T-27 Tucano 20cc 1.2 2022 www.juniaer.com.br A traditional 20cc sport/scale category model airplane! Lots of incredible detail in this classic model airplane with scale, acrobatic and sport flight capabilities, bringing precise and smooth performance for the intermediate to advanced level model airplane pilot.
T-27 Tucano 20cc 1.2 2022 www.juniaer.com.br Assembly instructions manual and guideline T-27 Tucano 20cc Index Presentation................................................................................. Important warnings...................................................................... Specifications................................................................................ Disclaimer..................................................................................... Kit contents............
T-27 Tucano 20cc 1.2 2022 www.juniaer.com.br This is the T-27 Tucano 20cc ARF Juniaer, prepared for retracts installation, with flaps, with an exquisite finishing and many painting schemes available, very realistic and all detailed in relief, with rivets, antennas, side door with hinge and lock (not installed), panel lines, compartments, pitot tubes replicas, landing gear doors, paneled cockpit and clear canopy. Engine cowling in 2 parts with exhaust replicas.
T-27 Tucano 20cc 1.2 2022 www.juniaer.com.br This is not a beginner´s model aircraft, despite having a very stable flight performance and low speed stall point, it is a complex model with many mechanical and electronic devices and must be assembled and flown by someone with experience and knowledge in the area of model airplanes setup and flying. Never consider this product as a toy.
T-27 Tucano 20cc 1.2 2022 www.juniaer.com.br DISCLAIMER In Brazil, model airplane activity for recreational purposes is regulated by ANAC (National Civil Aviation Agency) through the Special Brazilian Civil Aviation Regulation RBAC-E No. 94 that entered into force on July 1, 2021, or subsequent substitutive document. Important information is contained in subparts E94.3 Definitions; E94.103 General rules for the operation of unmanned aircraft; E94.301 Registration and cadastre and E94.
T-27 Tucano 20cc 1.2 2022 www.juniaer.com.br Gas burning 2 cycle engine installation: Suggestion: DLE-20RA engine – perfect fit with stock muffler. Before installing your gas burning engine, please read the manufacturer's manual and all parts assembly recommendations carefully including exhaust, standoffs, ignition, installation, operation and maintenance. The information contained in this manual is extremely important.
T-27 Tucano 20cc 1.2 2022 www.juniaer.com.br Place the engine mount in inverted position (upside down) with the 4 10-32 x 1 ¼” screws with washers inside the holes through the square 10mm plywood part and the firewall until the inner side at the fuselage. Thread the 10-32 blind nuts on the 4 screws and tighten until the blind nuts gets stared at the firewall by the inner side of the fuselage.
T-27 Tucano 20cc 1.2 2022 www.juniaer.com.br Above: installation of the DLE-20RA engine with Great Planes 60-120 adjustable engine mount (left) and installation of the engine throttle and choke pushrods (right). The engine ignition module must be installed immediately behind the firewall and the spark plug wire passed through the firewall from the lower left side (viewed from the front) through the 30mm hole.
T-27 Tucano 20cc 1.2 2022 www.juniaer.com.br 2 cycle glow engine installation: Suggestion: OS 95 AX (left) and Slimline inverted pitts muffler (right). Before installing your 2-stroke glow engine, please carefully read the manufacturer's manual and all parts assembly recommendations including muffler, engine mount, installation, operation and maintenance. The information contained in this manual is extremely important.
T-27 Tucano 20cc 1.2 2022 www.juniaer.com.br Place the engine mount in inverted position (upside down) with the 4 10-32 x 1 ¼” screws with washers inside the holes through the square 10mm plywood part and the firewall until the inner side at the fuselage. Thread the 10-32 blind nuts on the 4 screws and tighten until the blind nuts gets stared at the firewall by the inner side of the fuselage.
T-27 Tucano 20cc 1.2 2022 www.juniaer.com.br Above: OS 95AX with inverted pitts muffler installation. 4 cycle glow engine installation: Suggestions: OS 120 SIII with fuel pump (left) and Saito 125A Golden Knight (right). Before installing your 2-stroke glow engine, please carefully read the manufacturer's manual and all parts assembly recommendations including muffler, engine mount, installation, operation and maintenance. The information contained in this manual is extremely important.
