Author Topic: Ballast in Displacement?  (Read 708 times)

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Moonlight

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Re: Ballast in Displacement?
« Reply #7 on: June 23, 2023, 11:29:20 AM »
When we purchased Moonlight (49) in 2013, we had it trucked from Florida to Lake Erie.  The trucking company wanted a weight, I had no idea how much it weighted so I used the advertised weight of 32,000 lbs.  It was weighted at the first weigh station at 39,000 lbs.  Later, I contacted Queen Long and asked how much it weighted and they said, when it left the factory it weighted 36,000 lbs and I assume that was without mast and rigging and empty.  I have no idea where they get the displacement figures for the advertising.  More recently, travelift weights come in around 40,000 lbs with all our equipment; however, they vary quite a bit. 

jt11791

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    • Renegade's cruising blog
Re: Ballast in Displacement?
« Reply #6 on: June 02, 2023, 06:03:08 AM »
A travel lift operator told me that my 54 was 55,000 lbs. plus or minus 10%.
Jeff Taylor
S/Y Renegade  H54-19

Ambition

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Re: Ballast in Displacement?
« Reply #5 on: June 01, 2023, 11:52:32 AM »
I kwow the question relates to a 49 but our 46 has been pulled out using many different travel lifts and she has always been substantially heavier that the published displacement of ~27800lbs. Travel lift weights have varied between 47,000 lbs and 52,000 lbs  with our cruising gear on board.

Merrill
S/V Ambition H46 #40

joel

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Re: Ballast in Displacement?
« Reply #4 on: May 27, 2023, 04:54:59 PM »
Travel lift scales are not terribly accurate.  Our 49 weighed 38,000 on the travel lift without the mast, same on a truck scale with the mast. Published weight is 32,000. Water tanks were empty, fuel was about 75 gallons. 

Hobiehobie

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Re: Ballast in Displacement?
« Reply #3 on: May 25, 2023, 08:54:39 PM »
I will try again.  My messages keep getting cut off. 
 
I doubt that is correct.  The listed displacement for a H54 is 48,000lbs or 24 tons of which 20,000 is ballast.

At my last splash the travel lift guy reported a weight of 62,000lbs. She was loaded with the normal stuff; dinghy, sails, clothes, tools, spares etc,  but not packed full, empty water tanks but 230 gallons of diesel diesel. 

I think the video probably showed a travel lift with a 30 T limit, and that H54 probably was just over that if she was loaded for cruising.

Personally we always try to use a 50T lift minimum, preferably a 100T+ lift.   But sometimes its just not available.

Hobiehobie

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Re: Ballast in Displacement?
« Reply #2 on: May 25, 2023, 11:33:56 AM »
I don

sjd

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Ballast in Displacement?
« Reply #1 on: May 25, 2023, 11:19:04 AM »
I was recently watching a Hylas 54 get hauled when the lift operator suddenly stopped (keel was still in the water) and said that the boat weighed 10K lbs more than the advertised 50K displacement weight. He claimed that with Hylas's (and Tayana's and Moody's), the ballast amount is not included in the displacement figure.  This seems odd to me as I always thought ballast was included in the displacement figure. Can anyone elaborate? BTW, owner said boat had empty tanks.

 

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