RRSPORT.CO.UK

    Forum   Gallery   Shop   Sponsors
Home > Off Roading & Green Laning > Only two wheels on the ground ?
Post Reply  Down to end
Page 1 of 2 12>
 
Rolo



Member Since: 29 Feb 2016
Location: Manchester South
Posts: 39

United Kingdom 2011 Range Rover Sport 3.0 TDV6 Autobiography Chawton White
Only two wheels on the ground ?

There may be an obvious answer to this that I'm not sure of it, but somebody here will be.

In a scenario where the "Range Rover Sport" my11, is sat on its chassis with only two wheels on the ground and two off the ground, which drive mode should be selected to rescue the car. I'm thinking:

a) The rear wheels over a cliff edge with the rear wheels spinning in fresh air when in normal drive mode ?

b) The nearside wheels over a cliff/kerb/drainage channel with no contact with any hard surface and sat on the underbelly from front to back ? How would one re-mount the edge when the wheel line is parallel to the edge ? Steer further out until the front wheel can be turned inwards so that first point of contact is the tyre rubber ?

Thanks in advance.

Gary

Post #515037 Thu Jan 19 2017 8:59am
View user's profile Send private message View poster's gallery Reply with quote
RRSTDV8



Member Since: 12 Aug 2011
Location: Northamptonshire
Posts: 5420

United Kingdom 2008 Range Rover Sport TDV8 HSE Stornoway Grey

If the vehicle is grounded and wheel spin is detected, the suspension will be automatically raised by approx 50mm to try to give ground clearance. If it's still grounded you can put your foot on the brake and press and hold the raise button for a few seconds. This will give you another 25mm maximum if available. If that doesn't get the chassis off the ground then you will need recovering by another vehicle.

In your cliff examples, I would suggest that you won't be able to drive out of either situation. You need rescuing.

The Terrain Response systems are very good but they can't help once you have the vehicle fully sat on the chassis such as in your cliff examples.

My advice is to avoid cliffs... 2012 SDV6
2008 TDV8 - it's a labour of love

Post #515039 Thu Jan 19 2017 9:32am
View user's profile Send private message View poster's gallery Reply with quote
Rolo



Member Since: 29 Feb 2016
Location: Manchester South
Posts: 39

United Kingdom 2011 Range Rover Sport 3.0 TDV6 Autobiography Chawton White

Thanks for that.

Must say I'm surprised and disappointed. I did expect that, in case a) at least, the front wheels could drag the vehicle forward, using one of the terrain modes, until the rear wheels made contact and then all four wheels would work together.

Makes driving on virgin snow a nightmare, methinks. Fortunately, that's not an experience I pursue. Smile

Post #515045 Thu Jan 19 2017 10:29am
View user's profile Send private message View poster's gallery Reply with quote
Lonescout



Member Since: 30 Aug 2016
Location: UK
Posts: 34

2006 Range Rover Sport TDV6 HSE Cairns Blue

It might be a Land Rover (Range Rover) but it still must obey the laws of physics. I've had to recover too many Land Rovers who's owners mistook them for magic carpets.

Post #515047 Thu Jan 19 2017 11:09am
View user's profile Send private message View poster's gallery Reply with quote
RRSTDV8



Member Since: 12 Aug 2011
Location: Northamptonshire
Posts: 5420

United Kingdom 2008 Range Rover Sport TDV8 HSE Stornoway Grey

It might be possible to drag the back end until the rear tyres make contact with ground. However, if the vehicle is sat on its chassis frame (or fuel tank more likely), it's likely that the front wheels would slip and spin. In rock crawl mode you'd have a fully locked centre diff but you'd still be relying on the front tyres to find some grip. No grip, no go.

With the case of tyres on one side in a ditch, the vehicle would be sat with the lower wishbones on the ground. You might be able to turn to wheel toward the higher side and gain traction to lift the nose back.on to the ground. Again, I'd use rock crawl to ensure the centre diff is locked. You'd be lucky not to damage the side wall of the tyres trying climb out of the ditch like this, however, if the edge is sharply defined.

Again, stay away from cliffs.

