VIII. WEAR YOUR PFD

In approximately 80 percent of all boating fatalities, the victims were not wearing a PFD. Most fatal accidents happen on calm sunny days. This inflatable PFD is much more comfortable to wear than other PFD types. Get into the habit of wearing this PFD. Non-swimmers and children especially should wear a hybrid or non-inflatable PFD at all times when on or near the water.

IX. HYPOTHERMIA

Prolonged exposure to cold water causes a condition known as hypothermia — a substantial loss of body heat, which leads to exhaustion and unconsciousness. Most drowning victims first suffer from hypothermia. The following chart shows the effects of hypothermia:

HOW HYPOTHERMI A AFFECTS MOST ADULTS

Water Temperature

Exhaustion or

Expected Time

°C

°(F)

Unconsciousness

of Survival

0.3

(32.5)

UNDER 15 MIN

< 15 TO 45 MIN

0.3 TO 4.4

(32.5 to 40)

15 TO 30 MIN

30 TO 90 MIN

4.4 TO 10

(40 to 50)

30 TO 60 MIN

1 TO 3 HOURS

10 TO 15.6

(50 to 60)

1 TO 2 HOURS

1 TO 6 HOURS

15.6 TO 21.1

(60 to 70)

2 TO 7 HOURS

2 TO 40 HOURS

21.1 TO 26.7

(70 to 80)

2 TO 12 HOURS

3HOURSTOINDEFINITE

Over 26.7

(Over 80)

INDEFINITE

INDEFINITE

 

 

 

 

PFDs can increase survival time because they allow you to float without using energy treading water and because of their insulating properties. Naturally, the warmer the water, the less insulation you will require. When operating in cold waters [below 60°F (15.6 °C)] you should consider using a coat or jacket style PFD or a Type V Thermal Protective PFD as they cover more of the body than the vest or belt style PFDs.

19

Page 19
Image 19
Stearns Recreational 0340 manual VIII. Wear Your PFD, IX. Hypothermia