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Aluminium trollies

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Sam.Spoons View Drop Down
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Post Options Post Options   Quote Sam.Spoons Quote  Post ReplyReply Direct Link To This Post Topic: Aluminium trollies
    Posted: 18 Mar 19 at 6:05pm
How much weight does an ally launching trolly save over the galvanised steel alternative?
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JimC View Drop Down
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Post Options Post Options   Quote JimC Quote  Post ReplyReply Direct Link To This Post Posted: 18 Mar 19 at 6:30pm
I never weighed mine, but aluminium alloy is about a third of the density of galvanised mild steel. Even allowing for wheels and things, and larger diameter tubes its surely going to be in the vague region of half.
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Post Options Post Options   Quote iGRF Quote  Post ReplyReply Direct Link To This Post Posted: 18 Mar 19 at 7:35pm
A bit annoying when they bob to the surface and float away from where you want them to be when you're recovering in a shore break.
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Post Options Post Options   Quote Sam.Spoons Quote  Post ReplyReply Direct Link To This Post Posted: 18 Mar 19 at 7:47pm
Good point Graeme...  Maybe add some lead corrector weights  Wink
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Post Options Post Options   Quote Sam.Spoons Quote  Post ReplyReply Direct Link To This Post Posted: 18 Mar 19 at 7:55pm
Originally posted by JimC

I never weighed mine, but aluminium alloy is about a third of the density of galvanised mild steel. Even allowing for wheels and things, and larger diameter tubes its surely going to be in the vague region of half.

Just googled it (I know, I need to get a life), 2.7 g/cm3 for ally and 7.7 g/cm3 for steel but you need about 40% more thickness for equivalent strength so about half sounds right. So how much does a Blaze trolly weigh? My guess is 20-25kg for steel so, say, 10-12 for ally...... A useful chunk of when pulling it up the slip (maybe 15% of the overall weight)
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Post Options Post Options   Quote davidyacht Quote  Post ReplyReply Direct Link To This Post Posted: 18 Mar 19 at 8:20pm
Originally posted by iGRF

A bit annoying when they bob to the surface and float away from where you want them to be when you're recovering in a shore break.

On the other hand donít lose them to the bottom, as you might at Queen Mary or Riva Del Garda ...
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Post Options Post Options   Quote RS400atC Quote  Post ReplyReply Direct Link To This Post Posted: 18 Mar 19 at 8:38pm
Originally posted by Sam.Spoons

Originally posted by JimC

I never weighed mine, but aluminium alloy is about a third of the density of galvanised mild steel. Even allowing for wheels and things, and larger diameter tubes its surely going to be in the vague region of half.

Just googled it (I know, I need to get a life), 2.7 g/cm3 for ally and 7.7 g/cm3 for steel but you need about 40% more thickness for equivalent strength so about half sounds right. So how much does a Blaze trolly weigh? My guess is 20-25kg for steel so, say, 10-12 for ally...... A useful chunk of when pulling it up the slip (maybe 15% of the overall weight)

A lot of steel trolleys are far heavier than they need to be.
The Optiparts ali laser trolley weighs in at 11.5 kg inc wheels.
Unfortunately it weighs in at £250 or so...

Trident say their Laser Trolley is 26kg.
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Post Options Post Options   Quote piglet Quote  Post ReplyReply Direct Link To This Post Posted: 18 Mar 19 at 9:54pm
One advantage of steel is that the scrap price is currently only 11p
Kg meaning it's more likely to be under your boat when you arrive on Sunday morning.
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Post Options Post Options   Quote Alistair426 Quote  Post ReplyReply Direct Link To This Post Posted: 18 Mar 19 at 9:56pm
This question was asked on the DZero FB page the other day and Rodney Cobb (Devoti Finn UK) replied, "Steel trolley is 33 Kgs and Aluminium trolley is 20 Kgs, based on Finn trolleys which have the same frame with different cradles."
 I'm sure you can extrapolate that result for whichever trolley size you are referring to.
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Post Options Post Options   Quote Rupert Quote  Post ReplyReply Direct Link To This Post Posted: 18 Mar 19 at 10:51pm
How do you get an Ali trolley to 20kg?
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