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Old 09-25-2015, 11:54 PM   #41 (permalink)
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I'm sure that is a different truck, if you look at the still, you see a hydraulic wheel motor (with two big fluid hoses). I don't know hydraulics well, but constantly moving fluid through hoses makes me think they don't have the same dynamic range as an electric.

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Old 09-26-2015, 12:32 AM   #42 (permalink)
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That is Tedious to watch! It needs some computer controls to keep the cab level with equal weight on all wheels...or something like that.
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Old 09-26-2015, 01:34 AM   #43 (permalink)
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You think it's boring to watch? What about to drive? That is the most un-scenic route I've ever seen. And slow.

Shadow Hawk series of Super Terrain Vehicles:




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Old 09-26-2015, 08:01 AM   #44 (permalink)
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required uniform for the driver:
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Old 09-26-2015, 08:57 PM   #45 (permalink)
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Quote:
Originally Posted by P-hack View Post
I'm sure that is a different truck, if you look at the still, you see a hydraulic wheel motor (with two big fluid hoses). I don't know hydraulics well, but constantly moving fluid through hoses makes me think they don't have the same dynamic range as an electric.
You might be right, but it has so many similarities that it could easily be the same rig just been changed over time. More than once someone thought I got a new rig because mine changed so much since the last time they had seen it.
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Old 09-26-2015, 09:06 PM   #46 (permalink)
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You think it's boring to watch? What about to drive? That is the most un-scenic route I've ever seen. And slow.
The fun is in the challenge of getting through, and slow.... well it is called rock crawling
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Old 09-26-2015, 09:42 PM   #47 (permalink)
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Unlike that "King Of The Hammers" craziness !
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Old 09-26-2015, 11:19 PM   #48 (permalink)
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You might be right, but it has so many similarities that it could easily be the same rig just been changed over time.
Could be, but the key change as it relates to the op and other speculation here is the use of electric motors on the wheels and battery storage (the hydraulics just operate arms and cylinders). But again I haven't seen that configuration actually climb anything.
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Old 09-26-2015, 11:44 PM   #49 (permalink)
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Do you mean like this [turn down speakers]?

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Old 09-27-2015, 01:15 AM   #50 (permalink)
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now marketers are a sly bunch, but you will note they do NOT show it climbing up much of anything, and they don't reveal a top speed. In fact that rock in the still was selected deliberately as the still, but they could have easily picked it up there in the first place, footage missing, and all the climbs are traversed, and with a head start usually.

So, looking for actual climbing video, not marketing, not spiders dancing in the parking lot. And looking for top speed to boot. With no gears, whatever that means.

I have no doubt electric drive can make a good rock crawler, but the gearing will make 30mph a challenge, if at all possible without unobtanium. It needen't be a spider, just any vehicle that can climb straight up a boulder from a stop and then go 30mph once it is up there, and do it for 30 minutes, etc. Smaller is probably better, but that thing is a little top heavy on pitching with a rider it seems.

even the rc sized crawlers, with light weight and high revs, basically go walking speed when wide open, that is the sort of gearing involved with crawling.
Typical Crawler top speed - RCCrawler

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