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Interstage Communications?

Posted by: Ekkehard Augustin - Wed Aug 20, 2008 7:29 pm
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Interstage Communications? 
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Joined: Thu Jun 03, 2004 11:23 am
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Location: Hamburg, Germany
Post Interstage Communications?   Posted on: Wed Aug 20, 2008 7:29 pm
The recent failure of a Falcon 1 caused me a few thoughts. The first stage was too fast because of a remaining pressure when the stage seperation occurred - a pressure that low that it wasn't found by ground tests according to Elon Musk.

The solution obviously to applied is to remove that remainder somehow.

What about another alternative in such cases?

That the first stage is that fast in principle is not bad but positive - it might help to save propellant that then might be used later.

My thought is that the first stage permanently might inform the second stage and in particular the separation mechanism about the remaining pressure and the velocity of the first stage caused by that remaining pressure.

This way a separation could be avoided as long as it has to be expected that the fast first stage might hit or endanger the second stage. Also the firing of the engine of the second stage could be avoided.

The payload might reach the desired orbit if the systems controlling the path get the data also and store them until stage separation.

If this results in a remainder of propellant of the second stage then this remainder might be used to enable a landing that keeps the second stage in that intact that it can be reused - to some degree at least.

Perhaps the recent loss of a Falcon 1 could have been prevented this way.

What about it?

Dipl.-Volkswirt (bdvb) Augustin (Political Economist)

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