KAVAN Mirai V-tail - Instruction manual

Introduction

Precautions

This RC model is not a toy. Use it with care and strictly following 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 in order 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 conditions before every flight, taking care that all the equipment works correctly and that the model is undamaged in its structure.

Fly only in days with light breeze and in a safe place away from any obstacles.

Caution: This RC model you will build and fly is not a toy! Although it may seem to be light and slow in flight it is capable of serious bodily harm and property damage. It is your responsibility and yours alone - to build this model correctly, properly install RC equipment and motor and to test the model and fly in accordance with all safety standards (and common sense) as set down in Safety Codes valid in your country. If you are just starting RC modelling, consult your local hobby shop or an experienced modeller in your local RC 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.

Note: We, as the kit manufacturer, can provide you with a top quality kit and instructions, but ultimately the quality and flyability of your finished model depends on how you build it. We cannot in any way guarantee the performance of your completed model, and no representations are expressed or implied as to the performance or safety of your completed model.

Specification

Wingspan	1995 mm
Length	1210 mm
All–up weight	420 g plus
Wing section	Special RES HB
CG position	80 mm
Controls	Rudder, elevator, airbake, (motor)

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 cyanoacrylate (CA) glue (KAV9952 KAVAN CA Medium). D-box sheeting and wing ribs are better to be glued using a water-resistant white aliphatic resin, like our KAV9960 KAVAN White Glue (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 (like KAV9967 Epoxy 30 min) 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
Soldering iron and solder
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

Everything has been designed extremely light; yet strong enough. The tail feathers are removable for easy transport/storage.

Trial fit the parts of the stabilizers and control surfaces – no glue yet! Sand as necessary to obtain perfect fit. (Fig. 1)
Tack glue the plastic tubes V14 into the stabilizers with a few drops of CA.
Roughen the surface of the 3×0.5mm V10 carbon spars using no. 150 sandpaper and glue them with medium CA to the trailing edges of the stabilizers.
Glue together all the balsa parts using medium CA or aliphatic resin.
Glue the stabilizer root ribs V4L/V4R (1.2 mm plywood). Use the V16 carbon rods inserted into the V14 tubes as alignment pins for the V4L/V4R root ribs. Double-check the root ribs were straight and square to the stabilizers. Take care the V16 rods were not glued in to the fin in this step. (Fig. 2)
Put the tail surfaces aside for now. They will be finished after the tailplane seats are installed to the tail boom.

Fuselage (glider version)

Trial fit the parts of the fuselage– no glue yet! Sand as necessary to obtain perfect fit. (Fig. 3)
Glue the Lite Ply reinforcement plates F3 and F5L to the inner side of the F17L fuselage side (with the large opening for the F16 hatch). Glue the plates F3 and F5R to the inner side of the F17R fuselage side (without the hatch opening). (Fig. 4)
Glue the F6 locking plate to the front of the F16 hatch. The locking plate has to match the position of a notch in the F5L reinforcement plate and the hatch matched the opening in the F17L fuselage side. The pair of F21 magnets will be epoxied into the F16 hatch and F5L plate only after the fuselage is covered – otherwise the high temperature of your sealing iron might demagnetize the magnets. (Fig. 14)
Epoxy together the tail boom holder consisting of the Lite Ply part F13 and plywood parts F10 and F14. Attach the F9 wing bolt plate with the M5 aluminium captive nut epoxied in place. Insert the entire assembly of the tail boom holder between the fuselage sides. Now you can start gluing the fuselage from the rear to the nose. (Fig. 6)
Glue together the nose part of the fuselage; do not forget bevelling the edges of the fuselage formers and F18 and F19 Lite Ply braces as required. (Fig. 9)
Epoxy the F9 wing bolt plate and the tail boom holder assembly in place.
Bevel the F1 nose blocks and glue in place.
Partially cut (ca 1 mm deep) and crack the fuselage sides along the front edge of the F2 fuselage former and glue them to the F1 blocks (the cut line is to be soaked with thin CA before the final sanding).
Epoxy the tow hook plate F15 in place. Glue the F20 carbon ballast tube into the holes in F7 and F8 formers. (Fig. 10)
Glue the upper and lower 2.5 mm balsa sheeting to the fuselage. Slide the tail boom tube F22 onto the tail boom holder – do not glue yet. Fit and glue the balsa fairing plates F11 and F12 in place. Carefully match all the parts so the tail boom had a tight fit but remained still easily detachable. (Fig. 11) (Fig. 12)
Sand the entire front part of fuselage. Take care all the parts including the F11/F12 fairing created a smooth transition between the fuselage and the tail boom. (Fig. 14)
Insert the V16 carbon rods into the pre-drilled holes in the tail boom; glue them in place. The bottom ends or the rods should stick out by ca 0.5 mm from the tail boom (there is an opening in the bottom side of the tail boom in order to accommodate the tail skid V12) – refer to Det. D. (Fig. 2)

