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Congratulations on y our purchase of Precision Aerobatics
B e sure y ou hav e rea d and understood this entire manual bef ore y ou a ssembl e thi s model
Do not overlook the warnings and instructions enclosed herewith or those provided by other manufacturers, and the official
AMA (Academy of Model Aeronautics) Safety Code (see at the end of this manual). They were designed to assist you in
preventing damage or injury.
The instruct ions below are our suggest ions only on how to assemble this model. There are other ways and methods to do
so.
Precision Aerobatics has no control over the final assembly, the materials and accessories you use when assembling this
kit or the manner in which the assembled model and the installed radio system and electronic parts, are used and
maintained. Thus, no liabili ty is ass umed or accepted for any damage resul ting from the use of the assembled model
aircraft or from this instruct ion manual including but not limited to direct, indirect, incidental, special, and consequential
damages. In no event shall Precision Aerobatics' liabil ity exceed the original purchase price of this kit.
BY THE A CT OF A SSEMBLING A ND OPERA TING THE A SSEMBLED MODEL YOU A SSUME
Radio controlled model aircraft that are not properly assembled, operated and maintained can cause serious damage to
body and property. If you are not an experienced pilot and airplane modeller you must use the help of an experienced pilot
or preferably an authorized flight instructo r who will assist you with the assembly and flying of this model.
SAFETY NOTES:
1.
Before assembling and flying th is model read carefully any inst ructions and warnings of othe r
manufacturers for all the produc ts you installed or u sed on your model (especially radio equipment and
power source).
2.
Check thoroughly before every flight that the ai rplanes components are in good shape and funct ion
correctly. If you find a fault do not fly the model until you have corrected it.
3.
Radio interference caused by unknown sources can occur at any time without not ice. In such a case, your
model will be uncontrollable and completely unpredictable. Make sure to perform a range check before
every flight. lf you detect a control p roblem or interference du ring a fl ight, immediately land t he model to
prevent a potential accident
4.
Youngsters should only be allowed to assemble and fly these models under the i nstru ction and supervis ion
of an experienced adult.
5.
Do not operate this model in a confined area.
6.
Do not stand in line with, or in front of a spinning propeller and never touch it with any object.
Precision Aerobatics quality control team checks each plane before it leaves the factory to ensure that each kit is in fine
condition. We have no bearing on the condition of any component parts damaged by use, modification or assembly of this
model. Inspect the components of this kit upon receipt. If you find any parts damaged or missing, contact the hobby shop
who supplied this kit immediately. All warranty claims to be submitted with in 30 days of purchase and in clude the orig inal
dated receipt. This warranty is extended to the original purchaser only. We do not accept the return or replacement of
parts on which assembly work has already begun. Precision Aerobatics reserves the right to change this warranty at
anytime without notice.
NOTE:
Although we have done most of the work for you and not much assembling work left in completing the model and getting
it ready to fly we urge you to read the manual thoroughly.
We have spent weeks in preparing the manual making it as detailed as possible, and you will find in it many tips and
suggestions that will help you get the most out of your plane, in the safest way possible.
We hope you'll find the manual helpful and that you'll enjoy your new model.
111
Warning – This is not a toy!
Equipment Selection
A ND A CCEPT FULL LIA BILITY FOR YOUR A CTIONS.
Precision Aerobatics Team
1
www.PrecisionAerobatics.com
Copyrights ©2017 Precision Aerobatic s. All rights reserv ed

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Summary of Contents for Precision Aerobatics Katana 52

  • Page 1 Do not stand in line with, or in front of a spinning propeller and never touch it with any object. Precision Aerobatics quality control team checks each plane before it leaves the factory to ensure that each kit is in fine condition.
  • Page 2: Equipment Selection

    Equipment selection At P recision Aerobatics we have gone to great lengths developing the KATANA 52 in order to provide you with an airc raft like no other. We have used many unique production techniques including our revolutionary PA FiberFusion® to c reate the lightest, s trongest airc raft possible.
  • Page 3: Pre-Assembly

