INTERNATIONAL ONE METRE CLASS

1 An official measurer shall carry out certification control by checking all items on the boat for compliance with the IOM class rule against the certification control - checklists for Hull & Appendages and Rig & Sail and signing this form to that effect. 2 The boat shall comply with all the class rules in Sections D, E, F, G and H even if the rules are not mentioned on the certification control - checklists for Hull & Appendages and Rig & Sail. 3 Within 4 weeks of initial certification control, ONLY this Certification Control Form, when completed and signed by the official measurer, by the builder and by the owner, shall be sent with an SAE for return of the certificate, to the IOM Registrar, Nick Cowern, 17 Orchard Court, Longniddry, East Lothian, EH32 0PE. 4 If the official measurer has any doubt that a part of the hull, appendages, rig or sails does not conform to the class rules, he shall not sign this certification control form and shall take advice from his District Senior Measurer or the MYA Technical Officer. 5 Hull registration number 6 Date of initial certification control Rigs included 1 2 3 (Circle if included & cross out if not included) 7 Boat's name 8 Owner's name MYA (GBR NCA membership) number 9 Owner's address INTERNATIONAL ONE METRE CLASS Certification Control Form 10 Design name 11 Designers' name(s) 12 Builders' name(s) 13 DECLARATION BY THE BUILDER (if not attaching a 'certificate of compliance') - To the best of my knowledge 1) Only materials listed in D.2.1 have been used in the construction of this hull, no materials with density greater than 11,340 kg/cubic metre have been used in the construction of the hull appendages. 2) The aluminium alloys used for mast and boom spars (excluding their fittings and any corrector weights) are grades listed in F.3.1 & F.4.1, the wall thickness tolerances in F.3.4 & F.4.5 are compliant. Any weights attached to the mast spar above the lower point are of a density exceeding 8000 kg/cubic m Builder's signature Date 14 DECLARATION BY THE OWNER I undertake to maintain this boat in compliance with the class rules and that additional and replacement rig/sails, alterations or repairs to equipment required by the certification control - checklists to be measured shall be checked by an official measurer before use. 15 Owner's signature Date 17 DECLARATION BY THE OFFICIAL MEASURER I confirm that I have checked all the items on the boat for compliance with the IOM class rule against the certification control - checklists for Hull & Appendages and Rig & Sail, and that to the best of my knowledge, the boat complies with the class rules covered by these checklists. 17 Name of official measurer (BLOCK CAPITALS) 18 World Sailing - Member National Authority RYA 19 Official measurer's signature Date 2017 Model Yachting Association MYA IOM Certification Control Form 2017-05-07 Effective: 13th May 2017

INTERNATIONAL ONE METRE CLASS CERTIFICATION CONTROL - HULL AND APPENDAGES CHECKLIST GENERAL NOTE TO OFFICIAL MEASURERS 1 Certification control shall be carried out in accordance with the Equipment Rules of Sailing except where varied in the class rules. 2 The hull and appendages shall comply with all the class rules in Sections D and E even if some of the rules are not mentioned on this form. Refer also to the IOM Questions and Answers (Q&A) for reference to previous interpretations. Check IOMICA web site http://www.iomclass.org/iom-questions-and-answers-qa-2/ for Q&A hull and appendages updates. 3 If the measurer has any doubts that the hull or appendages comply with the class rules, advice shall be taken from his District Senior Measurer or MYA Technical Officer. 4 Tick the boxes for each item as the item is checked or mark N/A if not applicable Hull Registration Number HULL 1 D.1.4 Is the registration number marked in an easily visible location on a non-removable part of the hull, excluding fittings and corrector weights, by any of : painting, engraving, bonding, moulding? 