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pri 1982 60p A. & Canada $2.75) sh ae Ehtee committee, he has finalised does not necessarily accord in all respects with his views, but it represents what the majority of model yachtsmen throughout the world wish to see. Now, it has taken nearly two years to arrive at this position and the earliest the rule could come into effect is virtually another year. If the rule is sent out for amendment, amendments sent out for voting on, etc., etc., it would be-never-ending — certainly it would probably be 1985 before the change could come into effect, yet there is general agreement that change is urgent. The rule as proposed is already representative of the at MODEL YACHTING majority views, would so that proposed amendments probably merely be minority opinions which have already been weighed against the majority. In view of all this, the IMYRU Executive Board ASSOCIATION decided at their January meeting to circulate copies of Chris’ preamble and the restyled rule, inviting any amendment felt essential by 30th June. The Board will consider amendments suggested and include any material ones at their discretion; a final copy will then be sent out atthe beginning of September for ayes or no vote by the end of the year. If accepted, the revised rule will come into force in March 1983. Note, incidentally, that with only rare exceptions, current Marbleheads should have no difficulty in meeting the rule, since the fundamentals remain unaltered and much of the revision is concerned only with definitions and methods of measuring. To ensure that as many people as possible have an opportunity of seeing the new format, the whole of the preamble (which simply explains some aspects and will not be part of the rule) and the rule itself follows, by courtesy of the IMYRU. M CLASS RULES Explanatory Notes and Statement Intention of Rule The Marblehead rule is not a ‘development’ rule as is generally meant by this term i.e. ‘10rater’ or ‘A’ class. It is a restricted rule whereby development is not prohibited, but is only allowed within the parameters of the rule, thereby largely The open display by the Model Yachting Association at the Model Engineer Exhibition gave visitors an excellent opportunity to inspect some of the best designs currently sailing. At left is Graham Bantock’s six metre Polaris, the Mark I! prototype of an earlier version which won the 1978 Championships; Polaris itse/f won in 1980 andtied for first position in 1981. The 12 metre is John Cleave’s boat with which he won the Sail ‘80 event in Ottowalast year. Nextis Oliver Lee’s RM Trapper, 1979 and 1980 winner, and at right, aone-off A Class design by John Lewis and built by Ken Jones for John Cleave and of all-timber construction. ost model Yachtsmen will know that a re- Mew of the Marblehead rule (also known as M, RM, and 50/800) was Marblehead is the most internationally popular class, the aim of the rule is toprevent any major change or breakthrough in the class with development taking place slowly along normally accepted lines. whose interpretation of the rule is literal, and who find doubts and silence in it, as opposed to model Basis of revision national Model Yacht Racing Union at the 1980 yachtsmen who have largely followed traditional approaches, though, of course, inrecent years we General Inevitably, have seen a tendency towards loophole-hunting. present, i.e. 50 inch long monohull yachts with modern materials allow different approaches to The number of queries received by the IMYRU of the Rules the first task requested brought in many full-size skippers and officials maintaining the existing form of the class. Since the Committee Meeting held set in up by the Ottawa. Inter- rules which, like the M, are fifty years old, and (80 per cent at least relating to sail area while there have been occasional tinkerings to try measurement) over the last four or five years to keep the rules abreast of current develop- have shown that a revision is urgent, hence the ments, past request to the Rules Committee to deal with the alterations have to be related to desirable but Marblehead first. However, it isn’t all that easy, unmade modifications and the original rule toput since every member country has to be asked its the whole thing into a logical and acceptable views and each national authority has therefore form. to survey its member clubs. Then what one country wishes to see is completely opposite to the time has to come when Much of the difficulty arises from new manmade sail materials, which allow liberties to be another, taken which could not have been successful with separated and committee Egyptian cotton (Union silk, as it was known in everything said and come up with a consensus. countries, members, have to take in widely~ note of in Responsible for coordinating all this has been measurement, since