SKU: 84570270586

Ronstan Series 55 Ratchet Orbit Block - Single - Swivel Head - Auto & Manual

Sale price$84.55 Regular price$93.94
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Description

Ronstan Series 55 Ratchet Orbit Block - Single - Swivel Head - Auto & ManualSeries 55 Ratchet Orbit Block Single Swivel Head Auto & Manual Automatic Ratchet Block Now you can enjoy the flexibility of setting up your ratchet blocks to suit yourself. Ronstan is the only company that offers a ratchet block with both auto and manual engagement modes. In the auto mode of the ratchet mechanism engages when load is applied, but switches off when it's released. This lets the sheet run out smoothly and freely great for rapid easing of

Series 55 Ratchet Orbit Block™ - Single - Swivel Head - Auto & Manual

Automatic Ratchet Block
Now you can enjoy the flexibility of setting up your ratchet blocks to suit yourself. Ronstan is the only company that offers a ratchet block with both auto and manual engagement modes. In the auto mode of the ratchet mechanism engages when load is applied, but switches off when it's released. This lets the sheet run out smoothly and freely-great for rapid easing of the sheet and for gybing asymmetric spinnakers. In manual mode, the ratchet mechanism can be switched on or off as required. This is the preferred mainsheet set-up for may top sailors. Try the block in both modes and see which you prefer - you really can't go wrong.


Awesome Ratchet Block Holding Power
Quite simply, Ronstan Ratchet Orbit Blocks™ have the highest holding power available. The sophisticated NC-machined sheave features Generation 2 of our sheave cross-hole geometry. Its holding power is up to 21:1, almost double that of our nearest competitior. The unique sheave design has 12 gripping faces which directly resist loaded line movement. Traditional designes have only 8 faces with an angled resistance to line movement. Our Generation 2 design has straight resistance faces which both distribute the load and minimise rope wear. These faces are offset from the radial line, to draw the rope down into the gripping area when under load.

Features:

  • Up to 20:1 holding power
  • Smooth easing of sheets
  • High performance cleating
  • Swivel shackle head for unlimited block rotation.
  • Stainless steel shackle head for ultimate durability and compatibility with harsh fixing points.
  • Automatic & manual ratchet block


Applications:
  • Mainsheet systems and spinnaker sheets on dinghies, sportsboats and small keel boats to 8M(26')
  • Halyard, vang and backstay applications on boats to 8M(26')
  • Spinnaker sheets on sportsboats and small keel boats (lateral lead blocks)


Materials:
  • Sheave: Hard anodised Aluminium
  • Ball Bearings: High compression strength carbon black Aceetal
  • Frame/Cheeks: Toughened, glass fiber reinforced Nylon
  • Rope Link: UV stabilized, multi-strand impregnated SK75 Dyneema®
  • Head fitting: grade 316 stainless steel


Specifications:
Sheave Ø: 55mm(2")
Max. Rope Ø: 10mm(1/2")
M.W.L.: 250kg(550lbs)
B. L.: 650kg(1,430lbs)
Weight: 82g(2.9oz)
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 84570270586

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"Project Management Mastery" describes the science and art of project management in a highly accessible and insightful way. This guide is written in understandable language for beginners and can also be a refresher for seasoned project managers. The guide fully describes the concepts of planning, execution, monitoring and control, and closure. Each chapter layers new information upon the foundations of the previous chapters by addressing basic concepts and building on details. This book uses project management terminology, but defines it so the concepts are clear, not fuzzy. Also discussed in depth is the importance of team members' responsibilities and accountability, and the importance of team motivation. There is a detailed exploration of the differences between various project management methodologies, such as Agile, Waterfall, SCRUM, Kanban and other models. Also described is the methodology of PRINCE2, used primarily in the UK and Europe, as well as hybrid project management models. There is guidance on which methodology works best for the project being planned. The guide also addresses the impacts and benefits of how using AI might impact the completion of routine tasks in the project management lifecycle. Also included is a comprehensive list of references at the end, for those wanting to dive deeper into the subject. Overall, this is a great guide for new project managers, as well as a solid refresher for those reentering the field, or looking for an updated perspective.
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