KAVAN RESCO - Instruction manual
Introduction
Precautions
This RC model is not a toy. Use it with care and strictly follow the instructions in this manual.
Assemble this model following strictly these instructions. DO NOT modify or alter the model. Failure to do so, the warranty will lapse automatically. Follow the instructions to obtain a safe and solid model at the end of the assembly.
Children under the age of 14 must operate the model under the supervision of an adult.
Assure that the model is in perfect condition before every flight, taking care that all the equipment works correctly and that the model is undamaged in its structure.
Fly only on days with a light breeze and in a safe place away from any obstacles.
The model you build and fly is not a toy! Although it may seem light and slow in flight, it is capable of causing injury or other damage if mistreated. It is up to you whether you build the model properly, fly properly and continue to fly in accordance with common practice and rules (and common sense). If you are just getting started with aircraft models, ask for advice from your model shop or an experienced modeller at your local modelling club to find a good instructor.
You must build the model according to the instructions. Do not alter or modify the model, as doing so may result in an unsafe of unflyable model. Take time to build straight, true and strong. Use proper radio and other equipment that is in first class condition, properly install all the components and test their correct operation before first and any further flight. Fly the model only with competent help from a well experienced modeller if you are not already an experienced RC pilot.
Specification
| Wingspan | 1990 mm |
| Length | 1240 mm |
| All-up weight | 440 g plus |
| Wing section | modified AG |
| CG position | 80 mm |
| Controls | Rudder, elevator, spoiler |
Recommended RC equipment
- Rudder and elevator servo: Hitec HS-53 2×
- Spoiler servo: Hitec HS-65MG, Dymond D47
- Receiver battery: Panasonic Eneloop AAA 800mAh 4.8 V pack
Recommended glues
Unless stated otherwise, use medium thick cyanoacrylate (CA) glue. D-box sheeting and wing ribs are better to be glued using a water-resistant white aliphatic resin (alternatively, you can use this sort of glue for most of wood-to-wood joints). The highly loaded parts (wing roots, wing main spars, firewall etc.) should be glued together using 30 minute (or slower) epoxy offering high strength and enough time for the correct positioning.
Tools and accessories
- Very sharp modeller's knife (e.g. Excel 16001 with no. 11 blades)
- Scissors
- Electric drill with drill bits
- Wire cutter
- Long nose pliers
- Screwdrivers
- Razor saw
- Sandpaper no. 80, 100, 180, 360–400
- Needle files
- Clothing pegs
- Modeller's pins
- Epoxy mixing stick and vessel
- Masking tape, clear sticky tape
- Rubbing alcohol (for cleaning up excessive epoxy)
- Paper tissue or soft cloth (for cleaning up excessive epoxy)
- Straightedge with scale
- Square edge
- Thin clear plastic film (for protecting the building plan)
- Permanent marker
- Modeller's sealing iron, heat gun (for covering)
- Lightweight balsa filler
Model assembly
Tail surfaces
- Trial fit the parts of the horizontal stabilizer, elevator, fin and rudder – no glue yet! Sand as necessary to obtain perfect fit. (Fig. 1)
- Roughen the surface of the 3×0.5mm carbon spar using no. 150 sandpaper and glue it with medium CA to the trailing edge of the fin. (Fig. 2)
- Glue together all the parts using medium CA or aliphatic resin. (Fig. 3+4)
Fuselage (glider version)
- Trial fit the parts of the fuselage – no glue yet! Sand as necessary to obtain perfect fit. (Fig. 5)
- Glue the ply reinforcement and balsa triangle stocks to the fuselage sides. Glue together the canopy. Glue the canopy magnets before final sanding. Please do not forget to check and mark the polarity of magnets first – they must attract each other. (Fig. 6+7)
- Glue together the front part of the fuselage. Do not forget to sand the edges of the formers to the shape. (Fig. 8)
- Epoxy the wing nut plate with nuts already glued and the tail boom holding formers in place. (Fig. 7+8)
- Glue the nose cone parts in place and sand them to the required shape using the supplied template. (Fig. 8+9)
- Partially cut (ca 1 mm deep) and crack the fuselage sides along the rear edge of the rear fuselage former in order to create a conical transition between the fuselage and the tail boom (the cut line is to be soaked with thin CA before the final sanding). Slide the tail boom fairing ring and the rear fuselage ring onto the tail boom tube (on the end without notches). Insert the tail boom into the fuselage (no glue yet – it will be glued only after the final sanding and covering of the fuselage). Trial fit all the parts and sand carefully to obtain a tight fit; the fairing matching the rear edge of the fuselage. The rear fuselage ring tack glue to the fuselage (do not glue it to the tail boom) and the fairing ring glue to the tail boom. (Fig. 10+11)
- Glue the upper and lower sheeting of the fuselage; do not forget to epoxy the tow hook plate. (Fig. 9+10+11)
- Attach the canopy to the fuselage and sand everything smooth. (Fig. 9+10+11)
- Locate the towhook. Cut the opening for it in the lower part of the fuselage and drill the holes for the fixing screws. (Fig. 12)
- Assemble (no glue yet) the horizontal tailplane pylon consisting of the Lite Ply core with tailplane fixing nuts (M4 front, M3 rear), 4 mm balsa sides and Lite Ply tailplane seat. Insert the pylon into the corresponding notch in the fuselage. Trim if necessary, open up the elevator push rod tunnel. Once satisfied, epoxy together the Lite Ply core with the balsa sides and sand to shape using the supplied Lite ply jig. Epoxy the tailplane seat in place. (Fig. 47A+47B+47C)
Fuselage (electric version)
- The building sequence of the electric version fuselage is basically the same as with the glider version except for the firewall and nose. Epoxy the firewall in place and sand the nose to the desired shape matching your spinner. (Fig. 13-15)
- Before you epoxy the firewall in, make sure the openings and holes in the firewall match your motor – make any changes as necessary or cut a new firewall to match your motor perfectly. (Fig. 13)
Wing centre section
- Epoxy together the wing central ribs. Insert 3 mm beech dowels into the holes in order to obtain correct match. (Fig. 16+17)Note: Make a left and right pair of ribs.
- Epoxy the wing fixing bolt plate between the central ribs. (Fig. 18)