2 D1.5 Is there a deck limit mark, of 5 mm minimum diameter, displayed on the centre plane of the hull near the mast position? 3 D.2.1(a) Is the hull made of and joined using only the permitted materials: metal, wood, glass fibre, resin, wood based products, adhesive, varnish, paint, elastomer, thermoplastic, film covering materials that may be reinforced with polyester fibres. 4 D.2.1(b) With the exception of elastomer, are there no expanded, foamed, or honeycombed materials? 5 D.2.2(a) Is the hull a monohull? 6 D.2.2(b) Except for trunking for the keel and rudder, does the hull have no: (1) voids in the water plane and/or underwater profile? (2/3) hollows in the plan view and/or underwater profile that exceed 3 mm? (4) transverse hollows in the under surface of the hull that exceed 3 mm when tested parallel to the H.2 water plane as in figure H.2? 7 D.2.2(c) Is there a minimum of 10 mm of elastomer in the foremost part of the hull? 8 D.2.2(d) Is the rudder attached to the hull aft of the keel? 9 D.2.4(a) D.2.1 Are fittings which contribute to the stiffness and/or strength and/or watertight integrity of the hull made only of permitted materials: metal, wood, glass fibre, resin, wood based products, adhesive, varnish, paint, elastomeric material, thermoplastic? 10 D.2.4(b) Are ball and/or roller bearings only used in these items: sheet control line blocks, mainsail boom sheet blocks, headsail boom sheet blocks? 11 D.2.3(c) Are all fittings inboard of the hull shell or deck? 12 D.2.5 Does the remote control equipment consist only of some or all of the following: one or more receivers, one rudder control unit, one sheet control unit, battery cells, electric cables, connectors, switches, one device to indicate voltage indication and/or built in voltage indicators? APPENDAGES 13 E1.1 Are the appendages limited to a rudder and a keel, which may comprise a fin and a bulb? 14 E.3.2(a) Are the keel and rudder removable from the hull? 15 E.3.2(b)(1) Are the keel and rudder unconnected? 16 E.3.2(b)(2) Are the keel and/or rudder constructed without articulation? 17 E.3.2(b)(3) Do the keel and/or rudder have no openings through which water could flow when in use? 18 E.4.1 Is the largest transverse dimension of the keel 20 mm or less, measured at any point 60 mm or more above the lowest point of the keel? 2017 Model Yachting Association MYA IOM Certification Control - Hull and Appendages Checklist 2017-05-13 page 1 of 1 Effective: 13th May 2017

PARTS 1 F.1.1 GENERAL 2 F.2.3 3 F.2.4(c) 4 F.2.4(d) Perpendicular to the axis of rotation, is the cross section of any non-circular component of a kicking strap, or gooseneck, 20mm or less? MAST 5 F.3.1(a) 6 F.3.1(b) 7 F.3.2(b) Is the principle material of the spar (excluding its fittings and corrector weights) aluminimum alloy or wood? Are any other materials on the spar limited to: adhesive, anodising, paint, powder coat, varnish, wax? Is the spar section (excluding its fittings and corrector weights) between upper point and lower point: of circular outer shape and constant except for: internal sail track, local cutaways, openings for fittings and/or rigging, internal and/or external spar joiner? 8 F.3.3(a) Are these fittings present: mainsail halyard(s), fitting(s) or openings, shroud fitting(s) and/or openings, gooseneck, kicking strap fitting? 9 F.3.3(b) Are only these optional fittings present: wind indicator, backstay crane, headsail stay, headsail halyard fitting, pair of spreaders, mast spar rings or loops, mast spar jackstay fittings, mainsail tack fittings, mast strut & fitting, checkstay fittings, deck fitting, heel fitting, corrector weights? 10 F.3.3(c)(2) Do the mainsail boom spar and the kicking strap have pivot points aft of the mast spar in the regions adjacent to these points? 11 F.3.4 Is the lower point to upper point dimension within the limit set in F.3.4? 1600 1180 880 12 F.3.4 Is the lower edge of the headsail stay limit mark at the foreside of the spar to the upper point dimension correct? 220 160 120 13 F.3.4 14 F.3.4 If there are checkstays, is their rigging point less than or equal to 100 mm above the mast heel point? Between lower point and upper point: (1) Is the diameter of the spar, (excluding its fittings and corrector weights), 10.6 mm or greater? (2) Is the difference between the largest and smallest diameters less than or equal to 0.3 mm? 15 F.3.4 16 F.3.4 17 F.3.4 BOOMS 18 F.4.1(a) 19 F.4.1(b) 20 F.4.2 21 F.4.3/4 22 F.4.3/4 INTERNATIONAL ONE METRE CLASS CERTIFICATION CONTROL - RIG & SAIL CHECKLIST GENERAL NOTE TO OFFICIAL MEASURERS 1 Certification control shall be carried out in accordance with the Equipment Rules of Sailing except where varied in the class rules. 2 The sails/rigs shall comply with all the class rules in Sections F, G and H even if some of the rules are not mentioned on this form. Refer also to the IOM Questions and Answers (Q&A) for reference to previous interpretations. Check IOMICA website http://www.iomclass.org/iom-questions-and-anwers-qa-2/ for Q&A rig and sails updates. 3 If the official measurer has any doubts that the rig or sails comply with the class rules, the sails shall not be signed, but advice shall be taken from his District Senior Measurer or the MYA Technical Officer. 4 Tick the RIG 1, RIG 2 and RIG 3 boxes, as appropriate, as the item is checked. Hull Registration Number Does the rig comprise only: one mast, one mainsail boom, one headsail boom, standing rigging, running rigging and fittings? Do all parts of the rig function in a way that is normal for items of their type? Are any ball or roller bearings used only in: headsail boom sheet blocks, headsail boom swivel, kicking strap fitting, gooseneck, mainsail boom sheet blocks? Are the lengths of any spar (excluding fitings and corrector weights) joiners less than or equal to 100 mm? Is the total length of cutaways between the lower point and upper point less than or equal to 100 mm? Is the width of all limit marks between 3 and 10 mm? Is the principal material of the spars, (excluding fitings), aluminium alloy or wood? Are any other materials on the spars limited to: adhesive, anodising, paint, powder coat, varnish, wax? Except for the last 10 mm at each end and openings for fittings and rigging is the section of spars constant? Are these fittings present: mainsail clew fitting(s), mainsail boom sheet fitting(s), kicking strap fitting, headsail tack and clew fittings, headsail boom sheet fitting(s), headsail boom swivel and/or its fitting? Are only these optional fittings present: mainsail tack fitting(s), gooseneck fitting, openings for mainsail boom sheet fitting, headsail stay fitting(s) or opening, topping lift fitting(s) or opening, counterweight and its attachment, opening(s) for headsail boom sheet fitting? 23 F.4.5 Ignoring the last 10 mm at each end and fittings, is the spar able to pass through a 20mm ring gauge? 24 F.4.5 Is the difference between smallest and largest value along the spar, excluding fittings, 0.5mm or less? 25 F4.5 Is the curvature measured between points on the top of the spar 10mm from each end, no more than 3mm? STANDING RIGGING 26 F.5.1 Except for terminations and the headsail boom swivel, are materials limited to steel and/or polymer? 27 F.5.2(a) Are these items of standing rigging present: pair of shrouds, headsail boom swivel? 28 F.5.2/3 Are only these items of optional standing rigging present: pair of checkstays, headsail stay less than 1mm diameter, mast spar jackstay less than 1mm diameter? 2017 Model Yachting Association MYA IOM Certification Control - Rig and Sail checklist 2017-05-13 page 1 of 2 Effective; 13th May 2017

