Kicker ( vang) systems

   We have a 16 to 1 on the five-oh.
The cascade initially provides less friction than a 2-1 system would, under the top loads (we also have a sizeable pulley slung off the boom).  Agreed that the final pulley does travels a distance - in our case, the full length of the plate case.  I guess that many classes would struggle, unless they mounted a pulley on the inside of the prow...!!
Chas

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Chas 505 Send Private Message Find Member's Posts Posting king Joined: 19 Dec 06 Location: United Kingdom Online Status: Offline Posts: 119	Post Options Post Reply Quote Chas 505 Report Post Quote Reply Topic: Kicker ( vang) systems Posted: 05 Apr 07 at 9:06am
	We have a 16 to 1 on the five-oh. The cascade initially provides less friction than a 2-1 system would, under the top loads (we also have a sizeable pulley slung off the boom). Agreed that the final pulley does travels a distance - in our case, the full length of the plate case. I guess that many classes would struggle, unless they mounted a pulley on the inside of the prow...!! Chas
	Life is too short. Work Hard; Play Hard; Sail a 505

BigFatStan Send Private Message Find Member's Posts Groupie Joined: 31 Jan 06 Online Status: Offline Posts: 78	Post Options Post Reply Quote BigFatStan Report Post Quote Reply Posted: 05 Apr 07 at 1:27pm
	Mine is an Osprey, also 16:1. 2:1 through a block on the boom, another 2:1 cascaded off that and a two ended 4:1 as the last element - Harken 16mm air blocks are fine for everything except the boom block - that would not be the case in other arrangements! Since the top block travels very slowly under biggest load a plain bearing wire block works perfectly here. I get plenty of throw without needing to add purchases along the case.

radial179102 Send Private Message Find Member's Posts Visit Member's Homepage Posting king Joined: 28 Mar 05 Location: Wales Online Status: Offline Posts: 198	Post Options Post Reply Quote radial179102 Report Post Quote Reply Posted: 05 Apr 07 at 5:34pm
	I sail a Europe and I don't know what the purchase is but it is a lever bar system. Works quite well, a lot of force but not much variation
	Villan is my Bitch ;)

redback Send Private Message Find Member's Posts Visit Member's Homepage Really should get out more Joined: 16 Mar 04 Location: Tunbridge Wells Online Status: Offline Posts: 1502	Post Options Post Reply Quote redback Report Post Quote Reply Posted: 05 Apr 07 at 11:11pm
	Yes I'd forgotten Europes. I was tempted to mention a lever system in my previous posts. I used to sail Scorpions and the small range of movement in its boom made it ideal for a lever system. I remember a very effective and low friction system I had made from a 250mm lever with about a 40mm throw between 2 wire strops. I think with a 2:1 on the end of the lever it gave me easy adjustment and about 12:1. I remember being so impressed with levers I had one on the end of the boom to control the foot outhaul - it worked a treat.

Lukepiewalker Send Private Message Find Member's Posts Really should get out more Joined: 24 May 06 Location: United Kingdom Online Status: Offline Posts: 1341	Post Options Post Reply Quote Lukepiewalker Report Post Quote Reply Posted: 06 Apr 07 at 5:50pm
	That's probably about 24:1 by the looks of it, 4:1(ish) from the lever and 6:1 from the purchases. Levers are invaluable in the limited space on boats such as the Finn, Europe and OK. I think they went out of fashion on most boats as block technology has moved on and higher purchases are now practical than they used to be. My 1976 national 12 had a lever on.

PeterV Send Private Message Find Member's Posts Posting king Joined: 24 Feb 07 Location: United Kingdom Online Status: Offline Posts: 131	Post Options Post Reply Quote PeterV Report Post Quote Reply Posted: 06 Apr 07 at 7:30pm
	My Finn Lever is 5.7 :1, so with a 3:1 off that and a 2:1 final I have 34.2:1.
	PeterV Finn K197, Finn GBR564, GK29 Warsash

Lukepiewalker Send Private Message Find Member's Posts Really should get out more Joined: 24 May 06 Location: United Kingdom Online Status: Offline Posts: 1341	Post Options Post Reply Quote Lukepiewalker Report Post Quote Reply Posted: 06 Apr 07 at 8:26pm
	Of course some levers allow easy alteration of the power by having several pin holes on the lever. Or you could go the whole hog and get the Star arrangement with the curved track and a traveller car!

olly_love Send Private Message Find Member's Posts Really should get out more Joined: 18 Jan 05 Location: United Kingdom Online Status: Offline Posts: 1145	Post Options Post Reply Quote olly_love Report Post Quote Reply Posted: 06 Apr 07 at 9:00pm
	the star system is amazing. but can be a bit of an arse i taught a guy in a europe over the weekend and was playing round with his rig settings off the water. i didnt realise how tweaky it was. looks like a nice boat to sail. even if it has very little freeboard aft
	TWO FRANK-Hunter Impala

redback Send Private Message Find Member's Posts Visit Member's Homepage Really should get out more Joined: 16 Mar 04 Location: Tunbridge Wells Online Status: Offline Posts: 1502	Post Options Post Reply Quote redback Report Post Quote Reply Posted: 06 Apr 07 at 10:24pm
	Lovely boat the Europe, much more adjustable than a Laser, too small for me though.

Guest Send Private Message Find Member's Posts Newbie Joined: 21 May 04 Location: United Kingdom Online Status: Offline Posts: 0	Post Options Post Reply Quote Guest Report Post Quote Reply Posted: 06 Apr 07 at 10:39pm
	We use a lever on the MPS with a 2:1 ... works great. Similar on the 49er.