Badboy V2 ARTF


Saturday afternoon at the field 10.05.08

   
Wing span: 53" / 1340mm
Length :46.73" / 1187mm
Weight : approx 4 Lb
Wing Area: 805 sq.in (5196 sq.cm)
Wing Loading: 11.44-13oz/ft
Motor:
Servos: 4 standard servos 1 micro servo for throttle

The kit   
  Wings were neatly packed in a strong box inside the larger box so the kit is safely shipped.  All parts are cut accurately by laser and CNC machines. The covering is nicely applied but mine needed tightening with an iron in places. All the hardware you need to build the plane is included in this Almost Ready to Fly (ARF) airplane. The supplied hardware is top quality heavy duty hardware that you don’t see in kits on this category with exception to the fuel tube which I replaced. The Bad Boy V-2 is a large 40 size profile plane, it has removable wings joined with carbon fiber wing tube. The ARF includes carbon fiber control horns for all the surfaces.  Hinge slots for all surfaces have been pre-cut.  The fuselage construction conceals servo wiring exiting at the wing root point. Precision Aerobatics have taken the time and effort to produce an excellent ARF. 

The build  
The manual demonstrate clearly each step with many photos. Construction began on the wings.  The ailerons were hinged with cyanoacrylate (CA) hinges located in the pre cut slots. A couple of drops of CA glue was added to each hinge on both sides. Next came installation of the carbon fiber control horns in the ailerons. The control horns have the carbon fiber awesome woven texture and are made by CNC.  The installation consisted of milling a small slot in the necessary place and epoxing the horn in place. The ARF comes with extremely strong and lightweight carbon fiber push rods and the necessary items (Extra large metal clevis and HD metal coupler) to make up your HD push rods.  I measured the length from the servo output arm and surface control horn to get the necessary length of my push rods.  The carbon fiber rods and the metal clevises were put together and hooked up to the servo and surface. 
The wings were attached to the main fuse with the carbon fiber wing tube and three bolts and nuts pinched up, at this point a check has to be made as to how the wing sits on the fuselage if a gap is evident then it is necessary to shim the root with the provided balsa shims glued and sanded to suit. Next came the installation of the rudder and elevator servos, again, the servos are located in the tail end of the fuse and the servo wires pulled through the fuse.  Threading the servo leads through the fuse body was a piece of cake with the preinstalled draw strings. Once that was done, the Vertical stab was installed and checked to make sure it was perpendicular to the wings. After installation of vertical stab came installation of the horizontal stab.  I then hinged the rudder and elevator. Installing the carbon fiber horns in the surfaces was exactly like the ones on the ailerons and the construction of the control rods were the same as the ailerons.  The CNC aluminium landing gear was used, I’ve been advised that Precision Aerobatics now offers carbon fiber landing gear and CF wheel pants as well as fiberglass. The CF tail wheel assembly is also easily installed (boy they like carbon…) You Just bend the wire to the necessary length and bolt it on the bottom of the fuse.  After mounting the wheels, I decided not to install the wheel pants on the plane. 

Carbon fiber  
Precision Aerobatics say about this kit (as well as some other kits of their design like the Katana mini 3D electric), which I also have and will review “Carbon fiber everywhere!” I couldn’t agree more: Other than the wing tube and wing sleeves, the leading edge of the wing is also made of Carbon Fiber. You get Carbon fiber CNC machined control horns and CF tail assembly mounting plate, CF pushrods and CF servo arms are an upgrade option and are not include in the kit. The CF arms will allow for maximum throw.  More than 45 degrees.  getting 50 degrees of throw on the ailerons and elevator is possible, but I set mine to 45 degrees.  These arms will give you all the 3D throw you need and can be tamed down for pattern flying.

Radio set up 
JR 9X2 radio was used for this ARF.  Programming was accomplished in a short time due to my familiarity of with this radio.  15 degrees of throw for the ailerons and elevator for low rate was programmed in the radio and 45 degrees for high rate ailerons and elevator was programmed.  For the rudder I programmed in as much throw as I could get and cut that in half for low rates.  Next came Expo.  40% expo on everything for low rates except the rudder was added.  I put in 50% expo on low rate rudder and 70% expo on high rate rudder. 

Flying.

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The Bad Boy is superb to fly and will do all the tricks you can think of and more, it locks into knife edge without a problem and knife edge loops should be easily achieved with the rudder throw available (not tried as yet !!). This aircraft will fly at a very slow speed and with a slight breeze can be brought to a hover with little power and a tad of elevator, inverted flight does not need any elevator input and Bad Boys has great prop-hanging ability.
There was no need to trim on the maiden flight my CG was set at the recommended place. In Knife edge flight, there is minimal coupling

 Using the supplied tank I get about 12 – 15 mins depending on what I have been up to, tee hee hee!!!. This is one tidy flying profile that will do it all the only danger is it gives great confidence which may, nay will, lead to tears and many pieces, the Bad Boy V2 will make you look like a pro even on your first flight.

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The Badboy V2 ARF.is from Precision Aerobatics an Australian company. And is available from Als Hobbies at a cost of £89.99 

The wing has very deep wing section which gives the great slow handling properties. The model uses 4 standard size JR 591 servos for the controls and micro E-sky servo for the throttle.

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Power comes from an Jen 51 motor with a Super quiet silencer from Just Engines turning a 13 X 4 APC propeller which should give excellent prop hanging performance.

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The Badboy V2 has a two part wing, which allows the model to pack down into a small size. He says it's a little fiddly to assembly but with a large enough vehicle it could be done in the work shop. Once assembled it forms a very rigid model. There is a very comprehensive article on construction on their web site that's well worth a look.

Very nice to land, almost floating in !!

 

Mark

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Gloucester Model Flying Club