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  #11  
Old 05-20-2015, 08:06 AM
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dmaib dmaib is offline
 
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Location: New Smyrna Beach, FL
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I installed the Safeair ER tanks back in 2007/2008 during construction. My wings were quickbuild, but I felt like the installation was straighforward and the instructions and customer support were very good. The quality of the hardware is excellent. Six and a half years and 780 hours later they have performed flawlessly. I agree with Jesse. While I could fly the airplane six and a half or seven hours with the ER tanks, that is not my primary reason for installing them. I too, operate 55 to 60% LOP most of the time. Being able to have enough fuel for an alternate in IFR, being able to fuel round trip, and being able to "tanker" a bit when I come across good fuel prices are my reasons. I don't remember just how much weight they added, but I was building a heavy airplane anyway, (air conditioning) so, wasn't too concerned about that. CG is not affected at all, so I liked that.
Are they a necessity? No. Am I glad I installed them? Yes.
Sorry, I don't have any pics that I can access right now.
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  #12  
Old 05-20-2015, 08:20 AM
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rmartingt rmartingt is online now
 
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Quote:
Originally Posted by dmaib View Post
. Being able to have enough fuel for an alternate in IFR, being able to fuel round trip, and being able to "tanker" a bit when I come across good fuel prices are my reasons.
That's exactly why I'm putting extra fuel on my -7 (smaller version of "Tuckey tanks"), especially since I plan to run mogas when possible. I think sometimes people forget that you (a) don't have to use it all in one nonstop flight, and (b) don't have to fill all the tanks all the way all the time.
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  #13  
Old 05-20-2015, 08:24 AM
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Mel Mel is offline
 
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Quote:
Originally Posted by dmaib View Post
I don't remember just how much weight they added,
The ER tanks on my -6 added 13.5 lbs. including the transfer pumps.
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  #14  
Old 05-20-2015, 06:54 PM
flyinlee flyinlee is offline
 
Join Date: Feb 2006
Posts: 70
Default ER tanks

I had them installed in my 6A ( no pump needed) and am very glad I did. I don't always use them but have tapped them in cross country trip that are too close to call for refill. I don't stop. Well worth it.
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  #15  
Old 05-20-2015, 08:27 PM
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N941WR N941WR is online now
 
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I'mSomeone asked how to plumb the fuel lines. I looked seriously at adding ER tanks to my -9 and the following are the different ways I have found people have set them up their ER tanks.

1. Pilot activated electric transfer pumps to move fuel to the main tanks.
2. Optical sensors in both main and ER tanks to automatically tun on and off transfer pumps. No pilot action required.
3. Each side's main and ER tanks are plumbed together and share a common vent. The idea being that as fuel is pulled from the main tank, fuel is siphoned from the ER tank.
4. Install a five way Andair valve and plumb a line to each ER tank. Left Outboard, Left Inboard, Right Inboard, Right Outboard, and Off.

I didn't install the Extended Range tanks I was looking at. So, I don't have a recommendation.
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Last edited by N941WR : 05-21-2015 at 04:22 AM.
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  #16  
Old 05-21-2015, 08:12 AM
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TroyBranch TroyBranch is offline
 
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Default Love mine

Mine have been trouble free as well for close to 700hrs. I love having the option to fill with cheaper fuel. I really like the extra fuel for giving more options to deviate weather. Two long legs with one fuel stop is a perfect day of flying compared to making 2 or 3 stops. The tanks are a perfect speed mod for saving time on an XC trips. The plane is also noticeably more stable in roll while in turbulence with the tanks full.

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Last edited by TroyBranch : 05-21-2015 at 08:26 AM.
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  #17  
Old 05-21-2015, 01:01 PM
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beechrv9a beechrv9a is offline
 
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I am currently installing these on my 9A. A tight fit, but manageable. My question is about the vent. Did you vent out the bottom of the wing? Couldn't you just curl the tubing as recommended on top of the wing tip tank, then vent inside the wing tip? Seems there must be enough air swirling inside the fiberglass tip to vent. Since there is an electric pump, ram air pressure is not really required. Any thoughts?
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  #18  
Old 05-21-2015, 01:10 PM
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pierre smith pierre smith is offline
 
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Jim, fuel expands a lot as it is warmed. If you're full and the day gets hotter with the airplane sitting there, any fuel that spills out of the vents will run toward the cockpit....dangerous.

Best,
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  #19  
Old 05-21-2015, 01:13 PM
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rv6rick rv6rick is offline
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I've only installed 3 or 4 sets of long range tanks and they have all been in RV10's. I'd stick to the plans on the vent because:
A- a little positive pressure is a good thing
B- easy to inspect and clean out bugs and bees (of course you'll have a screen)
C- when you fill the tank and park it in the sun you don't want any fuel or vapors INSIDE of your wing

Just my thoughts.


Quote:
Originally Posted by beechrv9a View Post
I am currently installing these on my 9A. A tight fit, but manageable. My question is about the vent. Did you vent out the bottom of the wing? Couldn't you just curl the tubing as recommended on top of the wing tip tank, then vent inside the wing tip? Seems there must be enough air swirling inside the fiberglass tip to vent. Since there is an electric pump, ram air pressure is not really required. Any thoughts?
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  #20  
Old 05-25-2015, 10:05 AM
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beechrv9a beechrv9a is offline
 
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Thanks for input. I will stick to plans
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