naturally the original rule the IMYRU Rating Rules Officer, Chris Dicks, who was written fortunately many places) and thus for cotton. create The confusion class is also so is one of the shrewdest brains in widespread throughout the world that what has model always been accepted practice in one country is detecting unknown directions in which rules might be undesirably ‘new’ in others, model April 1982 particularly yachting the countries. relatively Radio has yachting, exploited. flies The in immensely the restyled experienced ointment and rule which, at possible with the To maintain the M Class as it is known at bermudan rig of 800 square inches. In addition, to more closely control any additional sail area without over-complication of the measurement system. Intent of Rules 1. Basic Rule 2. Aclause to attempt to prevent any sidestepping of the rules. 3. Metric units to be included. Note degree of accuracy is not identical for both systems, but Imm is all that can practically be achieved in metric measurements, whilst fractions of an inch more easily convert to two places of decimals. 4. Inclusion omitted from of definition existing rule, of overall and length system of measurement where doubt may exist. Also the clarification and partial definition of bumpers. 5. As existing basically, except for inclusion of definition of movable keels. 6. Basically as existing. 199 7. Basically as existing except the sails restricted to a maximum of two, of a basically triangular shape (bermudan rig) to avoid complication of measurement procedure. 8. As existing except that permanently bent masts and spars are now allowed since they cause problems of definition, and cannot appreciably affect the actual sail area due to the introduction of sail width measurements. In addition, clause ‘g’ effectively bans luff spars as they are not generally considered desirable. 9. Defines where sails shall be measured. 10. Basically as existing but additional clause clarifies situation for mast with luff groove. 11. As existing. 12. As existing. 13. Introduces sail width measurements in place of roach limitations to control unmeasured area. 14. As existing. 15. As existing. 16. As existing intention. 17. Sail setting restrictions mainly from M.LY.A. Sailing Rules but which are not included in I M.Y.R.U. RC Rules. In addition clause (f) prohibits the ‘swing’ rig, clause (g) is as current clarifies any (h)use interpretation of rules, and cla possible misinterpretation. 18. As existing but with allowance for long numbers on narrow sails. 19. Clarification of existing rules. International Model Yacht Racing Union Rating Rules for International ‘M’ Class (Marblehead 50-800 Class) 1. Basic Rule. The class shall consist of monohull yachts having an overall length of fifty inches (50in.) (one hundred and twenty-seven centimetres) and a maximum measured sail area (except spinnaker) of eight hundred square inches (five thousand, one hundred and sixty-one square centimetres). 2. Fair Measurement. Any yacht which, in the opinion of the length shall be measured between verticals at the extreme ends of the hull with the yacht afloat and fully rigged with the largest rig. (d) Bumpers are in no case to be included in the overall measurement of the hull and the joint between bumper and hull shall be clearly definable. Bumpers may extend a maximum of one half of an inch (1.3cm) beyond the hull measurement at the bow only, and must be made of resilient material capable of minimising damage to another yacht in the event of a collision. Any yacht not fitted with an efficient bumper shall be refused a certificate. 5. Prohibited. (a) Movable keels (i.e. keels which can be adjusted either fore and aft or in a vertical direction. Fixed keels having a movable trim tab are not prohibited by this clause), centre-boards, lee boards, bilge-boards. (b) Bowsprits, overhanging rudders. (c) Movable or shifting ballast, but not including any vane steering gear. (d) Outriggers, Pontoons, Twin Hulls, ‘Tunnel’ hulls. (e) To change rudders during arace or series of races, except in bona fide cases of damage to the original rudder. (f) The keel or ballast shall not be changed during a race or series of races. 6. Unrestricted. There are no restrictions on Beam, Tumblehome, Freeboard, Draft, Load water-line length, Displacement, Scantlings, Materials where provided elsewhere in these rules). 7. Rigs. (a) All sails (except spinnakers) shall be (b) A rig shall consist of a maximum of twosails excluding spinnaker. (c) A maximum of three measured alternative rigs are allowed. (d) The total measured sail area of each rig shall not exceed 800 square inches (5161 square ; centimetres). ment and the details of the features which have led to the refusal shall be reported to the B or C in the clew of each sail. I.M.Y.R.U. for a ruling. 