Navigation basics: scale and distance's instructor-in-residence Stuart Johnston MIC on the navigational importance of constant awareness of the relation of scale on the map to distance on the ground.  

Don't forget, if you've got any videos you'd like to share with the world you can publish them directly onto this website. Click here to do it now! (If you're having problems viewing this video you may need to update to the latest version which you can do free here.)