Any timber shipwright in any country can build, which means if you do not have the time or inclination to build it yourself, you can still own your personal, custom-built Class Globe 5.80 for shorthanded racing, club racing, ocean voyaging or micro cruising. The adventure awaits!
Update No. 02 – May 10, 2020
Plywood glass epoxy requirement for Globe 5.80
The type of plywood and thickness of plywood you choose will require following these rules. Failure to do so may mean non-registration of your Class Globe 5.80.
The two different parameters of various type plywoods are VERY important. Strength and thickness both vary!
Plywood 9mm + laminate 600 G / m2 gives a thickness of about 10 mm.
9mm Okume plywood + 170 G / m2 laminate gives the same approximate strength as 10mm Okume plywood.
This is important when determining the technical way to check the 5.80 yacht. If you want to strictly check the thickness of plating, in some cases it will have to be supplemented with laminate over the necessary strength.
Class Globe 5.80 Ruling:
Keep plywood thickness tolerance. Deck minimum 8 mm. Sides 9mm or 10mm.
There is NO mistake in the drawing (Sheet 3). The reinforcement weights for pine, birch, mahogany and other plywood with similar strength are given by hand on the plans.
Reinforcement weights (larger) for clearly weaker Okume plywood are given separately on the plan.
Yes, that’s right, Okume plywood needs to be laminated with 1000 G / m2. Then its strength will be similar to a laminated Pine plywood 200 G / m2.
I recommend the following lamination principles:
1. Deck made of 8mm plywood – lamination as in the documentation.
2. Hull made of 10mm plywood – lamination as in the documentation.
Plywood thicknesses other than in documentation:
3. Hull made of 9mm Okume plywood – laminating 1170 G / m2
4. Deck made of 9mm Okume plywood – lamination 430 G / m2
5. Hull made of 9mm strong plywood (pine, mahogany, similar) – laminating 450 G / m2
Update No. 01 – April 14, 2020
Important Notes on the Globe 5.80
Are you planning to do the Mini Globe Race 2025 or TRANS-OCEAN Races?
1. YOU MUST BUILD THE LAYOUT WITH THE WATERTIGHT BULKHEAD UNDER THE MAST (this gives BIGGER forward buoyant compartment).
2. You will need to build another crash box behind the fist, back to frame E.
3. You must fit no more than two windows on each cabin side.
4. You must be able to fit through your forward hatch in wet weather gear.
Builders notes Class Globe 5.80 requirements for class registration
The following notes are to be added to the Class Globe 5.80 Rules on the 5.80 website shortly.
- Design, build and fitting of the SS Bowsprit as drawn is compulsory. It includes the Gennaker take off and is easily removable when required. The stem bow chain plate will include the mount as drawn for a timber bowsprit.
- Design and fitting of aft dagger boards is free to your interpretation, NOT compulsory, but the transom must be strengthened as required if fitted.
- The shown stainless steel pushpit, pulpit and stanchions (with twin braces) are mandatory minimum as drawn. They may be higher and have extra bracing, or more stanchions etc, but not less.
- The foredeck hatch shall be 50cm x 50cm and must be a commercial brand name hatch with inside/outside opening locks.
- Four x 150mm (minimum length) metal mooring cleats and strong backing plates MUST be fitted where shown (bow cleats strong enough to tow the boat) and all safety harness strong points show must be fitted in those positions.
- Secure handrails (metal or wood) must be fitted in all places shown on the deck plan sheet (Including the observation pod if fitted). Those on the cockpit coaming may be fitted further out, but must extend the length of the cockpit.
- The watertight door on the main bulkhead MUST be truly watertight and lockable from both sides. If not, you will not achieve 5.80 Class status. If using a foredeck hatch on its side to make a watertight door, it should open inwards and be fitted No LOWER than 5cm above the forepeak bunk and lock from both sides. Both watertight bulkheads must have an opening/closing drain at the bottom to allow pump out of water from main saloon compartment.
- At least two x minimum 75mm clear opening ‘seagoing’ vents, that can be sealed shut, must be fitted in the main cabin. Minimum size of the mast hatch is 175 x 175 and must be a commercial brand.
- The break apart mast sleeve on the mast is optional. At least one running pole must be carried.
- Galley and chart table area as designed must be fitted as a minimum but may be extended or modified and extra locker storage built. The bunk risers must not change, but the bunks may be shortened 20cm from the front to 2m allowing bigger chart/galley area if equipped. Port/stb bunk risers MUST be watertight to stop fee-surface water movement.
- Cockpit seat lockers into the aft compartment must be 100% waterproof, with secure locks.
- The welding of the steel keel plate to the base plate must be done by certified welders and the deep penetration fillet weld must be a minimum of 14mm or will not be approved. Only surface filler may be applied to lead bulb. Keel bolts and steel plate may only be painted. Lead bulb should be removable.
- Only those mast and boom sections on the materials list are currently approved. No others are accepted at this time. Tapering is allowed. The 5.80 SS mast-boom fittings, spreader drawings etc are optional.
- The windows as drawn are the absolute maximum size allowed and for the 5.80 ocean events you cannot fit the forward one on each cabin side. You may fit less or smaller windows, but you MUST have at least one window on each cabin side. One opening window each side of cabin and observation pod is allowed.
- The companionway opening hatch can be changed or modified, but the lower opening must not be lower than currently shown on the plans. The observation pod is optional and not compulsory, a bubble or other structure could be fitted.
- 8mm deck marine plywood may be substituted for 9mm marine plywood. 10mm hull marine plywood may be substituted for 9mm, but a full second layer of glass/epoxy must be applied.
- When the first batch of SS rudder gudgeons and pintles, SS chain plates and SS bowsprit supports are manufactured with your Registered Number engraved on them, you will be advised. You then have four weeks to purchase them for a 33% discount. After that the discount is cancelled.
- The mast, boom and rigging plan dimensions are strictly adhered to. The running backstays (only used for big gennaker, or in storms) may be high tech ROPE. Minimum standing rigging shown. Extra rigging such as twin forestays are allowed.
- Sails as drawn on the plan are the maximum size allowed. A sail makers instruction sheet will be developed and released on 1 June 2021. DO NOT START making your sails until you have this 5.80 Sail Control Sheet. The sail area is strictly controlled and a Compliance Declaration from the sailmaker will be required and each sail labeled with a registration number. A trysail is optional.
- Make sure your life raft will fit if stored vertical against the transom. The cockpit sole life-raft recess is NOT compulsory.
If you have any questions, please remember to message on the 5.80 Facebook page. It is much easier for us to keep track and save time. Happy building. Don.