NEW Trailer IVA??
- Thread starter NW123
- Start date
davidpbo
Well-Known Member
Does the 2200kgs include anything for anchor, chain, residual fuel, residual water. Warps, fenders, wet weather gear, lifejackets, spares etc? Spare wheel.
What about mastc raising tackle if it's a sailing boat?
It is a lot easier if you don't have to transfer everything to the tow vehicle.
Also make sure you can adjust the balance either by moving the boat or the axles.
Personally I would look at a higher rated hitch. Your trailer will probably with at least 500kgs. More of you need docking and etc.
Weight usually goes on boats and trailers, rarely off.
I've just replaced the headling and windows and am adding a 4 step bathing ladder. Added at least 50kgs I would think.
AngusMcDoon
Well-Known Member
Yes, it has all that good stuff. The one in the photo I posted is not mine, it was just an illustration, but mine is the same. Last time it was moved by road it got pulled by plod and taken to a weighbridge and thoroughly checked over and measured. The only complaint was a bit of white light showing through one of the orange sidelights where the lens had been clonked, but that was just an advisory and was allowed to continue on the road.
Here you go, here's another piccy, also not mine, but with the long overhang marker board in place to make you happy
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Avocet
Well-Known Member
Those axles look like second hand ones from a caravan breaker. You'll need to be very careful that you get three identical ones (for compatibility) and that they are new enough to meet the latest amendments to 71/320. Also, you might not get that much help with certification from the brake manufacturer if there's no sale in it for him! Worth making sure you can get that before you get stuck with 3 second hand axles.
Avocet
Well-Known Member
I'm sure the OP has checked, but (as has been said many times on here before!) boats rarely weigh what their manufacturers claim. Avocet is supposed to weigh just under 3 tonnes but after I'd stripped everything movable out of the boat (couple of anchors and chains, bedding, any loose furniture, sails, rigging, fuel, water, boom, gas bottle, standing rigging, guard rails... AND EVEN TOOK THE RUDDER OFF!!!! it was 3.5 tonnes on the crane load cell! Also, the 3 axle trailer on which I had hoped to move it, weighed 750kg.
NW123
New Member
Hi guys thanks for the replys and for advice the trailer will be over 30ft including hitch etc probably about 32-33 ,maybe a bit longer, all axles are the same with load capacity of 1300kg each so that is 3900kg in total the construction will be made out of 1 0.4mm thick square tube and sides from 0.3mm square tube which is very strong and could probably take over 4000kg if not more so Im not worried about that, also at the back Im planning to put LONG VEHICLE sticker or something along the line, also if the brakes work and that will be checked I presume why would I need any paper work for it???
Avocet
Well-Known Member
I'm sure you don't mean 0.3 and 0.4mm tube?! 3 or 4mm perhaps? Sounds reasonable, but depends on the construction of the trailer. One problem with box sections is protecting the insides. I prefer channel and angle sections for boat trailers. Also tricky to bolt axles tho hollow section and tightening the bolts sufficiently but without crushing the tubes.
Brake testing at IVA is very limited, so they rely heavily on "documentary evidence of compliance". The tests are expensive, so you really need to get this from the BRAKE (not axle) manufacturer. (That said, the axle manufacturer might have a copy).
Brake testing at IVA is very limited, so they rely heavily on "documentary evidence of compliance". The tests are expensive, so you really need to get this from the BRAKE (not axle) manufacturer. (That said, the axle manufacturer might have a copy).
halcyon
Well-Known Member
I assume you have https://www.gov.uk/government/publications/individual-vehicle-approval-iva-it IVA application and notes ?
Page 37 of this gov doc tells you what you need for IVA https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/277534/guide-to-the-iva-scheme.pdf tells you what apovals and what needs E marks
Brian
Lakesailor
Well-Known Member
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Spi D
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I was told to put them on to a trailer that originated from Germany. The distance from the towing car to the trailer's widest point apparently was to great and had to be marked.
I'm sure the documentation needs to bit more specific to meet requirements
A prof trailer would be twin axle for good reasons - three axles is a pig to handle as you can't even move it empty, apart from straight line, without a vehicle. I wonder why your design would be lighter, stronger and better than those from the experienced manufacturers? They have the same goals and the resources to do it, even in a mass production setup..?
BTW functionality of the design expectedly would be better also on a prof trailer.
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Avocet
Well-Known Member
I wouldn't want to put anyone off having a go, but it's a big boat (as trailable boats go), so it's an ambitious project. Like any amateur builder, the OP is going to be stuck with off-the-shelf steel sections, so it will be structurally less efficient than most "bought ones". If the paperwork isn't there, it's going to fall at the first fence though. I recently rebuilt my old twin axle junk trailer with new axles (albeit that I had to cut and sleeve them because they were too narrow) but the fact that they were new meant that I was able to phone Avonride (the axle maker) who knew exactly what I was talking abut and stuck a copy of the braking approval in the post. I don't suppose I'll ever use it (trailer was built long ago and doesn't even need any of this), but it's nice to have.
