Hydraulic drive system - ever seen anything like this?

[smdg77]

A pair of retractable hydraulically driven legs, powered by a large pump driven by a Perkins 6354 6cyl diesel. 60ft vessel constructed of 10mm aluminium, looks to be an "expedition" type design. We're starting to look at her as a liveaboard global explorer, she needs a lot of work, but I can see such potential in her!

[Khaos13]

Wow, I'd love to know more about that drive system. More about the boat too! More pics please.