Developed by Maierform SA, bulb consists of two similar bowl shaped shells attached to each side of rudder; bowl may be fitted completely watertight, partially watertight or filled with water, to give most favorable load; purpose is greater propulsive efficiency and maneuverability; speed of ships so fitted is reported increased by as much as 0.8 knots; results of trials of 2500-ton Baltic Exporter with and without device.
Costa propulsion bulb
Brit Motor Ship
British Motor Ship ; 34 , n 400
1953
2 pages
Article (Journal)
English
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Engineering Index Backfile | 1959
|Engineering Index Backfile | 1963
|Innovations and research work in field of Costa propulsion bulb
Engineering Index Backfile | 1959
|Testing Costa propulsion bulb with view to its use on modern ships
Engineering Index Backfile | 1961
|Testing the Costa propulsion bulb with a view to its use on modern ships1
IOS Press | 1961
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