Jump to content


  • Content Count

  • Joined

  • Last visited

Community Reputation

722 Excellent


About MatterBeam

  • Rank

Profile Information

  • Location

Recent Profile Visitors

The recent visitors block is disabled and is not being shown to other users.

  1. This is from the latest ToughSF blog post. Read here: http://toughsf.blogspot.com/2021/03/fusion-highways-in-space.html Fusion Highways in Space A transport system that can get spacecraft to Jupiter in 10 days, but without a massive onboard reactor, using antimatter fuel or riding a gigantic laser beam? What we need instead is a Fusion Highway to connect the Solar System in unprecedented ways. The art above is by GrahamTG. It depicts a Bussard Ramjet, which is relevant as all the same components (collection scoop, reaction chamber, magnetic nozz
  2. A most excellent development. I assume this will include a Raptor analogue?
  3. The trouble is power density. Linear generators, as I mentioned in the post, are easy to install inside the spring arms, but they are much heavier for the power they deliver than a rotating generator, by a factor 10+. The issue is where to get that nuclear fuel. There's plenty on Earth's surface, and little anywhere else.
  4. Thanks for the explanation. I'm loving your mods by the way!
  5. I was doing a few calculations and I got some funny numbers. Something like the 'NEXT Ion Thruster - 0.625m' engine. It has an Isp of 6380s and a thrust of 2.1 kN. Engine power in the real world is equal to Isp * 9.81 * Thrust /2, so I get 65.7 MW of power. However, the part mass is only 200 kg. This means the power density is a whopping 328.6 kW/kg. This continues for all the electric thrusters. The 'VASIMR - 1.25m' engine has an Isp of 6000s and a thrust of 24.9 kN, meaning that it outputs 732.8 MW of power. Power density is at 732.8 kW/kg. For comparison, real world electric
  6. This is from the latest ToughSF blogpost: http://toughsf.blogspot.com/2021/01/moto-orion-mechanized-nuclear-pulse.html Moto-Orion: Mechanized Nuclear Pulse Propulsion The Orion nuclear pulse propulsion concept has been around for over six decades now. It is powerful and robust, but lacks the flexibility and features we expect from many more modern designs. Can we give it those additional capabilities? That cutaway is one of Matthew Paul Cushman’s amazing pieces. Basic overview of Orion William Black has plenty of great Orion a
  7. Technically, it is infinite propellant and not infinite Isp. Antimatter definitely beats ion propulsion, but anything with less energy density than that cannot do so... The photon rocket will likely look like a solar sail, except glowing hot at 3000K+ on one side.
  8. This is the most recent post on ToughSF: http://toughsf.blogspot.com/2020/11/nuclear-photon-rockets-flashlights-to.html Nuclear Photon Rockets: Flashlights to the Stars In this post, we will have a look at the concept of using a nuclear photon rocket for interstellar travel. They are an old concept that should theoretically be the ultimate form of relativistic propulsion. However, today they are unknown or unpopular. Why might that be the case? The image above is by David A. Hardy. The interstellar challenge
  9. @Terwin Both the tether tip and the payload can extend their own cables with maneuvrable drones on each end to prolong the rendezvous. Thing of it like a 'grappling hook' that aims itself at the main tether. You can also have a tether station with multiple tethers, so you have three or four tether tips to choose from in the space of a few minutes instead of a single pass. The ultimate evolution of this is the bicycle-wheel configuration, where a very large number of 'spokes' carry a circular rim. Alternatively, you can have multiple whole tether stations, separated by a few min
  10. From the original post: https://toughsf.blogspot.com/2020/07/tethers-all-way.html Space Tethers: Stringing up the Solar System All the methods we have used to reach space so far have been subject to the Tsiolkovsky rocket equation - propellant must be ejected and more and more of it is needed to go further. Art above is by Jullius Granada. What if we could break that equation with rotating orbital tethers? The tether I have worked with Kurzgesagt to write the following video on the topic of this post: https://www.youtube.com/watch?v=dqwpQarrDwk.
  11. I have added @zer0Kerbal as an additional author on the SimpleLife page on SpaceDock. Thanks for these up!
  • Create New...