USCG lights Flashcards

International Regulations for Preventing Collision at Sea

1
Q

White over Red…

A

… Pilot Ahead - Pilot Vessel

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2
Q

Green over White…

A

… Trawling at Night (2 triangles with apex touching)

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3
Q

Red over White…

A

… Fishing Tonight (2 triangles with apex touching)

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4
Q

Red over Green

A

Sailing machine

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5
Q

Yellow over White (aft lights)

A

My towline is tight

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6
Q

Yellow over Yellow

A

Pushing ahead or hip fellow

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7
Q

Red over Red

A

Captain is Dead - Vessel not under command ‘not making way’ (2 Balls)

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8
Q

Red over White over Red

A

International - Vessel restricted in the ability to maneuver (Ball over Diamond over Ball)

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9
Q

Red over Red over Red

A

International only - Constrained by Draft - Three reds in a row, no room down below (large cylinder on end)

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10
Q

3 Greens in a cross

A

Mine clearing boss (3 balls in a cross)

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11
Q

Diamond day shape

A

Towing over 200 m

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12
Q

Inverted triangle

A

Power vessel (1 White forward light for less than 50 m, 2 White forward lights for over 50 m)

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13
Q

2 triangles with apex touching

A

Fishing (Red over White) or Trawling (Green over White)

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14
Q

2 triangle apex touching and third triangle

A

Outlying gear over 150 m

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15
Q

2 Balls

A

Captain is Dead - Vessel not under command ‘not making way’ (Red over Red)

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16
Q

Ball over Diamond over Ball

A

International - Vessel restricted in the ability to maneuver (Red over White over Red)

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17
Q

Large cylinder on end

A

International only - Constrained by Draft (3 Reds in a row, no room down below)

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18
Q

1 Ball

A

Vessel at Anchor (1 White)

19
Q

3 Balls

A

Vessel Aground - less than 50 meters (Red over Red with White light)

20
Q

3 Balls in a Cross

A

Mine clearing boss (3 greens in a cross)

24
Q

3 White in a row

A

Power vessel towing astern - tow over 200m (1 diamond)

25
Q

1 Diamond

A

Power vessel towing astern - tow over 200m (3 whites in a row)

26
Q

White over White…

A

… My Towline is Tight - short tug / tow in sight - under 200 m

27
Q

White over White over White…

A

… Long tug / tow in sight - over 200 m

28
Q

White all around

A

Anchored - less than 50 m (1 Ball)

29
Q

White all around with side lights

A

Power vessel under 12 m

30
Q

White over White forward lights (second masthead light) with side lights

A

Towing Alongside
- inland: 2 Yellow stern lights on towing vessel, 1 White stern light on vessel being towed
- international: 1 White stern light on each of the vessels
Note: when seen from forward same as a power vessel over 50 m

31
Q

White forward light with side lights

A

Power vessel under 50 m

32
Q

White over White forward lights (second masthead light) with side lights

A

Pushing Ahead
- inland: 2 Yellow stern lights
- international: 1 White stern light
Note: when seen from forward same as a power vessel over 50 m

33
Q

Green and Red side lights

A

Highest Alert !!! Vessel is pointed at you!

  • move from collision course immediately!
  • make yourself visible (spotlight, flashlight, shroudlight)
  • sound horn
  • ready flare-gun
  • man radar & radio is possible
34
Q

Tri-color masthead

A

Sailboat under 20 m

35
Q

Red over Red with White light

A

Aground - Vessel less than 50 m (3 Balls)

36
Q

3 White in a row

A

Power vessel towing astern - tow over 200m (1 losange)

37
Q

1 Diamond

A

Power vessel towing astern - tow over 200m (3 whites in a row)

38
Q

Red over Red with White light

A

Aground - Vessel less than 50 m (3 Balls)

38
Q

Tri-color masthead

A

Sailboat under 20 m

38
Q

White over White…

A

… My Towline is Tight - short tug / tow in sight - under 200 m

39
Q

White over White over White…

A

… Long tug / tow in sight - over 200 m

40
Q

White all around

A

Anchored - less than 50 m (1 Ball)

41
Q

White all around with side lights

A

Power vessel under 12 m

42
Q

Green and Red side lights

A

Highest Alert !!! Vessel is pointed at you!

  • move from collision course immediately!
  • make yourself visible (spotlight, flashlight, shroudlight)
  • sound horn
  • ready flare-gun
  • man radar & radio is possible
42
Q

White over White forward lights (second masthead light) with side lights

A

Pushing Ahead
- inland: 2 Yellow stern lights
- international: 1 White stern light
Note: when seen from forward same as a power vessel over 50 m

42
Q

White over White forward lights (second masthead light) with side lights

A

Towing Alongside
- inland: 2 Yellow stern lights on towing vessel, 1 White stern light on vessel being towed
- international: 1 White stern light on each of the vessels
Note: when seen from forward same as a power vessel over 50 m

43
Q

White forward light with side lights

A

Power vessel under 50 m