A member of the West Manchester Radio Club, David Forshaw, very kindly brought in a portable 2M yagi for me to try out so I thought I'd take note of all the dimensions and construction techniques so that I could replicate it (and pass it on to others).
The longest piece is 46" which is pretty long, but with everything being made of aluminium, it's still quite light. It folds quickly, so you could slip in in a thin shoulder bag and carry it around easily.
NOTE that the driven elements terminate inside a plastic component case which is secured to the boom with a bolt and wingnut, so it's a very simple operation to loosen the wingnut and turn the driven element 90 degrees so it is lined up with the boom for storage/transporting.
The other two elements are also secured with wingnuts.
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