[amsat-bb] Re: Path to HEO

[g0mrf at aol.com]

Hi Stefan.

No reason at all why a satellite can not be transferred from LEO to a 
GTO style orbit.

A definate advantage would be to have the LEO orbit the same 
inclination as the wanted 'GTO' orbit as it uses less fuel.

A consideration in the overall design would be to allow for the long 
passage through the radiation belts.

Of course apogee 12000km and perigee 500km is a neat compromise.

73

David


-----Original Message-----
From: Stefan Wagener <wageners at gmail.com>
To: George and Cheryl Abbott <ka1ajf at cox.net>
CC: AMSAT BB <Amsat-bb at amsat.org>
Sent: Sun, 28 Apr 2013 21:16
Subject: [amsat-bb] Re: Path to HEO


I always thought that to get to a suitable HEO you need to start at a
suitable GTO and not LEO.

I guess they forgot to mention that at the conference? So it doesn't 
matter
what the propulsion is unless you start at the right orbit it is not of
much use. Getting to GTO is the money issue. No free rides to GTO.

In addition, doesn't the process getting from GTO to HEO require some 
form
of rapid acceleration? If yes, ion engines and solar sails are out.

Thoughts?

Stefan, VE4NSA




On Sun, Apr 28, 2013 at 2:05 PM, George and Cheryl Abbott 
<ka1ajf at cox.net>wrote:

> Great Job!73 to all. George, W1GMA.QTH about 20 south west of the 
Roger
> Williams Park Zoo.
>
> -----Original Message----- From: Lizeth Norman
> Sent: Sunday, April 28, 2013 2:35 PM
> To: Nick Pugh
> Cc: Amsat-bb at amsat.org
> Subject: [amsat-bb] Re: Path to HEO
>
>
> Sign me up. Sounds like the next big thing.
> 73 de Norm n3ykf
>
> On Sun, Apr 28, 2013 at 2:14 PM, Nick Pugh <quadpugh at bellsouth.net> 
wrote:
>
>  I have just returned from a satellite conference and I think new
>> technology
>> will now give us a path to HEO. Challenging  of course but for the 
clever
>> doable. Please take a look at a ~ 2 minute video that tells how
>>
>>
>>
>> 
http://www.youtube.com/watch?**v=TpGnxlZC8Hs<http://www.youtube.com/watch?v=TpGnxlZC8Hs>
>>
>>
>>
>>
>>
>>
>>
>> Thanks
>>
>>
>>
>> nick      ARS K5QXJ EM30xa 30.1N 92.1W
>>
>> Office   337 593 8700
>>
>> Cell      337 258 2527
>>
>>
>>
>> Helping UL become a world Class Engineering  and Educational School
>>
>>
>>
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