background image

CEA-309 MEHARI AEROBATICS

.

 

  Instruction Manual.

4

 

8) After both ailerons  are securely hinged,

firmly grasp the wing panel and aileron to
make sure the hinges are securely glued and
cannot be pulled out. Do this by carefully
applying medium pressure, trying to separate
the aileron  from the wing panel. Use caution
not to crush the wing structure.

Work the aileron up and down several
times to “work in” the hinges and
check for proper movement.

Note:

HINGING THE  ELEVATOR.

 

 Glue the rudder hinges in place using the

same techniques used to hinge the ailerons.

 

4) Deflect the aileron and completely

saturate each hinge with thin C/A glue. The
ailerons front surface should lightly contact the
wing during this procedure. Ideally, when the
hinges are glued in place, a 1/64” gap or less
will be maintained throughout the lengh of the
aileron to the wing panel hinge line.

The hinge is constructed of a special
material that allows the C/A to wick
or penetrate and distribute
throughout the hinge, securely
bonding it to the wood structure of
the wing panel and aileron.

Note:

Hinge.

C/A glue.

 

6) Using C/A remover/debonder and a

paper towel, remove any excess C/A glue that
may have accumulated on the wing or in the
aileron hinge area.

 

5) Turn the wing panel over and deflect the

aileron in the opposite direction from the
opposite side. Apply thin C/A glue to each
hinge, making sure that the C/A penetrates into
both the aileron and wing panel.

 

7) Repeat this process with the other wing

panel, securely hinging the aileron in place.

Summary of Contents for Mehari Aerobatics CEA-309

Page 1: ...nge without notice MS 167 ASSEMBLY MANUAL Specifications Wingspan 66 9in 170cm Wingarea 764 2sq in 49 3sqdm Weight 10 6lbs 4 8kg Length 58 7in 149 0cm Engine 0 91 1 2cu in 2 4 stroke Radio 4channelswith6 servos Electricconversion optional ...

Page 2: ... joy This instruction manual is designed to help you build a great flying aeroplane Please read this manual thoroughly before starting assembly of your CEA 309 MEHARI AEROBATICS Use the parts listing below to identify all parts WARNING Please be aware that this aeroplane is not a toy and if assembled or used incorrectly it is capable of causing injury to people or property WHEN YOU FLY THIS AEROPL...

Page 3: ...u properly adhere the hinges in place per the steps that follow using a high quality thin C A glue 2 Remove each hinge from the wing panel and aileron and place a T pin in the center of each hinge Slide each hinge into the aileron until the T pin is snug against the aileron This will help ensure an equal amount of hinge is on either side of the hinge line when the aileron is mounted to the wing pa...

Page 4: ...should lightly contact the wing during this procedure Ideally when the hinges are glued in place a 1 64 gap or less will be maintained throughout the lengh of the aileron to the wing panel hinge line The hinge is constructed of a special material that allows the C A to wick or penetrate and distribute throughout the hinge securely bonding it to the wood structure of the wing panel and aileron Note...

Page 5: ...iberglass control horn 2 Position the Control horn on the Aileron and use 30 minute Epoxy Elevator control horn Install the elevator control horn using the same method as same as the aileron control horns INSTALL ELEVATOR CONTROL HORN Fiberglass control horn Position the Control horn on the Aileron and use 30 minute Epoxy INSTALL RUDDER CONTROL HORN Repeat steps to install the rudder control horn ...

Page 6: ...ing knife cut one length of silicon fuel line Connect one end of the line to the weighted fuel pick up and the other end to the nylon pick up tube ENGINE MOUNT INSTALLATION Rudder control horn 1 Locate the items necessary to install the engine mount included with your model 2 Use four 4x30mm head bolts and four 4mm washers to attach the engine mount rails to the firewall Tighten the screws Make su...

Page 7: ...er assembly into the tank It may be necessary to remove some of the flashing around the tank opening using a modeling knife If flashing is present make sure none falls into the tank You should mark which tube is the vent and which is the fuel pickup when you attach fuel tubing to the tubes in the stopper Once the tank is installed inside the fuselage it may be difficult to determine which is which...

Page 8: ...artment Air should flow through easily INSTALLING THE FUSELAGE SERVOS Throttle servo Elevator servo Rudder servo 1 Install the rubber grommets and brass collets onto the throttle servo Test fit the servo into the aileron servo mount 2 Secure the servos with the screws pro vided with your radio system Because the size of servos differ you may need to adjust the size of the precut open ing in the mo...

Page 9: ...o horn by sliding the connector over the pushrod wire Center the throttle stick and trim and install the servo horn perpendicular to the servo center line Machine screw M4x30mm Pushrod wire 7 Slide the throttle pushrod wire into the tube Position the engine between the mounts Use four M4x30mm machine screws to secure the engine to the mount as shown 5 Slide the pushrod tube in the firewall and gui...

Page 10: ...xle Washer M3 4 Slide the collar to the axle and setscrew the collars to secure the collar to the axle and then slider the wheel on the axle with a drop of oil on the axle so the wheel will spin freely when installed Prepare a second collar and tighten the setscrew using hex wrench to secure the collar to the axle 5 Place the wheel assembly in the wheel pants The threaded portion of the axle will ...

