[amsat-bb] Re: All Satellites
ve9qrp at gmail.com
Fri Sep 25 21:34:14 PDT 2009
On Fri, Sep 25, 2009 at 7:34 PM, <G0MRF at aol.com> wrote:
> In a message dated 25/09/2009 22:10:17 GMT Standard Time, m5aka at yahoo.co.uk
> Hi Bill,
> You're right, the potential is there for a 3U CubeSat that can achieve an
> apogee > 1400 km.
> We'd need 1U of that to house the linear transponder but as you say the
> rest could be used for the propulsion system.
> As yet, as far as I'm aware, no-one has actually demonstrated a working
> propulsion mechanism that can fit in 2U but I'm convinced this is possible.
> The launch costs for a 3U CubeSat into 700 km LEO are well within the
> reach of the Amateur community, our challenge is to develop a means of raising
> the apogee.
> 73 Trevor M5AKA
> Hi Trevor.
> There is a propulsion system being developed for cubesats using a hydrazine
> mono propellant that uses catalytic decomposition to produce a large
> volume of hot gaseous products.
> If initial claimed results can be repeated in production, then that unit
> can be propelled from typical LEO up to 1400km circular or 2000km eliptical.
> It's based on a 3U structure. It's not MEO, but its a lot more fun than
> David G0MRF
Oh, I love this idea, and I put my vote in for the elliptical. (Not
that I have a vote :-) The occasional massive footprint would be
really neat to play with, and justify all our overkill antenna arrays.
I'm guessing we'd need the 3U format for linear transponder anyway,
since the requisite solar panel area is not available in 1U.
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