This image is of the mould for one side of the Mach 2 front foil. You can see the main wing and the flap. Actually the word flap is interesting, and out of all the words in the dictionary has it probably has the greatest number of meanings. As an acronym it can also stand for Foreign Language Assistance Programme, and as a word it can mean a "flat usually thin piece attached at one side only"
Both of the above you might become familiar with if you loose yours on foreign soil. Yet if you look closely at the mould you will see something reassuring.. Can you guess?