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Old 21st Feb 2016, 18:20
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RMC
 
Join Date: Apr 2003
Location: Sutton
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Hey Toggle,

Trent Oil Capacity
Nominal total oil system capacity (78.2 imp pints)
Nominal oil tank capacity (41.0 imp pints)
Usable oil (including effect of attitude) minimum (27.1 imp pints).

Typical Aircraft FUEL tank capacity 235,000 imperial pints
Unusable fuel (190 imperial pints)
Fuel feed pipe capacity (350 imperial pints)

Could you give these ratios some thought

There is more than one cause of oil loss apparently...bearing seals is one I know about.
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