Range v Radius - Ships Nostalgia
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Range v Radius

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  #1  
Old 22nd July 2019, 10:26
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YM-Mundrabilla YM-Mundrabilla is offline  
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Range v Radius

One sometimes sees in a ship's technical data 'range' and sometimes 'radius'.

Rightly or wrongly I interpret these as:
  • 'Range' = from A to wherever until you run out of fuel.
  • 'Radius' = half of 'range' ie A to a point with fuel to return to A.

Am I correct, please?
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  #2  
Old 22nd July 2019, 11:28
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Range, yes I think you are correct (always allowing for reserves etc) radius may be a little different as, surely, some time should be spent "on station"?
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Old 22nd July 2019, 12:45
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I think Range is the distance to the furthest point from the starting point, and have the ability return to that point, or continue to a destination.

Radius is the same I think. Think search areas for aircraft as well as ships.
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Last edited by Dickyboy; 22nd July 2019 at 12:48..
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Old 22nd July 2019, 12:55
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I'd say the OP has it.
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  #5  
Old 22nd July 2019, 16:56
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Range sometimes tied into speed; range at full sea speed and range at economic speed.
Quite often endurance is quoted for naval ships, this takes into account fuel consumption and crew requirements.
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Old 23rd July 2019, 01:31
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Thanks all.
Much appreciated.
In simple terms, my thoughts were more or less correct.
Geoff (YM)
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