Pooleys RNP-2

[Ian Davies]

Hi,

Can anyone tell me why the compass on the Pooleys RNP-2 plotter is backwards? Having trouble getting my head around it.

Explanations welcome, thanks!

[jollyrog]

Never used this device, but it seems straightforward.

Place the centre of the circle on where you are (or expect to be) and align the long edge on the track you want to fly. Then read the number at the top for a heading.

[Jhieminga]

Because you are using the grid on the chart as the index and reading off the heading on the scale of the plotter. Start with a track that is due north. Place the plotter on your departure point with the long edge along your track and the meridian on the chart will be below the 360deg marking on the scale. Now take a track from the same departure point with a heading of 030. Your plotter will be angled 30deg to the right of the meridian. The same meridian will be below the 030deg marking on the plotter. To be able to do that, the 030 marking on the scale needed to be 30 degrees to the left of the 360 marking.