3. Units of Measurement. Measurements may be taken and recorded in either imperial or metric units as follows. A. Imperial. (a) Linear: Inches and decimal fractions of an inch. (b) Areas: Square inches and decimal fractions of a square inch. (e) All sails of each rig shall be clearly markedA, (f) A rig is defined as any number of suits of sails, the largest of which shall have its dimensions recorded on the Measurement Certificate. All smaller suits of sails shall be within the measured dimensions of the rig to which they relate, and shall comply with all other restrictions on sails. (g) The maximum height of any rig, measured from the deck at the mast to the head of the mainsail shall be 85in. (216cm). (h) The height above deck of the jib-stay of any B. Metric. (a) Linear: Centimetres and decimal fractions of suit of any rig shall not exceed eighty per cent a centimetre. (b) Areas: Square centimetres and decimal mainsail of the largest suit of that rig. fractions of a square centimetre. All imperial measurements shall be correct to two places of decimals. All metric measurements shall be correct to one place of decimals. 4. Hull Measurement. (a) The overall length of the hull shall be 50 inches (one hundred and twenty-seven centimetres). (b) A tolerance of one quarter of an inch (0.6cm) in excess of, or less than, the specified overall length is allowed. (c) The overall length of the yacht shall be measured approximately parallel to the water line. If the measurer is in doubt regarding the accuracy of the overall length measurement, the 200 and Bipod masts are allowed. (f) Masts and spars are not included in sail area measurement. (g) A jib or headsail shall not be set on a luffspar and shall only be supported along its luff by a cord or wire having a maximum diameter of one eighth of an inch (3mm). 9. Sail Measurement. (a) All sails shall be measured rigged on, and fully extended along, the mast and spars. 10. Triangular Mainsail Measurement. (a) Luff — A Measured from the bottom edge of the sail to the head of the sail. Whether or nota headboard is fitted, the head of the sail shall be defined as the point at which the width of the sail, measured at right angles to the luff, is three quarters of an inch (19mm). (b) Diagonal — B Measured from the bottom after corner of the sail (clew) to the nearest point on the luff. Where the luff of the sail is within the mast, the measurement shall be taken to the nearest point on the after side of the mast. 11. Jib or Headsail Measurement. (a) Luff — Q (80%) of the height above deck of the head of the (i) The height of the jib-stay shall be defined as the intersection point of the line of the luff of the jib extended upwards to meet the forward edge of the mast. (j) Where only a single sail is used, it shall be termed the mainsail whether mounted in front of or behind the mast, and the jib-stay height limit shall not apply. 8. Masts and Spars. (a) There shall be no limit to the height of mast. (b) The maximum diameter of masts and spars is limited to three quarters of an inch (19mm). (c) There are no restrictions on material, weight, or section of masts and spars, and no extra measurements are entailed where not round. Measured from the bottom edge of the sail to the head of the sail. Whether or noté headboard is fitted, the head of the sail shall be h sail of the defined as the point at which the widt measured at right angles to the luff, is three quarters of an inch (1.9cm). (b) Diagonal — R_ Measured from the botton after corner of the sail (clew) to the nearest poin on the luff. 12. Calculation of Sail Area. (a) Mainsail; Multiply A by B and divide by 2. (b) Jib or Headsail; Multiply Qby Randdivide b basically triangular in shape. measurer, does not comply with the intention of any rule shall be temporarily refused measure- (except (d) Hollow masts and spars are allowed. (e) Permanently bent masts and spars, Rotating 2. 13. Additional Sail Restrictions. (a) Mainsail Widths. 1. The maximum width of the mainsail measured at right angles to the luff, at the mid height of the luff shall not exceed B+ 3 inche (/,B + 7.6cm). This measurement shall be take! with the sail fully extended across its width. 2. The maximum width of the mainsa measured at right angles to the luff, at a height c three quarters of the luff length from the foot c the sail, shall not exceed /,B + 3 inches (Y,B 7.6cm). This measurement shall be taken wit the sail fully extended across its width. (b) Jib or Headsail Widths. 1. The maximum width of the jib or headsa measured from the mid-height of the leech to th nearest point on the luff of the sail shall nc exceed ¥R + 3 inches (/,R + 7.6cm). Th measurement shall be taken with the sail ful extended across its width. 