The following text may have been generated by Optical Character Recognition, with varying degrees of accuracy. Reader beware!

mean incapacitated by hypothermia. This distance will obviously be affected by one's swimming ability, amount of insulation and water conditions. It is not easy to judge distance and the shore may appear to be closer than it actually is. In cold water, an individual is likely to be able to swim a distance of ho more than 1/10th of what he could easily swim in warm water. In most instances, the best advice is to stay with the boat! What if I have no lifejacket or other flotation? Treading Water method. BOATING This technique is recommend- ed over the drownproofing --§ ----_~--~_~_ An Treading water involves continuous movement of the arms and legs in various pat- terns in order to keep the head out of the water. Test results show an average cool- ing rate of persons treading water that was 34% faster than while holding still in a life jacket. In this unfortunate situation, one is forced to adopt either of the following two "anti-drowning" techniques: treading water or drownproofing. i Drownproofing hypothermia. very necessary A compass is indispensable to any boat operating offshore or in a large lake or bay. It should be securely fitted, and located where it always |s easily seen by the helmsman and where magnetic influences such as electrical wiring or movable steel objects are minimal The compass should be of a type suitable for marine use and should be adjusted periodically to compensate for magnetic forces. If you are not familiar with compass adjustment, consultant seek professional assistance from a marine lf you frequently operate in one location, record compass headings during clear weather, so that in restricted visibility you will know what compas is needed to proceed in the desired direction Venting inboard motors is agood practise Accidental, 'disastrous explosions usually happen when the engine is started. To ensure efficient ventilation, fit at least two ventilation ducts in each space containing engines or fuel tanks, one duct for exhaust and one for supply. The exhaust duct should lead from the bilges under the engines or fuel tanks to the sur- face; the supply duct should extend from the surface to a level below that of the carburetor intake. Supply and exhaust ducts should be as far apart as possible and the supply cowls should be at least 10 cm higher than the exhaust outlets. Remember, the two ducts mentioned above may not be sufficient, and ad- ditional ventilation should be fitted as necessary depending on the size and_ear- rangement of your boat. Ensure that no _ pockets of gas ac- cumulate in boats with deep-V bottoms owing to lack of proper ven- tilation. Each duct opening should be the same size, with an area no smaller than 42 cm2 per metre of beam. The exterior ends of the ducts should have obstructed cowls or equivalent fittings with openings at least equal in area to those of the ducts. Exhaust ducts may be fitted with wind- actuated, self-trimming or rotary exhauster heads, or with power- operated exhaust fans. If a power-operated fan is used, the electric course motor and the switch for operating the motor should be_ installed outside the ventilation duct and, preferably, outside the machinery space. If this is im- practicable, the motor and/or an_ explosion- proof switch may be installed within the machinery space. The exhaust fan should be run for about five minutes before starting the engine. Air cushion vehicles All water users should know that these vehicles operate differently from conventional boats and ships in these ways: -An ACV is most con- trollable and creates minimum wash when moving at high-speed. Do not be alarmed at high-speed _ operation. -An ACV is_ not necessarily travelling in the direction that its bow or its navigation lights indicate. Do not be alarmed if an ACV is pointing straight at you--look instead for its direction of movement relative to you. -When operating, an ACV has no draft. Do not try to follow an ACV and do not be alarmed if you see one heading for shore or shallow water at high speed. -ACVs are subject to the Collision Regulations, but may have a high noise level. Sound signals may not be heard either by the ACV operator or other