BBC Sport - Get Inspired: BBC Breakfast take a tour round three Olympic-class boats
Know your 470s from your 49ers?
- From the section Sailing
Don't know your 470s from your 49ers?
Don't worry - you won't be alone.
Sailing can sound strange to the uninitiated, but BBC Breakfast's Lorna Gordon has been to find out what the difference is between three Olympic-class boats.
If you want to find out more about getting into sailing, take a look at our special guide.