T-27 Tucano 20cc 1.2 2022 www.juniaer.com.br Above: Great Planes adjustable engine mount with screws, washers and blind nuts (left) and original drilling template provided with the engine mount (right). Place the engine mount in inverted position (upside down) with the 4 10-32 x 1 ¼” screws with washers inside the holes in the firewall until the inner side at the fuselage.
T-27 Tucano 20cc 1.2 2022 www.juniaer.com.br Screw the 4 10-32 x 1 ¼” screws with the engine mount into the blind nuts through the firewall, ensuring a solid, firm fixation with parallel alignment between the 4 screws. It is advisable to attach the throttle control pushrod to the engine before definitively secure it to the engine mount. We recommend DUBRO Laser Pushrods (DUB 500 or DUB 501) as they are flexible and easy to install.
T-27 Tucano 20cc 1.2 2022 www.juniaer.com.br Electric motor installation: Suggestions: RIMFIRE 1.20 Great Planes and ROTOMAX 1.20 Turnigy. Before installing your electric motor, please carefully read the manufacturer's manual and all parts assembly recommendations including speed control, engine mount, installation, operation and maintenance. The information contained in this manual is extremely important.
T-27 Tucano 20cc 1.2 2022 www.juniaer.com.br The speed control (ESC) can be installed inside the motor mount. Very important: all motor and speed control wires must not, under any circumstances, have contact with parts of the motor and speed control that are very hot during and after operation. We recommend fixing them to the mount with nylon cable ties firmly and without the possibility of moving them so that they are routed inside the model aircraft through the hole in the firewall.
T-27 Tucano 20cc 1.2 2022 www.juniaer.com.br Engine cowling installation The engine cowling is supplied in 2 parts (upper and lower). The parts fit perfectly with each other and on the fuselage, providing correct alignment according to the center between the mounting holes of the engine mounts and the angles of the firewall, for both gasoline/glow engines and electric motors.
T-27 Tucano 20cc 1.2 2022 www.juniaer.com.br Above: spinner/cowling parallel alignment. In the case of gasoline and glow engines, an efficient flow of cold air is recommended for engine cooling. The air inlet in the lower part of the cowling is sufficient for the air flow, however it is necessary to make room for the air outlet, which must be done in the lower rear part of the cowling, taking advantage of the holes for the engine exhaust pipes.
T-27 Tucano 20cc 1.2 2022 www.juniaer.com.br We offer custom-made wooden propellers for the T-27 Tucano 20cc Juniaer (sold separately). Always consult the engine instruction manual to decide on the size and pitch of a propeller and consider the desired performance according to the characteristics of your model airplane.
T-27 Tucano 20cc 1.2 2022 www.juniaer.com.br Fuel tank installation To install the fuel tank, first fix the front plywood tray supplied with the model airplane with 30 to 40 minutes epoxy glue on the wooden rails inside the fuselage. The tray has openings for fixing the tank and batteries with nylon or Velcro clamps.
T-27 Tucano 20cc 1.2 2022 www.juniaer.com.br Above: Typical fuel tank position(left) and throttle servo position with fuel tank to the right side (center). Aluminum fuelers (right). Above: internal fuel tank connections (left), safety clips for connections (center) and fuel filter with safety clips on connections(right). Above: fuel tank assembly scheme with 1 clunk, vent line and third line for fueling (left) and with 2 clunks (right).
T-27 Tucano 20cc 1.2 2022 www.juniaer.com.br Servos, linkage, hard points and commands In case of using gas burning engine: All servos must be metal geared (not included). 6 standard servos with 5Kg-cm or more torque for flight command surfaces and throttle: 2 for ailerons, 2 for flaps, 1 for rudder and 1 for throttle. Suggestions: SAVOX SAVSC0252MG, SAVOX SAVSC0254MG, SPEKTRUM SPMSA6180. And 2 mini servos with 4kg-cm or more torque for elevators. Suggestions: SAVOX SAVSV1250MG, SPEKTRUM SPMSA5040.
