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General control line discussion => Open Forum => Topic started by: dave siegler on December 14, 2014, 08:05:27 AM
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I was given this old well build, but crashed a few times Nobler. You can see pictures of it in the link below. While it needs refinishing, it was suggested to fly it first before investing the time and money. If it is flies poorly, hunts it may not be worth the time. Just purchased a quart of clear, 2 quarts of color, thinner and spent $90....... Could get an arf for almost that.
The project has sat for a year, and now is up.
I pressure tested the tank and it does not pass......... HB~>
The tank is built in. What is the easiest way to get it out? I did not build it and do not have plans so I don't know the structure.
http://stunthanger.com/smf/index.php/topic,33122.0.html (http://stunthanger.com/smf/index.php/topic,33122.0.html)
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The tank in a Nobler is accessible from the bottom .... I have had 3 Noblers ... 2 built from kits and 1 ARF ... all flew well. Neal Beekman most have a dozen Noblers and they all flew well.
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Depending on how the tank is installed and the glue you may have a job on your hands. Yes the tanks should be visible from the bottom if built according to plans. If you do a search there should be plans available for viewing. It will take patience and a few words but it should come out. May have to cut the top off also. Noblers are known for being weak at the leading and trailing edge of the wing in the fuselage joint. If done right it will be a terrific flying plane.
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this is a view of the bottom were do I start?
cut out the plywood on angle section?
(http://img-2013.tapatalk.com/d/13/10/23/ryzugu8e.jpg)
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That'd be the first thing I'd do. That way you can see what you're up against (no pun intended) ::)
Actually I'd remove the engine first, then.....
Good luck, Jerry
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The Here are some links to plans. The Gieseke Nobler is an alteration of the "original" Nobler. (this is based on the other thread showing the orange Nobler)
Free login required for Hip Pocket, but it is the only place I found this. Maybe someone else has better google-fu.
http://www.hippocketaeronautics.com/hpa_plans/details.php?image_id=3856&mode=search
Here are Outerzone plans to the Nobler
54 inch span
http://outerzone.co.uk/plan_details.asp?ID=377
50 inch span
http://outerzone.co.uk/plan_details.asp?ID=525
I can't help you much from experience though. I have sliced open fuselages though, and a sharp knife and straight edge seem to be helpful after finding the correct joint. In my limited experience the fuse can be reassembled if it is opened with adequate care. My limited experience had all the glue joints part with minimal damage to the wood. I think fuel soaking had something to do with this. (clean out the oil with alcohol+corn startch, repeated till adequate)
Phil
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I got it out. Had to remove the first former and the angle one as well the tank compartment has minimal fuel damage.
The fill line went up and over the motor mount so that was a bear to get out. I have some woodwork to do.
The fill line had a hole in it. The tank does not leak, but is kind of nasty , so I think it best to replace it.
a Brodak tank like this one should fit?
http://brodak.com/a-t-f-wide-wedge-uniflow-fuel-tank-4-oz.html (http://brodak.com/a-t-f-wide-wedge-uniflow-fuel-tank-4-oz.html)
it looks a little too wide.
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Suggest you buy RSM tanks ... I had bad experience with Brodaks ...
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The tank not being big enough was the trouble with my G.Nobler , Converted it to Electric . Now it flies the full pattern.
:)
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...Hey Dave, Medium Wedge are 1 3/4" Wide. SKU#BH-489 is 4oz. Uniflo. All tubes come out the front. Cheers, John
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Suggest you buy RSM tanks ... I had bad experience with Brodaks ...
I have had the inboard seam split on both a new Brodak and a new RSM tank. Pressure test them all.
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Look at the listing of tanks as the 2 inch wide tank will be too wide unless you do like I do with a hammer and make adjustments. Can't tell which engine you have but a 4 to 4 .5 ounce tank should be plenty. Also pressure test all tanks as I have some that leaked at the seam. But, then again I do not use a tank as it comes from either John or Eric. I pull back plates and check for uni-flo setting.
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The engine is a os Max 35 I. It has the venturi stopped stopped down with a broken prop. It is very clean. I have no experience with that motor. Hope 4oz is enough.
The tank is 4" long and about 1.8 inches wide. Think that is 4 oz. conventional venting mid top and bottom. I will reuse it on a profile.
It looks like the brodak medium wedge are about 1.75 and should fit. I could build a tank, but think I will just order one.
Yes I pressure test them can check the uni-flow line with a wire.
4oz tank on order thanks all.
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The early OS motors are supposed to be a torque motor not a high RPM motor and need to be propped accordingly. I have never run one.