Mainsheet double bridle

   I've seen that the Supernova class and some others have an interesting arrangement with the mainsheet in that they have two bridles, one for the block with a becket and then another one for the last block which is usually a smaller block with the ratchet block being on the boom. What is the advantage to doing this?

Author	Message Share Topic Printable Version Delicious Digg Facebook Furl Google MySpace Newsvine reddit StumbleUpon Translate Twitter Windows Live Yahoo Bookmarks Topic Search Topic Options Post Reply Create New Topic
Glitcher7 Send Private Message Find Member's Posts Newbie Joined: 27 Oct 12 Online Status: Offline Posts: 23	Post Options Post Reply Quote Glitcher7 Report Post Quote Reply Topic: Mainsheet double bridle Posted: 04 Jan 17 at 1:21pm
	I've seen that the Supernova class and some others have an interesting arrangement with the mainsheet in that they have two bridles, one for the block with a becket and then another one for the last block which is usually a smaller block with the ratchet block being on the boom. What is the advantage to doing this?
	Farr 3.7 398 in build Laser 137012 Norfolk Punt 100

Do Different Send Private Message Find Member's Posts Visit Member's Homepage Really should get out more Joined: 26 Jan 12 Location: North Online Status: Offline Posts: 1312	Post Options Post Reply Quote Do Different Report Post Quote Reply Posted: 04 Jan 17 at 1:51pm
	Plenty of possible ideas going on but I'm having a punt on one here, ratchet on boom would give 180 degrees of wrap so best possible holding power.

Glitcher7 Send Private Message Find Member's Posts Newbie Joined: 27 Oct 12 Online Status: Offline Posts: 23	Post Options Post Reply Quote Glitcher7 Report Post Quote Reply Posted: 04 Jan 17 at 2:28pm
	That's certainly true. Could do that with the sheet still coming off the floor though but then again you're using lighter blocks in general with the small block being the last in the series. Saves a fitting on the floor as well.
	Farr 3.7 398 in build Laser 137012 Norfolk Punt 100

iGRF Send Private Message Find Member's Posts Visit Member's Homepage Really should get out more Joined: 07 Mar 11 Location: Hythe Online Status: Offline Posts: 6499	Post Options Post Reply Quote iGRF Report Post Quote Reply Posted: 04 Jan 17 at 2:53pm
	Have you got any closer pics of that arrangement or could post up a schematic? My arrangement has just ripped the top of the turret off my Solution set up so I need to get something sorted for the weekend, I doubt a new turret will arrive in time and that looks interesting.
	Snow Equipment Deals New Core Kite website

JimC Send Private Message Find Member's Posts Visit Member's Homepage Really should get out more Joined: 17 May 04 Location: United Kingdom Online Status: Offline Posts: 6662	Post Options Post Reply Quote JimC Report Post Quote Reply Posted: 04 Jan 17 at 3:01pm
	My guess is better alignment of the blocks, so less friction.

Glitcher7 Send Private Message Find Member's Posts Newbie Joined: 27 Oct 12 Online Status: Offline Posts: 23	Post Options Post Reply Quote Glitcher7 Report Post Quote Reply Posted: 04 Jan 17 at 3:59pm

	Farr 3.7 398 in build Laser 137012 Norfolk Punt 100

Glitcher7 Send Private Message Find Member's Posts Newbie Joined: 27 Oct 12 Online Status: Offline Posts: 23	Post Options Post Reply Quote Glitcher7 Report Post Quote Reply Posted: 04 Jan 17 at 4:01pm
	Similar arrangement on a Moth:
	Farr 3.7 398 in build Laser 137012 Norfolk Punt 100

Guests Send Private Message Find Member's Posts Guest Group	Post Options Post Reply Quote Guests Quote Reply Posted: 04 Jan 17 at 4:27pm
	The block on the boom is the last block 'adding purchase', with the floating block just a turning / routing block. To get most benefit from the ratchet you want it at your end of the purchase system, but you also want a decent 'wrap' on the block. Moving it to the deck doesn't get it any closer to you in the purchase system, but just mean less wrap, so I guess that's why.

Alistair426 Send Private Message Find Member's Posts Far too distracted from work Joined: 02 Jun 08 Location: Vatican City State Online Status: Offline Posts: 201	Post Options Post Reply Quote Alistair426 Report Post Quote Reply Posted: 04 Jan 17 at 7:17pm
	Two oft quoted advantages from Supernova-ists are that i) it removes a source of tangles (ratchet on floor) and ii) with the end of the mainsheet coming from higher up, it provides greater support whilst hiking. I think they are mostly secret Mothies, if you ask me .

Sam.Spoons Send Private Message Find Member's Posts Really should get out more Joined: 07 Mar 12 Location: Manchester UK Online Status: Offline Posts: 3401	Post Options Post Reply Quote Sam.Spoons Report Post Quote Reply Posted: 05 Jan 17 at 12:35am
	Sheeting off the boom, skiff style, removes yet another potential tangle and gives even more support for hiking.... I've converted my Blaze to rear bridle/OTB after a single race (for completely different reasons BTW but that twin bridal method would not work as well on the Blaze). The Spice will remain 'conventional' centre mainsheet as it seems to work best for that boat.