T-27 Tucano 20cc 1.2 2022 www.juniaer.com.br Above: mini servo sizes dimensions (left) e examples of indicated mini servos (right). WE DO NOT RECOMMEND INTERNAL LINKAGE INSTALLATION BECAUSE IT DAMAGES IMPORTANT STRUCTURAL PARTS THAT MAY RESULT IN ACCIDENTS AND TOTAL OR PARTIAL LOSS OF THE MODEL AIRPLANE, OFFERING RISKS TO PEOPLE AND PROPERTIES AROUND THE FLYING AREA.
T-27 Tucano 20cc 1.2 2022 www.juniaer.com.br The model airplane has structural reinforcements of high rigidity for installation of the ailerons, flaps, elevators and rudder controls control horns. These points measure 30mm x 30mm (1,18 x 1,18 inches), are positioned in strategic locations and must be identified according to the instructions below. If you want to modify or adapt equipment that requires modifications to the original design, never do this on your own.
T-27 Tucano 20cc 1.2 2022 www.juniaer.com.br Above: thread and extensions passing process on wing (left) and connected and locked servos (right). Before definitively screwing the servos, apply a drop of medium CA glue or 5 minutes epoxy glue to each hole in the ribs where they will be fixed. To screw the flap and aileron servos onto the internal ribs of the wing, use a short screwdriver to keep the screw angle at 90º in relation to the ribs, as there is little internal space.
T-27 Tucano 20cc 1.2 2022 www.juniaer.com.br Above: right wing half with open aileron and flap servos compartment covers showing servo fixation points at the ribs. Above: aileron and flap servos installed on the ribs for attachment (left) and position of the horns, servo arms and aileron and flap controls (right). Above: Location of servo access covers, servo arms, horns, and aileron and flap linkage.
T-27 Tucano 20cc 1.2 2022 www.juniaer.com.br To assembly the two wing halves to the fuselage, an aluminum tube with an external diameter of 3/4” (19.05mm) x 1mm thick x 648mm long is used. The wing/fuselage assembly is factory preset and uses 2 1/4" x 3/4" allen screws and 2 washers (supplied with the kit), 1 screw with washer on each side. Insert the tube into the fuselage until it is centered.
T-27 Tucano 20cc 1.2 2022 www.juniaer.com.br Above: Location of servo access covers and position of elevator horns. Before definitively screwing the mini servos, apply a drop of medium CA glue or epoxy to each hole in the ribs where they will be fixed. To screw the mini elevator servos to the inner ribs of the stabilizer, use a short wrench to keep the screw angle at 90º in relation to the ribs, as there is little internal space.
T-27 Tucano 20cc 1.2 2022 www.juniaer.com.br To assembly the stabilizer to the fuselage it is necessary to permanently glue it with 30 to 40 minutes epoxy glue. This procedure must be done very carefully as it is a very important structural part of the model aircraft.
T-27 Tucano 20cc 1.2 2022 www.juniaer.com.br Rudder: 1 double horn required (with command for both sides) with a total length between 60mm to 70mm. The servo arm must be double (with command to both sides) with a total length between 30mm to 36mm. The horn reinforcements are centered with the fuselage pushrod outlets, through which the steel cables pass to drive the rudder to both sides.
T-27 Tucano 20cc 1.2 2022 www.juniaer.com.
T-27 Tucano 20cc 1.2 2022 www.juniaer.com.br Retracts installation (105 degree on front and 85 degree on mains) The T-27 Tucano 20cc Juniaer is prepared for easy installation of retracts, which can be pneumatic (actuated by compressed air) or electric (actuated by electric motors). The photos above show the measurements of the retracts bases and compartments.
T-27 Tucano 20cc 1.2 2022 www.juniaer.com.
T-27 Tucano 20cc 1.2 2022 www.juniaer.com.br Johnny Simões Scale/Competition retract set Made from drawn and ground 316 stainless steel Aluminum magnesium alloy die-cast forks Rectified steel shock absorbers Supplied with 90º machines, with paint and wheels Wheel axles: 5mm Total weight: 720g JP ER-120 V-2 controller with gear door sequencer Scale landing fight and lens with 3.
