Category Archives: Uncategorized

Seven Core RLB

In the discussion on Jons’ last post it was mentioned that seven cores could be used in the VTVL booster technique with the outer six semi-permanently attached as a single unit. If they are close to gas-n-go on landing, then … Continue reading

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Long Range Stage Recovery

Recovering stages from far down range is likely to be on the agenda for several companies in the next decade or so. RTLS for the boosters or a first stage is a different proposition than collecting something from Mach several … Continue reading

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The Return of FalconV

In the last several weeks two companies have landed boosters that have been to space. The boost back RTLS with VTVL is now established as a demonstrated capability. What’s next? The boost back gets the upper stage(s) to space with … Continue reading

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SBSP for electric aircraft, cont.

Chris speaking. Along with Jon, I’ve given a lot of thought to this specific application of space-based solar power (SBSP). Yes, there are thousands of aircraft in the air at any one time, but I find this to be one … Continue reading

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Anti-radiation Biological Countermeasures: Amifostine

Whenever human spaceflight comes up, inevitably someone mentions radiation. Personally, I think the radiation risk is WAY overblown. “Compound conservatism” is rampant, I believe, and gets worse as time goes on and people keep recycling the same sources, adding some … Continue reading

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Simple SPS ??

Reading about the drawbacks of conventional Solar Power Satellites and the comments in response to Chris eventually triggered an idea, or perhaps a memory of something hinted at in something I read once. I’m somewhat less certain of complete originality … Continue reading

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Mars surface shielding from radiation

I want a short little aside here to talk about a little pet peeve of mine: People talk as if Mars’ atmosphere does basically nothing to reduce the radiation dose as compared to free space. This is definitely not true, … Continue reading

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Minimum viable microwave-based space-based solar power system

The Solomon Islands pay almost $1/kWh for electricity. You could provide beamed solar power to them on a demonstration basis for a fraction of that price. Unfortunately, being in the ocean is one of the worst places for beamed power, … Continue reading

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Power beaming

Power beaming is clearly central to space-based solar power concepts. Here I will provide a quick overview of my understanding of power beaming, the various equations involved, typical example calculations. If power beaming were efficient and cheap, I believe space-based … Continue reading

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Space-based solar power preview

I will start out with a look at space-based solar power, including both microwave and laser based beaming approaches as well as seeing if there’s some use that can be had for that power that doesn’t involve beaming it. This … Continue reading

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