1125 - Western Approaches to Ireland
1 × £37.80 NP281(2) List of Radio Signals Vol. 1 Part 2
1 × £60.75 Portland Navigational Triangle 200mm
1 × £10.00 Subtotal: £108.55
£20.00 ex VAT
In StockA bright blue directional arrow prevents accidental reciprocal bearings and the edges are graduated for tide and boat speed. Fixed grid base helps plotting lat. and long. from GPS
2 in stock (can be backordered)
Portland Course Plotter
A popular chart work instrument widely used by RYA practical & shore based instructors. It provides a quick method of plotting course and bearings and gives a direct reading of corrections for magnetic variation.
This new version has been developed in consultation with the RYA and has been engineered for both strength & fine accuracy. Compass disc incorporates special finger bars making it more easily used with cold, wet, or even gloved hands. Edge scales for tide and boat speeds.
A bright blue directional arrow prevents accidental reciprocal bearings and the edges are graduated for tide and boat speed. Fixed grid base helps plotting latitude and longitude from GPS.
Also a useful training aid for students.
| Weight | 0.5 kg |
|---|---|
| Dimensions | 45 × 15 × 1 cm |
Manufactured from solid brass, with non-magnetic triangular stainless steel points.
This simple to use slide rule from Blundell Harling calculates the third variable given the other two (i.e. distance covered, given speed and elapsed time).
Brass Chart Weight
Each card shows a flag of the International Code in colour on the face, with the signal letter or number and the meaning of the signal flag on the reverse.
The lights and shapes playing card size flip cards provide a very easy learning platform and are ideal for revision.
7″ traditional single hand divider.
