/sci/ - Science & Math

>>12699651
It IS Gateway. The HALO module that will be launched on a Falcon Heavy along with the PPE module is a big Cygnus.

https://www.americaspace.com/2020/11/23/northrop-grumman-completes-critical-review-for-gateway-halo-module/

>>12399040
Falcon Heavy was originally intended to be used a lot more than it has been, but later improvements to the Falcon 9 made the cheaper rocket capable of performing more of those missions.

>>12296436
>"That said, our journey to the moon is not yet possible on any commercial launch vehicle -- it's simple physics -- they just can't get there.
jej isn't Falcon Chubby launching half of Gateway and all the cargo resupply missions?

>>12296439
Whoops, missed a zero. You either need a 1GWe beam or 10N/kWe (superconducting magnet?) engines. I admittedly used a bunch of cheap math for this, but it works.
>10N lifts 1kg in Earth gravity
>Shuttle orbiter loaded mass = 110,000 kg
>horizontal SSTO = 0.9TWR (blatantly stolen from Rockwell Star-Raker astronautix page)
>100MWe = 100,000kWe
>(1,000,000N / 10m^s/2) / 110,000kg > 0.9 TWR

>>12265761
IIRC Vulcan was being dreamed up before Falcon Heavy flew. Oldspace is just slow.

You forgot falcon heavy bro

>>11880058
Nice payload, faggot.

>>11736835

>>11720705

>>11681967
>>11681968
Wrong.

How will oldspace ever recover?

>There are a lot of things one could buy in the aerospace industry for $146 million. One might, for example, buy at least six RD-180 engines from Russia. These engines have more than twice the thrust of a space shuttle main engine. Or, one might go to United Launch Alliance's Rocket Builder website and purchase two basic Atlas V rocket launches. You could buy three "flight-proven" Falcon 9 launches. One might even buy a Falcon Heavy launch, which has two-thirds the lift capacity of the Space Launch System at one-twentieth the price, and you'd still have enough money left over to buy several hundred actual Ferrari sports cars.

>Or, again, you could buy a single, expendable rocket engine.

https://arstechnica.com/science/2020/05/nasa-will-pay-a-staggering-146-million-for-each-sls-rocket-engine/

>>11587583
The dude made F9 the elder sister.

>>11125801
hop looks likely in december
but there will be a lot of testing in november