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To: Mr. Adrenaline who wrote (2157)3/10/1998 5:56:00 AM
From: Thomas  Respond to of 10852
 
Mr. A., Thanks for your contributions to this thread. Invaluable perspective. Looks like you picked a good basket for your eggs. I was caught off guard by this latest pop. It is funny, we had been talking about the likely pop once the ONSI merger closed, but had not considered that Bernie might add some spice into the pot by creating positive EPS to attract another universe of LOR buyers. He keeps us on our toes.

As for flywheel energy storage technology, I am a SATC holder and am interested in the technology. I am sure that you are right about the if it's not broke, don't fix it approach. I agree that the technology will be road tested in space under the guidance of (i.e. at the risk of) the government, long before it will ever see commercial application in space. I am not so up to speed on the technology, but would the technology be more risky to use on a LEO that is zipping around (possibly more likely to crash into something than a GEO)? Presumably the flywheel can only hold its power if the wheel's motion is not interrupted.

Thanks again for your contributions and for contributing to our satellite education ;-)
Cheers,
Thomas



To: Mr. Adrenaline who wrote (2157)3/10/1998 8:51:00 AM
From: dwight martin  Respond to of 10852
 
On the issue of flywheel batteries: Have you considered that the newest work in the area (that I am aware of, anyway) uses the flywheel both as a power source and as a momentum wheel for attitude control?



To: Mr. Adrenaline who wrote (2157)3/10/1998 9:25:00 AM
From: Valueman  Read Replies (1) | Respond to of 10852
 
Mr. A:

Speaking of that finite amount of fuel onboard, how much life does a sat like Agila II lose when they have to keep moving it a couple of degrees at a time to avoid interfering with Superbird sat?(notice how I made this Loral relevant--they own transponders on Agila II). I think they have moved from 144 to 146 and now will have to move some more. Is this a big drain on the fuel resources? Thanks for your input.



To: Mr. Adrenaline who wrote (2157)3/10/1998 9:49:00 AM
From: JMD  Read Replies (4) | Respond to of 10852
 
Mr. A, nothing wrong with your logic in comparing payback periods for the G* and I* constellations except for the assumptions that you have already correctly described as simplistic. The fact is that the two are not really competitors if they stick to their public plan as I* goes after the tasseled loafer set and G* goes after rural telephony. I suspect that things will unfold differently if there is not enough demand as the two will then go after one another's markets and G* should be able to underprice I* all day long and still make money. From all indications however, there's plenty of demand for both so I think the two will stay on independent paths.
Would very much appreciate your comment on MOT's announcement that I* will be using CDMA for its 2nd generation birds as it is so much 'kinder and gentler' on power usage than TDMA. I kinda think this is a big deal--how about you? Thanks for your post. Mike Doyle