The RS600 - opinions and how do you tack
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Category: Dinghy classes
Forum Name: Dinghy development
Forum Discription: The latest moves in the dinghy market
URL: http://www.yachtsandyachting.com/forum/forum_posts.asp?TID=1651
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Topic: The RS600 - opinions and how do you tack
Posted By: m_liddell
Subject: The RS600 - opinions and how do you tack
Date Posted: 16 Apr 06 at 12:22pm
I had a go in one and had a great time, the wind was only F3 but still loads of fun. Having just one sail and trapezing off the racks made it feel quite close to windsurfing. All the complexity, hassle and time it takes to rig my 14 made my really appreciate this.
I did have some problems tacking it even in this wind strength. The friend I borrowed it off said just hit the wire on the exit of the tack before you do anything at all, if the battens go and you are not out there you are f*cked. I didn¡¦t believe this and swam on the first tack I did! No matter how much you sheet out on the exit you will swim. Tacking slower to give me a bit more time worked a bit but the danger in a single hander with just the main is getting stuck in irons. Gybing was far easier.
EDIT: If found this vid on the MPS site http://www.mustoskiff.com/videos/wende.mpg - http://www.mustoskiff.com/videos/wende.mpg . I don¡¦t doubt the guys ability but I don¡¦t think you could get away with tacking like this.
I sail (and occasionally swim round!) a 14 with a crew that doesn't wire to wire tack and that that has a big fully battened main and I never have any problems at all. Here is my method:
Ease the sheet a bit and cleat it Push tiller away and move in as the power comes off Re-grab and uncleat the sheet Hold sheet and tiller in new back hand Hook on with new front hand Step out while swapping sheet front back to front hand
Anything wrong with this? 600 people, what is the trick?
Anyone got any other opinions on the boat? I might be in the market for one and I really liked the simplicity and quick hassle free rigging. The reefing sounds good (I'm 70kg 5'10") and they are pretty cheap. I didn¡¦t find it tippy at all apart from the tacking dramas. Does it ever get a bit boring downwind with no spin? The guy said he borrowed a 700 and found it boring because it was too easy to sail! Comparing the two of the boats in the boat part revealed that the hull shape is totally different (700 a bit 800ish?) and the huge fully battened main has been replaced with a smaller 'soft' rig like the 800.
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Replies:
Posted By: combat wombat
Date Posted: 16 Apr 06 at 12:44pm
See "The Contender" thread for a bit of discussion on the 600.
I've never sailed one but they are regarded as at the "top end" of the
scale when it comes to difficulty. I'd never say the 700 was
boring though! Y&Y test said it was easier to sail, as it has hard
chines rather than a round bottom making it inherently stable rather
than inherently tippy!
Launching the 600 is hard.
------------- B14 GBR 772
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Posted By: Guests
Date Posted: 16 Apr 06 at 7:51pm
Try this for the entry of the tack in the 600 - take your hand under the trapeze elastic and regrab the main, then when you're ready to finally go for the tack, uncleat the main whilst keeping the tension on, reach up to your disc/handle and unhook and move into the centre of the boat. The main will ease as you go in and because you took the main under the trapeze elastice it means you havn't come into the boat dragging the trapeze with you. If you keep the boat as flat as possble and enter the tack using this method then the exit becomes much less daunting. I hope i explained that properly.
Doug
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Posted By: Prince Buster
Date Posted: 16 Apr 06 at 8:29pm
well i went sailing for the first time in my 600 today but as you can see......there was no wind lol!  .
Didnt learn much but how to drift effectively! theres a load on how to
tack and gybe here..........
http://www.superspars.com/RS600. html
 
------------- international moth - "what what?"
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Posted By: Guests
Date Posted: 16 Apr 06 at 9:31pm
Prince buster Your lookin quite small, how much do you weigh?? (kilo's preferably)
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Posted By: Prince Buster
Date Posted: 16 Apr 06 at 9:35pm
about 53 on a light day and 55 after i've eaten .
