What tension should standing rigging be?
What tension should standing rigging be?
Therefore, some mast bend is generally accepted and the mainsail is cut to fit the bend. A forestay tension of at least 15% of the cable strength is desirable. However, if this results in excessive mast bend it will be necessary to back off a bit.
How tight should my forestay be?
If you want tight forestay for weather work, reef the main and keep it tight. There is no backstay and the raked shrouds can only do so much. A loose main sheet with a lot of twist just about insures a loose forestay. Another option is to reef the jib more, to reduce the pressure on the forestay.
When should I tension my backstay?
It’s usual to ease backstay downwind and put on backstay tension when going upwind. If one over tensions the backstay, it can have a significant effect on the boat, depowering the mainsail. This may well negate the need for a reef.
How do you set a tension rig?
Whether it’s keel-stepped or deck-stepped and supported by forward lowers or a babystay, it’s the same basic procedure.
- Step 1: Get the mast upright athwartships.
- Step 2: Setting the rake.
- Step 3: Tighten the cap shrouds and backstay.
- Step 4: Tighten the lowers / babystay.
- Step 5: Check the rig under sail.
How do you tension a mast?
The top of the mast must be vertical in the yacht, so use the main halyard and measure carefully to a fixed point on each side of the yatch. Hand tighten the cap shrouds to centre the mast. The shrouds can now be tensioned by adjusting each turnbuckle in turn by approximately 3 turns at a time per side.
How tight should sailboat lifelines be?
They do NOT need to be tight, they are just trying to limit the tendency of some boats to rig really loose lines so that they can hike further. If you over tension the lines you will bend the stanchions.
What does backstay tension do?
On boats with rigs that bend, the backstay helps depower the mainsail. When you add backstay tension on this type of rig you are essentially compressing a straw. The mast bends forward at the middle pulling the luff away from the leech thereby flattening the sail.
What is a step down mast?
Raising and lowering the masts on a sailing ship is known as mast stepping. In sailing, it means to raise or lower the mast as needed, such as when nearing docks or low overhanging trees. Basically, before raising and using the mast, mast stepping must be performed by both builders and sailors.
What to do if your rig has a sweep spreader?
If your rig has swept back spreaders, shroud adjustment will affect lean, side bend, pre-bend, sag, and mast bend. Spreader sweep should be fixed; spreaders should not swing. Use pins &/or epoxy to secure swinging spreaders.
Do you tension runners or sweep spreaders on a fractional rig?
Tensioning the runners will straighten the mast. The procedures for tuning a fractional rig differ slightly from those for a masthead rig. There are many varied configurations of fractional rigs (swept spreaders versus straight, runners vs. no runners, etc.), which also makes it difficult to generalize.
How many rigs are in Selden’s hints and advice?
Seldén’s “Hints and advice” is an educational aid, but ultimately, the safety of vessel and crew depend on the care and judgement exercised by the yacht’s skipper. 5 Rig types 4 Masthead rig Fractional rig Deck-stepped mast Keel-stepped mast In-line spreaders Swept spreaders Single or multiple- spreader rigs 7 Fractional rig 6 Masthead rig
Where are the intermediate shrouds on a boat?
Intermediate shrouds:(D2-D3) Fitted on multiple- spreader rigs, and attached in the area of the upper spreaders. Fitted with links in the lower spreader tips (linked rig) or pass over the spreader tips and continue down to the deck (continuous rig).