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Trucks Down Under
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Jul 10, 2019 08:35:31   #
Thorny Devil
 
Last year I posted some photos of Australian trucks which seemed be of interest to some UHH members so here are some more, some that I captured near where I live and others that I have seen during my travels.


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Tri-drive prime mover, quad trailer, 86 wheels on the road.
Tri-drive prime mover, quad trailer, 86 wheels on ...
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Another 86 wheeler.
Another 86 wheeler....
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Jul 10, 2019 08:43:41   #
BlueMorel (a regular here)
 
I enjoyed this set! Don't see many of those multi-trailer trucks on our freeways - too crowded. Land looks flat enough you could just set the cruise control and sit back!

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Jul 10, 2019 08:47:57   #
sippyjug104 (a regular here)
 
Great images and I can't imagine how much skill it takes to safely drive and maneuver a 'Road Train'. I watched an episode on television about how specialized these machines are for they suck in so much air that is loaded with dust from the fields that scrubbing the air entering the engines is quite a mechanical challenge.

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Jul 10, 2019 08:50:32   #
Thorny Devil
 
BlueMorel wrote:
I enjoyed this set! Don't see many of those multi-trailer trucks on our freeways - too crowded. Land looks flat enough you could just set the cruise control and sit back!


Thanks for looking Blue Morel. The roads are not all flat and with a gross weight of up to 170 tonnes (187 US tons), the drivers are soon hard at work working the gearbox.

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Jul 10, 2019 09:01:16   #
tommy2
 
Very impressive! Noticed the designation,"Tri Drive" on the fourth photo - means there are three (extra?) sets of driven wheels? Also wonder if theses trucks are allowed into densely populated areas, etc. Thank you for posting.

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Jul 10, 2019 09:05:13   #
Thorny Devil
 
sippyjug104 wrote:
Great images and I can't imagine how much skill it takes to safely drive and maneuver a 'Road Train'. I watched an episode on television about how specialized these machines are for they suck in so much air that is loaded with dust from the fields that scrubbing the air entering the engines is quite a mechanical challenge.


Thanks for looking sippyjug104. You're right about the skill level. During my travels I have encountered many triple road trains on the road and it is a bit scary watching the last trailer wobbling around particularly when the road surface is uneven which most are. Dust is certainly a problem particularly on unsealed roads which many of these vehicles travel thousands of kilometres over. Note the engine air intakes are usually mounted above cab level and facing forward which helps to reduce ingesting dust. Great care must be taken to ensure that all pipes and connections on the air intake duct are properly sealed. The main engine air intake filter also has a pre-filter chamber which removes a lot of dust particles through centrifugal action as the incoming air is made to swirl around on its way to the filter media.

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Jul 10, 2019 09:09:54   #
lsaguy
 
Wow! Awesome shots. Glad those behemoths aren't on U.S. highways but they sure look cool. Thanks for posting them TD.

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Jul 10, 2019 09:17:14   #
RichardTaylor (a regular here)
 
Good set.

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Jul 10, 2019 09:21:10   #
kpmac (a regular here)
 
Unusual but very nice set.

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Jul 10, 2019 09:28:24   #
boberic (a regular here)
 
I wonder what the turn radius is for those trucks. I don't think they could manage ant city street. The only trucks that I see on US highways are tandems or semi's. Thanks for posting, never saw these before

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Jul 10, 2019 09:28:56   #
Thorny Devil
 
tommy2 wrote:
Very impressive! Noticed the designation,"Tri Drive" on the fourth photo - means there are three (extra?) sets of driven wheels? Also wonder if theses trucks are allowed into densely populated areas, etc. Thank you for posting.


Thanks for looking tommy. Yes Tri-Drive refers to the three sets of driven wheels on the prime mover. Each state has its own regulations restricting road train access to high population areas and on certain roads. Many of the more heavily populated regional centres have specified road train routes outside of which road trains may not operate. Usually there will be a staging or break down area set aside on the outskirts of major towns where one or more trailers will be disconnected to allow the vehicle to enter with a single trailer for deliveries.

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Jul 10, 2019 09:39:35   #
tommy2
 
Thorny Devil wrote:
...enter with a single trailer for deliveries.

Well, coming from the perspective of a highway bridge designer all I can say about the whole concept is, "VERY impressive".

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Jul 10, 2019 09:49:54   #
Thorny Devil
 
boberic wrote:
I wonder what the turn radius is for those trucks. I don't think they could manage ant city street. The only trucks that I see on US highways are tandems or semi's. Thanks for posting, never saw these before


Thanks for looking boberi. Yes a road train with three or four trailers does need a little more room than a unit with a single trailer but units with multiple trailers still track quite tightly.


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Jul 10, 2019 09:52:21   #
Thorny Devil
 
lsaguy wrote:
Wow! Awesome shots. Glad those behemoths aren't on U.S. highways but they sure look cool. Thanks for posting them TD.


Thanks Isaguy.

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Jul 10, 2019 09:54:41   #
Thorny Devil
 
tommy2 wrote:
Well, coming from the perspective of a highway bridge designer all I can say about the whole concept is, "VERY impressive".


Thanks for looking tommy2. Not surprisingly traffic inspectors are quite hot on monitoring vehicle weight and axle loadings particularly in respect of bridges.

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