    Avoid using a heat gun as it s preads the heat over a large area and can easily cause twis ts and warps . Tip: As most parts of the Katana 52 will be assembled using epoxy, it is recommended to have s ome D enatured Alcohol and paper towels handy for the occasional quick clean ups during the build.
  • Page 4: Aileron Servo Installation

    With the exception of the aileron s ervos , the easiest way to make the openings is by ‘c utting’ the film with the heated end of a paperclip (to heat use a c igarette lighter or a candle) or with a very s harp modeling knife. For the ailerons ’...
  • Page 5 Warning - we recommend not t o use the rubber grommets and eyelets supplied with some servos as this method of mounting will introduce excessive flex of the servo case under flight loads and will cause a lost of resolution in control (“blowback”...
  • Page 6: Tail Section

    Trim the tab off the ball link Test fit control horn Notch pushrod end Secure the bolt with Loctite Lightly sand, roughen and notch the ends (12mm, 1 /2 ”) of the two CF pushrods using a small triangle file to ensure a secure glue bond.
  • Page 7 Not e: Peel off the protec tion bac king of the strips before using them, otherwise, they will not stick to the surface. Sealing the elevator hinge gap is an ext remely important s tep and an integral part of the Katana 52 design. Skipping this...
  • Page 8 I ron down the covering at the area to be c ut and with a sharp blade or fine saw, carefully c ut the balsa out. Insert the stabilizer all the way into its s lot, until the elevator leading edge hits the rear of the fuselage. while elevator is in neutral position you can easily mark the final lines to cut in order to allow the elevator to fit through.
  • Page 9 D rill a hole in the marked position using a 1 .5 mm (1 /16 ”) drill bit. I f tail LG s trut doesn’t fit into the groove use a fine file to c orrect. With the LG in place verify its alignment with the rudder and if needed c orrect it by bending the s trut with pliers before glued in.
  • Page 10 Katana 52 . For tec hnical data on the Thrust 45R please visit www.t hrust mot ors.com and download the data sheet.
  • Page 11 I f your motor box broke due to a c rash we recommend that you don’t attempt to repair it as it may fail in flight. Replacement motor box is available (see replacement parts list at the end of this manual). Instructions and video on how to replace it are available on our website.
  • Page 12 Brush epoxy Place fiberglass strip over and brush epoxy on top Epoxy over the front fra me 7. Us ing a c otton s wab apply a thin layer of epoxy in the mounting plate vent holes except the mounting bolts' holes . wipe off any excess where the motor will be mounted.
  • Page 13: Motor And Esc Installation

    Step 4 Pierce a hole in the covering to fit the CF Epoxy ALL seams of the motor box Cover the entire CF rod with epoxy Verify CF corner stringers do not protrude with the bulkhead Motor and ESC Installation Ins tall the Thrust 45R motor in front of the firewall using the supplied mounting bolts .
  • Page 14 ESC installation (zip ties) Solder an extension lead and insulate with shrinking tubes X mount & bolts Apply blue Loctite Battery lead RX lead Receiver and battery Placement It is important to properly route the RX aerial to avoid any RF noises . I f c onventional FM /PCM receiver is used run the aerial a distance away from the servo leads and CF members along the outside bottom center of the fuselage towards the rear.
  • Page 15: Wheel Pants

    Thick double sided Sticky tape Battery pack Spektrum 2.4GHz receiver installation Landing Gear struts (LG) Before installing the wheels , fit the LG cuffs onto the s truts and leave them loose for now (they will be installed at a later step).
  • Page 16: Installing The Landing Gear