But yeah i am kind of small but im fed up with hanging off a laser
radial ina F4 and going nowhere fast while other people are just
monstering it. I wanted a little more speed for my effort input
------------- international moth - "what what?"
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Posted By: Villan
Date Posted: 16 Apr 06 at 9:57pm
Seriously :o
And here was me thinking i'd be too light for one (65kg)
------------- Vareo - 149 "Secrets"
http://www.TandyUKServers.co.uk" rel="nofollow - TandyUK Servers
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Posted By: Prince Buster
Date Posted: 16 Apr 06 at 10:12pm
nah i played around on my friends one for a while before i got 637 and i was fine with the big rig most of the time!
------------- international moth - "what what?"
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Posted By: Guests
Date Posted: 16 Apr 06 at 10:29pm
villan, You would be fine at 65kg, you just keep on cranking the cunningham! and once uve got as much on as your arms will let you pull......you find a way of pulling on some more!!
p.s im only weighing 61-63kg and can hold it down without too many issues
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Posted By: m_liddell
Date Posted: 17 Apr 06 at 12:44am
A lot of the used boats have small racks. I'm 70kg so I guess I *could* use small racks, does it make a big difference when not racing?
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Posted By: Prince Buster
Date Posted: 17 Apr 06 at 9:14am
i use the small racks on my boat.....its easier to learn on them becuase there's less of a "leap of faith" and ive been told that the wides only really make a big diference when you're upwind and "in the groove" i you get what i mean
------------- international moth - "what what?"
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Posted By: Villan
Date Posted: 17 Apr 06 at 9:45am
Ah well ... Next season then :(
*starts saving*
------------- Vareo - 149 "Secrets"
http://www.TandyUKServers.co.uk" rel="nofollow - TandyUK Servers
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Posted By: Prince Buster
Date Posted: 17 Apr 06 at 4:55pm
Went sailing again today...bit more wind but also a bit more time in the water
Was it fun.......hell yeah!
 
------------- international moth - "what what?"
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Posted By: Femto
Date Posted: 17 Apr 06 at 6:04pm
Just a quick observation, its REALLY important to get the main right to
the top of the mast. If the main halyard cleat slips, it needs
replacing. There are a few tricks like using the cunningham on the
halyard to pre-tension it.
Also looking at those photos, more cunningham and kicker!!!!!!!!!!!!
Oh and regards tacking, yes its a black art- most people struggle and it seldom looks pretty!
------------- RS600 717, RS400 870 Netley SC
Kerr 11.3 (Pier View YC)
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Posted By: carshalton fc
Date Posted: 17 Apr 06 at 6:09pm
Originally posted by Femto
. Also looking at those photos, more cunningham and kicker!!!!!!!!!!!!
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give the poor guy a rest it was his first go out in the boat and the sail looks fine. why would u wont more cunno and kicker?
------------- International 14 1503
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Posted By: Femto
Date Posted: 17 Apr 06 at 7:14pm
Only trying to help! Using more
cunningham and kicker makes the sail shape more stable- when u dump the
main, it depowers rather than all the power going upto the top
corner.
------------- RS600 717, RS400 870 Netley SC
Kerr 11.3 (Pier View YC)
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Posted By: carshalton fc
Date Posted: 17 Apr 06 at 7:17pm
yer but when going down wind which thats what the first pic looks like u dont want any controls on cos no need,
------------- International 14 1503
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Posted By: Prince Buster
Date Posted: 17 Apr 06 at 8:22pm
Nah leave it out Luke, he's only trying to help!
Thanks Femto ill bear those points in mind next time i go out for a sail.
------------- international moth - "what what?"
