Hi Bill,
It is certainly refreshing to see you, David, Joe, etal discussing
new ideas, and methods, designs for our future hamsats....Kudos to
Peter ESSA for their efforts..
I'm 90, and old man, but it gives me the same thrill I got 30 years
ago when I made my first amateur satellite contact...I am well aware
of the need for funds. but with the determination that all exhibit,
it will get done....
You can surely imagine the "pie in the sky" it was in those early years...
All, keep up the good work!!!
Aah but David, its a start along the lines you and I have been
trying to drum up interest. You gotta crawl before you walk. As you
know well, it's the way to start out in LEO (cheaper launch) and
then nudge it into MEO. I said before, it's gonna happen since it's
the obvious solution to getting to a better orbit. A lot to overcome
but there's work going on now to get there.
Did someone say that the new Delfi satellite will have some thrust
on board or was it a wishful dream on my part??
Regards...Bill - N6GHz
On 1/17/2012 11:42 AM, [email protected] wrote:
Thanks Joe.
What an exciting concept.
Having got really enthusiastic, I thought I would roughly calculate how
high one of these little rockets could raise the orbit.
Given that one rocket reload pack has
40 Newtons of thrust
and lasts for about one second
We have 40 Newton seconds of specific impulse.
The mass flow rate is 18.6g in one second or 0.0168kg/s
So.....the ISP (a bit vague here) is around 219 seconds (ave thrust / mass
flow rate / 9.81ms^2)
Which should get a 3.7kg satellite's apogee about..... 40km higher.
So...Not enough for P3E then
Oh well, not so exciting after all. Time for a beer.
73 David G0MRF
In a message dated 17/01/2012 03:56:37 GMT Standard Time,
[email protected] writes:
Has anyone seen this. I am surprised a shuttle mission permitted this
type of booster. From what I believed, safety concerns prevented most
types of boosters.
http://www.rocketryplanet.com/content/view/3706/30/#axzz1jgQ85qx1
--
Joe Leikhim
Leikhim and Associates
Communications Consultants
Oviedo, Florida
www.Leikhim.com
[email protected]
407-982-0446
_______________________________________________
--
Regards...Bill Ress
High Sierra Microwave
73, Dave, WB6LLO
[email protected]
Disagree: I learn....
Pulling for P3E...
_______________________________________________
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