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Old 06-20-2010, 06:43 PM   #1
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Fuel Tank sizes ??

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I just installed a new DL 55 Friday night.
Did 4 flights Saturday. Everything is running great.
Currently I have a 20 oz tank.

Do I need a tank that big? I have been landing with 1/2 a tank or just a bit less.
If I were to go to a 16 oz tank, what kind of flight time can i expect ?
I generally don't fly longer than 10 minutes. Usually a mix of IMAC and 3d type stuff.
Let Me Think About It

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Old 06-20-2010, 08:48 PM   #2
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Re: Fuel Tank sizes ??

That sounds like an ounce a minute. If you went to a smaller tank, could you squeeze in a smoke tank? A 16oz tank will also make for a lighter plane over all, or only fill the 20oz 3/4 full. If you forget to start the clock, you may be thankful you have that extra fuel. Hey, but what the hell do I know.
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Old 06-20-2010, 09:21 PM   #3
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Re: Fuel Tank sizes ??

160z is lots for a 50cc !!!

I have a 20oz on my DA50 / EF 88" Yak and it's too big aswell - I was just thinking of doing the same as you and dropping to 16oz. That's 1/4 lb less weight to haul around!


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Old 06-21-2010, 06:11 AM   #4
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Re: Fuel Tank sizes ??

Cool ,Thanks guys.
Going to pick up 16 oz today.

The biggest reason i want to go to a smaller tank is the length of the 20 is awkward in the Great Planes Giant Reactor.

Each wing panel is held in place with 2 bolts.
The rear bolts are behind the wing tube and access is not a problem.
The forward bolts are partially blocked by the front of the 20 oz tank which is backed up against the wing tube.

This plane has a narrow fuselage and any type of tool does not fit between the bolt and the tank. I have a hard time to get my fingers in there and cannot tighten down the 2 forward bolts. I have to check them after every flight because they get loose.
With the shorter tank, I can at least get an allen key or socket in there to snug down those 2 bolts.

That and 20 oz just seems to take forever to fill during that first fill of the day. Crank and crank and crank

Trevor, I can't imagine filling a 1.5 liter or 2 liter tank in one of your big birds....

Cheers and thanks
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Brad Egan MAAC 48597

Last edited by Bdegan; 06-21-2010 at 06:14 AM.
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Old 06-21-2010, 07:38 AM   #5
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Re: Fuel Tank sizes ??

If you want to spare the exchange to a smaller tank, why not use a hex head bolt and a ratcheting wrench? Those are VERY thin - generally about 1/4" or so.

You'd then have more cool stuff to lug around in your field box.

As for taking forever to fill, you can solve that problem with the Dave Brown Six Shooter pump or an electric pump, which again means more stuff to lug around. But then, what's another battery?

Yeah, yeah, I know - a battery detester advocating a battery of all things. What's this world coming too?
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Old 06-24-2010, 07:03 AM   #6
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Re: Fuel Tank sizes ??

I was running a 16oz tank with my DLE 55 and found it a bit tight for flight times. Again new engine on breakin and perhaps my throttle management wasn't so good initially. I had my timer set for 10 mins, had to do 2 go-arounds due to gusty winds and bad technique and ended up deadstick.....so I bumped my timer down to 8 mins.....since then I'm lighter on the throttle (practicing IMAC) and I upgraded to a 24oz tank.....now 12 mins timer and TONS of reserve.

Again each to their own, yes it's heavier for my plane but frankly I'm not good enoegh to really see the difference and I'm not doing 3D with this plane.

Cheers, Eric
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