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2 Answers

CR3: L – kg conversion

Asked by: 12165 views Student Pilot

Hi,

 

Although I can use Jeppesen CR3 calculator to easily convert gallons to pounds & vice-versa, I can see that it is not as simple when attepting to convert litres to kilograms.

 

Please NOTE; I have consulted the Jeppesen manual with no success and/or similar problem.

 

Could someone please advise what method(s), if any, can bring about the desired result?

 

Cheers,

 

Ben - Recreational Pilot

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2 Answers

  1. Best Answer


    Jim Foley on Feb 22, 2012

    Although I cannot comment on the workings of the CR3, it is a simple calculation to do with any calculator, or just basic math.  AVGAS has a standard density of .721 kilograms per liter.  I’m assuming you are tryiing to find the weight of your fuel on board, so simple take .721 times the amount of fuel.  For example, take the standard 172R with about 200.6 liters.  200.6 times .721 equals 144.6 kg.

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  2. Ben Jenkins on Feb 28, 2012

    Hi Jim,
     
    Thanks for the reply. The calculation you mentioned is quite straightforward, however I thought that perhaps a SG factor had been introduced into the CR3 for direct conversion, for such a factor obviously exists when directly converting b/w pounds>gallons & vice-versa.
     
    Could someone please shed some light on this?

    Cheers,
     
    BJ

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