4 if we count the steering wheel and pulleys!

[Carlos]

The English built "Aquabird" built for "Runabout" racing in the late 1960's ... I so wish I had never sold it!

 

[Txpowdercoater]

wicked, I'd bet it was a lot of fun!

 

[Carlos]

Great fun especially on a calm lake ... fly across the smallest of waves and it felt like you had been dropped onto concrete!