T-27 Tucano 20cc 1.2 2022 www.juniaer.com.br The electronic controller is supplied with landing gear doors sequencer in version 2, with the same opening and closing routine necessary for the T-27 Tucano (see pages 36 and 39). It has 2 servo access doors via standard 3-way servo plugs (+ / - / signal) and 3 retracts access ports (main and front) via 2-way JST plugs (+ and -). The controller requires a battery to power the retracts system. The manufacturer recommends using a good quality LiPo 2S 7.
T-27 Tucano 20cc 1.2 2022 www.juniaer.com.br JP retract set with electromagnetic brakes CNC machined. Aluminum cubes and bearings 65mm wheels on mains and 50mm wheel on front. Smooth acting oleo shock absorbers. Supplied with 90-degree machines, no painting. Perfect fit for your T-27 Tucano 20cc Juniaer mounting dimensions. Electromagnetic brakes on the 2 main wheels. Includes 2 front wheel control arms and metal pull-pull controls, 1 replacement bushing for the front landing gear and 1 allen wrench.
T-27 Tucano 20cc 1.2 2022 www.juniaer.com.br The electronic controller is supplied with electromagnetic brakes controller and landing gear doors sequencer in version 2, with the same opening and closing routine necessary for the T-27 Tucano (see page 36 and 39). It has 2 servo access doors via standard 3-way servo plugs (+ / - / signal) and 3 retracts access ports (main and front) via 2-way JST plugs (+ and -). The controller requires a battery to power the retracts system.
T-27 Tucano 20cc 1.2 2022 www.juniaer.com.br Above: JR ER-120 V2 controller installation diagram. BE SURE TO PLUG THE BATTERY TO THE CONTROLLER IN CORRECT POLARITY (+ RED WIRE AND – BLACK WIRE). IF POLARITY IS INVERTED THE CONTROLLER WILL BURN AND BE UNUSABLE, AND THE PRODUCT WARRANTY WILL BE LOST. USE A RELIABLE JST PLUG IN YOUR BATTERY WITH ADEQUATE FITTING WITH NO POSSIBILITY OF BEING PLUGGED INVERTED.
T-27 Tucano 20cc 1.2 2022 www.juniaer.com.br There are other retracts options with suitable specifications, but their parts are purchased separately, adaptations are required for installation and require more assembly time, requiring specialized service. The front wheel steering for taxi (left / right) can be done through an independent servo or with the same rudder servo.
T-27 Tucano 20cc 1.2 2022 www.juniaer.com.br Above: Dubro hinges installed Above: Micro servo installed with on the inner door and micro linkage and horn for actuation of servo position. the mechanism. Above: Hinges on door and micro servo installed with linkage. The external doors are attached to the wing in the same way as the inner doors, with hinges, and to the main landing gear legs with hinged brackets that open and close the doors.
T-27 Tucano 20cc 1.2 2022 www.juniaer.com.br Front landing gear doors Cut the 2 front landing gear doors from the single piece provided as shown in the photos below, with a sharp knife or scissors. Test the placement of the doors with masking tape. The front doors must be glued to the fuselage with epoxy glue for 30 to 40 minutes, using 2 nylon hinges (We recommend DUBRO DUB 116) on each door or 2 compartment door hinges. We recommend ROBART (ROBQ 350).
T-27 Tucano 20cc 1.2 2022 www.juniaer.com.br C.G. (Center of Gravity) The C.G. range of the model airplane is between 95 mm and 105 mm from the leading edge of the wing and the C.G. point is 100 mm (3 15/16”) from the leading edge, measured at the root of the wing. To check the balance, hold the model in the inverted position by the wing root part at the indicated point, without fuel. Retracts must be retracted. The model airplane must have a nose weight tendency.
T-27 Tucano 20cc 1.2 2022 www.juniaer.com.br We offer (sold separately) the custom scale lighting kit for the T-27 Tucano 20cc Juniaer, in version Plenus Lux (standard). PLENUS LUX - Specifications: Voltage: 12v Recommendations: Li-Po 3S 11.1V 850 mAh to 1350mAh. Receiver independent power supply, exclusive battery for the system. Current consumption: 400ma - peaks of 730ma Minimum recommendation: li-po 3S 650ma 5c Activation: Activated by PWM-Pulse Width Modulation, connected to a receiver channel.
