Space Things

[wolffbite]

This thread has definitely blown my nips off with knowledge...

[x808drifter]

Originally Posted by bcj

The (air)ship structures are designed with specifically directional stress loading.
Impinging load points on the corners or in the middle will wad it up like tinfoil in seconds.

So much extra triangulation structure will need to be added, might as well build a submarine.

They should colab with SeaGate.
They are great at making light subs.

[Irace86.2.0]

Originally Posted by Ultramaroon

Winning mix of condescension and hubris. I regret engaging.

https://news.cgtn.com/news/2020-04-0...Yko/index.html

[JD001]

Originally Posted by Irace86.2.0

https://news.cgtn.com/news/2020-04-0...Yko/index.html

I would be really pissed off if it landed in my back garden..

[x808drifter]

Originally Posted by JD001

I would be really pissed off if it landed in my back garden..

Or on your house/car.

[Dadhawk]

Originally Posted by JD001

I would be really pissed off if it landed in my back garden..

If it lands in my back yard, I believe it becomes my property, so I'm OK with that. Landing on the house, well probably not so much.

[bcj]

I wouldn't feel comfortable being on the 50th launch.
Now you can build anything you like. I suppose. Don't get the why.

[Spuds]

Originally Posted by Dadhawk

If it lands in my back yard, I believe it becomes my property, so I'm OK with that. Landing on the house, well probably not so much.

I don't think that's true. Someone crashes their car onto your property, you don't have a totalled car.

[JD001]

Originally Posted by bcj

I wouldn't feel comfortable being on the 50th launch.
Now you can build anything you like. I suppose. Don't get the why.

Attachment 223200

Ahhhh.. a GT6.. Very nearly bought one, a Mk1 one owner, low mileage thing.. Didn't buy as it was too nice to use, belonged in museum.. Gawd knows whether it's still kicking about..

[Ultramaroon]

Originally Posted by Irace86.2.0

https://news.cgtn.com/news/2020-04-0...Yko/index.html

Here's a pretty good summary.



https://courses.cs.vt.edu/cs2104/Spr...calingLaws.pdf

[ichitaka05]

OMG… this is what happens when report has been dead, so if you need to report PM me direct instead of actually reporting.

WARNING TO ALL: If you gonna debate, debate like an adult & not like my 7-yo nephew. No need to do pointless jabbing, taunting or calling pointless names. From this post on, idc if you’re old member or new member, if you break this rule, I WILL get you an early holiday leave (for 1 month).

So I would recommend not coming to this thread drunk.

[bcj]

Getting the site back to a working condition would be appreciated greatly.

Almost X-mas ...

[Dadhawk]

Originally Posted by Spuds

I don't think that's true. Someone crashes their car onto your property, you don't have a totalled car.

Oh you are probably right but I like my version better.

[Irace86.2.0]

Originally Posted by Ultramaroon

Here's a pretty good summary.

https://courses.cs.vt.edu/cs2104/Spr...calingLaws.pdf

For clarification, I wasn't just pulling this out of my ass or something. Parachutes have been used since the 1970's to recover boosters for the US Space Shuttle program. Hundreds rocket boosters weighing around 100 tons have been recovered. My post of the China rocket booster was just to show that they are still in use, and the boosters seem to be strong enough for a parachute to guide them to the hard ground and have them pitched on the side of a ledge. I was proposing parachutes and a series of nets to make recovery easier and cheaper than fishing them out of the ocean. I don't think it is outlandish or hubris to consider something like that. The parachutes used below could theoretically hold almost 300 tons, so we are getting close to a 500 ton booster for SpaceX. The rocket boosters hit the water vertically, which could be the orientation of how it hits a netting system too. I'd imagine hitting a netting system at 50mph might be easier than hitting water, as far as loads on the booster's structure. I suppose the booster could hit a body of water too, but if it could hit a huge net first then recovery might be easier. It would be a big project to make, but if it reduced the cost over time then it might be worth it.

Each of the 136 ft (41 m) diameter, 20° conical ribbon parachutes have a design load of approximately 195,000 lb (88 metric tons/97 US tons) and each weighs approximately 2,180 lb (990 kg). Source