Author Archives: johnhare

johnhare

About johnhare

I do construction for a living and aerospace as an occasional hobby. I am an inventor and a bit of an entrepreneur. I've been self employed since the 1980s and working in concrete since the 1970s. When I grow up, I want to work with rockets and spacecraft. I did a stupid rocket trick a few decades back and decided not to try another hot fire without adult supervision. Haven't located much of that as we are all big kids when working with our passions.

Falcon Heavy Skepticism

The long anticipated Falcon Heavy should fly towards the end of this year. Many people seem to believe that this launcher is going to be the answer to the PorkLauncher, big private payloads, launch costs, reliability, and all the other … Continue reading

Posted in Uncategorized | 11 Comments

Roton as Booster/LES/Shroud Recovery

This idea has been kicked around in pieces before, though I think this particular combination may be unique. Mount a Roton blade system on top of the shroud of a standard launch vehicle. Power it up before launch such that … Continue reading

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A Possible LEO Clearing Market

One of the growing concerns is the amount of small debris in LEO. The big stuff can be tracked and mostly avoided, but the small stuff is a more difficult proposition. A hundred gram shard at some LEO closing velocities … Continue reading

Posted in Uncategorized | 16 Comments

Failed Visions (mine)

I just read that XCOR laid off its’ remaining employees with a few core people kept on contract. This is another shot against the vision that I have blogged and commented about many times. The concept being that sub-orbital RLVs … Continue reading

Posted in Uncategorized | 22 Comments

Mars Barges

One of the incredible mentions in the Elon Mars concept was a thousand spacecraft in orbit ready for the Mars launch window to open. I’m not sure how many launch windows down the road this would be, I assume several … Continue reading

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Stratolaunch as Falcon9 Competition

The roll out of the Stratolaunch aircraft started a considerable amount of criticism on the sources that I read. Basically it has the same problem as the White Knight, superb aircraft with no viable rocket to mate up with. I … Continue reading

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Sending the Probes

Before embarking on settlement and exploitation missions, the distant targets need to be investigated. It would be sad to spend major bucks developing one NEO only later to learn that another one has better concentrations of whatever you are interested … Continue reading

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A Personal Space Program

Assuming that I reached the point of controlling enough resources to do a serious space effort, how would I do it? Note that the question is, “how would I do it?” Enough resources to me means that I either own … Continue reading

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Quantifying Public Support

We quite often have someone suggest that some program or destination should be pursued because it has public support. Or that some project should be started to increase public support. My questions are, “what is public support exactly?” and “how … Continue reading

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Fairing Hat Trick

It would appear that the first stage operational reusability is happening for multiple companies in the near future. The next step seems to be fairings and second stages coming back for more employment. It seems to me that there may … Continue reading

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