Fuselage (electric version)

The building sequence of the electric version fuselage is basically the same as with the glider version except for the firewall, nose and servo tray. Also, the F20 ballast tube is not to be used.
Instead of Lite Ply F3 reinforcement plates, glue the balsa triangular sticks E4 along the edges of fuselage sides F17L and F17R. (Fig. 5) (Fig 7)
Epoxy the E3 servo tray behind the F7 fuselage former.
Epoxy the firewall E2 in place. 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.
Once the bottom and upper sheeting is in place cut the fuselage sides flush with the front edge of the E2 firewall. Temporarily install your motor and use the spinner as a jig to align the E1 plywood ring. Once satisfied, epoxy it in place. Sand the nose to the desired shape matching your spinner. (Fig. 9) (Fig. 10)

Tail surfaces - continued

Glue the V9 pins into the tailplane seats V8L and V8R. (Fig. 15)

Slide tailplane seats V8L and V8R onto the V16 carbon rods.
Insert the V13 tailplane locks into the notches in the stabilizers (do not glue yet). (Fig. 16)
Slide the stabilizers onto the V16 carbon rods and push against the V8R/ V8L seats until you hear the click announcing the V13 lock has engaged the V9 pin of the stabilizer seat. Tack glue the locks into the stabilizers with a few drops of CA. (Fig. 17)
Push the stabilizers together with the tailplane seats to the tail boom and tack glue the seats to the tail boom (apply the cyano sparsely; keep away from the locks and V16 carbon rods).
Remove the stabilizers and epoxy the V8R/V8L seats to the tail boom. Work thoroughly, but apply the epoxy sparsely. Prevent the glue from running into the openings for the stabilizer locks.
The ruddervator horns V11 as well as the V12 tail skid will be glued in later, after the tail surfaces are covered.

Wing

Wing centre section

Epoxy together the wing central ribs W3 and W4. Insert 3 mm beech dowels into the holes in order to obtain correct match.<br
Note: Make a left and right pair of ribs. (Fig. 20)
Epoxy the W10 wing fixing bolt plate between the central ribs. (Fig. 21)
Epoxy together the parts of the W13 main spar shear webbing; the short 0.8 mm ply W11 joiner (with a hole in the centre) to the front side, the W12 long joiner to the rear side. (Fig. 22) (Fig. 23)
Make bays for P32 wing carbon joiners; epoxy together the W14 front (shorter) 0.8 mm ply plate, 5 mm ply central plate W15 and rear 0.8 mm ply (longer, slanted edge) W16 plate. Prevent the epoxy hardening inside the bays – put the parts together with the P32 carbon joiner inserted, then immediately remove the joiner (do not forget cleaning the joiner using a paper tissue and rubbing alcohol before the glue sets). (Fig. 24)
Slide all ribs onto the mains spar shear webbing (no glue yet!). Bind the joiner bays with the provided Kevlar thread and soak with medium CA. (Fig. 25) (Fig. 26)
Insert the W27 rear spar, trial fit the W30 leading and W17 trailing edges. Sand to fit if necessary. Once satisfied with the fit, glue all the parts of the wing centre section with medium cyano over the building plan protected with a sheet of thin clear plastic film (you might find better gluing ribs to the W13 main spar shear webbing with an aliphatic resin).
Edge glue together the W24 upper D-box sheeting (1.5 mm balsa) and the W26 upper 8×2 mm spruce stick main spar. Once cured, glue it to the wing using aliphatic resin. Use a hardwood stick positioned along the leading edge to push the balsa sheeting straight and even to the W30 leading edge.
Glue the W26 lower 8×2 mm spruce stick main spar in place.
Bevel both two R5 end ribs of the wing centre section using the supplied 7° dihedral jig. Then glue the W6 3 mm Lite Ply end ribs. You might find easier doing it later; with the P32 joiners inserted and finished wing outer panels attached.
Glue the W21 airbrake frame to the upper side of the wing. Insert and glue the airbrake bay reinforcement plate W20 (balsa 1.5 mm) into W5, W7 and W8 ribs. Cyano the W34 fibreglass bushings for the airbrake torsion bar onto W3/W4 and W7 ribs. Insert the 3 mm carbon torsion bar W37 into the bushings. Do not forget to slide the W36 control horn in the centre. Do not glue yet! The control horn and airbrake levers are to be glued in place once the wing is covered and the servo and airbrakes fitter (refer to Det. C).
Glue the W29 magnet holders to the bottom side of W21 airbrake frames. The pairs of W33 magnets will be epoxied into the holders W29 and airbrakes W22 and W23 only after the wing is covered.
Glue the 1.5 mm balsa W28 upper centre sheeting (supplied in 2 pieces) and the bottom W19 sheeting in place over the W3 ribs.
Do not glue the W25 airbrake servo hatch. It will remain removable for easy access to the servo. You can secure it using e.g. small wood screw (not supplied in the kit) to the 5 mm plywood holders W32. Do not forget to cut the opening for the wing fixing bolt into the balsa sheeting.
Epoxy the W1 central riblet with the wing alignment pin sandwiched between two W2 riblets in place. Glue the 1.5 mm front bottom sheeting W18 between the W3/W4 ribs.
Sand to fit and glue the 2.5 mm balsa gussets W38 in place. (Fig. 27–31)
Fine sand the entire wing centre section (incl. the airbrake).

