Won’t be retro...

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Originally Posted by Zeros

I enjoyed that article, thanks for posting. Shame it doesn’t say if the Disco drove out of the water bath or not.

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Wow haha..what would be the point of the test if it didnt pass, "he guys i went for a swim with the new discovery today" [emoji23]

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Originally Posted by JDNSW

This is often stated, but how many prime movers are heavier than the trailer they are pulling?

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You know you can't compare a 5th wheeler with a regular caravan . Put a Turntable on a Ute above the rear axle and wheels toward the rear of caravan and you can tow 4 x weight of tug if the brakes are accordingly specced.

If a semi trailer had wheels in the centre , like a caravan there would be rollovers on every corner.

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Originally Posted by SBD4

Here ya go:



New 2017 Land Rover Discovery driven – the ultimate 4x4 returns to rule off-road

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Ha. I thought they drained the tank first. If it can start underwater thats even more impressive!

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Originally Posted by JDNSW

This is often stated, but how many prime movers are heavier than the trailer they are pulling?

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A prime mover is a VERY different animal to a 4WD, It is designed Exclusively for one thing and one thing only and that is to tow heavy loads and the drivers are trained professionals.
4WD's and SUV's cannot be compared to a prime mover because they are nothing like one and in most cases the drivers towing their van around don't have the skill sets that the professional truckies have either.

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Originally Posted by JDNSW

This is often stated, but how many prime movers are heavier than the trailer they are pulling?

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further to prev reply, here are some photos of a Holden '5th wheeler' I saw at Boulia.

note the 'towball' is directly above rear axle , same as a prime mover , and trailer wheels are toward rear like a semi trailer . The trailer will also be fitted with Air Brakes .

You can not compare a regular 4x4 Ute and caravan to a Prime Mover / 5th wheeler .

This combo will be magnitudes safer than any 3500 kg rated 4x4 towing even a 2500kg caravan .


http://goingbush.com/images/h51.jpg

http://goingbush.com/images/h52.jpg

http://goingbush.com/images/h53.jpg

I am not disputing that a fifth wheel connection is different from a ball (or similar) coupling, but my point really was to ask the question - what is magic about the ratio of the trailer mass to that of the towing vehicle? Why 1:1? Why not 1.5:1? or some other number?

The safety of a trailer depends on a wide variety of factors, probably the most important being the weight distribution. But others are also important. For example, I regard the Citroen I sold a few years ago as one of the best tow vehicles I have driven (but limited by power and gearing) because the towbar is only about 15cm behind the back of the rear tyres, self levelling suspension, and no sideways play on the suspension.

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Originally Posted by Zeros

Hopefully Defender won’t be a sports car or an SUV.

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A 4wd is a SUV, so the new Defender will be an SUV, the same as a new RR, RRS, Jeep Wrangler, Landcruiser 70, 200 etc etc etc are all SUVs - just as Evoques, X trails etc are SUVs - unfortunately that horrible American term has stuck.

I suppose it would be too much to expect that now the Americans have pulled out of manufacturing here that they took their terminology with them?

..so like many words in our limited increasingly generalist lexicon, SUV has come to mean nothing in particular. It’s pretty much any vehicle and it doesn’t even need to be 4x4. [bigwhistle]

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Originally Posted by trout1105

As many people are buying 4WD's to tow their caravans around I am a little concerned about just how light these new D5's are and I imagine that the new defender will also have a low kerb weight/GVM and their ability to SAFELY tow caravans that easily exceed the tugs GVM.
I have always been lead to believe that the trailer should Never be heavier that the towing vehicle, Am I wrong in thinking this?
For example I have a little Navara twincab that has a kerb weight of a bit over 1800kg and yet it is specced to tow up to 2.8t and I would Hate to be towing that much weight behind that little bugger.

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Yes, they are lighter than the D4 is but they are not light. They are ~2200Kgs. vs ~2550Kgs for the D4. By shedding that weight LR have been able to increase the payload to over 900Kgs which is a massive increase and leaves every competitor in the dust (let's not mention the Patrol or LC 200 payloads). So, with that sort of payload in the vehicle I don't think there would be much of concern about the weight of the trailer. Also, keep in mind that the previous 110 kerb weight is 212Kgs lighter than the D5, the same concern never seems to be express for the Defender.

I don't think there'll be any issue for the new Defender.