2. The maximum width of the jib or headsé measured from the leech at a height of thre quarters of the leech length above the clew, to tk nearest point on the luff of the sail shall ni exceed ¥,R + 3 inches (YR + 7.6cm). Th measurement shall be taken with the sail ful extended across its width. (c) Rounded Foot of Sails. The rounded foot of any sail shall not proje more than 1linch (2.5cm) beyond a straight lit joining the tack and clew of the sail. (d) Leech of Sails No hollows or notches are allowed in tl leech of any sail. (e) Luff of Sails. Any localised hollows or notches in the luff any sail shall be bridged with astraight line fort purposes of measurement. Model Boa races except that items of equipment may be 14. Batten Limits. (a) Battens in mainsail shall not exceed four in number and shall divide the leech into approximately five equal parts. Battens shall not exceed four inches (10.2cm) in length. replaced with similar items. So there you have it. As will be clear, the principal innovations measuring (b) Battens in headsail shall not exceed three in party is likely to have members fluent in French and/or English. sails, are and in the the method method of Continuing with this digression for a moment, with one third of affiliated countries and well over outlined half the total membership using English as their (commonly used on full-size yachts) has been normal tongue, and English as the language of number and shall divide the leech into approxi- mooted for several years. Gaff-rigged mainsails, mately four equal parts. Battens shall not exceed technology which enjoyed a brief vogue some fifteen years two inches (5.1cm) in length. ago, future consideration of an official language is (c) A tolerance of half an inch (1.3cm) shall be allowed in the positioning of the battens. are out; more surprising is the sizeable majority giving the thumbs-down to the swingrig, which has always seemed innocent enough. Strangely, it has just been accepted as legal inthe 15. Headboards. full-size Redwing class, but model yachtsmen in (a) Headboards shall not exceed three quarters other countries have clearly indicated that they of an inch (1.9cm) in width. The width of the sail at don’t like it. Opinion regarding spinnakers for the underside level of the headboard shall not RMs was a exceed three quarters of an inch (1.9cm). This menters will have to switch to the R10R and RA rule applies to all sails. class, where in the current climate of opinion they (Note: also rules 10 and 11 regarding definition are unlikely to be banned. of head of sail.) hefty six to one against, so experi- (b) Only sail material may be used for tablings in the head, tack or clew of any sail. try it for twelve months and then, if no problems have arisen, freeze it for, say, five years so that all interests know how it stands. shall be sixty-eight inches (172.7cm). (b) Spinnaker boom shall not exceed fifteen inches (38.1cm) in length measured from the centre of the mast to the outermost attachment point of the spinnaker. 17. Sheeting and Changing of Sails or Rigs. (a) Sails or rigs may be changed at any time, provided such change does not infringe the rules. (b) Any contrivance for extending the spinnaker to any other than a triangular shape, such as an outrigger or footyard, battens or an auxiliary sheet, is prohibited. Sleeves and tubular pockets are not allowed. (c) The spinnaker boom shall not be used as a bowsprit by being tacked down at its outer end when right forward. (d) A spinnaker shall not be set without aboom. (e) No jib, foresail or spinnaker shall be sheeted directly to the main boom. (f) Any boom supporting a jib or foresail shall be attached directly to the deck within six inches (15cm) of the jib tack. (g) No boom shall extend beyond the overall length of the yacht. (h) Headsails or jibs may only be used with mainsails of the same rig. any 1977, there had been regular international races held annually for over fifty years in England, against only a couple of events held in other countries during yachtsmen had the same never period, thought so model twice about English being the customary language; it was taken for granted, and this is probably why no-one has ever thought of having a formal pronouncement in the constitution. Whether it is necessary depend on how smoothly things run at Dunkirk. New member Switzerland, countries both of are whom Portugal hope to and send entries, and Italy and Spain hope to, so there will matters requiring consideration by the Executive be five countries represented for the first time in an IMYRU event. The French are planning on 62 RM and 38 R10R entries, and with the number of Board at the January meeting. Points of general countries intending to compete, it seems worth interest include the World Championships for the considering whether 12m one-design, scheduled for 3rd-5th June and ships hosted by the Mid-Atlantic M.Y.C. at Greenwich alternated, i.e., the whole week devoted to the IMYRU Board Meeting The revision of the M rule was only one of the should be future World