545 Rigging details

Following are the details for the lines for our 575 which should very similar to the 545.

Main halyard = 57 meters , 12mm, dyneema

ST halyard = 52 meters, 12mm dyneema

1st Reef = 34 meters 14mm double braid.

2nd Reef = 48 meters 14mm double braid.

Main sheet = 55 meters 14mm double braid (when using the German sheeting system with lines to both port and stbd winches).

Vang = 21 meters 12mm double braid.

Topping lift = 50 meters 10mm double braid- we found this too short and changed to 60 meters and also too small to use as a spare main halyard so used 12mm dyneema.

ST JIB sheet = 40 meters 14mm double braid.

Outhaul = 22 meters 14mm double braid.

Generally Dyneema or similar lines are used where you don't want stretch - so Dyneema halyards are considered a benefit because once set to the desired tension these lines do not stretch. For sheets it is thought to be better to have some stretch so you can save money by using double braids. Using thinner lines can reduce friction so using a higher spec lines which is thinner can be better. But you would not need to go to the expense of Dyneema. Sometimes going to too thin a line may cause slippage with clutches. I find Dyneema much easier to splice than most double braids style lines but the cost is so much higher. There are also different versions of Dyneema with different strengths and costs.   

I agree with Wayne's reply.    I upgraded my mainsheet to 14MM Endura Braid as its a pretty big main and I wanted something with a bit less stretch, however.

There is a page in my 575 manual that looks like this....  you should have one...