    Installing the Landing Gear Ins tall the LG onto the fuselage using M3x10mm black bolts and was hers . You may apply temporary Loctite to the bolts . Not e: if the LG struts hit the balsa on the s ides of the fuselage, use a s harp modeling knife to trim the balsa keeping the gap with the LG to minimum.
  • Page 17 We recommend using the pre-cut 2 .17 ” lightweight PA Carbon Fiber s pinner (PA code # AC-2219) that perfec tly matches the Katana 52 cowl shape, to retain optimum CG and avoid carrying unnecessary weight. Y ou can temporarily place a spacer in between the backplate and the cowl to get a minimal gap while fastening the prop adaptor.
  • Page 18: Wing Attachment

    I t s hould fit s nug APC propellers are not recommended for the Katana 52 due to the higher amps drawn and vibration whic h can lead to a motorbox failure.
  • Page 19: Center Of Gravity (Cg)

    NOTE - T he Katana 52 is an excellent high s peed precision aerobatics and 3D performer; therefore, in order to ac hieve the best of both worlds we s pent many hours tes ting the CG to find the “s weet spot” that offers a peak in overall performance.
  • Page 20: Applying The Decals

    Initial Flight timer settings Unlike older lithium polymer (L iPo) packs where a drop of performance is us ually noticed at the last quarter of the flight warning the modeler to land, PA newer high discharge lithium polymer packs have the ability to s ustain a higher and constant voltage which results in cons istent performance throughout the flight until LVC (L ow Voltage Cutoff) is being ac tivated.
  • Page 21 3D and Knife Edge tracking and will add the funky look to your plane. We highly rec ommend them to complete the aerodynamic design of the Katana 52 in order the get the best performance. M ore info about the VGs can be found on www.P recisionAerobatics .com...
  • Page 22: Optional Extras

    Katana 52 Replacement parts list We believe that you will enjoy your Katana 52 for a very long time. In the event of inevitable mis haps and broken parts , all you need to do is to order replacement spare parts to res tore your Katana 52 and be back in the air.
  • Page 23 PA Carbon Fiber 2.17” Ultimate Style CNC machined pre cut spinner (PA Item # AC-2219) The PA 2.17” Carbon Fiber spinner is a perfect match to your KATANA 52. The combination of precision CNC machined Aluminum back plate and our German made precision prop adapter allows true spinning without motor’s performance deterioration.
  • Page 24 ® set up including T hrust ® motor and Q uantum Pro ESC! A winning c ombination thoroughly tested with proven performance. Go to www.vi meo.com/cha nnels/P recisi onAeroba ti cs to watc h hundreds of videos of Precision Aerobatics models using T hrust / Q uantum setups . www.VoxProps.com www. Thrustmotors.com...
  • Page 25 Being the third release in ‘NEXT Generation PA’ it allows you to do a lot more than you would expect. Despite being a 3D plane in every aspect, it is extremely stable and precise - capable of impressive precision aerobatics manoeuvres with a feel much like a 150cc airplane.
  • Page 26 Advance pilots will fall in love simply because of its exceptionally wide flight envelope – this plane opens up a whole new world of aerobatic maneuvers by combining 3d with precision aerobatics that will ultimately expand your flying skills. Despite its wingspan being 1” smaller than the Extra MX, it is actually a much larger plane and has a look and feel of a large plane at the field.
  • Page 27 Ultimate AMR ARF Coming www.UltimateAMR.com soon! Wing span - 40 inch / 1014mm AMR MX Length - 43.08 inch / 1095mm Wing area - 582.4 sq inch 52" Flight weight ~ 38.45oz / 1089gr Wing loading - approx 9.5oz sq ft!! Motor: PA Thrust 40 ESC: PA Quantum 45A Servos: 4 Micro servos 1.6kg/cm torque...
  • Page 28 Official Academy of Model Aeronautics National Model Aircraft Safety Code 1 . A model aircraft s hall be defined as a non- human-carrying device capable of s ustained flight in the atmosphere. It s hall not exceed limitations established in this c ode and is intended to be used exclusively for recreational or competition ac tivity.

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