Recent Posts

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Engineering / Re: Voyager 1
« Last post by Panzergranate on June 08, 2024, 05:46:56 pm »
If I remember right, it's running on Motorola 8 bit 6800 CPUs, which were the cutting edge of CPU technology, back then. Other options were the Intel 8080 and Signetics 2650, both of which are a tad lame, by comparison. The 2650 is rumoured to use female logic (my first computer (in 1977) used a 2650 CPU).
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Engineering / Re: Interesting stuff about SpaceX Starship (hate the name)
« Last post by Nemesis on June 06, 2024, 09:19:47 am »
IFT 4 has happened.

Super Heavy flew with only 32 engines ignited and while there were some issues it did manage the ocean landing. 

Starship lost some tiles and the one forward flap definitely burned through and lost a significant amount of the flap they kept control all the way down and also achieved a ocean landing after doing the flip back burn.  For much of the reentry they seem to have had only the camera aimed at that flap working and it became largely covered with debris limiting what could be seen (though at times that cleared up) the lens also cracked and according to one report the lens was totally lost eventually but even after that there were images showing the substantial missing material on the flap and the flaps continued CONTROLLED moves. 

How well each of them did on the ocean landing is not clear yet.

I'm sure the naysayers will be going on about how much of a failure this is but I suspect that they will be saying that the 1st time a booster or starship is hanging from the chopsticks after a catch so I won't take that too seriously.

Well done SpaceX.
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Engineering / Re: Interesting stuff about SpaceX Starship (hate the name)
« Last post by Nemesis on June 06, 2024, 04:39:29 am »
The Starliner computer issue was a power supply fault and they swapped in a spare computer.  The next delay was a helium leak and they not only didn't solve it but the capsule has not made it to the station yet and TWO MORE helium leaks have developed.  They have been stopped apparently by disabling the leaking valves. 

Not inspiring confidence in me.  They couldn't pay be enough to ride on it. 
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Engineering / Re: Voyager 1
« Last post by knightstorm on June 04, 2024, 01:05:46 am »
How far could it go if we could have built it with today's tech?  Could we have made it smaller and potentially faster, or could we have used the reduced weight to give it more plutonium.  Its  estimated that after 2035 there won't be enough power to run any of the instruments.
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Engineering / Re: Interesting stuff about SpaceX Starship (hate the name)
« Last post by knightstorm on June 04, 2024, 12:57:39 am »
The starliner is starting to feel uncomfortably similar to the Apollo 1.
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Engineering / Re: Interesting stuff about SpaceX Starship (hate the name)
« Last post by Nemesis on June 02, 2024, 01:57:08 pm »
Starliner delayed till June 5th (the 1st delay was a ground computer issue, this delay may be a continuation of that, I haven't seen a why yet)

Starship IFT4 delayed till June 6th,  Why?  I don't know. 

Looks like in May SpaceX had at least 15 launches.
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General Starfleet Command Forum / Re: Learning Klingon with Rosetta Stone.
« Last post by Starfox1701 on May 31, 2024, 05:21:07 pm »
well how about that
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Engineering / Re: Interesting stuff about SpaceX Starship (hate the name)
« Last post by Nemesis on May 28, 2024, 05:49:23 pm »
Looks like during IFT3 the hot staging came off and the controls were programmed with that mass in place couldn't adjust and that is why the grid fins seemed unable to control the booster.  Also not all the engines ignited on schedule once again due to fuel filter blockages.  Hopefully this time the fixes will work.   They plan to eject the hot staging ring.  The ring is about 9 tons (I knew it was heavy but didn't think it was that heavy) which explains why its loss threw off the programming. 

Starship is not going to do an in space Raptor restart but does plan to do the "ocean landing" like the booster and the early Falcon 9 landing tests.  The vents for attitude control have both been increased in number and have heating elements to stop the freezing that caused the tumble last time.

This may be the last "block 1" flight.  The next booster/starship combo may be of upgraded "block 2" design. 

Lets hope for a flawless flight.
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Engineering / Re: Interesting stuff about SpaceX Starship (hate the name)
« Last post by Nemesis on May 24, 2024, 11:51:21 am »
Seems that the date may be/may have slipped to June.  Looks like the IFT3 mishap report hasn't been filed with NASA yet.

IFT 4 now seems to be June 1st.

There has been a simple mention of the construction of another megabay.  Not an announcement just a mention. 

UPDATE:
Starliner is now also June 1st time about 12:25PM.  The launch window for IFT4 ends at noon.  I guess that if IFT4 launches that Starliner won't have many watching whether it launches or not.

Another Update:

Starship delayed to June 5th (Wednesday) again launch window ending at noon. 
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Engineering / Re: Interesting stuff about SpaceX Starship (hate the name)
« Last post by Nemesis on May 22, 2024, 02:55:19 pm »
Seems that the date may be/may have slipped to June.  Looks like the IFT3 mishap report hasn't been filed with NASA yet.

IFT 4 now seems to be June 1st.

There has been a simple mention of the construction of another megabay.  Not an announcement just a mention. 

UPDATE:
Starliner is now also June 1st time about 12:25PM.  The launch window for IFT4 ends at noon.  I guess that if IFT4 launches that Starliner won't have many watching whether it launches or not.
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