Description:
This product allows students to measure the moment due to the fl uid (hydrostatic) thrust on a fully or partially submerged plane. The plane works in either a vertical or inclined (angled) position. Students then compare their measurements with theoretical analysis.The equipment consists of a vertical panel that holds a clear plastic quadrant, to which students add water. The quadrant has engraved lines to help students keep the plane in a vertical or angled position.The cylindrical sides of the quadrant have their central axis coincidental with the moment measurement axis. The total fl uid pressures on these curved surfaces therefore exert no moment about this pivot. Therefore, the moment is only due to the fl uid pressure on the plane test surface. Students measure this moment using weights suspended from a level arm. A scale on the panel of the apparatus shows the head of water.To perform experiments, students level the apparatus using its levelling feet and spirit (bubble) level. They decide whether to test eithera vertical or inclined plane.They then initially balance the quadrant tank using one of the weighthangers and the smaller trimming tank. They take results by balancing incremental weights on the hanger with known quantities of water. They then use the results to calculate the equivalent moment of force (M) or hydrostatic thrust.

Students note the relationship between the moment and the water height (h).The equipment includes non-toxic water dye to help students see the water levels more clearly and a syringe for accurate addition or removal of small amounts of water.
Operating conditions
Operating environment:
Laboratory
Storage temperature range:
–25°C to +55°C (when packed for transport)
Operating temperature range:
+5°C to +40°C
Specification
Nett Dimensions and Weight: 
460 mm wide x 400 mm high x 160 mm front to back and 4 kg (plus additional 1 kg of weights and 500 mL of water colouring).
Packed Dimensions and Weight: 
Approximately 0.11 m3 and 8 kg
Slotted weights:
100 x 10 g
Weighth anger :
2 off 10 g each
Accessories ( in cluded ) : 

• Water colouring
• Syringe

Detailed Specifications
 Is committed to a programme of continuous improvement; hence we reserve the right to alter the design and product specification without prior notice. 
Nett dimensions and weight: 
 670 mm high x 400 mm x 350 mm and 12.5 kg
Approximate packed dimensions and weight: 
 0.18 m3 and 15 kg
Sharp-edged Orifice:
 13 mm diameter
Circular orifice dimensions:

• Length 13 mm, with 60° contraction and 60° diverging section
• Length 13 mm, with 29 mm diameter bell-mouth approach to 60° diverging section 
• Length 60 mm, with 29 mm diameter bell-mouth approach to 51 mm long parallel section
• Length 60 mm, with 29 mm diameter bell-mouth approach, to 30° diverging section and 25 mm long parallel section

Triangular orificed imensions :
 Each side nominally 12.1 mm, including 1.5 mm corner radius
Square orificed imensions : 
 9 mm square
Orifice material :Aluminium
Operating Conditions
Operating environment:
 Laboratory
Storage temperature range:
 –25°C to +55°C (when packed for transport)
Operating temperature range:
 +5°C to +40°C
Operating relative humidity range:
 80% at temperatures < 31°C decreasing linearly to 50% at 40°C