Member Since: 20 Apr 2012
Location: Brisbane
Posts: 46
Is it body off to fix things like the D3/4?
Do those ingenium engines have timing belts?
Some 18" rims would be good so LT tyres can be fitted.
We need these in Aus as they have run out of money to fix the roads here.
26th Apr 2017 11:32 am
J77
Member Since: 03 Mar 2008
Location: Fife
Posts: 6261
The D5 is a monocoque, there's no separate chassis like the D4.23.5MY Defender 90 X-Dynamic SE D250 MHEV Pangea Green
26th Apr 2017 2:05 pm
Red Merle
Member Since: 30 Aug 2014
Location: Liskeard
Posts: 7438
Technically, it's a unibody
A true monocoque has all its strength in its visible surface, like an eggshell or a motorcycle crash helmet, while a unibody has an underlying structure made from box sections and the like.
It's a halfway house between a true monocoque and a body with a separate chassis, like the D4.
28th Apr 2017 8:26 pm
RRSTDV8
Member Since: 07 Apr 2014
Location: Here
Posts: 13091
The D4 is a "chassis with a unibody" - I think that's how LR described it. "Chuffing heavy" is how everyone else describes the concept. Visiting from rrsport.co.uk
2012 RRS SDV6
2008 RRS TDV8
"When you fire that first shot, no matter how right you feel, you have no idea who's going to die! You don't know who's children are going to scream and burn. How many hearts will be broken. How many lives shattered. How much blood will spill, until everybody does what they were always going to have to do from the very beginning: SIT DOWN AND TALK!"
28th Apr 2017 8:51 pm
Red Merle
Member Since: 30 Aug 2014
Location: Liskeard
Posts: 7438
Strength, durability, ease of repair, practical internal space, big loading apertures, large glass areas and superb visibility were also equally high priorities as weight when it was originally designed though
28th Apr 2017 9:48 pm
J77
Member Since: 03 Mar 2008
Location: Fife
Posts: 6261
LR call it a monocoque that's good enough for me 23.5MY Defender 90 X-Dynamic SE D250 MHEV Pangea Green
29th Apr 2017 3:45 pm
DiscoStu
Member Since: 09 Apr 2006
Location: London
Posts: 11412
scarry wrote:
Is it body off to fix things like the D3/4?
Do those ingenium engines have timing belts?
Some 18" rims would be good so LT tyres can be fitted.
We need these in Aus as they have run out of money to fix the roads here.
Member Since: 30 Aug 2014
Location: Liskeard
Posts: 7438
J77 wrote:
LR call it a monocoque that's good enough for me
"Monocoque (/ˈmɒnəˌkɒk, -ˌkoʊk/), also structural skin, is a structural system where loads are supported through an object's external skin, similar to an egg shell. The word monocoque is a French term for "single shell" or (of boats) "single hull".[1] A true monocoque carries both tensile and compressive forces within the skin and can be recognised by the absence of a load carrying internal frame."
I wonder how LR differentiate between an aluminium surface supported by an underlying structure of box sections and a true monocoque, like these:
29th Apr 2017 8:26 pm
Bullova06
Member Since: 19 Apr 2017
Location: York
Posts: 23
LR products -
Are a monocoque as opposed to a chassis frame.
They do have a "frame" that carries body panels.
I wonder how much the body panels contribute to the strength of the whole thing ?
I'm amazed that LR abandoned the hydroformed body floor pan
Maybe it will re surface in Defender.
Whatever construction method as long as it's strong enough, lasts the life of the vehicle, gives some benefit like economy or stiffness for suspension geometry & of course Safety.
Not a choice item it's what's on sale.
If the D5 being lighter doesn't tow as adeptly as it's direct predecessor (because of vehicle weight) as it'is another thing entirely.
D3/4 is a hard act to follow as regards towing not down to anything but good design, with some smart electronics. Proven system.
At the head of the thread, Russell has given some honest feedback. Which is beneficial to my quest.
The D5 part of the site is giving loads of really candid data, which to me is well worth reading as it gets posted up.
29th Apr 2017 10:43 pm
sacimiddx
Member Since: 09 Mar 2007
Location: hants
Posts: 2143
Are ants monocoqueIllegitimi Non Carborundum
29th Apr 2017 10:57 pm
Red Merle
Member Since: 30 Aug 2014
Location: Liskeard
Posts: 7438
That's a good point, I suppose they are. I wonder if an ant were to be fabricated with a carbon fibre monocoque, would it be any faster, lighter or stronger? It would probably be too time consuming, expensive, slow and hard to build in sufficient numbers to make a difference though!
30th Apr 2017 6:14 am
RRSTDV8
Member Since: 07 Apr 2014
Location: Here
Posts: 13091
Red Merle wrote:
Strength, durability, ease of repair, practical internal space, big loading apertures, large glass areas and superb visibility were also equally high priorities as weight when it was originally designed though
Calm down. My "Disco in a dress" has the same heavy but immensely strong design except it's got a smaller bum. Visiting from rrsport.co.uk
2012 RRS SDV6
2008 RRS TDV8
"When you fire that first shot, no matter how right you feel, you have no idea who's going to die! You don't know who's children are going to scream and burn. How many hearts will be broken. How many lives shattered. How much blood will spill, until everybody does what they were always going to have to do from the very beginning: SIT DOWN AND TALK!"
30th Apr 2017 10:33 am
petersw
Member Since: 17 Nov 2012
Location: Norfolk
Posts: 1135
The D5 is designed to be stronger than previous models, therefore described by Landrover to be their best off-roading car so far.
This from Landrover not me.Peter
30th Apr 2017 10:57 am
Red Merle
Member Since: 30 Aug 2014
Location: Liskeard
Posts: 7438
RRSTDV8 wrote:
Red Merle wrote:
Strength, durability, ease of repair, practical internal space, big loading apertures, large glass areas and superb visibility were also equally high priorities as weight when it was originally designed though
Calm down. My "Disco in a dress" has the same heavy but immensely strong design except it's got a smaller bum.
Oops, we may have a misunderstanding here! I meant that before weight was everything, there were lots of other things that were just as important when these were both designed
30th Apr 2017 12:53 pm
Red Merle
Member Since: 30 Aug 2014
Location: Liskeard
Posts: 7438
petersw wrote:
The D5 is designed to be stronger than previous models, therefore described by Landrover to be their best off-roading car so far.
This from Landrover not me.
That sounds good, although they did also say that there would be "no loss of practicality" as well
Have they published any comparative torsional rigidity figures to back this up with, or are we just going to take their word for it and hope for the best again?
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