Jack
I owned one many years ago, white tubes, yellow console 4.2m with a yam 50HP 2 stroke, manual start.
Top speed with a standard prop was about 40mph.
Great on a flat day, but like many inflatables with fitted consoles they don't like waves (and to be honest a 4m searider with a 50hp is going to beat the futura hands down when it gets a little rough)
Check for stress factures where the console is bolted to the deck and rubbing at the bow end of the deck, as the nose did like to flex when pushed hard.
Speed tubes also seem to suffer from air leaks, will some folks using emergency tyre repair foam to solve the problem (but will limited results).
David
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