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Posted By: Guests
Date Posted: 17 Apr 06 at 9:26pm
Actualy luke in the 600 ive found the kicker tends to give the sail a much better leech profile especially on reaching, not to mention making the main significantly easier to play. Although my personal preference similarly wouldnt be to have any significant downhaul tension on. But then saying that, ive only used the diddy rig once so im not really sure how to best sail with it. And in reference to tacking, its much much easier to tack with minimal kicker on but i would say try this to get used to tacking and then as u get more confident, progressively pull more and more kicker on. But then Thats just how i got started, not too sure if its the best way of going about it.
Doug
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Posted By: Isis
Date Posted: 17 Apr 06 at 9:35pm
having broken the kicker on the moth last weekend and with the only way
to get home a dead run downwind back to the beach I can add that moths
at least dont respond well to no kicker downwind!
...mind you they dont respond well to downwind full stop but no kicker was just added laughs.
-------------
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Posted By: Team beef
Date Posted: 17 Apr 06 at 10:36pm
Gybed yesterday in F5 and really regretted it, if there isnt enuf loeech tension downwind in a blow in the 600 nd you dont get around before that top batten flicks, you gonna die, as i found out 4 times yesterday . Having said that if yuve got a shed load of it on the boom doesnt like going out so best to find a compromise.
I know what people mean bout the tacking thing (still look like a spastic monkey when tacking ) but apart from that i think the 600 is a great set up boat for anything bigger i.e. 49er, 800 etc
------------- RS600 781
www.evolutionsailing.com
Ever had a boat that beats you up?
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Posted By: Jamie600
Date Posted: 18 Apr 06 at 1:06pm
To the opening poster, nothing wrong at all with how you have described your technique, there is a more advanced technique similar to the musto wire-to-wire but as you say the 600 won't tolerate tacking with the main cleated, so instead you drop the tiller and rely on bodyweight and sheeting to get it through the turn. The tiller floats round the back so you can pick it up on the new side.
With your weight you must sail on wides but they are no more difficult than narrows.
Prince - loving the look of terror on the left hand photo!
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Posted By: mike ellis
Date Posted: 18 Apr 06 at 4:19pm
ok, im 70kg+ once ive got all my sailing kit on and about 5ft 8 does that sound reasonable for a 600 or would i have to reef it alot? also what did you mean when you said its hard to launch? im a bit worried becuase there isn't much room where i sail to get comfortable after launching.
------------- 600 732, will call it Sticks and Stones when i get round to it.
Also International 14, 1318
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Posted By: timnoyce
Date Posted: 18 Apr 06 at 4:28pm
They are difficult to launch by yourself because they love to be on their side! You really need a helper as if there is any wind as soon as you let go of the wing/shrouds it will capsize. Not very helpful when it sits nicely up on its wing and you most likely won't be able to reach the top wing or right it without the daggerboard (which by that time is probably floating away!)
(voice of experience)
------------- http://www.facebook.com/bearfootdesign - BEARFOOT DESIGN
Cherub 2648 - Comfortably Numb
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Posted By: Jamie600
Date Posted: 18 Apr 06 at 4:58pm
Mike, you're the same size and weight as a guy called Ian Marshall, aka Spiderman, who has been seen at or near the front of the 600 fleet for several years, so don't worry about weight.
Like I said you would be required, rules-wise, to use wide wings but the extra leverage will help enormously, and is not really any harder to sail.
For launching you just need to show it who's boss. Pulling the cunningham on full before launching helps, as does launching with the battens inside out. On a wide winger you can go between the wing and the boat as well, making launching easier than if you had to climb over the wing.