Wing outer panels (Fig. 32–36)

The wing outer panels are to be constructed in the same manner as the wing centre section. The main difference is that the inner part and the outer winglet are built as one part on a flat surface. Once the structure is finished, you will cut it between the end/root ribs; then bevel to obtain the correct dihedral and glue together.
Glue together both two wing outer panels over the building plan protected with a sheet of thin clear plastic film (remember – you are building left and right wing panels!). Please note the inner spars are made of spruce sticks P33 resp. P23, whilst the winglet spars are made of balsa sticks (P34 and P31).
Glue the top D-box sheeting P27 and P28 in the same manner as the wing centre sheeting W24.
Sand the wing tip flat, glue the P17 winglet fairing in place and bevel it to the required 35° angle. Insert the P29 plywood joiner and sand the P18 wing tip to fit. Once satisfied glue the joiner and wing tip in place.
Sand to fit and glue the 2.5 mm balsa gussets P33 and the P34 diagonal braces made of 5×3 mm spruce stick in place.
Cut off the outer winglets between the end ribs P10 and P11; bevel the P11 ribs using the supplied 7° dihedral jig. Epoxy the wing panels and winglets together.
Bevel the P2 root ribs of the wing outer panels using the supplied 7° dihedral jig. Trial fit the P32 carbon wing joiner into the respective bays; there should be a tight fit, no play. If there is a significant play, put some epoxy to appropriate area of the joiner and sand as necessary once the glue hardens.
Glue the 3 mm Lite Ply P1 root ribs with 3 mm beech alignment pins P30 in place.
Fine sand the entire wing outer panels.

Covering

Thoroughly sand the surface of all parts with no. 360–400 sandpaper and carefully vacuum all the dust (the iron-on film does not stick well to a dusty surface; the dust also contains hard grains released off the sandpaper capable to ruin the smooth coating of your sealing iron quickly).
Use as light iron-on film as you can get (transparent Oracover, Oralite etc. – not supplied in the kit). Follow the instruction manual supplied with the covering film of your choice please.

Hinging the control surfaces

Use strips of a high quality hinging tape (available in hobby shops) or strips of the same iron-on film you used for the covering. Remember to apply the tape with the control surface deflected to the limit in order to get free movement of the particular control surface.

Pushrod installation

Tack glue the pushrod tubes to the 1.5 mm balsa pushrod tube holder with three plywood formers supplied in the kit. Do not shorten the tubes yet – they will have to go all the way into the front part of the fuselage. The push rod tubes go all the way through the tail boom tube. (Fig. 37)
Insert the balsa holder with push rod tubes into the tail boom; align with the front part of the fuselage. Once satisfied tack glue the holder to the tail boom tube.

Tail boom installation

Attach the wing centre section to the fuselage and secure with the M5 nylon bolt. Attach and secure the tail surfaces to the tail boom with the push rod tubes installed in their holder (the holder prevents the tubes from getting loose and keeps any unwanted play in the elevator and rudder linkage next to zero). Slide the tail boom onto the holder on the fuselage front part. Thread the push rod tubes through the holes in F10, F8 and F7 formers.
Check that the fuselage is straight looking from above. Align the V-tail symmetrically to the trailing edge of the wing when looking from behind. Once satisfied use 30 min epoxy to secure the tail boom in place. Double-check the correct alignment of the wing, fuselage and tailplane before the glue hardens.

