Metacentric Height Apparatus Manufacturer,Supplier and Exporter in India
Product Code : EL-TWL-9124
Jlab Export is a leading Metacentric Height Apparatus Manufacturer,and suppliers in India
A flat-bottomed ship model, 380 x 250 x 170 mm, floats in a water tank with a clear front sheet. Moving weights along a crossbar heels it over, and a pointer reads the angle up to ±15°. The metacentric height follows from the weight moved, its distance from the centre line and the angle, with the load on the deck or at the base.
Specifications
| Ship model | Flat-bottomed, semi-circular, 380 x 250 x 170 mm |
| Loading | Load placed on the deck or at the base |
| Tank | 60 x 60 x 30 cm, transparent front sheet, epoxy painted inside |
| Water level | Piezometer tube on the tank |
| Heel measurement | Pointer, up to ±15° |
| Tilting weights | Movable weights on a crossbar at known distances from the vertical axis through the C.G. |
| Hanging weights | Five, 50 g each |
| Minimum order quantity | 1 unit |
| Dispatch time | Usually 14–18 working days |
| Manufacturer | JLab (Jain Laboratory Instruments Pvt Ltd), Ambala, India |
Practicals on Floating Stability
Students first weigh the model with its load and weights on a Platform Balance to get the total floating weight W. Shifting a weight w by x along the crossbar tilts the model, and the pointer gives the heel θ once it settles. Then GM = w x / (W tan θ). Students repeat this for three or four distances on each side and take the mean of the results.
As a lead-in, the Set for Archimedes Principle Experiment shows that a floating body displaces its own weight of water. On this tank, the rise on the piezometer tube times the 60 x 60 cm plan area gives the displaced volume, which checks the weighed W. Repeating the test with the load on the deck and then at the base shows how a higher centre of gravity cuts GM.
Frequently Asked Questions
What does the metacentric height tell us?
It is the height of the metacentre M above the centre of gravity G. When M is above G, a small heel sets up a moment that turns the model back. A bigger GM gives a quicker, stiffer roll. With G at or above M there is no righting moment, so the model stays heeled or capsizes.
Why should the heel angle be kept small?
The formula GM = w x / (W tan θ) assumes the metacentre stays fixed, which holds only for small angles. The pointer reads up to ±15°, but GM values are most consistent when the weights are set to give a heel of a few degrees.
How does moving the load change GM?
At the same displacement the model floats at the same draft, so the metacentre hardly moves. Loading the deck raises G and so reduces GM, while loading the base lowers G and increases it. Students see this as a larger heel for the same tilting moment.
What are the five hanging weights for?
They are extra known weights of 50 g each. Hung on the crossbar at known distances they give more tilting moments. Added to the model, they change W in steps and give a GM value for each load.
Other Hydrostatics and Stability Apparatus
- Metacentric Height Apparatus (hollow ship model, cargo and warship loading)
- Metacentric Height Apparatus (stainless steel pontoon)
- Hydrostatic Pressure
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Last updated: 6 November 2026