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Posted By: 49erGBR735HSC
Date Posted: 18 Apr 06 at 4:58pm
It's probably been mentioned before but there are a few key things I've found help tacking boats with fully battened mains string to string. In the big winds, we knock off kicker and cunningham to decrease the likelyhood of the battens popping straight away once the tack has initially been completed. Right up to the point where the bow of the boat is moving head on to the wind we keep the main sheeted in completely for obvious reasons. Then at that point, we dump the main slightly which allows you to sheet on and power out of the other side of the tack. Usually, you can control the battens popping by sheeting in as you are hitting the wire, and the slight delay in the battens popping allows you to have some breathing space to get out on the wire, or sort out anything coming out of the tack and generally gives you more control of the boat. Good balance is a key aspect to successful tacking, initially, coming out of a tack, our windward wing will be pretty close to the water which stops the boat screwing up to windward. In light-winds, we implie a lot of roll in the tacks and sheet on control lines to help the battens to pop decreasing our chances of having backed battens. Land-drills a very useful to getting tacking procedures sorted out and it helps majorly when you go out sailing because the basic movements are second nature.
------------- Dennis Watson 49er GBR735 http://www.helensburghsailingclub.co.uk/ -
Helensburgh S.C
http://www.noblemarine.co.uk/home.php3?affid=560 - Boat Insurance from Noble Marine
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Posted By: mike ellis
Date Posted: 18 Apr 06 at 5:27pm
thanks for the explanation. i should be ok launching if thats all that happens. my friend didn't seem to be able to sail his 6 and hes only a bot smaller than me. thats why i was a bit worried.
------------- 600 732, will call it Sticks and Stones when i get round to it.
Also International 14, 1318
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Posted By: Rob.e
Date Posted: 18 Apr 06 at 6:18pm
I may be wrong, but I thought I heard Paul Bayliss say the key to sailing a 600 fast is to put on downhall 'till your fingers bleed!
Fully battened singlehanders in general will get stuck in irons if you don't have a positive tacking technique, and the 600 isn't the most stable! Bloody good boat tho'- there was a very small female a few years ago sailing one OK, and yet they cope with a fair bit of weight too! Wish I still had knees....
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Posted By: m_liddell
Date Posted: 18 Apr 06 at 6:26pm
Originally posted by timnoyce
They are difficult to launch by yourself because they love to be on their side! You really need a helper as if there is any wind as soon as you let go of the wing/shrouds it will capsize. Not very helpful when it sits nicely up on its wing and you most likely won't be able to reach the top wing or right it without the daggerboard (which by that time is probably floating away!)
(voice of experience)
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Oh man, that is a carbon copy of what happened with my 14 in the early days! A 600 guy told me all fully batterened rigs were like that. The way round it I found with the 14 was to hold the boat *exactly* into wind, seriously within like 5 degrees. Slightly off and she just powers up and then is on her side. Also minimize the time the boat is on the water with no one in it since balancing is is much harder (difficult for a single hander since you have no crew) so launch quickly.
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Posted By: southcoast
Date Posted: 21 Apr 06 at 9:21am
i have just got a 600, raced it roughly 3times and already im getting much better. First time i went out i did the old casize with no dagger board whilst launching trick, but that was around a force 4. I went out the next day in basically no wind and i found this helped me alot to understand just how tippy the boat is etc. Anyway now im getting the hang of it and sailing it reefed to start with also helped. I also use the wide racks and these are no problem and help alot upwind. Also help me to right the boat as i just climb through them. Anyway i used to sail a laser and would never go back!
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Posted By: Guests
Date Posted: 21 Apr 06 at 11:17pm
Originally posted by southcoast
Anyway i used to sail a laser and would never go back! |
Eeeeexxxxcellent!! Another one who's seen the light! Hope to see you on the circuit sometime!
Doug
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Posted By: Strawberry
Date Posted: 21 Apr 06 at 11:48pm
Has anyone ever put a kite on a 600?
(Please don't mention the 700. It's totally different!!)
------------- Cherub 2649 "Dangerous Strawberry
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Posted By: Ian29937
Date Posted: 22 Apr 06 at 12:00am
Yes - LDC
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Posted By: phantom_iv
Date Posted: 22 Apr 06 at 12:06am
Originally posted by Strawberry
Has anyone ever put a kite on a
600?
