Need help?Do you have a question about the J/Boats J/70 and is the answer not in the manual?
Details the J/70's compliance with Category C CE Requirements for daytime navigation.
Explains CE categories and outlines the J/70's recommended loading capacity.
Details the E-glass and foam sandwich construction of the hull and deck.
Explains the function and design of the J/70's lifting keel for launching.
Describes the materials and components of the J/70's keel.
Details the keel safety plate and the operation of the kelp cutter.
Describes the custom aluminum keel crane with winch for keel operations.
Covers the construction and handling of the rudder, tiller, and steering components.
Details the carbon fiber bowsprit and its associated fittings.
Overview of deck-mounted hardware and access plate locations.
Explains the 4:1 system for adjusting jib halyard tension from the cockpit.
Covers the Harken below-deck jib furler system and its operation.
Describes the Dyneema cockpit safety lines and their purpose.
Step-by-step guide for installing cockpit safety lines.
Information on the Marlow Ropes running rigging package.
Procedures for preparing components prior to stepping the mast.
Safety and procedural guidance for raising the mast.
Steps to complete after the mast has been successfully stepped.
A step-by-step checklist for preparing the boat before launching.
Procedures and safety warnings for launching the boat from a ramp.
Instructions for safely hauling the boat from a ramp.
Guidance for using single point lifts at clubs or boatyards.
Table of recommended shroud tensions based on wind speed.
Advice on mainsail and jib sheeting techniques.
Procedures for deploying, hoisting, and retrieving the spinnaker.
Detailed steps for connecting spinnaker tack, sheets, and halyards.
Recommended list of essential spare parts to carry on board.
General guidelines and frequency for boat inspections and professional surveys.
Focus on critical keel and keel floor area inspection after groundings or trailering.
Advice on avoiding keel stress during docking and mooring.
Guidance on bilge care, hydrolysis, and fastener penetration issues.
Inspection and maintenance advice for standing rigging.
Inspecting headstay, fasteners, and securing clevis pins to prevent mishaps.
Checking running rigging, especially high-load lines, for wear and tear.
Importance of proper rig tuning for mast performance and longevity.
To Next Page
General