Youtube user annanoli tells us:

Italian liner Principessa Jolanda sinks during launch because of defective ballasting and errors in calculations. Moreover many portholes were left open, and a donkey boiler exploded for the flood. The sistership Principessa Mafalda was launched two years later after extensive reduction in height. She was lost in 1927 for she lost tailshaft in mid-ocean and successive flood could not be stopped.

The wreckage of Principessa Jolanda was scrapped,engines salvaged were reutilized.

If any gCaptain readers have more information on this incident then please leave a comment below.

MarineBuzz brings us photos of the M/V Bohai Challenge, being launched on what appears to be Yokohama Fenders (official they’re not Yokohamas). They tell us;

Qingdao Yongtai shipping supplies co.,ltd has come out with a novel product called Intense pneumatic tire for ship lifting, loading and floating. These highstrength pneumatic tubes are useful in cargo boat launching and landing, clog lifting and moving, sunken ships salvaging and stranded boats saving. The product is suitable to launch ships up to 7000 tons.

CLICK HERE for more photos from Marine Buzz.

Also, in researching this post, I came across an excellent transcript from a Nautical Institute presentation by Captain Eric Southworth, Director of FenderCare. He tells us;

Originally, Japanese ships used dead whales as large fenders. They were replaced after WW2, when the Japanese tyre manufacturer ‘Yokohama’ was asked to come up with a suitable man made alternative, hence the birth of “‘Yokohama” fenders. Before 1975 wheel type fenders were commonly used in positions 2 & 3, with “Yokohama “pneumatic fenders in positions 1 & 4. (All four positions are along the parallel midbody). Smaller secondary fenders may be used to protect the bow and stern plating from inadvertent contact during mooring and unmooring.

Read Captain Eric’s full transcript on fender history, use and maintenance HERE.