What is a trade wind?

A trade wind is a persistent wind that blows westward and toward the Equator from the subtropical high-pressure belts toward the intertropical convergence zone. It is stronger and more consistent over the oceans than over land and often produces partly cloudy sky conditions, characterized by shallow cumulus clouds, or clear skies that make trade-wind islands popular tourist resorts. Its average speed is about 5 to 6 metres per second (11 to 13 miles per hour) but can increase to speeds of 13 metres per second (30 miles per hour) or more. The trade winds were named by the crews of sailing ships that depended on the winds during westward ocean crossings. (Source Encyclopaedia Britannica)

Day 134 – 5th October 1986

Noon Summary Log

Day: 134
Date: 5th October 1986
Latitude: 53° 2.1′ S
Longitude: 63° 48.6′ W
Water Temperature: 6.2°C
Wind @ Noon: 25 W
Max Wind /24 hours: 25 W
Min Wind /24 hours: NIL WIND
Cloud Cover 4/8
Cabin Temperature: 14.2°C
Outside Temperature: 11.1°C
Barometer: 1017
Ships Seen: 1

Source: CUL00045/4

Log

  • Argentine Coast Guard came alongside, told me to fly my flag

Source: CUL00058/1

Images

Argentine Coast Guard
Argentine Coast Guard
Source: CUL00039/19/2

Prefectura Naval
Prefectura Naval
Source: CUL00039/19/2

Flying the flag
Flying the flag
Source: CUL00039/19/2

Day 132 – 3rd October 1986

Noon Summary Log

Day: 132
Date: 3rd October 1986
Latitude: 51° 3.4′ S
Longitude: 62° 45.9′ W
Water Temperature: 5.6°C
Wind @ Noon: 20 W
Max Wind /24 hours: 30 WSW
Min Wind /24 hours: 12 W
Cloud Cover 5/8
Cabin Temperature: 11°C
Outside Temperature: 7°C
Barometer: 1011.5
Ships Seen: 2

Source: CUL00045/4

Log

  • Cannot pick up the BBC, voice of America or anything properly at this time. 2nd ship sighted.
  • Buzzed by Royal Navy helicopter, communicated with RN. Nice to have the Royal Navy about.

Source: CUL00058/1

Images

Trawler
Trawler
Source: CUL00039/19/2