Servo installation

Rudder and elevator servos installation

The ruddervator servos are to be installed into their servo tray F23 under the F16 hatch (glider) or into the E3 servo tray under the wing (electric version). Cyano the push rod tubes into the fuselage formers.
Solder the M2 brass threaded couplers to one end of the piano wire pushrods, attach the M2 ball links and fasten them to the ruddervator horns. (Fig. 1) (Fig. 2)
Fit the V-tail to the fuselage; insert the control horns into the ruddervators – do not glue yet. Set the servos in neutral position with your radio on and mark the correct length of the push rod wires. Make a "Z" bend on the end of the pushrod and fit it to the servo arms. Check once again and only then cyano the control horns in place. Do not forget to glue the end of the push rod tubes to the fuselage.

Spoiler servo installation

The spoiler servo is to be installed using a strip of double sided foam tape (not supplied in the kit) to the W28 balsa sheeting. First, apply thinned epoxy or thin cyano to the inner surface of the W28 sheeting in order to be sure the double sided foam tape will stick. Reinforce the inner surface of the W22 and W23 airbrakes in the same manner.
Epoxy the W33 magnets into the holes in W22 and W23 airbrakes and W29 holders on the airbrake frames. Please check the polarity of magnets first – they must attract each other. (Fig. 30) (Fig. 31)
Refer to the Det. C on the building plan during the final airbrake servo installation. Link the servo horn and the W36 torsion bar lever with two ball links joined together with an M2 threaded rod (saw off the head of the supplied M2×10 mm screw).
Once you check the servo can move freely within the required range, cyano the W36 lever to the W37 carbon torsion bar. (Fig. 39)
With your radio on, set the airbrake servo to the "airbrake fully extended" position. One at a time, set the W22 and W23 airbrakes in the fully extended position (-24 mm), push the corresponding lever W35 to the airbrake and secure with a small drop of cyano to the W37 torsion bar. Take care the position of both two airbrakes was exactly the same! Once satisfied, secure the joints of W35 and W36 levers with the W37 torsion bar using a sparse amount of epoxy.
Finally, cut an opening into the W25 hatch to allow free movement of the airbrake servo arm (if necessary) and secure it to the W32 holders. (Fig. 40)

Wing root ribs

Glue the pairs of W31 magnets using 5 min epoxy into the openings in W6 and P1 ribs. Please check the polarity of magnets first – they must attract each other.

Towhook (glider)

Install the towhook to the pre-drilled holes in the F15 plate.
Keep the recommender CG position 78–82 mm behind the wing leading edge.
Set the towhook 10 mm in front the CG for the first flight.
You have to loose the front screw in order to move the towhook.

Power system installation (electric version)

Fit your motor using appropriate screws to the firewall. Secure the ESC and power pack using Velcro tape into the cockpit. With your RC set on test whether the motor rotates in the correct direction (counter clockwise when looking from the front) If it not the case, change the setting of your ESC or swap any two of the three cables between the motor and ESC. Fit 30 mm spinner with blades corresponding to your motor and battery set-up.

Recommended control surface throw, CG position

CG position: 78–82 mm
Rudder: ±13 mm
Elevator: ±13 mm
Spoiler: -24 mm
Brake → Elevator mix: -2 mm elevator at full airbrake

Flying

Be sure you are using fully charged batteries. Now (and before any further flight again) check correct function of whole radio equipment, motor and moving of control surfaces. Be sure any part of flight equipment cannot move during flight. We strongly recommend making a range check (see your radio instruction manual for details).

The first flight: Wait for a calm day. Fly only on a safe site as a RC club flying field. Glider will be very happy on your favourite slope on a calm day. The very light lift will allow perfect fine trimming out.

Glider: Switch your transmitter and then the receiver on and check all the working systems one more. Facing INTO the wind hold your transmitter in one hand; grip the model in the other hand near the centre of gravity. Hold it at head level and give the model a fairly powerful push exactly into wind; wings level, nose slightly down. Your model should now glide in a long, flat and straight path without needing any help from you. Use the controls gently if necessary, and adjust the trim tabs until your MIRAI glides above described way. Now check the position of control surfaces; set length of pushrods to bring back trim tabs on your transmitter to central position if necessary (we strongly recommend doing it in any way). Check again gliding of your MIRAI.

