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Fuel tank sizing question - 1/27/2013 2:30 PM   
velottatv


 

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Trying to determine proper fuel tank size for a DLE35-RA. Had an 800cc tank planned but its too tight in the layout.

Will a 550cc (18.5 oz) work? This is in an RC Guys' AG Wagon. How long at normal flying speed do you think this tank will last?



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RE: Fuel tank sizing question - 1/27/2013 2:43 PM   
pe reivers



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Status: offline 		That tank should last about 15 minutes at WOT


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RE: Fuel tank sizing question - 1/27/2013 2:55 PM   
Pete Bergstrom


 

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Status: offline 		That should work just fine. Fuel burn should be 1.2 oz per minute at WOT. 

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RE: Fuel tank sizing question - 1/27/2013 3:18 PM   
SOLO_48


 

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Status: offline 		16 oz is good enough

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RE: Fuel tank sizing question - 1/27/2013 4:38 PM   
hauckf


 

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Status: offline 		I've read this "rule of thumb" few time on this forum: "A gas engine with a conventional muffler burns approximately its displacement in cc's each minute at full throttle." That would seem to agree with the other replies. (550/35=15.7 min.)

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RE: Fuel tank sizing question - 1/27/2013 4:58 PM   
karolh


 

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Status: offline 		What's the approximate difference between WOT and say 3/4 throttle, and would using a linear measure be a reasonable assumption.

Karol

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RE: Fuel tank sizing question - 1/27/2013 6:01 PM   
pe reivers



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Status: offline 		it is load dependent, not throttle position.
True assumption: You will use less.


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