This book is essential for anyone studying celestial navigation.
Since J W Norie published the first edition of this famous set of mathematical tables in 1803, the book has become – and remained - a bestseller. Despite developments in electronic navigation it remains an essential requirement for anyone learning and practising astro-navigation.
2B is the recommended pencil for chart work.
The 18” Aluminum Arm Parallel Ruler features aluminum arms and handles.
- High quality eraser for everyday use
- Erases graphite on paper and matt drafting film
- Suitable for OHP pen on transparencies
- Each eraser comes with a protective sleeve
- Packaged in cellophane with an easy tear strip
An expert guide to the collision regulations for all mariners
Normally used in conjunction with parallel rules for chartwork.
- Precision compasses with obtuse-angled safety needle
- Maximum circle Ø approx. 300 mm
- Length 124.2 mm
- Compass with lead part and lead box in case with hinged lid
The fx-83GTX replaces the Casio Fx-GT scientific calculators which takes Ireland's Number One Scientific Calculator a step further, by offering additional features such as clearer display, clearer menus, faster processor and 14 additional functions. Allowed in every Irish exam where a calculator can be used. The large Natural Textbook Display (Natural-V.P.A.M.) shows mathematical expressions like roots and fractions as they appear in your textbooks which increases comprehension because results are easier to understand.
Two metal holders so the student can carry the Drawing board and T square together. The stopper on the end of the board has been removed so you can use the board with larger sheets.
PLEASE NOTE: T-Square not included.
Board Size: 64cm x46cm
12.9cm 180° Protractor
Ship Stability for Masters and Mates explores all aspects of ship stability and ship strength, squat, and interaction and trim, as well as materials stresses and forces. Organized into 56 chapters, the book looks at the relationship between ship stability and ship motion, with emphasis on group weights in a ship. It also explains how TPCs are calculated for a range of drafts extending beyond the light and loaded drafts, along with form coefficients, including the coefficient of fineness of the waterplane area.
A2 sized cardboard folio for holding drawings.