Radial is a magnetic bearing emanating from a VOR.

Firstly, find the exact position of TALLA (TLA) VOR and GLASGOW (GOW) VOR on your E(LO)2 chart, using the coordinates given and draw the radials given with the following manner:

• Centre your plotter at the centre of the TALLA (TLA) VOR, and align it with TLA 182° radial which defines the ATS route N864. Measure an angle of 67° clockwise from TLA 182° radial and make a pencil mark. Draw a line connecting TLA VOR with the pencil mark, representing the TLA 249° radial.
• Centre your plotter at the centre of the GLASGOW (GOW) VOR, and align it with GOW 154° radial which defines the ATS route L612. Measure an angle of 12° clockwise from GOW 154° radial and make a pencil mark. Draw a line connecting GOW VOR with the pencil mark, representing the GOW 166° radial.

Radials can also be drawn using protractor and ruler, by lining up the protractor with the numbered radials (so magnetic tracks are being used) and then drawing a line outwards from the point on the radial track, using a ruler. Either way works just fine, and depends on the equipment you have to hand.

Finally, locate the point of intersection of the two lines (radials) drawn, which indicates the position of the aircraft: N55º17', W004º08'.