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9. 

Undercarriage and Tail Wheel Unit Installation 

 

9.1 Undercarriage 

Installation 

 
The vision 3D has been designed with a three-piece undercarriage assembly 
that allows the legs to be removed, for easier transportation and storage of 
the fuselage. This assembly is pictured below: 
 
 
 
 
 
 
 
 
 
 
 
 
 
The fuselage is supplied with captive nuts fitted in place for the 4mm 
undercarriage mounting bolts. Using the 6 mounting bolts fit the undercarriage 
in place. Use red Loctite on the two center bolts for the joining plate; as in the 
event the undercarriage legs are removed these bolts will be left in place.    
 
For now leave the axels, wheels and pants unfitted. 
 

9.2 

Tail Wheel Unit Installation 

 
While the fuselage is still upside down from fitting the undercarriage, fit the tail 
wheel unit using the supplied mounting screws as shown in the picture below. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Add some thin CA to the fixing holes after drilling them and before screwing 
the tail wheel unit and black plastic (rudder) spring retainer in place. 

Summary of Contents for VISION 3D

Page 1: ...INSTRUCTIONS FOR CHIP HYDE VISION 3D Copyright 2004 Chip Hyde Products Chip Hyde Products 999 East Fry Boulevard Suite 316 Sierra Vista Arizona 85635 520 234 4848 www chiphyde com ...

Page 2: ... reason we at Chip Hyde Products Inc are unable to guarantee or provide a contractual agreement with any individual or company that the model you have made will function correctly and safely You as operator of the model must rely upon your own expertise and judgment in acquiring and operating this model An R C aircraft is not a toy If misused it can cause serious bodily harm and damage to property...

Page 3: ...ition Module 18 8 3 Fitting the Exhaust and Fibreglass Pipe Tunnel 18 9 Undercarriage and Tail Wheel Unit Installation 20 9 1 Undercarriage Installation 20 9 2 Tail Wheel Unit Installation 20 10 Fin Rudder and Rudder Servo linkage Installation 21 10 1 Fin Preparation and Gluing 21 10 2 Fitting and Hinging the Rudder 22 10 3 Rudder Servo and Control Linkage Installation 22 11 Horizontal Stabilizers...

Page 4: ... less you will need to remove The Vision 3D is designed for gas motors in the 50 cc category The recommended motor is the DA 50 that is shown in the assembly instructions The final choice of power plant is left up to the builder A computer radio is recommended for the Vision 3D This is primarily because then the Pilot can take advantage of the full capabilities of this model using the various mixi...

Page 5: ...4 Kit Contents The contents of the Vision 3D shipping box should be as follows ...

Page 6: ...nted fibreglass cowl 1 Fuselage 1 Fuselage hatch 1 Canopy 1 Light weight aluminium undercarriage in three pieces 4 retaining bolts 2 Painted fibreglass wheel pants 6 Anodised light weight aluminium control horns with integral bearings and fixing screws 8 Black Plastic metal pinned clevises 1 Tail wheel unit with 3 mounting screws spring and plastic spring retainer 1 Lite ply fuel tank mounting pla...

Page 7: ...ts for all linkages 6 4 40 pin clevises 6 4 40 ball links 2 Aileron servos 130 oz inch WHEN USING ONE SERVO PER AILERON 4 Aileron servos 60 oz inch WHEN USING TWO SERVOS PER AILERON 1 Rudder servo 200 oz inch 2 Elevator servos 130 oz inch 1 Throttle Servo Extension Leads 2 x for in board aileron servos approx 16 20 inches in length 2 x for out board aileron servos approx 40 inches in length WHEN U...

Page 8: ...ile Electric drill and a selection of drill bits 3mm tap 4mm tap Philips screwdriver small Pliers Allen wrenches keys both USA and Metric A cordless drill Drill sets both USA and Metric Dremel sanding drum tool Sand paper A thin marker pen 1 32 line thickness or thinner 5 3 Adhesives Needed to Complete the Vision 3D Thin CA Medium CA Slow CA CA kicker optional 20 minute Epoxy ...

Page 9: ...t exhaustive as it is assumed that the builder will have experience of the basics required to assemble a radio controlled model aeroplane We strongly suggest that the builder obtains a foam cradle to hold the fuselage during the assembly and fitting out process This will provide support and protect the covering from becoming damaged or marked when sitting on a workbench surface We also recommend t...

Page 10: ... few times along the centerline and gently compress the hinge line fold with a pair of pliers to help form a good hinge point Next use two pins to center each hinge as pictured below The pins are pushed through the hinge centerline Now fit an aileron leaving the hinge pins in place to its corresponding wing panel Ensure that all 7 hinges have been fitted There should be no gap between the leading ...