Page 11: ... spot to retain the wheel as shown Repeat steps as above to attach remain ing wheel pants to the landing gear INSTALLING THE MAIN LANDING GEAR TO FUSELAGE 8 The blind nuts for securing the landing gear are already mounted inside the fuselage 9 Using the hardware provided mount the main landing gear to the fuselage 10 Place the fuselage inverted on the workbench in a suitable stand Set the landing ...

Page 12: ... cowl should be positioned so the crankshaft is in nearly the middle of the cowl opening Use the spinner backplate as a guide Hold the cowl firmly in place using pieces of masking tape Because of the size of the cowl it may be nec essary to use a needle valve extension for the high speed needle valve Make this out of suf ficient length 1 5mm wire and install it into the end of the needle valve Sec...

Page 13: ... firewall Using epoxy and balsa stick to secure the motor box to the firewall Please see pictures below Model size 75 91 size models Motor 50mm 310 rev per volt Propeller 14x10 15x8 ESC 60A Lipo Batteries 8 cell 3200mA Recommendation EP parts as shown not included with your model 4mm 4mm 3 Attach the motor to the front of the electric motor box using four 3mm blind nut four M3x15mm hex head bolts ...

Page 14: ...e leads from the speed control to the motor Make sure the leads will not interfere with the operation of the motor Install the spinner backplate propeller and spinner cone The propeller should not touch any part of the spinner cone If it does use a sharp modeling knife and carefully trim away the spinner cone where the propeller comes in contact with it Balsa stick Electric motor Epoxy 140mm Epoxy...

Page 15: ...ace the servo between the mounting blocks and space it from the hatch Use a pencil to mark the mounting hole locations on the blocks 3 Use drill bit in a pin vise to drill the mouting holes in the blocks 4 Apply 2 3 drops of thin C A to each of the mounting holes Allow the C A to cure without using accelerator 6 Secure the servo to the aileron hatch using Phillips screwdriver and the screws provid...

Page 16: ...crew driver to install it with four wood screws 8 A string has been provided in the wing to pull the aileron lead through to the wing root Remove the string from the wing at the servo location and use the tape to attach it to the servo extension lead Pull the lead through the wing and remove the string ...

Page 17: ...e pushed firmly against the front of the slot INSTALLING THE HORIZONTAL STABILIZER 1 Using a ruler and a pen locate the centerline of the horizontal stabilizer at the trail ing edge and place a mark Use a triangle and extend this mark from back to front across the top of the stabilizer Also extend this mark down the back of the trailing edge of the stabilizer Draw center line 2 Using a modeling kn...

Page 18: ...that everything is aligned correctly mix up a generous amount of 30 Minute Epoxy Apply a thin layer to the top and bottom of the stabilizer mounting area and to the stabilizer mounting platform sides in the fuselage Slide the stabilizer in place and realign Double check all of your mea surements once more before the epoxy cures Hold the stabilizer in place with T pins or mask ing tape and remove a...

Page 19: ...e a pen and draw a line on each side of the vertical stabilizer where it meets the top of the fuselage 4 When you are sure that everything is aligned correctly mix up a generous amount of Flash 30 Minute Epoxy Apply a thin layer to the mounting slot and to bottom of the vertical sta bilizer mounting area Apply epoxy to the bot tom and top edges of the filler block and to the lower hinge also Set t...

Page 20: ... each elevator control rod Thread the horns on until they are flush with the ends of the con trol rods Rudder pushrod A C A glue Elevator pushrod MOUNTING THE TALI WHEEL 1 Locate the items for this section of the manual Control horn M2 lock nut Metal clevis Elevator pushrod Control horn M2 lock nut Rudder pushrod Elevator pushrod M2 lock nut M2 clevis 580mm 620mm Elevator pushrod Rudder pushrod 2 ...

Page 21: ...n If you are going to install a pilot figure please use a sanding bar to sand the base of the figure so that it is flat 3 x 30mm 3x25 mm Aluminum tail landing gear 2 1 M2x6mm INSTALLATION PILOT AND CANOPY 1 Locate items necessary to install pilot cockpit panel and canopy 2 A scale pilot is included with this ARF The Seagull Pilot included fitting well to the cockpit or you can order others scale p...

Page 22: ...ound the inside edge of the canopy Position the canopy onto the hatch Use tape to hold the canopy secure until the glue fully cures 2 If all the decals are not precut please use scissors or a sharp hobby knife to cut the decals from the sheet Please be certain the model is clean and free from oily fingerprints and dust Position decal on the model where desired using the photos on the box and aid i...

Page 23: ...arrow like tracking but it may then require more speed for take off and make it more difficult to slow down for landing Moving the balance aft makes the model more agile with a lighter and snappier feel In any case please start at the location we recommend BALANCING 1 It is critical that your airplane be balanced correctly Improper balance will cause your plane to lose control and crash THE CENTER...

Page 24: ... throws should be measured at the widest point of each sur face 2 Turn on the radio system and with the trim tabs on the transmitter in neutral center the control surfaces by making adjustments to the clevises or adjustable servo connectors The servo arms should be centered also INITIAL FLYING AEROBATIC FLYING Do not use the aerobatic settings for initial test flying or sport flying 4 By moving th...

Page 25: ...barrel If it does not flip the servo re versing switch on your transmitter to change the direction E From behind the airplane look at the aileron on the right wing half Move the aileron stick to the right The right aileron should move up and the other aileron should move down If it does not flip the servo re versing switch on your transmitter to change the direction C Check the rudder Looking from...

Reviews: