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Re: Arcjet Motor



The Molniya orbit planned for AO-40 required two burns. I suppose that you
could mount two solid rocket engines 180 degrees apart.

73,

John
KD6OZH

----- Original Message -----
From: "Greg D." <ko6th_greg@hotmail.com>
To: <amsat-bb@AMSAT.Org>
Sent: Monday, 04 June 2001 17:46 UTC
Subject: Re: [amsat-bb] Arcjet Motor


> Could we do the orbit change in one burn, using a solid motor?
> Very reliable, light weight, good thrust.
>
> I'd still put the ArcJet on board, for tweeks.
>
> Greg.
>
>
> >From: sco@sco-inc.com
> >To: James Sharp <jsharp@psychoses.org>
> >CC: amsat-bb@AMSAT.Org
> >Subject: Re: [amsat-bb] Arcjet Motor
> >Date: Mon, 04 Jun 2001 11:37:17 -0400
> >
> >At 03:30 AM 6/4/2001 , you wrote:
> >> >
> >> > The arcjet motor uses simple fuel, that we can test ... here on
earth.
> >> > Perhaps the next satellite will be smaller than AO-40 and use the
> >>arcject
> >> > (if it works well on AO-40) as its only propulsion system?
> >> >
> >>
> >>That all depends on the orbital parameters we want versus what we'll get
> >>from the launch.  If we want a high inclination orbit, but get a launch
> >>into a GTO, the arcjet just isn't going to have the guts to move the
bird
> >>in a reasonable amount of time...but if we end up with a favorable
launch
> >>orbit and just need to tweak it, the arcjet will work just fine.
> >
> >I would rather take more time in moving the satellite (if the arcjet
would
> >work) instead of again risking the fact that we might blow up part of the
> >satellite using the same engine/fuel combination now on AO-40. I would
> >rather be "Safe" than "Sorry" ... even if it took longer to get to the
> >intended orbit.
> >
> >W4SCO
> >
> >----
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>
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