One of the super-yacht projects was
for MID to design a cradle system for
a 600 tonne 62m sailing yacht to be
hauled on a New Zealand slipway.
The unique challenge was to design a
cradle that could allow the yacht to be
jacked 1.5m in the air after the yacht
was hauled out of the water. This was
to allow for removal of the yacht’s
lifting centreboard keel which, in itself,
was a 60 tonne, 10m x 3m blade.
A cradle structure was designed,
with shaped beams on moving legs
contained within fixed uprights, and a
jacking structure provided for hydraulic
jacks. The shaped beams were fitted
to the hull shape using a laser scan of
the hull (from an earlier haul out). The
vessel was successfully jacked (by an
Auckland specialist rigging contractor)
using 14 synchronised single acting
jacks. MID also provided the removal
design for the keel.
Keel removal is underway as we write.
For any enquiries or more information regarding MID contact Jason Smith, MID Manager MRINA C.Eng
Tel: +64 9 419 8440, Mob:+64 21 020 36 438, DDI:+64 09 4450736