Easy Target speed calculation

kkentopanga · 04-09-07, 02:21 PM

I hope this is not redundent to another post. If so I am sorry.

Can someone else check to see if this works. I have tested it several times at 125 magnification and 64 TC and it appears to.

Speed Calculation (KM per Hour to Knots per Hour)

Km/Hr = Knots

2 =1.079
4 =2.159
6 =3.239
8 =4.319
10 =5.399
12 =6.479
14 =7.559
16 =8.639
17 =9.719
19 =10.259
21 =11.339
23 =12.419
25 =13.499
27 =14.578
31 =16.738
34 =18.898

Go to 25 KM scale on your navigation chart/map. Scroll till your target is centered at the bottom of the map. Pause the simulation. Place a mark at the front of your target. Note the time shown on the simulation (2310 for demo). Go to 64 TC and watch the time. When one hour has passed (0010 for demo) pause the simulation and place a mark at the front of your Target. Use the ruler and measure the distance from your first mark to your second mark which will show KM traveled in one hour. EXAMPLE if your target traveled 21 KM in the one hour then the targets speed is 11.339 knots per hour.

04-09-07, 02:21 PM	#1
kkentopanga Helmsman Join Date: Oct 2006 Location: Roseville CA Posts: 102 Downloads: 0 Uploads: 0	Easy Target speed calculation I hope this is not redundent to another post. If so I am sorry. Can someone else check to see if this works. I have tested it several times at 125 magnification and 64 TC and it appears to. Speed Calculation (KM per Hour to Knots per Hour) Km/Hr = Knots 2 =1.079 4 =2.159 6 =3.239 8 =4.319 10 =5.399 12 =6.479 14 =7.559 16 =8.639 17 =9.719 19 =10.259 21 =11.339 23 =12.419 25 =13.499 27 =14.578 31 =16.738 34 =18.898 Go to 25 KM scale on your navigation chart/map. Scroll till your target is centered at the bottom of the map. Pause the simulation. Place a mark at the front of your target. Note the time shown on the simulation (2310 for demo). Go to 64 TC and watch the time. When one hour has passed (0010 for demo) pause the simulation and place a mark at the front of your Target. Use the ruler and measure the distance from your first mark to your second mark which will show KM traveled in one hour. EXAMPLE if your target traveled 21 KM in the one hour then the targets speed is 11.339 knots per hour.