lpdsn
Well-Known Member
Maybe this could be combined with airbag technology...
Bavaria Keel Problems
- Thread starter Skylark87
- Start date
Maybe this could be combined with airbag technology...
awol
Well-Known Member
.... allied with anti collision radar to activate the bags and turn the boat turtle thus protecting the keel?
Tranona
Well-Known Member
Or redesign the boat like the latest proposal for the AC boats which have dual purpose ballast keel/foils that can be lifted right out of the water. Can also act as bilge keels to dry out on a sandbank.
Perfect for the East Coast.
lpdsn
Well-Known Member
You could combine them all to allow the boat to jump out of the water and stand on the rock quivering.
rudolph_hart
Well-Known Member
UPDATE:
I don't know if it's a co-incidence, but I've just received an email from Inspiration Marine (Dehler & Hanse Agents) explaining how they have bonded-in steel frame reinforcement in the floors & chainplate areas on their yachts. Piccies as well.
Spooky or just pro-active market research?
Tranona
Well-Known Member
That is very misleading. They have steel plates under the keel bolt nuts - not a framework. (Just the same as Bavaria, incidentally). The "framework" is a GRP moulding glued and bonded into the hull which is a pretty common method. The loads for the chain plates (which are bolted through the topsides) are taken by reinforcement in the layup down to the keel area - again just the same as Bavaria. Nothing special about their method of construction. It is different from older designs, partly prompted by the updated standard for keel attachment, partly by the move to wider based shrouds and partly because it is easier to produce in the more automated production processes.
Gives the marketing people something to talk about rather than the endless choice of fabrics for the interior!
gertha
Well-Known Member
Hope this helps as is wording from Hanse email, there is a small misunderstanding of what they claim.
Their bombproof engineering is centered around a huge structural subframe, which is both bonded and laminated into the hand-built hull. This subframe is then further reinforced with large steel plates to spread the keel loadings through the subframe. On a Hanse, your keel is bolted through the hull, subframe and steel plate – great peace of mind.
Not to say that Bavaria and all other do not put the same effort in , this is the Hanse angle.
As a side note, galvanised frames can and will corrode over time, these can be impossible to remove.
X Yachts famously promote there steel frame; but if one goes aground the boat is a write off as repair is not economic.
Swan use a steel keelson; but designed in a way that it can be removed for maintenance, a few days work to remove, however the ability to maintain such a principle component creates a design that is close to bomb proof.
The likes of Hanse and Bavaria make good boats for the money, the design and construction is not dissimilar to a Reliant Robin the Scandinavians have a construction closer to a Lotus.
Simon
Their bombproof engineering is centered around a huge structural subframe, which is both bonded and laminated into the hand-built hull. This subframe is then further reinforced with large steel plates to spread the keel loadings through the subframe. On a Hanse, your keel is bolted through the hull, subframe and steel plate – great peace of mind.
Not to say that Bavaria and all other do not put the same effort in , this is the Hanse angle.
As a side note, galvanised frames can and will corrode over time, these can be impossible to remove.
X Yachts famously promote there steel frame; but if one goes aground the boat is a write off as repair is not economic.
Swan use a steel keelson; but designed in a way that it can be removed for maintenance, a few days work to remove, however the ability to maintain such a principle component creates a design that is close to bomb proof.
The likes of Hanse and Bavaria make good boats for the money, the design and construction is not dissimilar to a Reliant Robin the Scandinavians have a construction closer to a Lotus.
Simon
