Silva Expedition Type 4 (2014)

The Silva Expedition Type 4  has probably been the most popular base plate compass for hillwalkers for decades as it is ideal if you are bagging summits and backpacking regularly in the UK, and need a reliable navigational tool. The base plate is longer than most compasses, which makes it a little easier to use with maps. It includes the most common map scales for UK users: 1:25,000, 1:50,000 and 1:40,000. The magnetic needle sits in a liquid-filled bezel with the degree markings being very close to the needle end, which makes it easier to set than some designs. The Silva Expedition Type 4’s bezel rotates smoothly and has nodules around the sides for better grip with gloves or wet hands. But you don’t get an inclinometer for measuring angles of slopes, and you cannot pre-set magnetic declination so you have to add or subtract this each time manually.

Specifications:
Size 12.5x6.0x1.0cm
Weight 35g
www.silva.se

Review by Graham Thompson
First published in Trail magazine December 2014