SV-11 Randy Smith from Broadak for my friend.

[Ruslan Kurenkov]

Hello
I just received from the courier my long-awaited box that I ordered a month ago.
Inside the box was a wonderful aerobatic plane that I ordered for Brodak for my little friend, junior, he is now 12 years old, who crashed his only plane 2 months ago.
I was very glad that the box was not damaged after traveling by ship across the ocean.
All parts inside the box were intact and very well packed and attached to the walls of the box.
I bought the Impact Paul Walker aircraft 6 years ago, also produced by Brodak.
I had something to compare.
Sv-11 I liked a lot more. Workmanship is much higher. Sometimes when inspecting the details it seemed to me that this particular copy was built by Randy Smith himself in secret from John Brodak. All the details fit so well, beautifully and accurately. This is especially noticeable on how the fuselage hood is assembled and how the stabilizer is assembled. For the money - it's just a masterpiece. For my friend's child, it will be a great gift. I myself will collect the plane and glue all the details on a flat table. After which I will cover with a film or paint. Then I will install the engine and solder the fuel tank. Tomorrow I will weigh all the details, the difference in weight of the wings and the total weight of the airframe before painting and covering.
On this plane, I will install the Stalker 66 engine with rear exhaust. Just like I installed on my Impact.
I did not find in the instructions for assembling information about the place where the model's center of gravity with a filled tank should be, before take-off. Motor Stalker 66 is very light, with a silencer weighing 385 grams (13.6 oz), and I am afraid that there should be a back centering.
I think the designer of this wonderful aircraft, Randy Smith, will give me the necessary recommendations for centering the aircraft and the amount of weight to be installed in the container on the outer wing.
Regards
Ruslan

[M. Scott]

If you like that one, you will love the Vector, IC or Electric.
Great workmanship, great design.
Mike

[John McFayden]

According to the Brodak website the CG is 3.25" back from leading edge.
Noted on the ARF kit description.

http://brodak.com/control-line-kits/brodak/brodak-arf-series/arf-sv11.html

[Perry Rose]

I've never seen a c/g listed for a full fuel tank.

[TDM]

You always balance empty.

[pmackenzie]

How did you get one with no covering?

IC version is available as an ARC ( I have one )

[Ruslan Kurenkov]

Thank you friends for the answers.
I also really like the Vector.
I did not know that there is an electro option. Thank.
I will definitely check the center of gravity at a distance of 3.5 inches from the front edge of the wing. I would like to know the alignment that should be in flight (the amount and weight of fuel are different for everyone).
I actually ordered it without a trim, so I got it. Junior himself will be wrapping his plane with a cover with a film for a covering.
Today, Junior and his father were very pleased when they received their new aircraft.
Regards
Ruslan

[Ruslan Kurenkov]

Hello
Today, our children began assembling their favorite aircraft under the strict guidance of their fathers. My son is the smallest, he is only 7, the head of the model aircraft laboratory explains how to properly hold sandpaper in his hands and how to sand properly. So far, nothing happens. His older friend Denis, he is 11 years old, today installed a control system at the SV-11.
Regards
Ruslan

[Air Ministry .]

he is only 7, the head of the model aircraft laboratory explains how to properly hold sandpaper in his hands and how to sand properly. So far, nothing happens.

Give Him a piece of 40 Wt paper , and somethings gunna happen , real fast .

Better keep him well away from the aeroplane with it , though . a bit of practise on some offcuts might not be amiss .

The coarse paper will let him see whats happening , and dial him in .

[Ruslan Kurenkov]

Give Him a piece of 40 Wt paper , and somethings gunna happen , real fast .

Better keep him well away from the aeroplane with it , though . a bit of practise on some offcuts might not be amiss .

The coarse paper will let him see whats happening , and dial him in .

Thanks Matt for an interesting tip.
I will definitely give my son a try a very large skin as you say. Let him try. So it will really be visible at least some result. Although the plane will be sorry. An old plane that hangs on the wall for a very long time is suitable for tests.
Regards
Ruslan

[TDM]

Ruslan some guise have issues with the symmetric response on the plane. You might want to bias the bellcrank neutral point to get equal throw up and down. I love to see boys building stuff. More pictures please 

[Ruslan Kurenkov]

Ruslan some guise have issues with the symmetric response on the plane. You might want to bias the bellcrank neutral point to get equal throw up and down. I love to see boys building stuff. More pictures please 

Thank TDM
I also like it very much when our children and children of our friends build airplanes themselves, learn to cut slats, glue, sand, learn how to make an airplane, begin to think like a designer, and not sit on the couch and watch cartoons all day and play computer games.
With management everything is fine. In previous photos, the control was not properly connected, only for the initial assembly. To check the alignment.
Today, after installing the Stalker 66 engine, we determined that we have a little rear alignment with this motor. I had to facilitate the rudder of the tail. He was from a single piece of balsa and weighed 22 grams. After Denis made his dial and lightened, his weight dropped to 9 grams, more than doubled.
Regards
Ruslan

[TDM]

Love it.
Thanks for the pictures.
Actually the weight savings are not actually only 13g. For every gram off the tail 3-4g come off the nose too. So you actually knocked out some 40+g overall.
He did a good job there.

[Avaiojet]

Love it.
Thanks for the pictures.
Actually the weight savings are not actually only 13g. For every gram off the tail 3-4g come off the nose too. So you actually knocked out some 40+g overall.
He did a good job there.

Nice "holes" also. Thought out and well placed.

Tonto says, "Holes good, reduce weight."

[Ruslan Kurenkov]

Today, the young designer pasted his fuel tank with an old, broken model, a thin balsa and glued aluminum foil on top of the balsa to reflect the heat from the engine muffler.
Today I was engaged in cutting on a milling machine using a thin disc milling rack rack chassis. Chassis plate thickness 3mm. Rack weight decreased by 20 grams. Durability has not decreased.

[Air Ministry .]

a thin balsa and glued aluminum foil on top of the balsa to reflect the heat from the engine muffler.

A cunning dodge .

[Ruslan Kurenkov]

Hello
After the New Year holidays, Denis obtyanul plane white self-adhesive film, after which the wing and stabilizer were glued, he also installed and adjusted the control system of flaps and stabilizer wheels. Recently the tail unit (keel) was glued and the pilot's cabin was painted black. Soon we will install the fuel tank and the Stalker 66 engine with a conventional silencer.
Regards,Ruslan

[Steve Thompson]

"Model Aircraft Laboratory"  an excellent term.  There are so many useful things that can be learned.  From something simple like sanding (which isn't really simple) to math, physics, workmanship, patience, etc.

Ruslan, I really like your posts.  They are a hopeful, wonderful look at what is happening from across the world.