Here is a tutorial guide I created and used with a group of Year 10 pupils who had undertaken the initial training from the teacher accreditation task and needed further guidance. In the workshop we had been making a small wooden model of a biplane. It was a sketch model aimed at developing skills in designing and making cery quickly as well as intriduce the wood lathe which was used for the main body.
There is nothing particularly hard about this CAD version of the biplane and my pupils followed it easily with some of the measurements as in the tutorial, others taken directly fro their wooden model. From this they moved on to the scalextric4schools project and thoroughly enjoyed it.
Hope its of interest.