Now you are ready to make your first bungee launch. Always use a bungee set appropriate to the size (100–150 m) and weight of your model!

Electric version: Switch your transmitter and then the receiver on and check all the working systems once again. Launch your MIRAI with throttle fully open INTO the wind. During climbing be gentle on the controls; try to keep the model flying into the wind until you have about 100–150 metres of altitude. Climb slowly - too steep climbing may cause the model will stall and fall to the ground. You are at 150 metres - this is time to trim out your MIRAI at full power. After everything is OK - it means the model at approx. 50–60% of full throttle flies straight without turning, descending or ascending (if your MIRAI already tends to ascend you will have to increase motor down thrust), turn the motor off and test MIRAI’s gliding characteristics.

Keep your MIRAI into the wind and observe its flight. If turns without power right (although under power it kept the straight direction) it will be necessary to increase motor right side thrust and vice versa. If descends too much without power (although under power it kept the level flight) you will have to increase motor down thrust (assuming the centre of gravity is correct! - check it after landing).

Final fine tuning: During next flights trim out your MIRAI to find optimal setting - safe climbing and good gliding - it is a compromise, of course. You might find useful programming a spoiler → elevator mix (if your radio allows) that will eliminate the nose pitching when the spoiler is deployed. In general the CG position should be located between 78–82 mm behind the wing leading edge. By moving the CG back you get better gliding performance whilst reducing the stability. It makes your model more sensitive on controls and increases the model reaction on thermal. The back CG position makes the model more difficult to fly and requires more attention from you, while a nose heavy model is easier to fly but you will lack the performance. We recommend starting with the CG at 78 mm behind the leading edge. Beyond 82 mm the increasing lack of stability prevails over the gain of gliding performance. On windy days, you can improve the penetration of the glider version putting additional ballast into the F20 ballast tube.

