Kirt,
The original boards had a longer chord around 330mm.
That was reduced to 290mm before I built my first Taipan.
I'm not aware of a change in length although the earlier boards look shorter but that may have been because of the longer chord.

Regards,
Phill

I know that the voices in my head aint real,
but they have some pretty good ideas.
There is no such thing as a quick fix and I've never had free lunch!