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Cub Fuel Tank from project

 
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tkreiner



Joined: 06 Aug 2009
Posts: 189
Location: Spring, TX

PostPosted: Fri Feb 06, 2015 1:02 pm    Post subject: Cub Fuel Tank from project Reply with quote

A SE TX project plane is available, and for the right $$$, I might be interested in getting it. Project has ribs, two sets of spars, steel tube fuse, and a box full of extra tubing, etc. The tank is a new, unused J3 Cub tank, and it still has stickers on it...

So, the question is: is anyone using a J3 Cub fuel tank in their Piet? If so, please let me know your experience, i.e., not enough fuel, just right, etc., also, let me know whether it's a drop in, or requires a lot of work to use.

Since I have a fuse, the steel tube fuse might become available.

Thanks,


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PostPosted: Fri Feb 06, 2015 1:55 pm    Post subject: Cub Fuel Tank from project Reply with quote

I'm using a J3 tank. It was an easy fit amd 12 gallons is more than i need

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Quote:
On Feb 6, 2015, at 4:02 PM, tkreiner <tkreiner(at)gmail.com> wrote:



A SE TX project plane is available, and for the right $$$, I might be interested in getting it. Project has ribs, two sets of spars, steel tube fuse, and a box full of extra tubing, etc. The tank is a new, unused J3 Cub tank, and it still has stickers on it...

So, the question is: is anyone using a J3 Cub fuel tank in their Piet? If so, please let me know your experience, i.e., not enough fuel, just right, etc., also, let me know whether it's a drop in, or requires a lot of work to use.

Since I have a fuse, the steel tube fuse might become available.

Thanks,

--------
Tom Kreiner




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Ray Krause



Joined: 09 Oct 2013
Posts: 453

PostPosted: Fri Feb 06, 2015 7:07 pm    Post subject: Cub Fuel Tank from project Reply with quote

I'm using one in the Sky Scout, but had to cut a triangle piece off the bottom rear area, now it holds only 10 gals. Easy installation.

Sent from my iPad

Quote:
On Feb 6, 2015, at 1:55 PM, Ben Charvet <bencharvet(at)gmail.com> wrote:



I'm using a J3 tank. It was an easy fit amd 12 gallons is more than i need

Sent from my iPhone

> On Feb 6, 2015, at 4:02 PM, tkreiner <tkreiner(at)gmail.com> wrote:
>
>
>
> A SE TX project plane is available, and for the right $$$, I might be interested in getting it. Project has ribs, two sets of spars, steel tube fuse, and a box full of extra tubing, etc. The tank is a new, unused J3 Cub tank, and it still has stickers on it...
>
> So, the question is: is anyone using a J3 Cub fuel tank in their Piet? If so, please let me know your experience, i.e., not enough fuel, just right, etc., also, let me know whether it's a drop in, or requires a lot of work to use.
>
> Since I have a fuse, the steel tube fuse might become available.
>
> Thanks,
>
> --------
> Tom Kreiner
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=438121#438121
>
>
>
>
>
>
>
>
>
>


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PostPosted: Sat Feb 07, 2015 4:26 am    Post subject: Cub Fuel Tank from project Reply with quote

Tom it fits well. I'm putting a sump in mine so it hopefully will allow draining in the three point attitude...

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Jack Textor

Quote:
On Feb 6, 2015, at 3:02 PM, "tkreiner" <tkreiner(at)gmail.com> wrote:



A SE TX project plane is available, and for the right $$$, I might be interested in getting it. Project has ribs, two sets of spars, steel tube fuse, and a box full of extra tubing, etc. The tank is a new, unused J3 Cub tank, and it still has stickers on it...

So, the question is: is anyone using a J3 Cub fuel tank in their Piet? If so, please let me know your experience, i.e., not enough fuel, just right, etc., also, let me know whether it's a drop in, or requires a lot of work to use.

Since I have a fuse, the steel tube fuse might become available.

Thanks,

--------
Tom Kreiner




Read this topic online here:

http://forums.matronics.com/viewtopic.php?p=438121#438121












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TriScout



Joined: 20 Apr 2009
Posts: 178

PostPosted: Sat Feb 07, 2015 8:07 am    Post subject: Re: Cub Fuel Tank from project Reply with quote

That would be a "penzon" …. penzon the engine you plan on installing. I did not build my GN-1, but had been flying it for 4 yrs now to BBQ's, Bfast, etc, and I'm liking the 12 gal Cub tank w/the A65. Just enough to stretch out and meet people at small aerodromes..