separated Champion- and_ possibly Lake, New Jersey, U.S.A. So far little additional one class, with perhaps RMs one year and R10Rs information has been received, but the current the next. Assuredly this will have to happen if champion, growth continues, unless entries are limited, as John Cleave, is making plans to attend. Now that hulls are available in Britain in model aircraft, to three per class per country several of these boats are being built (see January irrespective of size of country. The growth of R/C yachting is producing acrop issue) so that we may one day see a National of Championship for the class. A number of points arise regarding the RM and R10R World Championships in July at the Model problems yachtsmen wish to in are form that now their in several sufficiently own countries numerous national to association Yacht Club Flandre-Artois lake near Dunkirk. The rather than, as in many cases, remain asmall part banks of the lake are such that the practice of of a walking the course favoured by some skippers is boating not very practicable, but for the Championships becomes particularly acute in countries where a federation is not IMYRU-affiliated or is affiliated but inactive, or is felt not to be as active as it might the local authority is laying a tarmac area. How extensive this will be is not known, but the organisers have been asked to clarify whether skippers will remain more or less in one spot or whether they will be able to move along the national federation covering all types of or, indeed, all types of models. This be. The job of the IMYRU Executive Board is to clarify situations and accord recognition to the body most active in the interests of the majority of model yachtsmen in a particular country, which length of the course. The system of.scoring will be the standard may sound a Olympic one (the one with the 5.7 in it) which is Welcome considered better for events extending over several days and caused no problems when used 18. Distinguishing Marks. as full-size yachting, competitors to Dunkirk. Brazil is planning to send 16. Spinnaker and Spinnaker Boom. (a) The maximum spinnaker hoist for any rig well going to have English high on the short list. Until may It would be sensible, if the rule is accepted, to as organisation lot easier than it usually is. news has was that an umbrella resolved the situation in the U.S.A. The Union of American Model Yachtsmen Class and Registration marks as detailed below at the last World Champs. Ratification is to be covers both MYRAA and AMYA, with a President must be displayed on either side of every mainsail sought for the system to be used at all World from either body in alternate years. Holland was settled last year by the recognition of the N.M.Z.A. used, at differing heights on each side, positioned Championships. Approval has also been given for as high on the sail as the sail width will permit. penalising the and all seems to be running smoothly there. A Sizes: (2.5cm); particular race if he fails to carry out a penalty Thickness: ¥; inch (6.6cm); Registered Numbers: turn (or turns) when required to do so. In fleet decision made about Sweden in 1981 has now been rescinded, since irrefutable evidence has Height 2¥, inches (6.35cm), Width 1%, inches racing, (4.5cm), Thickness % inch (0.9cm), Spacing > points should be added to a disqualified boat’s been produced invalidating some of the statistics submitted; the S.M.S.F. is now the recognised inch (1.2cm). Class Mark: Height 1 inch a competitor disqualification six places is difficult in (how many score, and in which fleet does he sail his next authority. Changes, too, in Denmark, where the The Registered Numbers will be preceded by race?) and a six-place penalty is a reasonable D.M.U. has satisfied the Board that it represents a the distinguishing National Letter(s) of similar compromise. It is not too severe a penalty if a majority, and in Belgium, from whence no reply competitor simply fails to understand that a turn has been received to any correspondence and no dimensions. be penalty has been awarded against him because of affiliation placed on a line above the Registered Numbers. language difficulties, though an interpreter, or recognition reverts to the Royal M.Y.C., Antwerp, Alternatively, the National Letter(s) may fees paid since early 1980, so Bar dividing Class Mark and Number to be ‘ inch team-mate with some French, standing within who represented Belgian yachtsmen for many (O.3cm) thick. earshot is an obvious precaution. years. It seems likely that at least eight languages will In Italy two new bodies have been established, 19. R.M. Class. All the foregoing rules shall apply to the R.M. Class except the following: be represented at Dunkirk, and this exposes a gap each claiming national status, but there seems no (a) No Spinnakers shall be allowed in the R.M. Class. (b) The number