Angélique, thanks for posting photos of these Dutch shoal-draft boats. I am particularly amazed by the steel-wood hull joint of the Botter Bössel. (BTW, what does Botter Bössel mean? Google translates it as Butter Bössel.)
Botter (sort of translation) is the name of the kind of boat, I don't know the etymology of the word, this
etymology source (sort of translation) gives too many explanations.
See it like ‘‘
Smack’’ is the kind name for
Smacks, fishermen Botters have a fish well like the
Well Smacks.
( Boter -with one ‘‘t’’- in Dutch = Butter in English )
‘‘
Bössel ’’ is a word in
Tweants dialect of the
Twenthe region where the builder/owner lives, it means something like ‘‘
kwajongen ~ rakker ’’ in Dutch, which could be translated to something like ‘‘
varmint ~ rascal ’’ in English I think.
Are composite steel/wood hulls common in the Netherlands?
As far as I know this one is unique.
I would have thought that keeping the joint watertight and the wood in good shape would be a challenge, especially with the differing thermal coefficients of expansion. Do you know what type of sealant is used? SABA-KIT+MTB doesn't mean much to me.
In the sketch, below the 60x60x6 angled steel profile, it says ‘‘
SABA Sealer MTB ’’ which is aligned/underlined to the words ‘‘
SABA-KIT+MTB ’’ in the luting layer.
-- Here some specs:
SABA Sealer MBT ---
SABA Sealer MB-T --
(PDF's in Dutch) -- Note: I'll guess ‘‘
MTB ’’ in the sketch is a slip for ‘‘
MBT ’’ --
BTW, one of the things in the small handwriting in the sketch is the calculation that the 5 mm thick luting layer requires 12.5 liters of the
SABA Sealer MBT for the total of ± 20 m wood-steel joint around bottom. Can't read all the other things because it's not complete displayed.
I'm thinking the oak corner piece is essential for keeping the wood planking firmly in the steel pocket. But I wonder why they didn't allow the inner two layers of oak to extend into the pocket, and the just butt the outer layer of oak against the steel? Seems to me that method would be stronger than assuming the glue joint between the angle and the inner layer of plank would hold?
In the link above the sketch the builder gives an explanation about the joint, but there is a lot of jargon of which I don't know the right English words, so I can't give a good translation. The Dutch magazine
Spiegel der Zeilvaart had earlier this year 2 times an article about
Bössel in which the joint was discussed in more detail, but there was also too much jargon for me to give a good translated resume in English.
Do you know how seaworthy these types of boat were? Are they mostly for sheltered water use, or can they also be used in the open oceans?
Botters were used mostly for fishing on the former
Zuiderzee, but they were also used for coastal fishing on the
North Sea.