Parts list

Main parts
Part	Quantity	Building plan no.	Material
Building plan 1:1	1
Instruction manual	1
Sheet of stickers	1
Pushrod set	2		Plastic tube + 0.8 mm piano wire
Tail boom	1	F22	Carbon tube Ø18×10 mm
Pushrod holder + formers	1+1		Balsa 1.5 mm + 0.8 mm Plywood
Bag no. 1 - small parts
Adjustable towhook w. M3 socket screw	1		Fibreglass + metal
Magnet	6	F21, W33	Neodymium 3×3 mm
Magnet	4	W31	Neodymium 10×3 mm
Wing bolt M5	1		Nylon
Captive nut M5	1		Aluminium
Rudder horn	2	V11	Fibreglass 1.5 mm
Wing outer panel alignment pin	4	P30	Beech dowel Ø3 mm
Fuselage corner radius template	1		Lite Ply 3 mm
Nose shape template	1		Lite Ply 3 mm
Dihedral jig 7 deg	1		Lite Ply 3 mm
Airbrake magnet holder	2	W29	Lite Ply 3 mm
Fuselage hatch lock	1	F6
Kevlar thread	1
Carbon rod	4	v11	Carbon rod Ø2 mm
Ruddervator servo tray	1	F23
Airbrake lever set	1	W34+W35+W36	Fibreglass plate 1.5 mm
V-tail seat with pin	1+1	W8L/R, W9	Lite Ply 3 mm, steel Ø1.5 mm
Ball link short M2	4
Threaded coupler M2	2		Brass M2/0,8 mm
Airbrake link bolt M2	1		M2×10 mm machine screw
Tail skid	1	V12	Balsa 3 mm
Bag no. 2
Nose block	2	F1	Balsa 10 mm
Towhook plate	1	F15	Plywood 1.5 mm
Wing bolt plate	1	F9	Plywood 3 mm
Fuselage former	1	F7	Plywood 3 mm
Fuselage former	1+1+1	F2, F8, F9	Lite Ply 3 mm
Horizontal tail boom holder	1	F13	Lite Ply 3 mm
Vertical tail boom holder	1	F14	Plywood 3 mm
Fuselage cross-brace	3	F18, F19	Lite Ply 3 mm
Bag no. 3
Wing rib	2	W3	Lite Ply 3 mm
Wing rib	4	W6, P1	Lite Ply 3 mm
Wing rib	2	W4	Plywood 0.8 mm
Main spar shear webbing joiner short	1	W11	Plywood 0.8 mm
Main spar shear webbing joiner long	1	W12	Plywood 0.8 mm
Wing joiner bay plate	2+2+2+2	W14, W16, P25, P26	Plywood 0.8 mm
Riblet with wing alignment pin	1	W1	Plywood 3 mm
Riblet	2	W2	Plywood 0.8 mm
Wing bolt plate	1	W10	Plywood 2 mm
Wing joiner bay	2+2	W15, P22	Plywood 5 mm
Wing centre sheeting	1+1+1+1	W18, W19, W28a, W28b	Balsa 1.5 mm
Airbrake bay reinforcement plate	2	W20	Balsa 1.5 mm
Airbrake servo hatch	1	W25	Plywood 1.2 mm
Winglet joiner	2	P29	Plywood 1.5 mm
Airbrake servo hatch holder	2	W32	Plywood 5 mm
Wing joiner 2 pieces	2	P32	Carbon
Bag no. 4 - V-tail
Stabilizer	2	V1L/R	Balsa 3 mm
Ruddervator	2	V2	Balsa 3 mm
Stabilizer tip	2	V3	Balsa 3 mm
Stabilizer ribs	2+2+2	V5, V6, V7	Balsa 3 mm
Carbon stabilizer reinforcement	2	V10	Carbon 0.5×3 mm
Plastic tube	4	V14	Plastic tube Ø3 mm
Stabilizer root rib	1+1	V4L/R	Plywood 1.2 mm
Stabilizer lock	2	V13	Fibreglass 1.5 mm
Bag no. 5
Firewall	1	E2	Plywood 3 mm
Balsa triangle stock	4	E4	Balsa 8×8 mm
Spinner ring	1	E1	Plywood 1.2 mm
Servo tray electric	1	E3	Lite Ply 3 mm
Battery tray	1	E5	Balsa 5 mm
Fuselage cross-brace	3	F18, F19	Lite Ply 3 mm
Bag no. 6
Wing centre section rib	6	W7	Balsa 1.5 mm
Wing centre section rib	2	W8	Balsa 1.5 mm
Wing centre section rib	4	W9	Balsa 1.5 mm
Wing outer panel rib set	2 each	P3–P9, P12–P15	Balsa 1.5 mm
Wing outer panel root rib	2	P2	Balsa 5 mm
Wing outer panel end/Winglet root rib	2+2	P10, P11	Balsa 5 mm
Winglet end rib	2	P16	Balsa 5 mm
Wing centre section trailing edge	1	W17	Balsa 5×20 mm
Wing outer panel trailing edge	1+1	P24R/L	Balsa 5×20 mm
Leading edge 1+2 pieces	1+1+1	W30, P20	Balsa 5×5 mm
Wing centre section D-box sheeting	1	W24	Balsa 1.5 mm
Wing outer panel D-box sheeting	2	P27+P28	Balsa 1.5 mm
Wing centre section main spar	2	W26	Spruce 2×8×690 mm
Wing centre section rear spar	1	W27	Spruce 3×6×690 mm
Wing centre section main spar shear webbing	1+1	W13	Balsa 5 mm
Wing outer panel main spar shear webbing	2	P21	Balsa 5 mm
Wing outer panel main spar	4	P33	Spruce 2×8×380 mm
Wing outer panel rear spar	2	P23	Spruce 3×5×380 mm
Wing outer panel main spar (outer)	4	P34	Balsa 2×8×260 mm
Wing outer panel rear spar (outer)	2	P31	Balsa 3×5×200 mm
Wing gusset set	1	W38, P33	Balsa 2.5 mm
Wing tip	2	P18	Balsa 3 mm
Wing tip reinforcement	2	P19	Balsa 3 mm
Winglet fairing	2	P17	Balsa 10 mm
Airbrake	1+1	W22, W23	Balsa 2.5 mm
Airbrake torsion bar	1	W37	Carbon rod Ø3 mm
Wing outer panel diagonal brace	1	P34	Spruce 3×5×200 mm
Bag no. 7
Fuselage side	1+1	F17L/R	Balsa 2 mm
Fuselage bottom sheeting	1		Balsa 2.5 mm
Fuselage upper sheeting	3		Balsa 2.5 mm
Tail boom fairing	1+1	F11, F12	Balsa 8 mm
Fuselage side reinforcement plate (front)	2	F3	Lite Ply 3 mm
Fuselage side reinforcement plate (rear)	1+1	F5L/R	Lite Ply 3 mm
Servo hatch	1	F16	Balsa 2 mm
Ballast tube	1	F20	Carbon tube Ø10 mm