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DetailsOriginal Format: 16mm Colour: Colour Sound: Silent Duration: 17 mins 40 secs Credits: National Physical Laboratory
Subject: SCIENCE / TECHNOLOGY
Summary This is a film by the Ship Division National Physical Laboratory, part of the Hull Maritime Museum Collection. It shows experiments on a model boat in a large water tank subjected to waves.
Description
This is a film by the Ship Division National Physical Laboratory, part of the Hull Maritime Museum Collection. It shows experiments on a model boat in a large water tank subjected to waves.
Opening Titles: Ship Division National Physical Laboratory
Project 20.98 Experiments in Waves No 4 Tank
For Clelands Shipbuilding Co ltd., Wallsend, Northumberland
Ship Dimensions: Length 34.90m Beam 9.44m Draft fwd 2.86m Draft Aft 4.13m Displacement 680 tonnes
Model 5280 Scale 1:20.24
Filmed at...
This is a film by the Ship Division National Physical Laboratory, part of the Hull Maritime Museum Collection. It shows experiments on a model boat in a large water tank subjected to waves.
Opening Titles: Ship Division National Physical Laboratory
Project 20.98 Experiments in Waves No 4 Tank
For Clelands Shipbuilding Co ltd., Wallsend, Northumberland
Ship Dimensions: Length 34.90m Beam 9.44m Draft fwd 2.86m Draft Aft 4.13m Displacement 680 tonnes
Model 5280 Scale 1:20.24
Filmed at approximately 108 fps Project at 24 fps to simulate ship speed
Intertitle - Calm water 13 knots
The film begins showing the model boat moving across the water in slow motion, with small waves.
Intertitle - Calm water 4 knots
The model boat moves across very still water.
Intertitle - Sea state Beaufort force 6, significant wave height 3.9m 13 knots, Head seas.
This time the model boat is shown bobbing up and down in very turbulent water.
Intertitle -13 knots, Stern seas.
This shows the model boat being subjected to high waves coming from the direction of the stern (the rear or aft-most part of the boat).
Intertitle -4 knots, Head seas
This shows the model boat moving in the direction of the waves coming towards it.
Intertitle -4 knots, Stern seas
Again this shows the reaction of the model boat to waves coming from the direction of the stern, only much smaller.
Intertitle -Running Astern, 4 knots, Head seas
The model boat is shown with the waves coming towards it, filmed from the stern.
Intertitle -Running Astern, 4 knots, Stern seas
The model boat is shown with the waves coming from behind it, filmed from the front and stern.
Film by NPL Film Unit