of radio channels employed for controls shall be unlimited. (c) All radio equipment shall be fixed in position and shall not be changed during arace or series of April 1982 in the Union’s Constitution, which does not lay reason to make a change, at least until the three down an official language or languages. In full- organisations size, English is standard for yachting, but it is becomes perhaps a federation organisers However, little to past late conduct to the experience require racing with the in French English! multi-lingual have clearer. has adjusted and In Spain a the position national model recently come into being, but again until there are positive developments no change will be made. events shows that hand signals and fragmentary We will include afull, up-dated list of addresses language can cope with most situations and every of national secretaries in next month’s Log Book. 201 MIGRO=MOLE) 4 are well aware of the many Mode/ Boats’ readers who are not interested in competitive model yachting, but who surroundings with an attractive model that is straight-forward and relatively quick to build. If the previous statement describes you in particular, then we suggest you take a Germany, manufactured by Krick and imported by Micro-Mold, the 7/na sailing yacht for two-function radio control, a vacuum formed plastic construction dinghy, 35%in. long x 11in. beam, overall height 62in., and featuring a single mainsail with no jib. The idea of the single sail is to simplify construction by reducing sheeting com- plication, and indeed, the whole concept of the kit is designed with quick, easy building in mind, getting the modeller into the water with the minimum effort. box; the weight due to the bulb ballast, small steel balls, a thoughtful inas many gressing further this was now an ideal time to paint the hull, so a waterline was marked on to the hull, with asoft pencil mounted on a suitably positioned block, the latter being hull on a smooth building board. Masking tape was applied and firmly smoothed down. Prior to marking the line the hull was washed with a mild household detergent to sailboat builders en- remove counter troubles when it comes to finding and shaping lead ballast. The very well illustrated, line drawings, instruction booklet includes a comprehen- mation of static electricity will turn your hull into a dust collector supreme. We decided to use a bright red colour andHum- brol enamel was applied using and hull — after fitting the fin bottom). This is probably one of the most pit box was secured to the deck. Before pro- upturned time, critical parts of the kit build as any gaps will rudder were fitted to the hull, and the mast the drying (by means of a moulded lip on the hull mounting blocks for the radio gear tray and around adequate mounting box in its predetermined position wipe dry with a cloth as the immediate for- Tina arrives in a full-colour, somewhat clusion deck side to cure over 24 hours. In the meantime slipped allowing overnight in our case, it was time to mate grease and dust and a//lowed to dry. Don’t Making A Start heavy, After R/C Sailing Yacht Length 35’,in. Beam 11in. Height 62in. enjoy an afternoon’s sailing in pleasant close look at a recent import from West modeller’s spray gun. Two coats with a few minutes between sprays was ample. their Bulb keel shelis assembled, awaiting addition of ballast. let water into the hull. The adequate flanges were roughened with medium grit glasspaper, a generous line of cement was run on top of the hull flange and the top surface of the fin mounting box, then the deck was quickly placed in position and held until dry with as many bulldog clips and clothes’ pins as we could lay our hands on. After allowing to dry overnight, slots were cut through the deck and hull above and below the fin mounting box. Fin and Bulb The fin and bulb are from moulded a.b.s. halves which together around are using a clamped a.b.s. and cement substantial ply glued and epoxy stack, through which the mounting bolts have been pre- viously forget secured to fill supplied before cleaning up the through the with the epoxy. We bulb with the fixing fin the can mounting stack. be box didn’t ballast After offered up and secured with the two nylon nuts supplied. by The rudder was fabricated from two half following the guidance slavishly, no prob- mouldings around the rudder shaft and in- sive parts and materials list, and major com- serted into its support tube. The last job on ponents are well formed in a.b.s. and we the hull assembly was to fix the mast step were pleased to find a.b.s. cement supplied into position. This consists of a metal nut lems were encountered. in the kit. as held in a strong a.b.s. box, the nut so posi- instructed and the doublers for hatch fixing tioned that tha mast pivot bolt on the base points and sheeting runs fitted; also the two of