Page 11: ...ick into each hinge We suggest adding CA to the inner and outer most hinges first as this will help ensure that the aileron is properly aligned with the wing itself and avoid tapering wing aileron gaps Repeat the above process for the second wing panel and aileron If available use Acetone dripped onto a rag to wipe away any excess CA that happens to run Use denatured alcohol to clean up later ...

Page 12: ...ion that will not pull apart once installed Shrinking a 1inch length of heat shrink tubing over the joined connectors is a particularly good solution Pull cords are fitted to the outer servo mounting points These are only used when fitting two aileron servos per wing panel When using a single servo hold the wing panel vertically with the face of the wing tip pointing upwards Now feed the end of th...

Page 13: ... BALL BEARING CONTROL HORNS BUY SPREADING THE CLEVIS WITH A FLAT TIP SCREW DRIVER THAT IS NOT THE WAY THEY ARE DESIGNED TO WORK UNSCREW THE PHILLIPS HEAD SCREW PIN AND REMOVE IT COMPLETELY FROM THE CLEVIS ITSELF THEN SLIP THE HORN TROUGH THE EMPTY SLOT AND REINSTALLL THE SCREW IN THE CLEVIS NOT FOLLOWING THESE INSTRUCTIONS CAN CAUSE THE PLASTIC THE CLEVIS IS MADE FROM TO FATIGUE AND FAILURES IN TH...

Page 14: ...ill stop large servo arm movements from straining the aileron ball bearing control horn and clevis Aileron servo MARK CONTROL HORN CENTRE LINE HERE Control rod centre line 90 90 Now place a ballbearing control horn onto the plywood triangular mounting plate that is installed into the surface of the aileron The center of the horn should be over the centerline you have just marked facing down this l...

Page 15: ...xing of the control horn You may now fit the aileron control rod The supplied metal pin clevises are used to connect to the ball bearing control horn and we recommend ball links for attachment to the servo horn Now repeat the above steps on the opposite wing panel In the event you are fitting dual aileron servos obviously the above steps will have to be repeated 3 more time to complete both wings ...

Page 16: ...DA50R standoffs The template positions the motor with the cylinder head at about the 7 O clock position This will allow a pitts style muffler or header for a pipe to be fitted with minimal cutting required in the side of the cowling to clear these items Now drill the standoff mounting holes and remove the section of firewall that is required to clear the carburetor It is important that 1 inch squa...

Page 17: ...e fuel tube line from the tank to the carburetor and a filler tube line to the tank Remove the motor and drill the required holes for the linkages and fuel tubing Fuel proof the firewall and other exposed wood around the underbelly area Once dry securely re mount the motor Use large diameter washers on the bolts that pass through the firewall into the standoffs again to stop the wood being compres...

Page 18: ...n specifically designed to fit the Vision 3D We advise that pipe mufflers such as the MTW TD75 are supported at both ends Because the manifold is non flexible it is advisable to install the pipe on a flexible mounting system front rear of the silencer The Dave Brown Hush clamps work well but have to be insulated from the heat of the Gas engine exhaust You will have to find a larger o ring from a m...

Page 19: ...Hush clamp with silicon insulation as described for the front hush clamp installation The fibreglass pipe tunnel may now be fitted ensure that any holes necessary for the installation of the pipe mounts are already drilled to ensure a easy installation This can be screwed in place or glued with 20 minute epoxy and micro balloons The section of the tunnel over the undercarriage mounting plate betwe...

Page 20: ... 6 mounting bolts fit the undercarriage in place Use red Loctite on the two center bolts for the joining plate as in the event the undercarriage legs are removed these bolts will be left in place For now leave the axels wheels and pants unfitted 9 2 Tail Wheel Unit Installation While the fuselage is still upside down from fitting the undercarriage fit the tail wheel unit using the supplied mountin...

Page 21: ...place Next remove the covering from the sides of the fin post slide the fin temporarily onto the fuselage with a ball point pen draw onto the top of the fuselage around the base of the fin Remove the fin from the fuselage carefully with a very sharp scalpel remove the film from where the fin will be glued to the fuselage this will greatly increase the strength of the fin fuselage joint pictured on...

Page 22: ...dder To complete the fin and rudder installation fit hinge the rudder in place This should be done following the same steps used for the ailerons fitting the rudder in place and then applying CA to the hinges 10 3 Rudder Servo and Control Linkage Installation Remove the covering at the rear of the fuselage over the opening for the rudder servo mounting point Take one of the lite ply servo mounting...

Page 23: ...fitting the rudder servo fit the ball bearing rudder control horn and the rudder control rod Remember to align the horn so that it is set at 90 degrees to the hinge line and positioned over the hardwood mounting plate in the rudder surface Tape the rudder into the neutral position while doing this Ensure that the center of the rudder control horn ball bearing is positioned over the rudder hinge li...

