# Hull aluminium weight

Discussion in 'Boat Design' started by Armer SB, Jan 31, 2007.

1. Joined: Jan 2007
Posts: 4
Likes: 0, Points: 0, Legacy Rep: 10
Location: Dubai UAE

### Armer SBNew Member

Kindly in need of a basic aluminium hull weight calculations. for rough design purposes.

2. Joined: Apr 2005
Posts: 1,042
Likes: 37, Points: 0, Legacy Rep: 535
Location: TRIESTE (ITALY)

### RANCHI OTTONaval Architect

Weight estimation of aluminum...

The points are derived from constructed boats

#### Attached Files:

• ###### WeightDiagr-1.jpg
File size:
165.4 KB
Views:
1,680
3. Joined: Apr 2005
Posts: 1,042
Likes: 37, Points: 0, Legacy Rep: 535
Location: TRIESTE (ITALY)

### RANCHI OTTONaval Architect

Another one..

#### Attached Files:

• ###### ASD_Alu_Weight-1.xls
File size:
14.5 KB
Views:
745
4. Joined: Jan 2007
Posts: 4
Likes: 0, Points: 0, Legacy Rep: 10
Location: Dubai UAE

### Armer SBNew Member

thanks for the info rancho, this would be very useful i've really appreciate it. tell me i had a spreadsheet here regarding this issue. I've have some doubts on the density (mark in red) formula cell. Could you kindly help me beacuse im very new to this type of system. The person who make this had already left and not much information was given.

#### Attached Files:

• ###### Estimated Hull weight (23.8 m crew cargo vessel)(xxx-FA650 Rev 3A).xls
File size:
28.5 KB
Views:
679
5. Joined: Apr 2005
Posts: 1,042
Likes: 37, Points: 0, Legacy Rep: 535
Location: TRIESTE (ITALY)

### RANCHI OTTONaval Architect

The weight pro square meters is as follows:

Hull > 1m x 1m x 2760kg*m^3 x 10mm = 2760 kg*m^2
Keel > 1m x 1m x 2760kg*m^3 x 20mm = 5520 kg*m^2
Sup > 1m x 1m x 2760kg*m^3 x 7mm = 1932 kg*m^2

This means that the estimated weights are besed on the following thickness for a gamma aluminum = 2760 kg*m^3

Hull > 10 mm
Keel > 20 mm
Sup > 7 mm

OK?

6. Joined: Jan 2007
Posts: 4
Likes: 0, Points: 0, Legacy Rep: 10
Location: Dubai UAE

### Armer SBNew Member

Thanks, and it looks alright.

7. Joined: Mar 2005
Posts: 3,644
Likes: 185, Points: 63, Legacy Rep: 2247
Location: Pontevedra, Spain

### GuillermoIngeniero Naval

Ranchi, 2760 kg/m2.....?
Cheers.

8. Joined: Apr 2005
Posts: 1,042
Likes: 37, Points: 0, Legacy Rep: 535
Location: TRIESTE (ITALY)

### RANCHI OTTONaval Architect

Guillermo is right...

Hull > 27.6 kg*m^2
Keel > 55.2 kg*m^2
Sup > 19.32 kg*m^2

sorry.

9. Joined: Apr 2005
Posts: 1,042
Likes: 37, Points: 0, Legacy Rep: 535
Location: TRIESTE (ITALY)