Leeway Table
The formula that is used in the calculation = (wind speed * weight) + factor with the answer given in Knots
|
Casualty drift speed and direction due to WIND |
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|
Casualty Type |
Weight |
Factor |
Divergence |
|
|
Person in water, state unknown |
0.011 |
0.070 |
30 |
|
|
Person in water, Vertical |
0.005 |
0.070 |
18 |
|
|
Person in water, Sitting |
0.012 |
0.000 |
18 |
|
|
Person in water, Horizontal, Life jacket/survival suit |
0.014 |
0.100 |
30 |
|
|
Person in water, Horizontal, wet suit/scuba suit |
0.007 |
0.080 |
30 |
|
|
Person in water, Horizontal, deceased |
0.015 |
0.080 |
30 |
|
|
Life raft, no ballast, unknown canopy and drogue |
0.042 |
0.030 |
28 |
|
|
Life raft ,no ballast, no canopy, no drogue |
0.057 |
0.210 |
24 |
|
|
Life raft , no ballast - no canopy, with drogue |
0.044 |
-0.200 |
28 |
|
|
Life raft, no ballast ,with canopy, no drogue |
0.037 |
0.110 |
24 |
|
|
Life raft, no ballast, with canopy, with drogue |
0.030 |
0.000 |
28 |
|
|
Life raft, Shallow ballast system, drogue unknown |
0.029 |
0.000 |
22 |
|
|
Life raft, Shallow ballast system, no drogue |
0.032 |
-0.020 |
22 |
|
|
Life raft, Shallow ballast system, with drogue |
0.025 |
0.010 |
22 |
|
|
Life raft, Shallow ballast system, capsized |
0.017 |
-0.100 |
8 |
|
|
Life raft, Deep ballast system, with canopy |
0.030 |
0.015 |
20 |
|
|
Life raft, totally enclosed capsule |
0.038 |
0.080 |
22 |
|
|
Maritime Life Raft, 4-6 person, deep ballast, with canopy |
0.029 |
0.04 |
15 |
|
|
Maritime Life Raft, 4-6 person, deep ballast, with canopy, no drogue |
0.038 |
-0.04 |
15 |
|
|
Maritime Life Raft, 4-6 person, deep ballast, with canopy, no drogue, light load |
0.038 |
-0.04 |
15 |
|
|
Maritime Life Raft, 4-6 person, deep ballast, with canopy, no drogue, heavy load |
0.036 |
-0.03 |
15 |
|
|
Maritime Life Raft, 4-6 person, deep ballast, with canopy, with drogue |
0.018 |
0.03 |
12 |
|
|
Maritime Life Raft, 4-6 person, deep ballast, with canopy, with drogue, light load |
0.016 |
0.05 |
24 |
|
|
Maritime Life Raft, 4-6 person, deep ballast, with canopy, with drogue, heavy load |
0.021 |
0.00 |
20 |
|
|
Maritime Life Raft, 15-25 person, deep ballast, with canopy |
0.036 |
-0.09 |
10 |
|
|
Maritime Life Raft, 15-25 person, deep ballast, with canopy, no drogue, light load |
0.039 |
-0.06 |
9 |
|
|
Maritime Life Raft, 15-25 person, deep ballast, with canopy, with drogue, heavy load |
0.031 |
-0.07 |
9 |
|
|
Maritime Life Raft, capsized |
0.009 |
0.00 |
12 |
|
|
Maritime Life Raft, swamped |
0.010 |
-0.04 |
8 |
|
|
Survival Craft, Life Capsule |
0.038 |
-0.080 |
22 |
|
|
Survival Craft, USCG Sea Rescue Kit |
0.025 |
-0.040 |
7 |
|
|
Aviation Life Raft, 4-6 person, no ballast, with canopy, no drogue |
0.037 |
0.110 |
24 |
|
|
Aviation Life Raft, 46 person |
0.028 |
-0.010 |
15 |
|
|
Kayak, with person |
0.042 |
0 |
19 |
|
|
Kayak, without person |
0.047 |
0 |
13 |
|
|
Surf Board, with person |
0.020 |
0.000 |
15 |
|
|
Surf Board, without person |
0.049 |
0 |
15 |
|
|
SUP with person |
0.027 |
0 |
26 |
|
|
SUP without person |
0.049 |
0 |
15 |
|
|
Windsurfer, with person, mast and sail in water |
0.023 |
0.100 |
12 |
|
|
Canoe, open; with person |
0.097 |
0 |
27 |
|
|
Canoe, open; without person |
0.147 |
0 |
16 |
|
|
Sailing vessel, mono hull, full keel, deep draft |
0.030 |
0.000 |
48 |
|
|
Sailing vessel, mono hull, fin keel, shoal draft |
0.040 |
0.000 |
48 |
|
|
Raft Homemade (2 inner tubes with frame), no sail |
0.020 |
0.160 |
15 |
|
|
Raft Homemade (2 inner tubes with frame), with sail |
0.070 |
-0.150 |
35 |
|
|
Power vessel, outboard, no drogue |
0.070 |
0.040 |
20 |
|
|
Power vessel, 4.5m - 8.5m, V hull |
0.070 |
-0.100 |
20 |
|
|
Power vessel, 5m - 30m, with centre console or walk-around cabin |
0.060 |
-0.100 |
20 |
|
|
Power vessel, centre console, open cockpit |
0.060 |
-0.090 |
22 |
|
|
Power vessel, flat bottom, Boston whaler |
0.034 |
0.040 |
22 |
|
|
Power vessel, V-Hull |
0.030 |
0.080 |
15 |
|
|
Power vessel, V-hull, swamped |
0.017 |
0.000 |
15 |
|
|
Power vessel, Cuddy Cabin, V-Hull |
0.069 |
-0.080 |
19 |
|
|
Power vessel, cabin cruiser, medium displacement |
0.040 |
0.000 |
20 |
|
|
Commercial fishing vessel, 13m - 30m, unknown type |
0.037 |
0.020 |
48 |
|
|
Commercial fishing vessel - Sampans |
0.040 |
0.000 |
48 |
|
|
Commercial fishing vessel - Side Stern Trawler |
0.042 |
0.000 |
48 |
|
|
Commercial fishing vessel - Longliners |
0.037 |
0.000 |
48 |
|
|
Commercial fishing vessel - Junk |
0.027 |
0.100 |
48 |
|
|
Commercial fishing vessel - Gill netter, with rear reel |
0.040 |
0.010 |
33 |
|
|
Coastal Freighter |
0.028 |
0.000 |
48 |
|
|
Flotsam - fishing vessel debri |
0.020 |
0.000 |
10 |
|
|
Flotsam - bait box |
0.013 |
0.270 |
31 |
|
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