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General control line discussion => Open Forum => Topic started by: Dan Berry on April 21, 2018, 07:52:21 PM

Title: The new ride
Post by: Dan Berry on April 21, 2018, 07:52:21 PM
This is how the open-cockpit Vector came out.
38.5 oz without tank or tip weight.
Title: Re: The new ride
Post by: James Holford on April 21, 2018, 07:54:13 PM
This is how the open-cockpit Vector came out.
38.5 oz without tank or tip weight.
Oh Dan that is wicked cool!!!!!! Cant weight to see it in 2 weeks!!!

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Title: Re: The new ride
Post by: kenneth cook on April 21, 2018, 08:27:26 PM
              Dan, that isn't a freeflight. It looks pretty cool, good luck with it. Ken
Title: Re: The new ride
Post by: Dan Berry on April 21, 2018, 08:57:04 PM
              Dan, that isn't a freeflight. It looks pretty cool, good luck with it. Ken

Sometimes my ukie stuff engages in Free Flight. Sometimes I save'em.......
Title: Re: The new ride
Post by: Joe Bowman on April 21, 2018, 08:59:19 PM
Very nice Dan.
Title: Re: The new ride
Post by: Dan Berry on April 21, 2018, 09:00:14 PM
I have just encountered a problem.
I intend to use a 6oz round Sullivan tank.
The tank is about 1/8 larger diameter than the fuselage width. I don't think that using a big hammer will make it fit.

Can I use a heat gun or bake the tank in an oven to soften it a bit?
More to the point--- will I have any success with squeezing the tank that way?

Pen bladders on FF planes are sure easier to make work.
Title: Re: The new ride
Post by: Peter Grabenstein on April 21, 2018, 10:08:59 PM
I believe...this tank will fit much better.
John has many sizes to match your tank Needs.

http://brodak.com/wide-wedge-magnum-uniflow-fuel-tank-5-oz.html

My Vector OS LA 46 Combo got one and works just "GREAT".

 H^^ Peter
Title: Re: The new ride
Post by: Dan Berry on April 21, 2018, 10:18:26 PM
I believe...this tank will fit much better.
John has many sizes to match your tank Needs.

http://brodak.com/wide-wedge-magnum-uniflow-fuel-tank-5-oz.html

My Vector OS LA 46 Combo got one and works just "GREAT".

 H^^ Peter

But.... I don't have one of those. If it's a true 2" wide it wouldn't go. I'm a bit shy of 2" inside width on the fuselage.

I have a 4oz slant front plastic that would fit but I worry about enough fuel with 4oz. I have a 5oz metal that is plumber for a profile but I have no desire to replumb it.
Title: Re: The new ride
Post by: Dave Hull on April 21, 2018, 11:48:27 PM
I have never tried heating and reforming a standard Sullivan tank. I'm not liking the odds on that one--but if you are at the "nothing left to lose" stage, let us know how it turns out. These are made from polyethylene which is a thermoplastic resin, so it should be technically feasible. I just worry about getting a lot of distortion from uneven heating. If I was going to try it, I would put the tank between two board in a vise and try to heat and squeeze to try to keep it straight--kind of stress relieving as you go. Maybe.

On the other hand, they come right out and tell you that you can use a heat gun on the flex tank:

"Flextanks are molded from a special flexible, translucent polymer blend making them easier to fit into tight places and are very durable. They can be reshaped with a heat gun if desired. Flextanks are for glow fuel only."

http://sullivanproducts.com/?s=flex+tank

The 4 oz. flex tank is nominally 2" wide, including the vent bump, in the orientation that we would use. It will squeeze down by an 1/8" pretty easily. (I have one in my hand right now.)
they have a 6 oz. version of same. My Vector will take a 4-1/2" long tank, possibly longer, so you should be able to fit a 6 oz tank. The dimensions in their table do not include the length of the cap or lines. I just pushed the 4 oz. tank into the plane--I didn't bother with a heat gun.

Good luck,

Dave
Title: Re: The new ride
Post by: Peter Grabenstein on April 22, 2018, 12:10:16 AM
Hi Dan,

just give you my ARF Vector Picture.
The innerwith of tankbay measures exactly 53mm .
2 inches = 25,4mm x 2= 50,8mm which gives you a inner gap of 2,2mm between sidewalls.
The 2inch wide metal tank should fit just perfect.

cheers
Peter  H^^
GER-1223
Title: Re: The new ride
Post by: FLOYD CARTER on April 22, 2018, 10:50:19 AM
What sort of engine requires 6 ounces for the pattern?  A Vector normally runs with a  .40 or a .46 glo.
Title: Re: The new ride
Post by: Dan Berry on April 22, 2018, 11:04:55 AM
What sort of engine requires 6 ounces for the pattern?  A Vector normally runs with a  .40 or a .46 glo.

It's an LA46. I never figured that 6oz was needed but that 4oz might not be quite enough.

I'm looking at a 4oz slant front Sullivan tank.
Title: Re: The new ride
Post by: peabody on April 22, 2018, 11:48:56 AM
4 ounces of 10% runs me out of fuel in the clover.....and did for Bill Rich as well....he switched to 5%...I have some coming.
My new Vector ARF/LA 46 has a 5 oz. tank.
62' lines and that fancy Thunder Tiger prop.
Title: Re: The new ride
Post by: Jason Cunningham on April 22, 2018, 02:09:39 PM
 LL~ Good job Dan.. Hope its coming to the El Dorado contest !!
Title: Re: The new ride
Post by: bob whitney on April 22, 2018, 02:19:12 PM
Dan, I have cut a 1/8th v in the inside of the outside fuse side .just enough to push the tank into
Title: Re: The new ride
Post by: Dan Berry on April 22, 2018, 06:06:43 PM
Well, the 4oz slant front tank isn't gonna work. For several reasons.
There is a plan in place.........
Title: Re: The new ride
Post by: Dan Berry on April 23, 2018, 07:19:36 PM
Well, the heat gun seems to have solved the problem.
I have squeezed (squoze) the 6oz tank so that it will fit.
RTF the plane will be under 41oz.
Title: Re: The new ride
Post by: James Holford on April 23, 2018, 10:41:20 PM
Well, the heat gun seems to have solved the problem.
I have squeezed (squoze) the 6oz tank so that it will fit.
RTF the plane will be under 41oz.
Thats what im talkin about!!!


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