I have been digitising a whole lot of old VCR tapes. I post a few here as I finish them.
This one is a clip from a late 80's or early 90's video called Raw Power.
13"-14" Which is 33-36cm in todays metric.
It is interesting that we have found we are faster on slightly wider boards these days. Most of the boards going very fast at Luderitz are in the 39-44cm range.
In some of the shots, you can see some extreme crabbing as well. Boards still do crab of course, but modern assymetrical fins have reduced it significantly. 
Those little boards look deadly with their needle noses..
How many litres were they?
Select to expand quotesboardcrazy said..
Those little boards look deadly with their needle noses.. How many litres were they?
No one really measured the volume in those days. They were all hand shaped so not help with CAD to get the volume.
I am guessing that many were less than 50 litres, but when boards are that small and narrow, the Volume become pretty irrelevant. They are what we used to call 'sinkers'. 
The width and length become much more defining than their volume, and you need a LOT of wind to get them going. Having more or less volume makes virtually no difference to starting at these sizes.