water users. ACVs may be iden- tified from other craft by an all-round flashing amber light, which they always must show when operating. (This is in addition to conventional navigation lights.) In studies so far, drownproof- ing in cold water appears to be the fastest way to die from ----e EOS ee This procedure involves restful flotation with lungs full of air, interrupted every 10-15 seconds to raise the head out of water to breathe. Drownproofing experi- ments in 10°C (50°F) water show that the body's cooling rate was 82% faster than while holding still in a lifejacket. This is mainly due to putting the head (a high heat loss area) into the water with the rest of the body. Drownproofing is a survival technique that should be practised only in warm water. -the world's best sailing and cruising _ in a wonderful world of history and hospitality. Servicing dealer for... WELCOME TO THE WYE HERITAGE MARINA "we GEORGIAN B What body regions are the critical areas for heat loss? The head and neck are the most critical heat loss areas. In addition, certain other body regions have high rates of heat loss while a subject is holding still in cold water. Infrared pictures show that the sides of the chest (where there is little muscle or fat) are the major routes for heat loss from the warm chest cavity. The groin region also loses much heat due to large blood vessels near the surface. If an effort is made to conserve body heat, these regions deserve special hgh attention, as described in section 8 following. What behaviours will increase survival time? Based on the heat loss infor- mation in section 7, two techniques were tested that attempted to reduce heat lost from the critical areas. H EL P (Heat Escape Lessening Position) This technique involves holding the inner side of the arms tight against the side of the chest over the "hot region" described in section 7. The thighs are pressed together and raised to close off the groin region. This body position was indeed a significant help, resulting in nearly a 50% increase in predicted survival time. It should be noted that the picture shows a person wearing a flotation device that has all its buoyancy high on the body, close to the surface of the water. This type of device is especially suitable for H E L P. This is a difficult position to maintain and it is advisable to practise i eContinued eMercury eVolvo eOMC eYanmar eWesterbeke eOnan ePerkins eFaryman eAtomic IV Three licensed mechanics on staff eComplete paint shop facilities featuring the "'Imeron" paint process e2 new repair shops to accommodate boats yp to 50' length e@ Dockage available for up to 50' craft year- round. eAccommodation for 600 craft @ Overnight, monthly, full season dockage and inside winter storage . © Secure property, fully fenced, you have your own personal key e Gas and diesel fuel, freshwater, shore power, dock lighting, pump out service e@ Launching ramp and parking. SAIL 32' Brandylmire 1972 Sloop - $28,900 30' Nonsuch - $72,900 30' Redwing 1969 Spinn - $28,000 29' Northern from $33,500 27' Mirage - $26,900 27' C & C 1973 Mark 11 - $34,000 23' Grampian 1974 - $11,000 20' Chrysler 1979 7.5 Johnson - $9,500 BOATS FOR SALE 30' C & C Mega 1978 Roller furling - 32' Georgian Steel H.B. 1968 225 Merc - $25,500 $21,900 30' Kirby 1980 Race equipped - $36,500 31' Silverton 1977 - $58,000 26' Niagara 1979 Roller furling - $25,500 26' 22' CS 1975 New 7.5 Evinrude - $10,800 26' Trojan 1975 Express - $20,000 20' Nordic Halman 1980 4.5 Johnson - 25' Wellcraft 255 1977 - $21,900 $12,000 24' Grew 1976 1/0 - $31,000 BAY HARBOUR YACHTS MR (705) 526-2222 POWER 46' Georgian Houseboat - $52,900 37' Alcan Flybridge H.B. 1969 - $39,000 30' Trojan 1978 Flybridge - $59,000 30' SeaRay 1977 - $47,000 30' Custom Sedan Cruiser 1980 - $25,000 28' Chris Craft 1960 - $13,500 Campion 1979 |/O - $31,000 26' SeaRay SRV260 1979 - $27,500 24' Fiberform 1974 1/0 - $15,000 STOP & SHOP AT THE "SUN-N-SURF" CONVENIENCE STORE e Rainwear e Life Jackets elnterlux Paints e Cleaning Materials @ Accessories @ Light Snacks, etc. | NOW LOCATED IN THE OLD CLUBHOUSE e Charts e Safety Flares, etc. e Worms e Magazines WYE HERITAGE MARINA Ogden Beach Road, P.0. Box 474, Aw SS GEORGIAN BAY Midland, Ontario, Canada L4R 4L3 (705) 526-4475 Friday, May 21, 1982, Page 17