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  #1  
Old 12-05-2010, 05:02 PM
awilson awilson is offline
 
Join Date: Nov 2010
Location: Chicago
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Default Naive question about fuel tanks

So there are no wing tanks? Probably to keep with the wing removal ease?
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  #2  
Old 12-05-2010, 05:12 PM
rgmwa rgmwa is offline
 
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Location: Perth, Western Australia
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Quote:
Originally Posted by awilson View Post
So there are no wing tanks? Probably to keep with the wing removal ease?
Correct. The plumbing is much simpler if the tank is in the fuselage.
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  #3  
Old 12-05-2010, 05:30 PM
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DonFromTX DonFromTX is offline
 
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BUT: I have given thought to putting a long PVC pipe tank in each wing, stuck up thru the large lightening holes. Reckon one could get another hour of cruise that way? Just what IS the diameter of those holes anyway?
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  #4  
Old 12-05-2010, 06:00 PM
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Jetguy Jetguy is offline
 
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Default Add some fuel.

Why not just add one of these! Plus its removable!

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  #5  
Old 12-05-2010, 06:07 PM
awilson awilson is offline
 
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Quote:
Originally Posted by DonFromTX View Post
BUT: I have given thought to putting a long PVC pipe tank in each wing, stuck up thru the large lightening holes. Reckon one could get another hour of cruise that way? Just what IS the diameter of those holes anyway?
I don't know if that is a good idea or not but I do know that when this is done, builder put baffling in them otherwise when they are half full they slosh back and forth when banking. That is a long way to slosh and the weight and momentum can make you over roll. That's what they say anyway.
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Old 12-05-2010, 07:22 PM
rgmwa rgmwa is offline
 
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Quote:
Originally Posted by awilson View Post
I don't know if that is a good idea or not but I do know that when this is done, builder put baffling in them otherwise when they are half full they slosh back and forth when banking. That is a long way to slosh and the weight and momentum can make you over roll. That's what they say anyway.
Wing tanks full of fuel will also impose extra inertia loads on the wing structure, which will reduce the safety margin and possibly overstress some of the parts that you may be relying on to stay airborne.
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Old 12-05-2010, 07:45 PM
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N42AH N42AH is offline
 
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Default Portable Tank

Quote:
Originally Posted by Jetguy View Post
Why not just add one of these! Plus its removable!

John,

Where did you find this tank and fittings?
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  #8  
Old 12-05-2010, 08:18 PM
David Paule David Paule is offline
 
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Location: Boulder, CO
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Those marine tanks leak in negative gs, at least the two in my sailboat do. Since I remove them to take them to a gas station, and the gas sloshes around, it's a bit awkward. This happens even with the vents closed.

I see that yours are rigged to vent overboard, a very good thing.

Other than that, it's a neat solution. Removable, portable, inexpensive.
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  #9  
Old 12-05-2010, 08:19 PM
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Jetguy Jetguy is offline
 
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Wink Where indeed!

The Theory and the basic concept is easy, its finding the hardware locally to make it all come together, that's hard.
I suggest you visit your local Aviation Bass Pro shop or Aero Cabelas. They have some great stuff for Airplanes.

http://www.basspro.com/Moeller-Marin...05455/-1339432
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  #10  
Old 12-05-2010, 08:47 PM
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Quote:
Originally Posted by awilson View Post
I don't know if that is a good idea or not but I do know that when this is done, builder put baffling in them otherwise when they are half full they slosh back and forth when banking. That is a long way to slosh and the weight and momentum can make you over roll. That's what they say anyway.
If you keep the ball centered, the tanks don't know (or care) if they are banked or not...
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