Lifeboat Hulls

[Gludy]

Why are left boat hulls always semi-displacment types and not planing hulls?
After all, it would be reasonable to assume that a planing hull would get to the casualty faster.

 

[mcgarry1]

yet would it not have the stability of a displacement hull?

 

[hlb]

That why the life boats have ribs. So they can operate in the roughest weather close to the shore. Where the seas are deaper and further out, they use a semi displacement boat cos it's not as rough out there!!

 

[Talbot]

planing hull in bad weather is slower and more dangerous, - have you tried a planing hull in a force 11?

 

[Gludy]

I do not think it would have the stability of a displacment hull simply because less is in the water.

 

[Gludy]

"That why the life boats have ribs. So they can operate in the roughest weather close to the shore. Where the seas are deaper and further out, they use a semi displacement boat cos it's not as rough out there!! "

Hlb: Do I understand you to say that lifeboats use ribs to operate in the roughest weather because the lifeboats being SD hulls cannot manage the roughest and so can only operate further out!!!!!!!

So you are saying in an f11 they would not send out the lifeboat to rescue a 30 foot pleasure boat being driven onto the rocks because that would be too rough for it so they would send a rib?????????

 

[Gludy]

Talbot ... thank you for the sanity amongst the madness.

 

[BrendanS]

I'm so tempted to wade in at this point! /forums/images/graemlins/grin.gif

 

[Gludy]

Why not wade in?
I am only asking questions.

 

[Gludy]

I would like to add another question.

How do these lifeboats with Semi-d hulls make it out to the calmer water?
Are they dropped in by helecopter?

 

[gcwhite]

I also note that they don't use Sealines.

 

[rickp]

Yeah, but if I break down in mine, I'm calling out Gludy! /forums/images/graemlins/smile.gif

Rick

 

[mcgarry1]

gludy, don't be daft, they use the star trek technology and instantly transport them to the scene! /forums/images/graemlins/cool.gif see not just a pretty face!

 

[BrendanS]

Well I don't want to drag people into this discussion, but there are people on this forum who have been out in F11's in planing hulls, (I've only been out in a F10 so can't comment), Moose posted on the subject just the other day, and I know some forumites who had a pleasant trip home in such conditions

 

[kindredspirit]

Its amazing where lifeboats can go these days.

They're even in outer space !!!

http://www.space.com/missionlaunches/soyuz_dock_020427.html

 

[Gludy]

Maybe the could set up out to sea lifeboat stations so that they get past through inshore waters -- it would also save on the ramps.

I have to agree though that a "beam me out to sea .. Scotty" has more of a ring to it. But then all you would do is not bother with a lifeboat and beam the casulaty ashore!!!! What an idea, no more money colection lifeboats watching the pennies roll down the ramp

 

[Gludy]

brendan
Wit the greatest of respect are you telling me that some forumites, managed a planing hull in an F11, and had a pleasant rip home????

Are you sure they did not hitch a rifde in an f11 jet fighter instead? and by 'planing' they actually meant plane-ing .... like flying?

Did they make any bacon buttys whilst doing this?

Please name them ...... we have to hear about this.

 

[hlb]

Ah. They get out there, cos there sent down a bloody big ramp thingy at 90 miles an hour. So they cant help planing all the way out to the smooth stuff!! Anyway I once rescued a 40ft boat that the life boat would not go out for. Rescued him in the nick of time. Life boat turned back three times!!

 

[Wiggo]

Well, just to add my two penneth, we left Lymington on Saturday morning. As we were heading down river we got the CG forecast: W/NW F6 - gale 8, occasionaly severe gale 9 later.

13 miles run, through the Hurst narrows with wind over tide and across Christchurch Bay into the wind. 8-10' beam seas, with flying foam from the crests. No sweat. One wave over the flybridge, no slamming. Wife had to drag the kids out of the forward cabin as they were getting a bit boisterous.

Sorry, didn't attempt bacon butties as we'd already eaten. Not another soul out on the water (not even a lifeboat, and even the Traders were conspicuous by their absence). Very comfortable trip at between 22 and 27 knots.

Fire blanket fell out in the galley, but the fruit bowl stayed the right way up.

 

[Wiggo]

Planing boat would get there faster, but if you look on a Severn class boat, they have a little Burco boiler, and so obviously feel the need to make tea while underway. A nice hot cuppa makes everything better...