United States Power Squadrons Chart Smart Welcome to

United States Power Squadrons® Chart Smart® Welcome to the United States Power Squadrons' Chart Smart Seminar Piloting - Distance, Speed, Time (Section 6) USPS ® America's Boating Club ® 1 / 18

United States Power Squadrons® Chart Smart® Class Agenda - cont'd q Section 5: Piloting - Distance, Speed, Time • The DST Formula • Alternative Method of Using 60 D=ST USPS ® America's Boating Club ® 2 / 18

United States Power Squadrons® USPS ® America's Boating Club ® Chart Smart® 3 / 18

United States Power Squadrons® Chart Smart® THE 60 x D = S x T FORMULA D = Distance (in nautical miles - nm) S = Speed (in knots - kn) T = Time (in minutes - m) USPS ® America's Boating Club ® 4 / 18

United States Power Squadrons® Chart Smart® Alternative Method of Using the 60 x D = S x T Formula 60 x D S D= Sx. T 60 USPS ® America's Boating Club ® S= T 60 x D T T= 60 x D S 5 / 18

United States Power Squadrons® Chart Smart® Calculating Distance q How far will your boat go if you run at 10 knots for 30 minutes? q Formula: 60 x D = S x T 60 x D = 10 x 30 60 x D = 300 D = 5. 0 nm USPS ® America's Boating Club ® 6 / 18

United States Power Squadrons® Chart Smart® Distance Measurement - "Walking" the Dividers USPS ® America's Boating Club ® 7 / 18

United States Power Squadrons® Chart Smart® Labeling a Course Line For Distance C 067 D 11. 2 Course 067° true Distance to next objective 11. 2 nautical miles USPS ® America's Boating Club ® 8 / 18

United States Power Squadrons® Chart Smart® Labeling a Course Line For Distance C 247 D 11. 2 Course 247° true (reciprocal of 067°) Distance to next objective 11. 2 nautical miles USPS ® America's Boating Club ® 9 / 18

United States Power Squadrons® Chart Smart® Calculating Speed q What was your boat speed if it took you 40 minutes to run 8 nautical miles? q Formula: 60 x D = S x T 60 x 8 = S x 40 480 = S x 40 S = 12. 0 kn USPS ® America's Boating Club ® 10 / 18

United States Power Squadrons® Chart Smart® Labeling a Course Line For Speed C 067 S 12. 0 D 11. 2 Course 067° true, Speed 12. 0 kn Speed is placed beneath the course line and near the beginning of the course USPS ® America's Boating Club ® 11 / 18

United States Power Squadrons® Chart Smart® Labeling a Course Line For Speed D 11. 2 C 247 S 12. 0 Course 247° true (reciprocal of 067°) Speed is placed beneath the course line and near the beginning of the course USPS ® America's Boating Club ® 12 / 18

United States Power Squadrons® Chart Smart® Calculating Time q How long will it take you to go 5 nautical miles at 10 knots? q Formula: 60 x D = S x T 60 x 5 = 10 x T 300 = 10 x T T = 30 m USPS ® America's Boating Club ® 13 / 18

United States Power Squadrons® USPS ® America's Boating Club ® Chart Smart® 14 / 18

United States Power Squadrons® Chart Smart® 24 - Hour Clock 0000 2400 1100 0100 1000 2300 1200 2200 0900 0200 1300 1400 2100 0800 2000 1900 1500 1700 0300 1600 0400 1800 0700 0500 0600 USPS ® America's Boating Club ® 15 / 18

United States Power Squadrons® Chart Smart® Calculating Time Arrive: 1612 Depart: 1047 Elapsed Time: USPS ® America's Boating Club ® 1572 1047 ——— 0525 (5 h 25 m) 16 / 18

United States Power Squadrons® Chart Smart® Calculating Time Depart: Elapsed Time: Arrive: 2200 1030 ——— 3230 - 2400 USPS ® America's Boating Club ® 0830 (next day) 17 / 18

United States Power Squadrons® Chart Smart® End of Section 6 Piloting - Distance, Speed, Time USPS ® America's Boating Club ® 18 / 18