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G6 RYA Navigation Handbook
Reprinted August 2023
No content changes.
Reprinted January 2023
Page 24: The mnemonic in the first paragraph has been updated.
Reprinted October 2021
No content changes.
Reprinted December 2020
No content changes.
G7 RYA Navigation Exercises
Reprinted January 2023
Page 95: Answer B has been corrected to read:
[START]
Fall of tide 4.3m – 0.8m 3.5m
[END]
Reprinted September 2021
Page 95: The illustration on this page has been amended to adjust the plot lines on the tidal curve graph.
Page 95: In the line which reads ‘a) Height to tide at 1635 SPDST 4.2m’, ‘4.2m’ has been amended to read ‘4.3m’
Page 95: In the line which reads ‘b) Fall of tide 4.2m – 0.8m 3.4m’, ‘3.4m’ has been amended to read ‘3.5m’
Page 95: In the line which reads ‘c) Fall or tide 3.4m’, ‘3.4m’ has been amended to read ‘3.5m’
Page 95: In the line which reads ‘Depth to anchor 6.0m’, '6.0m' has been amended to read ‘6.1m’
Reprinted June 2020
No content changes.
G77 RYA An Introduction to Navigation
Reprinted January 2024
Throughout: This book has been updated throughout to reflect the RYA’s new logo and colours.
Reprinted January 2023
No content changes.
Reprinted March 2022
No content changes.
Reprinted January 2021
No content changes.
G78 RYA Astro Navigation Handbook
Reprinted July 2023
Page 6: Lines two and three of paragraph two have been updated to read:
[START]
they appear to be 70° above our north-east horizon and 50° above the horizon in the north-west.
[END]
Page 16: The sum at the bottom of the page has been amended to read:
[START]
316º44’.7
8º33’.0
__________
325º17’.7
[END]
Page 18: The sum below paragraph one has been amended to read:
[START]
N 0º35’.2
0’.6
__________
N 0º34’.6
[END]
Page 35: The formula for Azimuth has been amended to read:
[START]
sin Z = (sin LHA x cos Dec) / cos Hc
[END]
Page 35: Line two of the third paragraph has been amended to read:
[START]
Now, the LHA is 70º+ 8º 30’E = 78º30’
[END]
Page 36: The sum at the top of the page has been amended to read:
[STARTS]
Sextant Altitude 17°41’.2
Index error – 5'.3
Observed Altitude 17°35’.9
Correction for Dip – 2'.5
Apparent Altitude 17°33’.4
Correction for SD etc. +. 13’.0
True Altitude 17°46’.4
[ENDS]
Page 36: The notepad illustration has been updated to reflect the above change to the sum.
Reprinted January 2022
No content changes.
Reprinted January 2021
No content changes.
No content changes.
RC98 One Day Radar Course Questions and Answers
Throughout: The RYA logo has been updated on the cover and internal pages.
Accompanying certificate: This has been updated to include the RYA's new logo and brand colours.
TAN RYA Training Almanac: Northern Hemisphere Edition
Reprinted October 2023
No content changes.
Reprinted September 2022
No content changes.
Reprinted November 2021
No content changes.
Reprinted January 2021
Page 36: The tidal curve illustration has been amended to include four extra vertical black dashes after the number 6 on the top horizontal axis.
TAS RYA Training Almanac: Southern Hemisphere Edition
Reprinted January 2023
No content changes.
Reprinted January 2022
No content changes.
Reprinted January 2021
Page 36: The tidal curve illustration has been amended to include four extra vertical black dashes after the number 6 on the top horizontal axis.