RUNNING RIGGING 28 F.6.2(a) Are these running rigging parts present: mainsail boom sheet, mainsail boom kicking strap, headsail halyard if no headsail stay, headsail boom sheet, backstay? 29 F.6.2/3 Are only these optional running rigging and fitting parts present: mainsail halyard(s), mainsail clew trim line, mainsail tack trim line, headsail halyard(s), headsail clew trim line, headsail tack trim line, headsail boom topping lift, headsail boom topping lift restraint line(s), terminations, length and tension adjustments, mainsail and/or headsail boom sheet blocks, wind indicator, sheet control line? SAILS - GENERAL 30 G.2.2(b) If the sails have been certificated by the manufacturer awarded with a special license, indicate here then omit steps 30 to 69. 31 G.3.1(a)(1) Are all sails soft sails and single ply sails? 32 G.3.3/4.3 If there are seams, are their widths less than or equal to 15 mm? 33 G.3.2(a)(1) Is the deviation of all seams from a straight line between luff and leech no more than 10 mm? G.4.2(a)(1) 34 G.3.2(b) Are the parts of the sails joined or added using only welding; gluing; bonding with self- adhesive & G.4.2(b) tapes/materials; stitching? 35 G.3.1(b) Are the optional construction parts limited to the following: & G.4.1(b) tabling, which may form a pocket at luff for a mast spar jackstay, one or two cringles and/or openings at the head, one cringle and/or openings at clew and tack, luff openings for mast spar rings and/or loops for mast spar jackstay fittings, luff bolt rope, luff track slides, luff fittings for mast spar rings &/or loops, luff fittings for mast spar jackstay, primary and secondary reinforcement max 125mm from sail corner, primary reinforcement and/or stiffening within the leech stiffening zones defined by the H.3 templates? 36 G.3.3,G 4.3 Is the top width 20mm or less? 37 G.3.3, G.4.3 If there is any tabling, is its width 15mm or less? 38 G.3.3/4.3 Is primary & secondary reinforcement within 125 mm of nearest sail corner measurement point? 39 G.3.3/4.3 Is any secondary reinforcement for any flutter patches less than or equal to 50 mm? 40 H.3.3 Can the leech stiffening zones on all sails be covered by the H.3.2 template positioned as H.3.3? 41 G.3.3/4.3 Are all sail shape indicator stripes 30mm or less in width with maximum 3 on mainsails and 2 on headsails? 42 G.3.3/4.3 Is maximum dimension of all cringles 10mm or less? 43 G.3.1(a)(6) Is the foot on or above a straight line between tack point and clew point? MAINSAILS 44 G.3.1(a)(2) G.3.2(a)(2) 45 G.3.1(a)(3) 46 G.3.1(a)(4) Except within the leech stiffening zone, does the leech remain on or within straight lines between: adjacent batten points, aft head point and clew point and their nearest batten points? 47 G.3.1(a)(6) 48 G.3.3 49 G.3.3 G.3.3 Is the class insignia present? Is the upper batten less than or equal to 10 mm wide x 75 mm long? Are the other battens less than or equal to 10 mm wide x 100 mm long? Are the following primary sail dimensions within the permitted ranges? 50 G.3.3 Leech Length mm 1610-1620 1200-1210 910-920 51 G.3.3 Foot Length mm 350-360 340-350 310-320 52 G.3.3 Quarter Width mm 305-315 295-305 265-275 53 G.3.3 Half Width mm 235-245 225-235 205-215 54 G.3.3 Three Quarter Width mm 135-145 130-140 115-125 55 G.3.3 56 G.3.3 57 G.3.3 58 G.3.3 HEADSAILS 59 G.4.1(a)(2) G4.2(a)(2) 60 G.4.1(a)(3) Does the body of the sail consist of the same ply throughout and two or three parts joined by seams, or a single panel with or without three dimensional shape added by heat and/or force.? Except within the leech stiffening zones, is the leech within a straight line between the aft head point and clew point? 61 G.4.3 G.4.3 Are all battens less than or equal to 10 mm wide x 75 mm long? Are the following sail dimensions within the permitted ranges? 62 Luff Length mm 1320-1330 980-990 730-740 63 Leech Length mm 1245-1255 900-910 655-665 64 Foot Length mm 375-385 340-350 290-300 65 G.4.3 Half Width mm 185-195 165-175 140-150 66 Clew point to lower batten point mm 400-430 285-315 205-235 67 Clew point to upper batten point mm 820-850 590-620 425-455 68 Is maximum dimension of any secondary reinforcement at headsail stay slides and/or loops 20mm or less? 69 Are all seams more than 100mm from a sail corner measurement point? 