Author Archives: johnhare

ULA Stage Recovery

George had a thought in comments on the last post that could easily be relevant. If SpaceX starts reusing the Falcon9 cores, which are the cheapest cores in current production, then how much more financial sense would it make to … Continue reading

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Pressure On SpaceX

Sometimes seemingly unconnected events can have an effect out of proportion to what seems rational. In this case SpaceX, having no connection to Orbital or Virgin Galactic, will have its next flight partially judged on the misfortune that fell on … Continue reading

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Humble Arrogance For an Inspiring Mission

The Orion flew today for the first time. The hype and hoopla surrounding this flight was about what you would expect from an agency that is spent so many years and billions getting to this point. If you listen to … Continue reading

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Suborbital VS Orbital

I did a post on this a few years back, but couldn’t find it to repost. A commentor in response to one of Rand Simbergs’ articles brought up (again) the old orbital is 8 times the velocity of suborbital and … Continue reading

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Capsule Que Pasa

I was jolted a bit when I read the amounts and requirements for commercial crew last week. Not that Boeing got more than SpaceX, but rather that $6.8B is budgeted for a developing a couple of commercial capsules to fly … Continue reading

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VTSL Vehicle

I got into a discussion the other day about the Blue Origin/SpaceX barge landing issue. I suggested that it was very difficult to write such a comprehensive patent that there was no way to design around the restrictions. As an … Continue reading

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Asymmetrical Payload Boost

Paul451 made a suggestion on the last post that triggered a thought on boosting payloads on many current vehicles at a reasonable cost. I claim 50% credit for this concept with Paul getting the rest. He suggested that the tanks … Continue reading

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Asymmetrical LV

There are several limitations on┬áthe ability to expand a launch vehicle past certain sizes. One of them is tank diameter. On the smaller launchers, diameter limits might be dictated by available pipe sizes. A step up from there and tank … Continue reading

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SpaceX and Sea Launch

Another speculative thought. Suppose we have all been assuming that Falcons will try to land on a barge at sea or accept the payload penalty of RTLS, when all the tests have actually been in support of a launch at … Continue reading

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Falcon III H (R)

The vehicle SpaceX lost the other day has been described as a Falcon IX R with three engines. It is a bit intriguing to speculate on the purpose of three engines as opposed to the nine of the full up … Continue reading

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