Comfort Index what's yours?

prv said:
Are you sure?

Quite a few people seem to have got results like that when they slipped up in the arithmetic.

Pete
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LOA 31'
LWL 28.8'
Beam 10.6'
Displ 7050lbs

I think I'm right, maybe someone could check......:confused:

Just recheccked & got 15.83....:eek:
 
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measure it folded and sail it stretched! Neighbour in my old berth had one and was constantly moaning about things breaking.
 
Can Someone Check Me-Sums?

Just where is me-owd Actuarial pal when I need him, or Gillian with her PhD in applied maths?
And p-lease don’t mention ‘magic numbers’ ….. once in my lifetime is enough! :confused: :o :(

So!

With:

Displacement 4,400 lbs
LWL 19’ 10”
LOA 23’
Beam 8’ 4”

I make it 19.3
 
jimi said:
measure it folded and sail it stretched! Neighbour in my old berth had one and was constantly moaning about things breaking.
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As you say, it's all bullocks anyway.

A DF is a high maintenance boat, but I'd have thought that is apparent to anyone considering one, same as a Lotus or TVR is going to need more spanner time than a Mondeo. With proactive maintenance and sticking to the manufacturer's schedule I've not had much fail unexpectedly in 10 years - the worst was when a backstay jammer exploded with a bang and a shower of bits of bent metal.

They're not for everyone - different boats for different folks.
 
Mind you, being able to nip across the channel for a spot of lunch and be back in time for last orders does have its attractions!
 
Oceanis 411

Displacement 18,700 lbs
LOA 40.5 ft
LWL 36.1 ft
Beam 12.9 ft

Comfort Index 25.37

That's before SWMBO has loaded it up with all her essential bits and pieces!!:rolleyes:
 
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Would somebody please confirm the answer to this one before I divulge the vessel?

Disp 371,840 Lbs.
Loa 135'
Lwl 87'
Beam 21'
The CI might surprise you!
 
Just read the article... interesting to see that 'Lively Lady' comes out at 68.52 (which is significantly higher than all the others in the article - the Rival36 is the nearest with a CI of 35.86)... I thought LL (and others such as Gipsy Moth) were prone to 'pitching' giving a pretty uncomfortable ride... maybe I'm wrong (which is more than probable)?
 
Certainly GM wasn't reported as a 'comfortable' boat... which about nails the value of this calculation..... a boat may weigh 40,000lbs, but if 15,000 of those pounds is a long way from the CoG, then it'll see saw like a ...well.... see saw!.... a lighter boat with much less percentage of weight out at extremes in the overhangs might be a bit more 'cork like', but it'll not have anywhere near as much pendulum motion....

...so take the number as a guide, not a rule!
 
I reckon the 'Can-you-sleep-in-the-forecabin-underway?' measure is perhaps more realistic.
Points awarded for crashhelmet advisories, time airborne between oncoming waves, and bruises accrued after 6 hours to windward. Less actual miles made to windward of course
And downwind the comfort index might include 'all buttoned up' bonus points awarded for body mass lost due to sweating in airless humidity.

Fwiw mine( Rustler36@ 35.8) is exactly the same as a Rival36 but different keel, rudder and stern configs, both built ostensibly to do the same business. Who knows, eh? Not sure I could sleep in the forecabin in a hard blow in any boat..
 
Blueboatman said:
Not sure I could sleep in the forecabin in a hard blow in any boat..
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Even on my favourite 600-ton sailing ship, the deckhands and other volunteers who berth forward have been known to sneak into spare bunks in the watch cabins amidships when it gets really rough.

Pete
 
Rebecca & Steve said:
Yep, me too, so guess the 'Slow, heavy, slug'?
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Yep, thirded for 97.5... not the Hermes-Wally Yacht by any chance?

why_RfoT3_12.jpg
 
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