A yacht’s log records the distance travelled through the water and, from that, derives speed (there are other types of log such as Doppler which work differently). Because the log wheel is subject to the marine environment, such as weed, it ought to be tested often and calibrated to be reliable. Many sailors are perhaps …
Up to date 2023 Allow about 5h30m from SYH. HW-Harwich about 1700 to 1800 gives a leisurely start and the last of the Orwell ebb. Returning the next day is then not too early a start. Brightlingsea Harbour & entrance & Chartlet & Height over Sill real-time Video of entrance Follow transit boards from B’Sea Spit SCM into channel 0.5m CD. …
As part of a plan to survey sections of the marina for depth, it was necessary to establish the difference in tidal height between SYH and the tide gauge at Harwich (HHA). The HHA gauge gives predicted and actual tide for every ten minutes on a 24-hour basis: the data can be read into a …
Standard air pressure at sea level is 1013 mb or Hectopascals, Changes in air pressure affect sea level, This effect has implications for the sailor since each A 10mb change in pressure results in a 0.1m opposite direction change in sea level which can be calculated easily. This is enough to make a difference at a river bar or marina entrance although any change should be within the safety margin allowed by the prudent sailor.
Page 96 FROM THE COLNE TO HARWICH. …Trinity House. This serves as a land-mark, but will not be of any use to us, as its only advantage, beyond being a mark to tell ships out at sea what point of land they are off, is to clear the Longsand Head fifteen miles away out at …
Read more “1892 – The Coasts of Essex and Suffolk by Frank Cowper – Extract Harwich area”
Basic weather and real time data for local sailing.