Page 24: ...ir mounting points including rectangles of material under the rear servo mounting points for the Lite ply mounting plates Next glue the Lite ply plates in place with medium CA and then drill and screw the servos into position Remember to fit the 28 inch extension leads and tape or heat shrink the connectors together Elevator servo fitted in position with mounting plate 11 2 Fitting and Hinging the...

Page 25: ... After adding the hardwood plugs to the carbon tube insert it and the aluminum anti rotation pin into the fuselage as shown in the picture below Now fit the stabilizer halves and turn the fuselage upside down The use of a foam cradle and a second pair of hands is recommended to support the fuselage stabilizers during this next set of steps Locate the hard point in the underside of the stabilizer s...

Page 26: ...OSITION THIS MAY REQUIRE ADUSTING THEIR NEUTRAL POSITION USING A COMPUTERISED TRANSMITTER IF THE HORNS ARE FITTED IN DIFFERENT PLACES THE MOVEMENTS OF THE ELEVATORS WILL NOT BE MATCHED DJUSTMENTS ON THE TRANSMITTER MAY NOT BE ABLE TO FULLY COMPENSATE FOR THIS THROUGHOUT THE FULL RANGE OF THE ELEVATOR MOVEMENT Once you have completed fitting the horns and linkages please disconnect the control rods...

Page 27: ... to provide a mounting system within the fuselage These items are pictured below ount Aluminium anti rotation pin Wooden pin retainer boss m Aluminium pin retainer boss 12 2 Fitting the Wing Retainers into the Fuselage Take a sharp knife and carefully cut away the fuselage covering material over the openings for the wing tube servo leads and wing retaining pins two per wing half as pictured below ...

Page 28: ...the wing tube and the large mounts INFRONT of the wing tube Small mount fitted behind wing tube Large mount fitted in front of wing tube Using a piece of coarse sandpaper or a file heavily key the circular side faces of the aluminium pin retainer bosses Now glue the pin retainer bosses with the big flat head screws facing upwards into their wooden mounts using 20 minute epoxy Take care to ensure t...

Page 29: ... the large flat head screws from each pin retaining boss and fit the wings Ensure that when the wing halves are fitted up against the fuselage sides the narrow V section at the end of each anti rotation pin is in the centre of its retaining boss If this in not the case remove the wings and adjust the position of the V section by screwing the pins in or out Now remove the wings from the model and p...

Page 30: ...re pressing permanently pressing into place The subsequent unsightly bear wood that shows through the canopy can then be disguised with red vinyl trim to make a very neat canopy installation as shown in the picture below g Battery indicator Tape used to secure canopy in place Tapped hole in locatin tongue Lastly fit and tape the fuselage hatch in place and then drill through the fuselage sides int...

Page 31: ...tank from excessive motor vibration Now CA in place a pair of Velcro straps to secure the tank to the mounting plate Now glue the mounting plate into the fuselage using 20 minute epoxy Be sure to glue the plate in place with the foam and straps facing upwards Now fit the tank to the mounting plate and plumb in the fuel lines between the tank and the engine ...

Page 32: ... prop bolt these items into place With the spinner back plate now dictating the amount of side down thrust align the cowling with the spinner allow at least 1 16 gap between the back of the back plate to the front of the cowling so the two have no chance of rubbing together during operation Once happy with the cowling fit tape it onto the fuselage Drill through the cowling just below the side chee...

Page 33: ...ls to the undercarriage legs and then make a small cut out in the pants to clear the hex shaped end face of each axel Fit the wheels to the axels and dry fit the pants over the wheels so that they are positioned in line with the fuselage centre line Carefully drill through the fixing hole in each undercarriage leg into each pant Open each of the Holes out to accept a 3mm captive nut which will be ...

Page 34: ...lation 17 1 Receiver Throttle Servo and Choke Servo Installation Fit the throttle servo choke Servo and receiver as shown on the picture below Be sure to mount the receiver on a thick layer of foam to protect it against motor vibrations ...

Page 35: ... been obtained We have found that if the batteries are positioned above the tank in the forward decking the centre of gravity should be approximately correct Using foam plenty of foam to protect the batteries against motor vibration mount them in the required position for the correct centre of gravity Now remove the wings and stabilizers and move them away from your workbench to avoid damage while...

Page 36: ... heat shrink tubing Ensure that all radio gear leads are restricted from moving about within the airframe by using tyraps and or foam blocks This will stop the leads chafing in flight Ensure that all fixing bolts have been screwed in place with Loctite Ensure that all fixing threaded holes drilled tapped into the airframe have been strengthened with thin or medium CA Range check the model with the...

Page 37: ...rons Measured at trailing edge 7 8 40 As much as possible 80 Elevators Measured at leading edge of counterbalance 7 8 40 As much as possible 80 Rudder Measured at leading edge of counterbalance 1 20 As much as possible 50 Thank you again for choosing to purchase the Vision 3D we know you will like it Chip Hyde ...

Page 38: ...Vision 3D Engine mount template Scale 1 1 ...

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