Author Topic: "ARCARES" rocket - hybrid engine space vehicle  (Read 6734 times)

Offline Nautilus

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"ARCARES" rocket - hybrid engine space vehicle
« on: 10/28/2009 10:08 pm »
"ARCARES" rocket - hybrid engine space vehicle

Waiting for the launch of ARCA rocket (GLXP competition) which seems to never come and seeing that ARES was successfully tested today, I decided to post the current message, hoping that it could be of some use for ARCA and various amateur rocket builders. 

The similarity between the shape and solid - liquid distribution along the length of the space vehicle made me associate the entire ARES rocket with a hybrid engine I have found in Wikipedia. Essentially, someone can build a fiberglass space vehicle having the shape of ARES but being, in fact, just a single stage rocket with the liquid fuel (oxidizer) tank, ex. hydrogen peroxide, positioned where ARES' second stage should be and the cylinder containing the fuel, ex. polyethylene, put in place of the ARES' solid booster (see the picture).



REFERENCES:
1) http://www.nasa.gov/mission_pages/constellation/ares/flighttests/aresIx/index.html
2) http://en.wikipedia.org/wiki/Hybrid_rocket
3) http://www.arcaspace.ro/
« Last Edit: 10/28/2009 10:17 pm by Nautilus »

Offline khallow

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Re: "ARCARES" rocket - hybrid engine space vehicle
« Reply #1 on: 10/29/2009 07:13 pm »
Interesting. Hybrids do tend to be long. I don't know how the thrust and ISP compare.
Karl Hallowell

Offline cheesybagel

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Re: "ARCARES" rocket - hybrid engine space vehicle
« Reply #2 on: 11/01/2009 06:18 pm »
Hybrids usually have more volume than solids, more or less the same ISP, but can be throttled.

Offline RanulfC

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Re: "ARCARES" rocket - hybrid engine space vehicle
« Reply #3 on: 11/18/2009 11:23 pm »
Dpends on the hybrid actually. The current work with paraffin hybrids suggests that once they are scaled up, (if they can be scaled up large enough) will be slightly larger than solids but having a higher thrust and ISP. (Still short of liquid motors)

Randy
From The Amazing Catstronaut on the Black Arrow LV:
British physics, old chap. It's undignified to belch flames and effluvia all over the pad, what. A true gentlemen's orbital conveyance lifts itself into the air unostentatiously, with the minimum of spectacle and a modicum of grace. Not like our American cousins' launch vehicles, eh?

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