Just to prove that they can drive up very steep stuff, if not cliffs, see here:

The chap would have made smoother progress if he hadn't kept jumping off the throttle when the wheels spin. Traction control needs wheel spin in order to know what's going on. Impressive climb, none the less. 2012 SDV6
2008 TDV8 - it's a labour of love

Post #515052 Thu Jan 19 2017 11:45am
View user's profile Send private message View poster's gallery Reply with quote
DrRob



Member Since: 23 Feb 2011
Location: Hampshire
Posts: 1361

United Kingdom 2012 Range Rover Sport SDV6 HSE Orkney Grey

He'd have done a lot better without that idiot getting in the way....psychologically it would be causing him to lift the throttle off to avoid running into him. A steady throttle all the way would have done it. Never used a spotter in 30 years... GONE - SDV6 HSE MY2012 in Orkney Grey.
1993 200Tdi Tdi Range Rover - a proper Rangie!
1949 Series One 80" in family since 1975! Where it all began.....

Post #515053 Thu Jan 19 2017 12:00pm
View user's profile Send private message View poster's gallery Reply with quote
Buckster



Member Since: 05 Mar 2015
Location: Hampshire
Posts: 1087

England 2013 Range Rover Sport SDV6 HSE Orkney Grey

RRSTDV8 wrote:

My advice is to avoid cliffs...


Laughing Laughing 2003 BMW M5 - 5 Litres of V8 Optimax Slurping Goodness in Carbon Black

2013 SDV6 HSE Black Edition- Orkney Grey with Ebony & Ivory. LR Facelift RAI, Genuine G4 Expo Rack, 4x Warn SBD-160 Spotlights, Warn 9.5XPS Winch, Mantec Underbody Protection, LR Light Guards, 19"s on Goodyear Duratracs, ARB fridge, TuffTrek awning 😎

Post #515074 Thu Jan 19 2017 1:26pm
View user's profile Send private message View poster's gallery Reply with quote
Tim in Scotland



Member Since: 30 May 2005
Location: Driving along in my automobile
Posts: 15640

2013 Range Rover Sport SDV6 HSE Stornoway Grey

One wonders why Rolo is asking this -is he thinking of driving off Beachy Head and changing his mind halfway over the edge? Surely RRS ownership isn't so much of a millstone that he wants to end it all! 2015MY Corris Grey SDv6 HSE Dynamic, preceeded by a 2.7SE RRS, a 3.6TDv8 RRS, several FFRR's and 2 Evoques.
Also in my garage is a 1996 TDi300 Defender 90 County HT made into a fake CSW.... my fun car to enjoy bashing and denting 20 years old and still giving loads of fun

Post #515090 Thu Jan 19 2017 3:11pm
View user's profile Send private message View poster's gallery Send e-mail Reply with quote
d-9



Member Since: 10 Jan 2017
Location: Herefordshire
Posts: 217

United Kingdom 2007 Range Rover Sport TDV8 HSE Santorini Black

Usually when you have wheels off the ground, its diagonally or one corner, which the sport should deal with.

If you're in the situation where the chassis is resting on the ground and the wheels are not, you have done something badly wrong. Usually the friction of chassis on ground is greater than the traction you have available from the two wheels , so you will need a tow. We did manage it on a green lane in a 88" a few months back, but managed to shuffle out with some left foot braking and wriggling side to side with what traction there was.

Post #515096 Thu Jan 19 2017 3:47pm
View user's profile Send private message View poster's gallery Reply with quote
Tim in Scotland



Member Since: 30 May 2005
Location: Driving along in my automobile
Posts: 15640

2013 Range Rover Sport SDV6 HSE Stornoway Grey

That is the "cross axle" situation, which any modern Land Rover product with traction control shouldn't find difficult to get out of but in the TDi Defenders and Series Land Rovers could be a problem. 2015MY Corris Grey SDv6 HSE Dynamic, preceeded by a 2.7SE RRS, a 3.6TDv8 RRS, several FFRR's and 2 Evoques.
Also in my garage is a 1996 TDi300 Defender 90 County HT made into a fake CSW.... my fun car to enjoy bashing and denting 20 years old and still giving loads of fun

