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Slideshow: Great Space Rovers

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Dave Palmer
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Platinum
Re: Sorry but No Go
Dave Palmer   11/25/2012 12:51:12 AM
It's worth recalling that the CSA's budget is around $300 million a year, about 1/60th of NASA's budget of about $18 billion.  And it seems to me that this project was done with at least one eye on terrestrial applications -- specifically, to help BRP (and other Canadian companies, presumably) to develop better consumer products, with the SL Commander being Exhibit A.

(By the way, that's why the SL Commander has a windshield; as the caption to the slide points out, it's based on work that BRP did for the Lunar Light Exploration Rover, but it's intended for use on Earth).

Since the CSA is part of Industry Canada, it makes sense for them to be promoting Canadian businesses. That's what Industry Canada is supposed to do, after all.  Imagine if NASA were part of the Department of Commerce.

While the CSA may be small, Canada has a larger space presence through a number of its private companies, including McDonald Dettwiler, mentioned in the article, which recently acquired SpaceSystems/Loral.  This model (a significant private sector presence, coupled with a smaller public sector, focused mainly on helping the private sector) seems to be one that some people would like to see the U.S. space program emulate.

(Oh, yeah, @Ann, or whoever picked the title for this article: great pop-culture reference).

mrdon
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Gold
Re: Sorry but No Go
mrdon   11/26/2012 11:00:17 AM
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ervin0072002, I noticed the holes and cabling as well. Maybe the intent behind these prototypes is to demonstrate Driveability Proof of Concept regarding rough terrain. Some of the designs look plain but in space functionality is what really matters.

mrdon
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Gold
Re: Sorry but No Go
mrdon   11/26/2012 11:05:58 AM
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NadineJ, I agree. Electronic Controls prototypes I've worked on were never designed for production use but for technology Proof of Concept. The cases were made of SLA material and looked like homebrew boxes but the electronics worked quite well under test. These rover designs definitely fit the category of "What If" just by their appearance.

NadineJ
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Platinum
Re: Sorry but No Go
NadineJ   11/26/2012 11:37:05 AM
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mrdon-thanks for agreeing with the point that I made.

mrdon
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Gold
Re: Sorry but No Go
mrdon   11/26/2012 11:55:04 AM
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NadineJ, Your point was right on target and you're quite welcome!

Ann R. Thryft
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Blogger
Re: Sorry but No Go
Ann R. Thryft   11/26/2012 11:59:15 AM
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Nadine, thanks for the Exploratorium links--great info and photos. Dave is right: these prototype rovers are eventually destined for space apps, but their testing will occur on Earth.

ervin0072002
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Gold
Re: Sorry but No Go
ervin0072002   11/26/2012 1:13:02 PM
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I am used to a different environment. My prototypes go through assurance testing and have to perform same as the product that goes into certification. there is a large list of things that can go wrong during lift-off as well as space operation.

mr_bandit
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Iron
What I would like to see
mr_bandit   11/26/2012 5:09:56 PM
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The problem with the rovers to date is the "all eggs in one basket".

I read about a concept in 1988 where you take a bunch of small "rovers" - think of the RC cars that can bounce all over the terrain or one of the small robots by Big Dog - and a "mother ship". Assume 100 of the small rovers per Mother. Assume 10..50 Mothers. The Mother would land with the small rovers, and act as a home base for re-transmitting signals, swarm coordination, and refueling (electrical power).

The rovers would be redundant - ie 10 would have lasers, 10 with soil analysis, 10 with a mass spec, etc. Mission control would give a target, the Mother would direct the right mix to the spot. Need more laser power? use more laser rovers.

The redundancy gives you a much higher success rate - you can easily lose 10% without degradation of the general mission.

So - I respectfully ask - what is the problem with this? Why not do it, esp on Mars? The Bouncy Ball rover delivery would work. We Have The Technology.

BTW - the "Flagstaff Meteor Crater" is closer to Winslow (20 miles) than Flagstaff (36 miles). Drove past it last week. Also stood on a particular corner in Winslow, AZ, such a fine sight to see.

Rob Spiegel
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Re: What I would like to see
Rob Spiegel   11/26/2012 6:02:23 PM
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Actually, this is a pretty good idea, Mr_bandit. Not sure it would be as cost effective as the current rover. But maybe it would, With smaller rovers, there would be less of a chance of malfunction since it would be spread across multiple units.

Dave Palmer
User Rank
Platinum
Re: Sorry but No Go
Dave Palmer   11/26/2012 6:30:40 PM
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@ervin0072002: I think this is a difference of terminology.  When they say "prototype," think "proof of concept." Actually, even that might be too strong of a term.  The CSA doesn't have the means to put one of these on the Moon or Mars, even if they wanted to.  These are basically just show and tell pieces that will hopefully benefit Canadian companies. 

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