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Old 27 April 2009, 15:54   #1
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Launching Wheels

Anybody got any particular views or recommendations regarding what type or what make of launching wheels to use for a 2.9m SIB?

Been thinking about THESE purely on the basis that plastic and seawater get along just fine. Got an open mind though. Is plastic bracketry heavy duty enough for bouncing across car parks or whatever? Some of the metal ones look a bit spindly and fragile and bulky.
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Old 27 April 2009, 17:58   #2
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Can't recommend what ones to get but i would advise not to buy Plastimo launching wheels. I had two sets and the pins broke on each. Got a refund in the end.
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Old 27 April 2009, 18:24   #3
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Hi Leapy - I used the same ones on a couple of SIBS & small ( Avon 310 RIB) with up to 8HP on the back. Fine on tarmac/ concrete & hard surfaces but struggle a lot on sand/ shingle etc.

My first pair - the plastic spindles wore out after 4 years so I replaced them with stell rod & split pins -easy job & fine after that. Then sold the boat 2 months later. Second pair on new tender fine after 18 months.

Might have some pics somewhere .....

PS - I go mine shipped form the US - exchange rate not as good now - but was a worthwhile amount cheaper
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Old 27 April 2009, 19:43   #4
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I would go for the alloy bracket ones with pump up tyres ,i got a cracking set of a certain bay site off of here, 50 odd quid now excellent across sand and shingle only 4 holes to drill into the transom ,instead of 8 with the plastic dolly wheels,plus mine males a cracking rod rest as well ,which i have adapted
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Old 27 April 2009, 19:50   #5
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As I thought - I reckon the biggest boat you would want on these wheels ( on tarmac etc)
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Old 27 April 2009, 21:28   #6
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Quote:
Originally Posted by Leapy View Post
Anybody got any particular views or recommendations regarding what type or what make of launching wheels to use for a 2.9m SIB?

Been thinking about THESE purely on the basis that plastic and seawater get along just fine. Got an open mind though. Is plastic bracketry heavy duty enough for bouncing across car parks or whatever? Some of the metal ones look a bit spindly and fragile and bulky.
NO NO NO!!!

I suppose they would be ok on nice mowed grass but wouldn't fancy them anywhere else.

http://shop.ebay.co.uk/?_from=R40&_t...All-Categories

There are a few on here.

Also

http://www.ronhalemarine.co.uk/super...unching_Wheels

You need the big inflatable wheels. Some are slightly bent over to the side to give added clearance.

They are a godsend.
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Old 28 April 2009, 05:31   #7
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You need the big inflatable wheels...
Thanks to everyone for their input

Codders...bear in mind I've never seen any of these wheels fitted or in action...if these wheels are 14" diameter then - from the photograph - the transom brackets must be 16" or so from the wheel centres and the fixings to the transom must be only 2" or 3" apart. That looks like a fair bit of leverage. Presumably, the brackets bolt to the transom rather than screw?

Have you used these? Are they durable?
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Old 28 April 2009, 06:22   #8
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Hi I used these for 2 seasons on a Avon rib light and found them to be very poor quality and not very good for the job intended. They are very rigged on concrete and i found i had to pull very slowly to keep the vibration down. The raising and lowering method easally got stuck, they were hopeless on sand and you had to watch they didn,t fall apart when up. There is a s/s version with rubber wheels that are perfect, if i was any good with computers i would point you to them but wouldn,t know where to start forming a link. Hope i was of some help cheers Ian.
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Old 28 April 2009, 06:25   #9
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Hi I used these...
Sorry - are 'these' the plastic ones?
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Old 28 April 2009, 06:32   #10
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Yes the ones on that sib, They say they have a life time guarantee but if you use them on concrete alot they will wear out very quick.
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Old 28 April 2009, 06:36   #11
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These are the business http://cgi.ebay.co.uk/Dinghy-Inflata...3A1|240%3A1318

They are all stainless steel fittings large pneumatic tyres and they bolt through the transom £70 bargain
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Old 28 April 2009, 06:48   #12
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These look quite good.
http://rib.net/forum/attachment.php?...1&d=1240901232
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Old 28 April 2009, 09:53   #13
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That be the ones ,don t buy those silly plastic ones ,hopeless on shingle,,,,,,,when the brackets are fitted to the transome ,use stainless steel nut n bolts and cill with SIKAFLEX a MUST,so no water will get in to the holes drilled in the transome ,as said there is a cracking set on ebay, 5o quid now ,i payed 75 for the same ones.
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Old 28 April 2009, 11:52   #14
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This type won't suit all inflatables. For example the Quicksilver range have a small triangular gusset of material to stop water coming on board so you need ones with a cranked leg like these.

The straight legged ones could cause problems with clearance.
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Old 28 April 2009, 12:33   #15
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These are the business http://cgi.ebay.co.uk/Dinghy-Inflata...3A1|240%3A1318 SORRY THESE ARE THE ONES I MENT ,fit my transom fine ,THOUGHT they would fit most
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Old 29 April 2009, 01:16   #16
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Quote:
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,,,,,,,when the brackets are fitted to the transome ,use stainless steel nut n bolts
This is essential !

Quote:
Originally Posted by thornbackflound View Post
and cill with SIKAFLEX a MUST,so no water will get in to the holes drilled in the transome

DO NOT USE SIKAFLEX !!!
Sikaflex is silicone based and will due evil things to a plywood transom over time. The proper sealants to use for this application are either 3M Marine Adhesive/Sealant Fast Cure 4200 if you do not want an absolutely permanent bond, or 3M™ Marine Adhesive/Sealant Fast Cure 5200 if you do want an absolutely permanent bond.

http://solutions.3m.com/wps/portal/3...beQH8HT14PGTgl

http://solutions.3m.com/wps/portal/3...beQH8HT14PGTgl
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Old 29 April 2009, 02:24   #17
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Don't use Sikaflex? That will raise a few eyebrows over here!!! And what is wrong with silicone exactly?
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Old 29 April 2009, 03:04   #18
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Don't use Sikaflex? That will raise a few eyebrows over here!!!
Well I should really qualify that, my bad . I assumed he was referring to a silicone based Sikaflex formulation which is pretty common. If you specifically use Sikaflex 291, you will be fine, since Sikaflex 291 is polyurethane based, not silicone based.

http://www.sikaindustry.com/tds-ipd-sikaflex291-us.pdf


Quote:
Originally Posted by codprawn View Post
And what is wrong with silicone exactly?
Silicone is inappropriate as a sealant for plywood boat transoms.

http://rib.net/forum/showthread.php?p=249763
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Old 29 April 2009, 07:57   #19
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Well I should really qualify that, my bad . I assumed he was referring to a silicone based Sikaflex formulation which is pretty common. If you specifically use Sikaflex 291, you will be fine, since Sikaflex 291 is polyurethane based, not silicone based.

http://www.sikaindustry.com/tds-ipd-sikaflex291-us.pdf




Silicone is inappropriate as a sealant for plywood boat transoms.

http://rib.net/forum/showthread.php?p=249763
Been ok on my boat ,NO water gets in and was advised by many on a boat fishing forum ,of course there is the right SIKAFLEX you have to use
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Old 29 April 2009, 17:51   #20
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Silicone is inappropriate as a sealant for plywood boat transoms.

http://rib.net/forum/showthread.php?p=249763 [/QUOTE]

Why? are there some sinister reactions going on?
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