(Please don't mention the 700. It's totally
different!!) |
I think that's why they made the 700
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Posted By: Strawberry
Date Posted: 22 Apr 06 at 12:18am
The 600 is a much nicer boat to sail upwind! Shame they didn't keep the same hull and put a kite on that.
------------- Cherub 2649 "Dangerous Strawberry
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Posted By: Ian29937
Date Posted: 22 Apr 06 at 8:24am
Originally posted by Strawberry
The 600 is a much nicer boat to sail upwind! Shame they didn't keep the same hull and put a kite on that. |
That was exactly what they tried to do for the Olympic trials. Unfortunately the hull form is too unstable for launching, gybing and retrieving the kite and this was certainly one reason the MPS was faster round the course.
I'm sure LDC would have preferred to offer an upgrade to their many existing 600 customers rather than having to develop and offer a 'replacement' class.
I hadn't relaised that you'd been out in both the 600 and 700. I hope you enjoyed sailing the boats which are both great pieces of kit. Whose 700 did you take out and when? How did you get on?
Oh and btw, I can't agree that the 600 is much nicer upwind - the two boats are certainly different but beyond that it is simply personal preference. If you've sailed both and preferred the 600 that's fine
Good sailing
Ian
RS700 GBR960
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Posted By: Strawberry
Date Posted: 22 Apr 06 at 10:10am
It was actually the MPS I had a go on, but I understand they feel very similiar. Please correct me if I'm wrong. And if I am, can I have a go please?
I'm quite a fan of boats with little stability and was thinking about giving it a go. Could you point me in the direction of where I could find more info on when it was done before? Are there any pictures? Do you know what size kite they used?
------------- Cherub 2649 "Dangerous Strawberry
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Posted By: Jamie600
Date Posted: 24 Apr 06 at 12:43pm
For the initial trials they rigged an RS200 kite on Paul Bayliss' 600, but as Ian said the hull was too unstable so they ended up modifying an RS800 to produce the RS700
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Posted By: 29er397
Date Posted: 25 Apr 06 at 7:06pm
is it just me or are the prices of 600s going up?
------------- http://www.kielderwatersc.org - Kielder Water Sailing Club
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Posted By: Guests
Date Posted: 25 Apr 06 at 7:13pm
The ones advertised on Y&Y website seem about right in price (if not a little cheap).......how much have you seen them going for??
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Posted By: 29er397
Date Posted: 25 Apr 06 at 7:45pm
well last year i saw them ranging from £1000 - 3000 with the majority in the £1000-2000 bracket. they seem to be creeping up to £2000+ at the moment, i supose it might just be the boats for sale at the moment are better.
------------- http://www.kielderwatersc.org - Kielder Water Sailing Club
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Posted By: m_liddell
Date Posted: 25 Apr 06 at 8:55pm
Originally posted by 29er397
is it just me or are the prices of 600s going up? |
Yeah a while ago you could get them easily for < £1500...
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Posted By: Calum_Reid
Date Posted: 25 Apr 06 at 9:24pm
simple supply and demand rele aint it
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Posted By: Jamie600
Date Posted: 26 Apr 06 at 3:19pm
Last year the newest boat for sale was mine (number 861) for £2200. There are now several mid-900 sail numbers for sale so the prices shown will be higher
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Posted By: j5jdh
Date Posted: 28 Apr 06 at 12:30pm
I have been looking for an old one to learn in and generally get to grips with trapeze helming - I have seen one in Birmingham on a late 600 number for £1000 with covers and combi etc! Have also seen one go even cheaper (though without a road base!)
The trouble with the older ones at the lower end of the market is that they seem to have the old Angel masts which can cause problems and be quite pricey to repair (around £300 - £500)
Having spoken to a few people, the prices were falling until the recent column in Y&Y's Roll Tacks which noted the falling price - now people seemed to have realised its a lot of boat for not a lot of cash, and the demand is picking up, hence prices are on the up! - Certainly the rs association have seen a recent surge in the purchase of older boats - a possible class resurgence?
