(DE) Isar Aerospace Test-flight today
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The second generation of Spectrum will be larger and could potentially be reusable. As I understand this, the current version is simply too weak for all the extra stuff that reusability requires.
There are other companies tasked with the development of reusable rockets for ESA, though.
https://europeanspaceflight.com/esa-selects-four-companies-to-develop-reusable-rocket-technology/
Hm, so Ariane is actually hoping to tests their first reusable prototype this year, but given it's Ariane, I'll hold my expectations for now. Isars second rocket is supposed to be bigger, but not clearly stated as being reusable at this point...
Guess we'll see -
Why not make it reusable though? If you go and design a rocket from scratch today, that seems a must to me. It doesn't need to be a star ship competitor, but at least try to be on par with Falcons, New Shepherds etc...
Because the rocket equation is brutal.
A rocket is almost entirely fuel some structure and a minuscule amount of payload. If you want to save fuel for for relanding you need to take less payload or accept a lower orbit.If we look at Falcon 9, the payload to geostationary transfer orbit^* goes from 8,300 kg when expended, to
5,500 kg when landing on a barge or
3,500 kg when landing on the launch site.* meaning the payload needs an additional stage to enter geostationary orbit
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Frist test flight, which is expected to explode anyways.
But let's hope, that we are heading towards a good European satellite delivery method.
Also, there are several other European companies building rockets. Might want to take a look at them, too.
People are monitoring the launch over at https://forum.nasaspaceflight.com/index.php?topic=62618
And there's a person attempting to live-stream the launch at https://www.twitch.tv/realairgel (stream will start just before launch)Launch is supposed to happen about an hour from now.
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@[email protected] When you submit non-English posts, please provide a readable (machine) translation too.
Changed it as requested, but with translations being available in modern browsers this seems just to be a tedious chore with almost no use. Will keep me from posting articles in future.
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Because the rocket equation is brutal.
A rocket is almost entirely fuel some structure and a minuscule amount of payload. If you want to save fuel for for relanding you need to take less payload or accept a lower orbit.If we look at Falcon 9, the payload to geostationary transfer orbit^* goes from 8,300 kg when expended, to
5,500 kg when landing on a barge or
3,500 kg when landing on the launch site.* meaning the payload needs an additional stage to enter geostationary orbit
I'm aware, still throwing away you rocket every time is neither financially nor ecologically sustainable. The fact that SpaceX has managed to lower the cost per kilo to orbit that much proves it
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Changed it as requested, but with translations being available in modern browsers this seems just to be a tedious chore with almost no use. Will keep me from posting articles in future.
Thank you!
As to your criticism: Not everyone uses a browser with translations. Not everything survives machine translation. We recently had a Polish post with the term "anti-Musk alliance" in it. DeepL translated that into English as "anti-Muslim alliance", while Firefox came up with "anti-muscle alliance". Kind of a big difference, hence I think the rule still makes sense.
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Frist test flight, which is expected to explode anyways.
But let's hope, that we are heading towards a good European satellite delivery method.
Also, there are several other European companies building rockets. Might want to take a look at them, too.
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Frist test flight, which is expected to explode anyways.
But let's hope, that we are heading towards a good European satellite delivery method.
Also, there are several other European companies building rockets. Might want to take a look at them, too.
The launch is scrubbed due to weather. They will try to figure a new launch window.
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The launch is scrubbed due to weather. They will try to figure a new launch window.
Damn. Would have loved to see it skyrocket.
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Sadly scrubbed for today.
Not surprising as it has been really windy here the past few days (I live in a neighbouring town, and it's been a little uncomfortable even driving over bridges in cars).Damn. Would have loved to see it skyrocket.
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