Sonar? May well be a stupid question...

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bankz5152

bankz5152

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Hey chaps,

Been wondering about the sonar fitted to the new RR and Evoque for wading, seems like a pretty decent gizmo for wading. Googled a bit and found you can get basic sonar for fishing, meant for locating fish etc but some of them can also do depth and locate obsticals. Seen em on ebay for £20 - £50 not too expensive..

Its not that I do alot of wading but somtimes nice to know the depth before taking the plunge, or knowing if there are any big old rocks, dips or holes to be aware of.

For £20 might give it ago. What you guys think?
 
Ask our resident wading expert PaulD about what he thinks, might get an interesting reply. Got to be worth a Pm to him to find out........
 
If you need a sonar you would probably need a periscope, the fishing sonars take a while (several seconds) to detect depth and to scan, so on a moving vehicle might not be much good? Also the comparatively shallow depth (in fishing terms) that you would be driving through may not be deep enough to register. I would be inclined to do a bit more research on the dedicated systems used on the RR and try and source a dedicated system for a vehicle. Probably be more than £50 though ;)
 
Standard marine depth sounders/fish finders don't usually register much below 0.5m and I certainly wouldn't rely on them to be accurate to better than 0.5m. they also transmit in a fairly narrow cone so at shallow depths, you are only going to see what is directly below the transducer. You'll easily miss a hole. You could rely on them for confirming the water is too deep. But not that it isn't if you see what I mean.
Reading a bit about the landrover system. It appears to have sensors in the wing mirrors. That must mean that it is transmitting through air then into the water and back. Most transducers won't transmit through air. Bubbles in the water will give a return so either the Landrover system is really clever or it doesn't work.

I would invest in a drysuit and go for a walk. Only way to be sure.
 
DiscoPol said:
Ask our resident wading expert PaulD about what he thinks, might get an interesting reply. Got to be worth a Pm to him to find out........
Click to expand...

Twunt .. ;)

Depends, in my case, if it works with depths from 1' deep, to a river bank about 3' deep .. I never made it to the ford bit! The water level was disguising the lie of the ford to the road, slightly offset, so I basically drove straight into the river ...

Had the engine turning over today, lots of water came out, no horrible noises except from the starter. Gonna try and fire it up tomorrow if the weather isn't too wet .. ;)
 
AHEM young Paul...
"Had the engine turning over today, lots of water came out, no horrible noises except from the starter. Gonna try and fire it up tomorrow if the weather isn't too wet" ..

errr, we know it does wet,
but it seems you dont ..:lalala:


only joking mate...
hope all goes well indeed.... WD40 is an engineers tool box eh ;)
 
bankz5152 said:
Hey chaps,

Been wondering about the sonar fitted to the new RR and Evoque for wading, seems like a pretty decent gizmo for wading. Googled a bit and found you can get basic sonar for fishing, meant for locating fish etc but some of them can also do depth and locate obsticals. Seen em on ebay for £20 - £50 not too expensive..

Its not that I do alot of wading but somtimes nice to know the depth before taking the plunge, or knowing if there are any big old rocks, dips or holes to be aware of.

For £20 might give it ago. What you guys think?
Click to expand...




:lol::lol: By the time the transducer gave you a danger of deep water it would be to late....... unless you mounted it to a 10 foot barge pole in front to warn you of pending deep water. On my boat it is by the motor , and only reads 24" to 1000" of water depth. The unit cost $700 last year
 
Range Rover sensors are fitted in the mirrors and look straight down, the beam reflects of the waters surface and the ECU then looks at suspension height and works out how deep the water is. So you have to be in the water first. I suppose it is useful to confirm to the driver that the water they are in is below the 900mm wading depth.
 
If the unit measures the depth down to the river bed you may be safe on a firm river bed or bed rock. But if it measures to the surface of deep mud or loose shifting gravel then your vehicle will sink in till it reaches a layer that will support it. There may be problems with deep ruts that you can't detect caused by tractors. Food for thought !
 
owl said:
Range Rover sensors are fitted in the mirrors and look straight down, the beam reflects of the waters surface and the ECU then looks at suspension height and works out how deep the water is. So you have to be in the water first. I suppose it is useful to confirm to the driver that the water they are in is below the 900mm wading depth.
Click to expand...

Sounds a bit gimmicky bit like the compass in the rear view mirror of the D2 and all the other useless bits of electric nonsense fitted these days
 
biggeeeee said:
Sounds a bit gimmicky bit like the compass in the rear view mirror of the D2 and all the other useless bits of electric nonsense fitted these days
Click to expand...

Yup, can't imagine any new RR owners going through any water deeper than a few inches. Though I am working on a 405 at the mo that is owned by a company and it is plastered underneath.
 
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