julians
Well-Known Member
Do the inflatable tubes on the sides have any function or are they just styling? Given who designed the Hull you'd presume they did something but they don't appear to be touching the water.
Hawk 38 in Lymington
- Thread starter Den100
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Portofino
Well-Known Member
Provide useful beam when healing over in a cornering manoeuvre.
Deflect spray in a chop and counter rolling .
Protect your SY and make pick up / drop offs less of a phaff .
Obviously in flat dead pan calm going straight they will be excess baggage ,but that’s 2% of conditions
In the other 98 % the narrow beam of the footprint will contribute at speed to the seakeeping .
Those “ Cigarettes “ where named because they were disproportionately long and thin .Its all Drag related .
But for extra stability where necessary those rubber bits can be called in with the H38 .
So noddies can feel confident and comfortable within 2 secs at speed in it .
Last edited:
julians
Well-Known Member
Answering my own question again, the text below is taken from the fabio buzzi website
It’s well known that narrow boats are far superior in rough waters, but can have transversal stability problems at rest. The STAB® arrangement fitted to all FB Design models combines the advantages of both rigid hull and inflatable boats. The boat is laterally stabilized thanks to two inflatable elements located on the rear of the hull, which increase the beam without adding extra weight.
These torpedo-shaped inflatable tubes give additional stability to the narrow hulls both at restand at high speed, and also help to reduce the planing time by offering additional planing surfaces. The additional buoyancy helps to reduce the static draught and makes the boat safer in rough seas because of its damping effect, same as a RIB, with the advantage that a boat with a punched Stab® can finish the mission at high speed. Rope handholds and protecting rubber stripes are fitted on the STAB® tubes. The anti-dive fins at the bow create additional lift to reduce the chance of bow diving in following seas. A patented bonding system allows easy replacement of the STAB® tubes by sliding. The boat is still usable if the tubes are removed or damaged.
It’s well known that narrow boats are far superior in rough waters, but can have transversal stability problems at rest. The STAB® arrangement fitted to all FB Design models combines the advantages of both rigid hull and inflatable boats. The boat is laterally stabilized thanks to two inflatable elements located on the rear of the hull, which increase the beam without adding extra weight.
These torpedo-shaped inflatable tubes give additional stability to the narrow hulls both at restand at high speed, and also help to reduce the planing time by offering additional planing surfaces. The additional buoyancy helps to reduce the static draught and makes the boat safer in rough seas because of its damping effect, same as a RIB, with the advantage that a boat with a punched Stab® can finish the mission at high speed. Rope handholds and protecting rubber stripes are fitted on the STAB® tubes. The anti-dive fins at the bow create additional lift to reduce the chance of bow diving in following seas. A patented bonding system allows easy replacement of the STAB® tubes by sliding. The boat is still usable if the tubes are removed or damaged.
petem
Well-Known Member
Provide useful beam when healing over in a cornering manoeuvre.
Deflect spray in a chop and counter rolling .
Protect your SY and make pick up / drop offs less of a phaff .
Obviously in flat dead pan calm going straight they will be excess baggage ,but that’s 2% of conditions
In the other 98 % the narrow beam of the footprint will contribute at speed to the seakeeping .
Those “ Cigarettes “ where named because they were disproportionately long and thin .Its all Drag related .
But for extra stability where necessary those rubber bits can be called in with the H38 .
So noddies can feel confident and comfortable within 2 secs at speed in it .
I'm not convinced about that!