Sat Nav

My advice is to buy a good map and plan your route using the more major roads suitable for your MH - you don’t say what size it is.  A map will show you gradients and single track roads as well as how twisty they are.

Use a sat nav as a guide for following your chosen route but not as the be all and end all. They have advantages but also some disadvantages, particularly if not set to follow major roads.

As for brand of sat nav, everyone has their favourites and my own is Garmin but just choose what suits you.

Not just narrow roads.   that need care a lone lady driver arrived on site in brand new Elddis motor caravan with the top of the TV aerial missing

,,She had put in measurements for vehicle in her sat nav which did not take into account of the aerial on the roof and  at Ely on a road that had two low bridges one OK, second took top off aerial 

I have not had any problems with Co-Pilot, do you have the truck version where you can set the paramenters of preferred roads and vehicle dimensions and weight?

peedee

Agree, maps are good, but when using the sat nav ensure it is set to 'fastest route' (generally faster, major roads) NOT 'shortest route' ( which will take you down any lane to save a few metres).

I can put in dimensions on my sat nav, but would never trust it without running through the route and checking any uncertainties on Google.  It’s only as good as the data input. If someone has made a mistake any sat nav can route you down an unsuitable road. Having said that, many less than 7.5 tonne roads are fine. The weight restrictions just being for a weak bridge, or to keep HGV’s out of a village.
Not a width issue but recently we found a northbound junction missing from ours. If I hadn’t of checked, we would have ended up missing it and doing an extra 10 miles, coming back down the southbound carriageway from the next junction.

I have a built in TomTom sat nav in my Bailey motorhome based on a Peugeot cab. I agree that having put it in a van you might expect it would be a bit more careful where it takes you!!! I suspect many "white van" drivers are not too bothered where it takes them as they don't own the vans and want to get from A to B as quickly as possible!!! What I have learnt from three years on using the built in sat nav is that you need to check the route. If there is part of the route you are not happy with there is the option to avoid that part of the route in the settings. 

I often ponder whether I should buy a new campervan specific sat nav. The best I have owned  was a TomTom with camper camper maps on which very rarely took us anywhere we didn't want to go. I don't know much about the Aguri although I am attracted to the built in dash cam.

David

Thank you all for your insight really helpful - better planning seems to be the overall take away

yes used truck copilot with dimensions keyed in.  

size of our Motorhome is 7,35M long width 2.31 and height with satellite! 2.5 -so not huge but big enough to warrant avoiding narrow lanes as share the sentiments we want to keep her in tact, scratch free and driver calm. 

It pays to check the overall route with maps and I also use Google maps, Arial view for the last 100 yards or so, particularly if using CLs.

We also plan our route using google maps and any concerns we get the little yellow person on street view to take a closer look

Yes, there are enough resources around to intelligently use SatNav and completely negate spending a load of cash on so-called specialist versions which generally use the same underlying one of two data sets as every other SatNav on the market.