NA8 Ships Stability Apparatus

 

NA8 Ships Stability Apparatus

The NA8-10 Large Angle Stability System is designed for the study of ship hydrostatics and stability. A comprehensive manual provides hydrostatic stability and other data for ship models and includes a number of experiments which are useful to students.

Description

The NA8-10 Large Angle Stability System is designed for the study of ship hydrostatics and stability. A comprehensive manual provides hydrostatic stability and other data for ship models and includes a number of experiments which are useful to students.

Exercises are conducted on a 1/70 scale model of a general cargo vessel of 28000 tonnes ship mass. Rolling, righting and the effects of flooding various compartments may be studied. Optional alternative ships models are also available for study.

Technical Specifications

Features & Benefits

Exercises are conducted on a 1/70 scale model of a general cargo vessel of 28000 tonnes ship mass.
Rolling, righting and the effects of flooding various compartments may be studied.

Optional alternative ships models are also available for study.

Downloads

  • Inclining experiment
  • Influence of a free surface
  • Influence of a suspended mass, (with the optional crane ship model)
  • Effect of flooding various compartments
  • Rolling experiments

The model supplied is a 1/70 scale model of a 28000 tonne general cargo vessel

– It includes a number of transverse watertight bulkheads in representative positions
– The compartments are fitted with individual flooding valves
– The model is constructed of glass reinforced plastic (GRP)
– Models of other ships are available as optional accessories

  • Apparatus designed to enable students to study ship hydrostatics and stability
  • Supply includes a water tank, a floating ship model, a dynamometer and a clinometer
  • The dynamometer measures the righting moment of the model
  • It holds the model at any angle of heel within the range, with the model either free to trim or with heeling axis kept horizontal
  • It exerts no vertical force on the model
  • It is floor standing, with castors and is supplied complete with counterweights
  • Battery powered clinometer measures the inclination of the model, over the range of 0 to 45 degrees

NA8-14 Trawler Model: A 1/25 scale model of an ocean going trawler of 850 tonnes ship mass constructed in glass reinforced plastic (GRP). The hull is fitted with a number of transverse watertight bulkheads in their correct positions. Flooding valves are fitted.

NA8-15 Crane Ship Model: A 1/50 scale model of a crane ship typical of those used in off-shore industries. The hull is ballasted and fitted with a moveable derrick supplied with a number of masses for suspension.

NA8-16 Rectangular Barge Model: Moulded in GRP, dimensions 2200 x400 x 250mm and fitted with internal bulkheads, supplied with a collection of ballast and trimming weights.

Electrical supply:

NA4-10-A: 220V-240V/1ph/50Hz, 2A
NA4-10-B: 120V/1ph/60Hz, 4A

Free water surface, if NA4-11 Flotation Tank not ordered

Packed and created shipping specifications – NA8-10 Only

Volume: 3.0 m³
Gross weight: 550 kg

Overall dimensions – NA8-10 Only Ordering codes

Length: 2.66 m
Width: 1.95 m
Height: 2.17m

  • NA4-10
  • NA4-11
  • NA8-10
  • NA8-14
  • NA8-15
  • NA8-17

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