70 Does the body of the sail consist of the same ply throughout and two, three or four parts joined by seams or a single panel with or without three dimensional shape added by heat and/or force.? Does each sail have three battens, or 20mm minimum length lines marked on the leech if there are no battens at the leech? Is secondary reinforcement at luff fittings, luff slides and/or luff openings 20 mm or less? Are all seams 150mm or more from a sail corner measurement point? Are batten points as in G.2.4, within 20 mm of the nearest leech point? Except for luff slides is the largest luff fitting dimension 10 mm or less? Have all sails been signed by the Official Measurer? 2017 Model Yachting Association MYA IOM Certification Control - Rig and Sail checklist 2017-05-13 Page 2 of 2 Effective; 13th May 2017

INTERNATIONAL ONE METRE CLASS Part II, Section C checklist Recommended by the MYA to be used at Certification Measurement and RETAINED BY THE OWNER for future reference. This is NOT a measurement form and is NOT required to be sent to the registrar to obtain a certificate. Boat registration number Tick where checked WEIGHT (Record actual weight) Hull Rig 1 Rig 2 Rig 3 1 C.6.4 Does the keel, excluding fasteners, weigh 2200g - 2500g? ( kg) 2 C.6.4 Does the rudder, including the stock, weigh less than 75g? ( ) 3 C.4.2 Does the boat in dry condition, with rig 3, weigh 4000g or more? ( ) 4 C.4.2 Does the boat in dry condition, with rig 2, weigh 4000g or more? ( ) 5 C.4.2 Does the boat in dry condition, with rig 1, weigh 4000g or more? ( ) 6 C.4.3 Are the corrector weights, if any, fixed in the hull? BOAT 7 C.4.1 In any rig, does the length fall within the limit of 1000mm? 8 C.4.1 In any rig, does the draft fall within the limit of 370-420mm? (approx. mm) 9 C.4.1 In any rig, is the hull depth 60mm or less? 10 C.6.3 Is the rudder inboard of the after end of the hull? 11 C.5.2 Is the hull registration number [20mm min] displayed on the hull or deck? 12 C.6.3 Is the keel fixed, ie unable to move or rotate relative to the hull? RIG 13 C.7.2 Is the rig inboard of the fore and aft ends of the hull? 14 C.7.4 Is the lower limit mark to deck limit mark for each rig between 60-100mm? 15 C.7.4 Is the variation in height of lower limit mark for each rig restricted to +/-5mm? (ie: where a mast jack is used) 16 C.7.5 Is the headsail boom swivel for each rig attached approx. on the hull centreline? 17 C.7.6 Does the running rigging (sheets, headsail boom topping lift and restraint line(s), and mainsail tack downhaul) comply with C.7.6 (a), (b), (c) and (d)? 18 C.8.3(c) Does the line taken through the tack & head points of the headsail of each rig cut the mast spar below the lower edge of the headsail stay limit mark? SAILS 19 C.8.3(c) Are the clew point of the mainsail and clew & tack points of each headsail set within 25mm of the ends of the boom spars on each rig? 20 RRS E8 Is the class insignia positioned above the sail numbers on each mainsail? 21 RRS E8 Are the sail identification marks positioned clearly and correctly on the mainsails and headsails of each rig? See RRS E8, MYA SSIs & Sail ID on MYA website Official Measurer signature and date To the owner: Please retain this checklist as a record of measurement to form a base point of compliance with the Section C rules at the time of Certification Control (measurement). The checklist contains items within Part II, Section C of the IOM Class Rule and owners are reminded to ensure that their boat complies with all of the rules in Part II when racing. Race Committees reserve the right to carry out equipment inspection (check measurement) of boats at any time during an event. ADDITIONAL ITEMS FOR EQUIPMENT INSPECTION Keel Rudder Rig 1 Rig 2 Rig 3 22 C.6.2 Have the keel and rudder been marked for use in this event? 23 C.8.2 Have mainsails and headsails of each rig been marked for use at this event? 2017 Model Yachting Association MYA IOM Part II, Section C checklist 2017-05-13 Page 1 of 1 Effective: 13th May 2017