the mast can rotate freely in the step and holes allow the sail to swing from side to side. to The deck All accept strengthening/sheet was the _ guide trimmed structural aluminium cross beam were drilled. A rigid fin mounting box was fabricated from mouldings supplied and put to one 216 Mast and Sail The basic mast components are two alu- minium tubes joined together with a Model Boats Left: gluing deck to hull, (don’t pick washing day for this task). Below: well deck showing keel retaining nuts and simple sheetin9g arrangement. smaller diameter conne ctor and a boom of smaller tube rigidly conn ected to the mast tube — no gooseneck fittin g is supplied or necessary. All required sheet eyes are screwed into the pre-d rilled holes. The sail is already cut to shape but it does require the addition of head, clew and_ tack reinforcements. These are Cut from scrap a.b.s. and fixed to the sail corners with cyanoacrylate was to cement. thread and All that tie-off remained the sheeting cords. This operation was made easier by smearing the threading ends of the nylon cord with a little cyano and to prevent fraying afterwards, the ends were sealed with a flame. ancient 12-year-old Simpr op (purely cointhat Micro-Mold are now the cidental agents for Simprop) Operating a rudder servo and adrum type sail winch. The radio gear is mounted ona ply plate fitting in the rear of the boat; the ply plate is fixed an inch or so above the hull bottom. We would prefer to see a more positi ve water resistant siting and it would not be too diffiCult to incorporate an extra bulkhead to provide a sealed compartmen t — however this extra frame would need to be fitted prior to fixing the deck. The whip aerial was secured, the radio batter ies charged we were off to the lake for trials. and The instructions refer to the specific use of the Sanwa sail winch and are so detailed that no problems should be encountered. Our review sample was fitted with a rather HARRIER \ best position for the fin. Initial ly, this is placed as far aft as possi ble and in this LENGTH O.A. 36” BEAM 10¥,” \ DRAFT 10” \ DISPLACEMENT 12!Ib \ \ do not envisage any prob lems. Altogether, Zina admi rably fits into her image, an €asy-to-buil d, fun-to-sail, sports model that will bring many pleasant hours boating. Distributed by Micro-Mold, Tina retails at £38.66. of HARRIER is a superbly \ attractive semi-scale R/C Ocean Racer with ABCO “JEEP” HULL 28’/,” long x 9” beam. Our multi-purpose semiscale hull. Suitable for electric power and full R/C. Inboard or outboard motors. A very stable hull. Will accept complete’ kit form with any form of superstructure. Build a boat to your own design. (More fun than kit bashing). Order Ref. AFMO1. Bantock racing sails. Detailed drawings and instructions. Price including V.A.T. £86.00 ex. radio and winch. + £2.00 postage etc. Trade enquiries welcome RM kit £130.00, Main Boom kit aiso — £8.50, Jib Boom kit £6.00, ‘Groovy’ mast kit £10.50, wire, bowsies, ri gging screws, kicki ng Straps, eye bolts, mast r ams, etc. Send S.A.E . for leaflets to: OLIVER J. LEE, 29 Chapel Road, “Burnhamon Crouch, Esse x. Tel. Maldon 782305 (Works). April 1982 mind the single sail, was the way she cam e through the eye of the wind when going about. Whether the same characteristic will be present in a stronger blow still 25 MENDIP CRESCENT, WALSHAW PARK, BURY, GREATER MANCHESTE R BL8 102z SAVE TIME WITH A FIBREG LASS HULL G.R.P. Hull/Deck, ‘Groovy’ section mast, TRAPPER aS one would expe ct from the relatively flat dinghy hull. Rudder contr ol was excellent, 20° being ample to brin g about a tight turn. What was a pleasant surprise, bearing in ABCO (U.K) ITD. += the performance and handling qualities which distinguish OLIVER LEE yachts from all others. Available in ‘easy to : with the rudder at neutr al. This position of was. marked for futu re use. Jina picks up speed very quick ly in light winds, the fin no doubt be moving cons iderably faster, we For first runs it is suggested that the wind speed be 10 knots or less. This is because a number of trials are requi red to find the by Oliver Lee The fin was moved forw ard Over a period of three sails until she held a steady course awaits a suitable outin g, but as the boat will Pondside Progress R/C Installation position, Zina ran out of the wind. £10.00 + £3.00 Part Carriage. PHOTO SHOWS OUR OWN CREWBOAT AND THREE OTHER SEMI-SCALE MOD ELS, ALL BUILT ON THE BASIC JEEP HULL BY MEMBERS OF BURY METRO MARINE MODEL SOCIETY. * ALSO x HEDING HAM CASTLE COR VETTE. 63”x 9″ & PLANS £48.5 0+ £4. 50 CARR. 50ft STE AM PICKET BOAT. 50”x 10” & PLANS £23. 50 + £4.50 CARR. PICK ET BOAT DECK MOULDINGS (BOI LER HOUSE & FOC’SLE) £5.00. NOW AVAILABLE: FULL ILLUSTRATED LISTS AND PRICES SEND TWO FIRST CLA SS STAMPS * M.V. AFRIC STAR AND EGRET CABIN CRUISER COMING SOON « REMITTANCE WITH ORDER PLEA SE TRADE ENQUIRIES WELCOMED 217