Post #515101 Thu Jan 19 2017 4:07pm
View user's profile Send private message View poster's gallery Send e-mail Reply with quote
RRSTDV8



Member Since: 12 Aug 2011
Location: Northamptonshire
Posts: 5420

United Kingdom 2008 Range Rover Sport TDV8 HSE Stornoway Grey

Yep, cross axle generally not a problem for the RRS so long as constant gentle throttle used. 2012 SDV6
2008 TDV8 - it's a labour of love

Post #515104 Thu Jan 19 2017 5:26pm
View user's profile Send private message View poster's gallery Reply with quote
Rolo



Member Since: 29 Feb 2016
Location: Manchester South
Posts: 39

United Kingdom 2011 Range Rover Sport 3.0 TDV6 Autobiography Chawton White

Tim in Scotland wrote:
One wonders why Rolo is asking this -is he thinking of driving off Beachy Head and changing his mind halfway over the edge? Surely RRS ownership isn't so much of a millstone that he wants to end it all!


It was last September when I reversed over the edge of this sunken vineyard by mistake. I wrote about it at the time on a separate thread but at the time was more concerned with how close I came to flipping the vehicle as I reversed down that slope. The vines are about 4 feet high, so I estimate that the grass bank was 10 feet. You can see the gouge I left in the grass on the left hand edge nearest the camera. In the process of reversing down, I ripped off the front bumper and filled the exhaust cowls solid with grass and soil. So I'd been pretty near vertical.

The reason I've opened this thread is that I've not really learned how I'd tackle a similar situation in future if I was unfortunate to loose wheel contact again. Not something I have any desire to repeat, I can honestly add. However, with mountain roads and snow, it's something I'd like knowledge of. It appears that reversing was my only option, I've been wondering ever since, especially when getting panic attacks 😂, whether a drive mode option would have enabled me to simply drive off.

Fortunately, I've no experience of near side wheels being off the ground, but I can imagine that this could being a more frequent problem. One sees deep concrete/paved flood channels at the side of some mountain roads, but they wouldn't be obvious when filled with snow.

I travel alone and in mountainous regions, or coastal regions where mobile phone cover isn't always good. I'm not an off-roader, but I'll drive on a well marked stone track, or across a coastal headland to wild camp, or photograph an estuary etc.

Thanks for your responses.

Post #515283 Sat Jan 21 2017 1:11pm
View user's profile Send private message View poster's gallery Reply with quote
Rolo



Member Since: 29 Feb 2016
Location: Manchester South
Posts: 39

United Kingdom 2011 Range Rover Sport 3.0 TDV6 Autobiography Chawton White

Sorry, cant upload image. However, there's two photos in the gallery that show the situation.

Cheers.

Post #515284 Sat Jan 21 2017 1:14pm
View user's profile Send private message View poster's gallery Reply with quote
Lonescout



Member Since: 30 Aug 2016
Location: UK
Posts: 34

2006 Range Rover Sport TDV6 HSE Cairns Blue

Seriously, if I were you I'd look at doing some sort of off road driving course. You would learn what a 4x4 is actually capable of (you'd be surprised) and as a bonus what you are capable of. No amount of internet knowledge will substitute for actual hands on experience.

Post #515397 Sun Jan 22 2017 8:57am
View user's profile Send private message View poster's gallery Reply with quote
nigethecat



Member Since: 22 Sep 2016
Location: Aberdeenshire
Posts: 90

Scotland 2008 Range Rover Sport TDV8 HSE Java Black

Rolo wrote:
Sorry, cant upload image. However, there's two photos in the gallery that show the situation.

Cheers.


Nice photos, didn't know that Manchester was so scenic ! And vineyards !!!! who says Global Warming is a myth Laughing

Post #515399 Sun Jan 22 2017 9:34am
View user's profile Send private message View poster's gallery Reply with quote
Post Reply  Back to top
Page 1 of 2 12>
All times are GMT

Jump to  
Previous Topic | Next Topic >
Posting Rules
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum



Site Copyright © 2005-2017 Futuranet Ltd & Martin Lewis
RRSPORT.CO.UK RSS Feed - All Forums

Switch to Mobile site