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Posted By: fizzicist
Date Posted: 28 Apr 06 at 1:10pm
I think the 600 is going through the same stage in its life cycle as the 300 did in the last two years - people realised it was a helluva lot of boat for the money (some 300's went for £1600!) and all the second hand one's got snapped up. With the continual launches of new designs, this is always going to happen, but it's great to see genuinely decent designs coming through in the end.
------------- Not all chemicals are bad. Without chemicals such as hydrogen and
oxygen, for example, there would be no way to make water, a vital
ingredient in beer.
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Posted By: 29er397
Date Posted: 28 Apr 06 at 6:18pm
This maybe true. I may be getting a 600 at the end of the season, do people think that the prices will have gone up considerably by then? i hope they dont!
------------- http://www.kielderwatersc.org - Kielder Water Sailing Club
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Posted By: fizzicist
Date Posted: 28 Apr 06 at 6:26pm
The 300 values moved rapidly over the course of one year when supply dried up. There's more 600's around so it may not be so dramatic
------------- Not all chemicals are bad. Without chemicals such as hydrogen and
oxygen, for example, there would be no way to make water, a vital
ingredient in beer.
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Posted By: Jamie600
Date Posted: 28 Apr 06 at 7:45pm
[QUOTE=j5jdh]
The trouble with the older ones at the lower end of the market is that they seem to have the old Angel masts which can cause problems and be quite pricey to repair (around £300 - £500)
It doesn't cost that much, it costs whatever your insurance excess is, when you claim for the mast breaking! 
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Posted By: Prince Buster
Date Posted: 28 Apr 06 at 8:28pm
or
you can find one with both angel and superspars mast, sell the broken
angel one to a frenchman for £150 and be very pleased with yourself   
------------- international moth - "what what?"
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Posted By: m_liddell
Date Posted: 30 Apr 06 at 3:34pm
Posted By: BOABS
Date Posted: 01 May 06 at 9:30pm
I think 600 prices have been strengthening for the past 4 months. I sold mine and several other mates have sold theirs since Jan for much better money than last year.
Such a lot of boat for the money they will be good value till the price doubles. Especially as the running costs are unbelievably low.
Get a decent mast, fill the dings in your hull, buy a new or s/h sail every 2 to 3 years and you'll go fast if you can sail it well.
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Posted By: mike ellis
Date Posted: 03 May 06 at 7:52pm
what sail number are 600s at now?
------------- 600 732, will call it Sticks and Stones when i get round to it.
Also International 14, 1318
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Posted By: Guests
Date Posted: 03 May 06 at 9:08pm
I could be wrong but i think they are in the 980 region.
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Posted By: timnoyce
Date Posted: 04 May 06 at 4:29am
I might be wrong.. but you are taking a pot shot at a cherub sailor for buying a "broken" carbon stick for £150. I think that it's a very sensible thing to do, if all people pulled their finger out and tried to fix broken equipment then maybe insurance premiums wouldn't be so much for the majority of people that don't try and 'play' the system.
(sorry for any offence... could consider myself as 'drunk in charge of a keyboard')
------------- http://www.facebook.com/bearfootdesign - BEARFOOT DESIGN
Cherub 2648 - Comfortably Numb
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Posted By: Black no sugar
Date Posted: 04 May 06 at 8:06am
Originally posted by timnoyce, who suffers from insomnia and should go sailing more in the fresh air during the day,
(sorry for any offence... could consider myself as 'drunk in charge of a keyboard') |
Ahhhhhhhh I understand why you posted so late! Where have you been!?!?
Still, I think you're right. Although many sailors are sensible with insurance claims, I've seen a few broken/ripped items being put together for an insurance claim when everyone else in the clubhouse was thinking how cheeky it was!
I suppose it's not so easy to check, is it, Noble Marine?
