RYA SPRING 2021
Astern Because strange things happen at sea 74 DID YOU KNOW?
An OCTOPUS has THREE HEARTS, NINE BRAINS and BLUE BLOOD. Two hearts pump blood to the gills, while the third circulates it to the rest of the body.
STRANGE SIGHTS Safet fir a etyfirst
Boat users are renowned for their safety consciousness while they’re out on the water, but the pandemic has forced us to think even more about our actions on land, too. Clubs and individuals around the country have gone the extra mile to make sure everyone stays safe, and we love this creative Covid-19 social distancing message spotted at Netley Sailing Club on Southampton Water. With a bow-to-stern measurement of 2.3m, an Optimist is the perfect visual reminder to maintain a suitable distance from fellow club members. Lots of quirky nautical social- distancing guides have been spotted around the world, with signs in T
exas advising people
to stay one alligator apart, and Japanese market workers being asked to stay one tuna’s length away from each other!
20 billion SUPERSTITIONS
While many of us take to our boats on a Friday for a long weekend, it was long considered an ill-omened day to sail, particularly to start a new voyage.
GALLONS OF ONSOF WATER the TER…th amount a large ICEBERG
from Antarctica can contain. This could supply one million people with drinking water for five years.
RYA YACHTMASTER QUIZ ANSWERS
1 Usually in the two hours before high water where depth is greatest and water flow over the bar has decreased to its lowest rate. 2 It provides greater steerage due to improved water flow over the rudder. 3 To spin the boat in its berth with the use of warps and with the assistance of wind and/or tide.4 A type of graph used for calculating the geostrophic wind speed by measuring contour line spacing at a given latitude on a synoptic chart. 5 Red rocket, red handheld and orange smoke.6 The trim of the vessel is determined by the position of the bow and stern relative to one another. Positioning of weight further aft or forward will raise or lower the bow or stern. Similarly, adjusting the tilt of an outboard engine will allow the bow to ride higher or lower in or on the water. 7 A buoyancy aid is designed simply to provide a little positive buoyancy (circa 50N of buoyancy) but nothing else. A lifejacket (whether inflatable or fixed buoyancy) is designed and tested to ensure it provides adequate positive buoyancy (a minimum of 150N of buoyancy) in addition to floating an unconscious casualty in a face-up position with their airway clear of the water. 8 15°C.9 While smoke rises, gas is heavier than air and therefore accumulates low down. 10 As the vessel comes to a stop alongside the casualty the wind will naturally blow it down towards the casualty, assisting in a comfortable and controlled recovery. It also creates a lee, reducing the likelihood of water splashing into the airway of the casualty.
At its WIDEST POINT, the
PACIFIC OCEAN is wider than THE MOON. This expanse of ocean is 12,300 miles across – more
than FIVE TIMES the moon’s diameter!
AIR POLLUTION is responsible for 33% of the
CONTAMINANTS that end up in
oceans and coastal waters. About
44% of pollutants come from run-off via RIVERS and STREAMS.
Photos: Mark Gillow / Alexander Hafemann / Sarayut Thaneeratt / Chunyip Wong / Getty Images
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42 |
Page 43 |
Page 44 |
Page 45 |
Page 46 |
Page 47 |
Page 48 |
Page 49 |
Page 50 |
Page 51 |
Page 52 |
Page 53 |
Page 54 |
Page 55 |
Page 56 |
Page 57 |
Page 58 |
Page 59 |
Page 60 |
Page 61 |
Page 62 |
Page 63 |
Page 64 |
Page 65 |
Page 66 |
Page 67 |
Page 68 |
Page 69 |
Page 70 |
Page 71 |
Page 72 |
Page 73 |
Page 74 |
Page 75 |
Page 76
