd stage deorbit burn. View point is from a recently deployed Starlink sat.

Unusual.

https://twitter.com/elonmusk/status/157 ... 28928?s=12

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by zanl188
Tue Oct 04, 2022 8:54 pm
Forum: Non-Aviation
Topic: USS The Sullivans Lists in Buffalo Naval Park
Replies: 4
Views: 1175

Re: USS The Sullivans Lists in Buffalo Naval Park

https://youtu.be/rrMGco9TySs
-->

A ship worth saving for sure….

If you haven’t heard the story: https://youtu.be/rrMGco9TySs

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by zanl188
Sat Oct 01, 2022 3:35 pm
Forum: Non-Aviation
Topic: USS Bonhomme Richard Fire: Sailor Acquitted
Replies: 13
Views: 1079

Re: USS Bonhomme Richard Fire: Sailor Acquitted

A good review. Every now and again upper ranks get a screw loose, and proceed with this sort of thing. US Navy has to blame someone I guess. Systemic failures on the part of the Navy were certainly responsible for the loss of the ship. You’d think a fire in the shipyard would have numerous firefigh...

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by zanl188
Sat Oct 01, 2022 12:04 pm
Forum: Military Aviation & Space Flight
Topic: SpaceX - Tests, Launches, Developments - 2022
Replies: 337
Views: 42004

Re: SpaceX - Tests, Launches, Developments - 2022

An altitude boost mission seems generally possible, but I wonder about an actual servicing mission on any of the capsules (or even Dream Chaser) since the Shuttle provided a large "platform" to anchor Hubble to during the work and I am not sure how suitable any of the current crewed or ca...

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by zanl188
Sat Oct 01, 2022 3:13 am
Forum: Non-Aviation
Topic: USS Bonhomme Richard Fire: Sailor Acquitted
Replies: 13
Views: 1079

Re: USS Bonhomme Richard Fire: Sailor Acquitted

viewtopic.php?f=10&t=1448975&hilit=Bonhomme+Richard
-->

Old thread regarding the fire: viewtopic.php?f=10&t=1448975&hilit=Bonhomme+Richard

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