I entertained the thought/logistics of adding a temporary 30 gallon tank to the front seat and try to non-stop from Dallas-Brodhead, but not sure how I would add oil while inflight…just a daydream I suppose..

ler


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taildrags



Joined: 29 Dec 2009
Posts: 1682
Location: Medford, OR

PostPosted: Sun Feb 08, 2015 5:48 pm    Post subject: Re: Cub Fuel Tank from project Reply with quote

Tom; have you decided about purchasing that project? If you acquire the project and want to sell the steel tube fuselage, as they say in the upper midwest, "I'll buy it off ya" and have a friend who can pick it up.

Regarding fuel capacity, Scout carries 16 gallons in the nose and has a Stromberg carb, so the geometry -not the tank capacity- determines the fuel flow and endurance. I have found, by experience, that the bottom 3 or 4 gallons are unusable in the 3-point attitude and are either "cruise reserve" for an emergency in level flight only, or are nose ballast. My airplane has a cruise range of about 2 hours, maybe 2-1/2, but that's about as long as I want to sit in the airplane at a single stretch anyway and I can generally plan on finding an airport or strip within 100-120 miles of my fueling point in most areas. Nevada and the California desert are exceptions, and headwinds change everything. The point is, if your Cub tank holds 12 gallons, you may want to do a fuel flow test the way Tony Bingelis describes it, and do your flight planning accordingly.


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PostPosted: Sun Feb 08, 2015 8:38 pm    Post subject: Cub Fuel Tank from project Reply with quote

Oscar, thanks for the heads up on unusable fuel. I poked around the Piper cub sites and their general consensus is a 12 gallon tank with 10 useable.
Since my solution to putting two planes in a one plane hangar involves "kneeling" my Piet on it's nose, I am considering turning the nose tank around. Currently the gas cap is in the front 1/3. By turning it around, the cap would be in the rear 1/3rd.
It would mean slightly less fuel in a 3 point attitude but I could leave more in it before putting it in storage. Just a weekend project.
But it will not  happen until I fly the thing. That is not required for flight. If I have to drain fuel before I put it up, so be it.
Blue Skies,
Steve D.
On Sun, Feb 8, 2015 at 7:48 PM, taildrags <taildrags(at)hotmail.com (taildrags(at)hotmail.com)> wrote:
Quote:
--> Pietenpol-List message posted by: "taildrags" <taildrags(at)hotmail.com (taildrags(at)hotmail.com)>

Tom; have you decided about purchasing that project?  If you acquire the project and want to sell the steel tube fuselage, as they say in the upper midwest, "I'll buy it off ya" and have a friend who can pick it up.

Regarding fuel capacity, Scout carries 16 gallons in the nose and has a Stromberg carb, so the geometry -not the tank capacity- determines the fuel flow and endurance.  I have found, by experience, that the bottom 3 or 4 gallons are unusable in the 3-point attitude and are either "cruise reserve" for an emergency in level flight only, or are nose ballast.  My airplane has a cruise range of about 2 hours, maybe 2-1/2, but that's about as long as I want to sit in the airplane at a single stretch anyway and I can generally plan on finding an airport or strip within 100-120 miles of my fueling point in most areas.  Nevada and the California desert are exceptions, and headwinds change everything. The point is, if your Cub tank holds 12 gallons, you may want to do a fuel flow test the way Tony Bingelis describes it, and do your flight planning accordingly.

--------
Oscar Zuniga
Medford, OR
Air Camper NX41CC "Scout"
A75 power




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taildrags



Joined: 29 Dec 2009
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PostPosted: Mon Feb 09, 2015 9:39 pm    Post subject: Re: Cub Fuel Tank from project Reply with quote

Steve;

I'm glad to see that you've put things in proper perspective by recognizing that your fuel situation may require some adjustment, but you may be able to put off the adjustment until after you've begun test flights. Just don't get complacent... recognize the fuel system's possible limitations and respect those. Keep the fuel topped off or at least within the upper 3/4 of the tank until you're comfortable flying it in all regimes. Go through any list of experimental aircraft accidents and incidents and fuel problems will be in the top couple of causes. Read and heed.

What I would probably do after that is fly the airplane in the pattern on a nice day, practicing takeoffs and landings to improve my skill and comfort at the controls as the fuel level got down into the bottom part of the tank. The rest is just my personal testing regime and is based on my comfort level with my plane, at my home field, under controlled conditions. There is no need to fly an actual dead-stick landing when you can simulate flying out of the very last of the tank by putting the tailwheel in a ditch and elevating the nose as you run the engine at a fast idle till it's starved of fuel and sputters to a halt. At that point you can determine how much of your fuel is actually unusable and how much is marginal, and go from there.


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