------------- http://www.lancingsc.org.uk/index.html - Lancing SC
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Posted By: MRJP BUZZ 585
Date Posted: 04 May 06 at 8:19am
its pretty easy to make a false claim really but as sumone else said it really bumps up premiums not only for that one person but for others too i think
------------- Josh Preater
http://www.bu22.co.uk"> BUZZING IS FUN
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Posted By: timnoyce
Date Posted: 04 May 06 at 11:55am
Where didn't I go should have been the question. If breathalised now i think i would still be over the legal posting limit! I was actually out on a uni sailing club social and i stupidly left my pc on when i was out.... couldn't help myself from having a cheeky browse before bed!
------------- http://www.facebook.com/bearfootdesign - BEARFOOT DESIGN
Cherub 2648 - Comfortably Numb
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Posted By: Prince Buster
Date Posted: 04 May 06 at 4:49pm
Originally posted by timnoyce
I might be
wrong.. but you are taking a pot shot at a cherub sailor for buying a
"broken" carbon stick for £150. I think that it's a very sensible thing
to do, if all people pulled their finger out and tried to fix broken
equipment then maybe insurance premiums wouldn't be so much for the
majority of people that don't try and 'play' the system.
(sorry for any offence... could consider myself as 'drunk in charge of a keyboard')
|
erm....before making forum enemies can i just make clear that i didnt
actually say "cherub owner". I said "Frenchman" but Liddel
editied my post so just in case there was any confusion!
------------- international moth - "what what?"
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Posted By: Guests
Date Posted: 04 May 06 at 10:16pm
Out of interest, if anyone near me is thinking about getting a 600 and wants to have a play in one then your all welcome to have a go in mine (below a force 5 that is, i want a boat back). Im based at Wilsonian S.C on the river medway http://www.wilsoniansc.org.uk - www.wilsoniansc.org.uk if you want to look us up. Ive now got all the mods on my boat....i think, so it will hopefully be up to your standards! Just drop me a pm if you're interested.
Thats all
Doug
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Posted By: j5jdh
Date Posted: 09 May 06 at 12:02pm
Speaking of selling 600 masts to cherub sailors - I have an old Angel mast for sale - its structurally sound, just corroding around the join between the two sections (approx 3 ft from the bottom of the mast) due to the aluminium/carbon reaction that eventually happens - I'm open to offers if anyone is interested??!!
Jonny
RS600 655
07980 841472 (Newcastle upon Tyne)
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Posted By: mike ellis
Date Posted: 09 May 06 at 5:51pm
alluminium carbon reaction? wouldnt think they'd react.
------------- 600 732, will call it Sticks and Stones when i get round to it.
Also International 14, 1318
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Posted By: Isis
Date Posted: 09 May 06 at 6:05pm
Unfortunately so...
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Posted By: m_liddell
Date Posted: 09 May 06 at 11:42pm
Topper made another stupid materials decision with the rivets on the topaz mast. How can manufacturers make such obvious screwups?
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Posted By: JimC
Date Posted: 10 May 06 at 7:15am
Originally posted by mike ellis
alluminium carbon reaction? wouldnt think they'd react. |
Electro-chemical reaction. Carbon laminates are electrochecmicaly active and erode aluminioum in the presence of water, very especially seawater. Corrding alimimium forms an oxide layer rather thick than the metal it replaces. So if you pu an alloy sleecve inside a carbon mast it goes fizz, fizz, expands, and breaks up the carbon laminate.
Originally posted by m_liddell
How can manufacturers make such obvious screwups? |
Usually because they are desperately paring costs and hope for the best. Very often they get away with it, cometimes they don't. Viz the thread elsewhere here about akicking strap fitting screwed into a wooden hog inside a glass floor. A common technique, but poor engineerng. Its usually got away with until a bit iof roit seeps down the scrtew threads or the boat gets especially big kicker loads.
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