[K1W1]

Hi,

After being involved in extensive tank testing of a boat with an Vertical Bow and a 4 Fin Stabiliser System it was proved that in order for the Stabs to have any noticeable effect on pitch a speed of 18 kts and above was needed and the forward fins were switched to purely pitch control.

Given the results of the Tank Testing the client didn't opt for that facility and just stuck with a standard 4 Fin install.

[SAB]

The Feadship 72m reverse bow yacht 'Predator' Captains report:

‘The yacht handles better
than any I have ever sailed. We
have been in 5m seas and Predator
throws no bow wake.’
Capt Drewes is equally
impressed with the comfort standards
in other ways too: ‘The specs
on noise, vibration, speed and
handling also surpassed our highest
expectations. We averaged 20
knots with two engines running at
1,500rpm, and at that speed
Predator is as smooth as other
yachts I have run at seven knots.

[RobVer]

Originally Posted by SAB

The Feadship 72m reverse bow yacht 'Predator' Captains report:

‘The yacht handles better
than any I have ever sailed. We
have been in 5m seas and Predator
throws no bow wake.’
Capt Drewes is equally
impressed with the comfort standards
in other ways too: ‘The specs
on noise, vibration, speed and
handling also surpassed our highest
expectations. We averaged 20
knots with two engines running at
1,500rpm, and at that speed
Predator is as smooth as other
yachts I have run at seven knots.

Couldn't agree more. Lightweight vessels with heavily flared, blunt bows 'stop' dangerously, leaving one few choices and, therefore, at the mercy of anything over three metres or so.
To be seaworthy, any vessel needs to be able to make reasonable controlled way with, at the same time, an acceptably easy motion.
Any vessel without a soft 'punch' is, quite simply, dangerous.
Young 'naval anarchists' (sic), even many in the commercial world, should be made to abandon their bloody laptops, go to sea for a few weeks in northern latitudes and stand a few watches in real seas.
The Norwegian Ulstein company, with their (unique?) team of sea-time educated designers, have finally made acceptable the 'X' bow and the Axe bow. We are making progress there, but elsewhere at about the same speed as the usual yacht trying to go upwind in a seaway.

[Laradc]

Hi does anyone know of any reverse bow yachts currently under construction. I love 'a' and Predator and was lucky enough to see Predator in Palma. The photos i've seen do not do it justice.

Thanks Lara

Originally Posted by CaptEvan

I came across this interesting review on the merits of axe bow design and the enlarged ship concept. It was performed by Damen, parent company of Amels, and Delft University, with the results shared in a yacht design symposium last November in Amsterdam. Lars, you were likely in attendance.

http://hiswasymposium.com/pdf/2006/J.%20Gelling.pdf

The improved efficiencies and enhanced sea-keeping are quite impressive. I understand Damen has delivered at least 4 axe bow fast patrol and supply vessels, and hint at the yacht market. While they state a prospective yacht owner would need to be enthusiastic about the modern design, it is also an invitation for rebirth of some classic profiles.

Also of note, was their aborted tests on a wave-piercing model.

This brings to mind the "mystery bow" of the gorgeous subject of a prior thread shown below.
http://www.yachtforums.com/forums/ge...-way-work.html



Would love to hear your thoughts.

Evan