T-27 Tucano 20cc 1.2 2022 www.juniaer.com.br It is necessary to connect the circuit to a receiver channel controlled by a 3-position switch on the radio. When the system is connected to the battery, the circuit performs a self-test by turning on all the lights for 1 second, indicating its perfect functioning.
T-27 Tucano 20cc 1.2 2022 www.juniaer.com.br tape or glue residue. We recommend ZAP Formula 560 (PT-56). Never use CC glue to glue these parts, as the evaporated gases stain and damage the clear plastic material. Above: Parts cut from set. Above: desired parts shape.
T-27 Tucano 20cc 1.2 2022 www.juniaer.com.br Fuselage on-board equipment The T-27 Tucano 20cc Juniaer has anough internal space to accommodate on-board equipment such as receiver, retractable controller, light controller, landing gear door sequencer, among others. We do not recommend the installation of very large or heavy trays at the rear of the fuselage when gas burning engine is used for correct C.G. balance. Below are some examples of assemblies and installations of this equipment.
T-27 Tucano 20cc 1.2 2022 www.juniaer.com.br Above: equippment installation examples in the fuselage interior on electric version and Li-Po batteries. Fuselage side door Your T-27 Tucano 20cc Juniaer has a side door where the luggage compartment is on the aircraft. The door must be installed with a hinge and lock (supplied with the kit). Inside there is enough space to easily install on / off switches, air supply, pressure gauges, tachometer, access to charge batteries, voltage monitors, etc.
T-27 Tucano 20cc 1.2 2022 www.juniaer.com.br To glue the instruments panels adhesives, use the drawings below as reference: Above: front instruments panel (left) and rear instruments panel (right) T-27 Tucano. Juniaer´s pilot busts We offer (sold separately) custom made pilot busts for your T-27 Tucano 20cc Juniaer, made of fiberglass with epoxy resin, low weight, painted and varnished according to the painting scheme for greater realism. Base width: 7cm; base length: 3.7cm; height: 6,5cm and weight: 17g.
T-27 Tucano 20cc 1.2 2022 www.juniaer.com.br We offer (sold separately) custom cockpits for your T-27 Tucano 20cc Juniaer, extremely detailed and realistic, ready for installation to replace the stock cockpit. Available in shallow cockpit, for pilot’s busts.
T-27 Tucano 20cc 1.2 2022 www.juniaer.com.br The clear canopy is supplied in a thermoformed part. Cut out the canopy in the correct shape with very sharp scissors, remove the back and front following the embossed reference line. Finish with a fine sandpaper 280 to 320. Sand the inner edges of the canopy without excess sand and at the contact points of the canopy frame where the canopy will be glued for better adhesion.
T-27 Tucano 20cc 1.2 2022 www.juniaer.com.br Above: correct desired shape of the clear canopy after cutting. Above: position of the canopy frame on the fuselage and fixing in place with adhesive tape all around. Above: Sand the contact area of the frame to increase glue adhesion (left) and apply white glue to the entire contact area (right).
T-27 Tucano 20cc 1.2 2022 www.juniaer.com.br To make the canopy / frame set with side opening there are 2 hinge options: internal or external. The opening is made from left to right, so the hinges must be attached to the right side of the fuselage. With internal hinges, 2 door/compartments hinges are used. We recommend ROBART (ROBQ 350). The attachment locations of the hinges on the canopy frame must be on the same line to allow opening and closing without friction or deformation (see photos below).
T-27 Tucano 20cc 1.2 2022 www.juniaer.com.br To lock the canopy / frame assembly in the closed position on the fuselage, use a piece of horn or servo arm with a hole to be fixed on the canopy frame and a spring-loaded lock as shown in the photos below. You can take advantage of the location of the replica of the canopy opening lever (see photos below).
T-27 Tucano 20cc 1.2 2022 www.juniaer.com.br T-27 Tucano 20cc transport and protection covers We provide (sold separately) protective and transport covers made of durable padded material. Wing covers with zipers and handles, with wing tube housing. Stabilizer covers with zipper and fuselage cover with velcro. Custom-made for your T-27 Tucano 20cc Juniaer. https://www.juniaer.com.br/ www.facebook.com/asaseases.juniaer www.instagram.com/juniaermodelismo/ twitter.com/Juniaer e-mail: juniaer@hotmail.
