26th June 2016 at 11:09am #1401KazrobParticipant
I’m still trying to get to grip with having a centre jammer which I’ve never really used on a singlehander before. Apart from not always having it follow me round during a tack etc I gave a couple of specific questions I’d like to ask.
Downwind do people take the mainsheet between the block and the jammer (which seems to tie me in knots when changing back to go through the cleat) or just suffer the tons of extra friction of pulling ‘up’ through the fair lead?
When upwind it seems like I can’t quite get my feet in the straps between the jammer, the centreboard case if they are forward jammer. Do people generally hike off the straps behind the jammer and then just lean forward to keep your weight forward?30th June 2016 at 10:30am #8907
a very tricky thing to get right, centre jammers:- position f/a, height, clearance around toe straps, angle of jammer relative to sidedecks, all come into it. I have tried to get on with them but gave up and just use a ratchet block and jammers on the side decks.
Simpler and never goes wrong. Also saves knees getting sliced!
One note though, when sailing, we OKs have to handle the mainsheet ‘through the final block’, not single ended like the Finns. (It’s in the rules).
Cheers, Bob1st July 2016 at 11:38am #8908
Not strictly true. The rules actually say when pumping (to initiate surfing) the sheet should be taken through the bottom block. There have been many past discussions saying normal trimming can be taken by sheeting from block on boom1st July 2016 at 6:42pm #8909KenParticipant
Not strictly true. The rules actually say when pumping (to initiate surfing) the sheet should be taken through the bottom block. There have been many past discussions saying normal trimming can be taken by sheeting from block on boom
Correct. I had this pointed out to me last year when I told Tony Woods off for sheeting from the Boom. But you are allowed.
Well done Mr Biscombe nice to see you keeping abreast of things from afar.2nd July 2016 at 1:41am #8910
Must admit I always believed you had to sheet through bottom block and still do 99% of the time. Perhaps it’s another of these rules everyone used to believe was true but the rule book lawyers found the rules where badly written and didn’t actually say what they were meant to say.
On original post, can’t say I notice any problem with toe straps/feet/jammer but maybe after 25years or so sailing with centre jammer just get used to it.
Or perhaps my straps are further outboard.
One problem I do sometimes have is in strong winds with main cleated if there is some play in ball bearings it is difficult to unclear as the angle changes under tension. Quite often use foot to assist cleating/uncleating action2nd July 2016 at 9:56am #8911KazrobParticipant
The man trouble I have is on a run when you have to pull ‘up’ through the fairlead the friction make it really hard. However I think I’ve found the answer via The Euro OK chat page on FB – a fairlead with a big roller above the cleat.
For the hiking I think I found a really good way to hike on Thursday which makes it less of an issue but I’m not fit enough to do it for long!2nd July 2016 at 10:24am #8912
Its all part of the charm of the OK. Not the easiest or most comfortable, but very rewarding when you get it right6th July 2016 at 9:04am #8913
well, I live and learn!
Is there anything in the New Rules to make that clear? Or is it a case of ‘dark rules’ that only those in the know, know about……
Ho ho, Bob.6th July 2016 at 11:24am #8914Bill BParticipant
I have always been puzzled about why the pumping rule is misread. It has always said when the sheet is pumped it must be through the block on the boat and at least three parts of the mainsheet – I may be wrong but I do not recall it ever saying that the sail may only be trimmed through the block on the boat.
This is not a mystery or something that has been cooked up and hidden for years but a rule to control pumping to promote planing – from way back when more than one pump on a wave was acceptable.
Bill6th July 2016 at 12:12pm #8915KenParticipant
Rule is as written,
On a free leg of the course, when surfing (rapidly accelerating down the front of a wave) or planing is possible, the boat’s crew may, in order to initiate surfing or planing, pump the sheet once for each wave or gust of wind. When the sail is pumped it shall be done through the bottom block with at least three parts of the mainsheet system.
As I see it and how it was pointed out to me By Tony Woods, Pumping is only allowed as above, there is No mention of trimming in the rules. Normal adjustment of the boom and sail. Therefore by default you can trim direct from the boom. Not in the rules that you cannot.
Difficult enough for me trimming from the bottom block lets alone the boom.6th July 2016 at 8:04pm #8916
Does that mean you can ‘trim’ the sail direct from the boom, even when planing? but you can’t ‘pump’ it from the boom?
I’d like to be a fly on the wall in that protest hearing……!
Bob7th July 2016 at 1:24pm #8917
Yes which is why the rule is badly written, & why in the past everyone understood it to mean always trim through bottom block.7th July 2016 at 6:50pm #8918
perhaps, as the New Rules are being put together, that rule could be changed to something simpler. Like ‘trimming or pumping must be done only through the final block with a minimum of three parts etc.’. Or delete the whole thing altogether.
I really dislike rules that change for special conditions, or are down to someones’ opinion when they apply, like ‘when surfing or planning conditions exist’, which can vary across a course.
Better to go the Finn route and let the R.O. decide. At least everyone would be aware of the rules for that race.
Bob8th July 2016 at 10:12am #8919
I agree, but being the only Thai OK sailor that’s a member of an OK national association (GB) would be difficult for me to put it forward for change.
It’s a bit like the rules on roll tacking (can’t come out of tack faster than went into it)
When roll tacking was becoming a contentious thing in Enterprises (40+? Years ago) I was of the belief that if by the way you performed the tack you were able to go faster it was simply a legitimate skill.
I think you should be allowed to trim/initiate surfing from any part of mainsheet. Trouble is I’d have to start building my muscles up as I have trouble sheeting through bottom block with my weak right arm and seriously considered adding extra purchase.8th July 2016 at 1:25pm #8920
Oh yes, the ‘good old days’.
I remember the IYRU rules on ‘No pumping, ooching, or rocking’ (ooching was lunging forward and stopping, to propel the boat forward)! Also I remember the great John Oakley being protested for moving to the middle and out to the side decks repeatedly in a light breeze. His defence was that he was trying to Stop the boat rocking ‘in an awkward sea’, and he got away with it!
Well, we sail for fun after all….
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