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3DHobbyShop.com
AJ Slick 89" Assembly Manual
Thank you for purchasing this 3DHobbyShop ARF RC aircraft. If you have any issues, questions,
concerns or problems during assembly, please contact our tech department at:
Info@3DHobbyShop.com
or 1-830-990-6978 10am-5pm Central M-F
SAFETY in Assembly
During assembly of this aircraft, you will be asked to use sharp knives, hot irons, and hobby adhesives.
Please follow all safety procedures recommended by the manufacturers of the products you use, and
always follow these important guidelines:
ALWAYS protect your eyes when working with adhesives, knives, or tools, especially power tools. Safety
glasses are the best way to protect your eyes.
ALWAYS protect your body, especially your hands and fingers when using adhesives, knives, or tools,
especially power tools. Do not cut toward exposed skin with hobby knives. Do not place hobby knives on
tables or benches where they can roll off or be knocked off.
ALWAYS have a first-aid kit handy when working with adhesives, knives, or tools, especially power tools.
ALWAYS keep hobby equipment and supplies out of the reach of children.
SAFETY in Flying
ALWAYS fly your aircraft in a safe area, away from spectators.
ALWAYS fly your aircraft in a safe manner, within your control.
NEVER fly too close to yourself.
ALWAYS wear eye protection while operating your model aircraft.
ALWAYS keep your hands and body clear of propellers.
ALWAYS observe lipoly battery safety procedures.
ALWAYS handle gasoline in a safe manner.
ALWAYS perform a ground test and range check of your radio system before flying.
REQUIRED ITEMS
Drill and drill bits
30 Minute Epoxy Glue (NOT 5-minute Epoxy)
Hobby Knife
Phillips Screwdriver
Set Metric Allen Wrenches
Small Pliers
Wire Cutters
Rubbing Alcohol
Paper Towels
Blue Loctite thread-locking adhesive
Dremel-type rotary tool
Small adjustable wrench or wrench set
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Summary of Contents for 3DHobbyShop.com AJ Slick
- Page 1 3DHobbyShop.com AJ Slick 89” Assembly Manual Thank you for purchasing this 3DHobbyShop ARF RC aircraft. If you have any issues, questions, concerns or problems during assembly, please contact our tech department at: Info@3DHobbyShop.com or 1-830-990-6978 10am-5pm Central M-F SAFETY in Assembly During assembly of this aircraft, you will be asked to use sharp knives, hot irons, and hobby adhesives.
- Page 2 IMPORTANT NOTE: 3DHS Recommends ONLY High-Torque, Digital, Metal-gear Servos for this aircraft. Suitable part numbers include Hitec HS-7955TG, JR 8611A, and JR 8711A. DO NOT attempt to use nylon-geared servos on this airplane. THIS AIRCRAFT IS NOT A TOY! IT IS A HIGH PERFORMANCE AEROBATIC AIRCRAFT AND IMPROPER SETUP AND/OR USE COULD RESULT INJURY OR DEATH.
- Page 3 Apply 30 minute Epoxy glue to the inside of the holes in one surface. In the following photo, we are using the end of a nylon zip-tie to apply the epoxy inside the hole. Insert the hinge points into one side, and carefully align them so that they sit perfectly centered in their holes.
- Page 4 Clean up any excess epoxy which comes out of the holes with a paper towel and rubbing alcohol. Make sure the hinge points are properly centered and aligned, and set the surface aside to allow the glue to cure. Once the glue has cured, repeat the procedure to install the opposite surface. Push the other surface up tight against the first one;...
- Page 5 Landing gear User blue loctite to lock all of the screws on the tailwheel assembly and re-tighten them. Attach the tailwheel to the bottom of the fuse as shown with 3 x 3mm screws and washers. Use blue loctite on these screws. The main axles must be shortened .25”...
- Page 6 Insert the wheels and axles into the wheel pants and attach to the main landing gear with the nylock nuts. Install two Phillips-head screws through the landing gear and into the pants as shown. Tighten the 3mm hex screws inside the fuselage that hold the aluminum angle brackets to the tunnel sides.
- Page 7 Attach the main gear to the fuselage using 4 x 4mm screws, washers, and locknuts. Attach the cover plate over the landing gear screws using epoxy glue or silicone adhesive. Elevator and Aileron Control Horns Your Slick features phenolic control horns. The slots for the horns are pre-cut into all of the control surfaces.
- Page 8 4. Using a pencil o marker, mark around the outside of the square base of the control horn. 5. Remove the horn and use the soldering iron to trim the covering just inside the square mark you made with the pencil.
- Page 9 6. The control horns will need to be trimmed as shown. Use a dremel tool with a sanding drum attachment. Do this work in a well-ventilated area and use eye protection! 7. Apply 30-minute epoxy liberally to the bottom of the horn and to the wood of the control surface. Install the horn.
- Page 10 Rudder control horn Your Slick is equipped with two rudder servo locations. If you use a lightweight engine, such as most 50CC singles, use the forward rudder servo location in the fuselage and the pull-pull cables. If you are using a larger engine such as 58-70CC you can use the rear servo location and pushrod to move the CG back if required.
- Page 11 Trim the rudder horn outer holes away (as on the other horns) if necessary to match the width of your rudder servo horn. Rear–mount servo horn The rear rudder servo location uses the same rudder horn location, but install the single-sided rudder horn instead of the double-sided.
- Page 12 Take your soldering iron or hobby knife and remove the covering over the necessary locations in the fuselage as shown: For wing bolt, anti-rotation pins and aileron extensions For the horizontal stabilizer bolts, pins, servo wires and rudder pull-pull cables if used. For canister tunnel covers (if canister-style muffler is to be used)
- Page 13 Also remove covering over the rear access port as shown. This port is used to access the pull-string for the elevator servo extensions, and also can be used to make any repairs ever needed to the tail-wheel mount or to add tail-weight easily if desired. This plate is held in-place by 3mm nuts and washers.
- Page 14 Assemble the pull-pull cables at the rudder end first, as shown, and feed the cables through the slots in the fuselage and pull them to the front of the fuselage. Cross them to form an “X” inside the fuselage. Center the rudder servo. Install the rudder servo as shown. Assemble the pull-pull ends and ball joints onto the rudder servo arm as shown, and attach the pull-pull cable using the same technique as before.
- Page 15 Adjust the lengths of the pull-pull cable to get good tension (just snug, with no sag, and no play in the rudder – “banjo-string” tight pull-pull wires will not make your plane fly better, but they will wear out your servo).
- Page 16 Slide the canister mounts loosely onto the canister as shown- Push the canister mounts up into place, tightly in front of and behind the landing gear plate.
- Page 17 When you have the mounts fully into position as shown, tack them in place with CA glue and then apply epoxy to permanently mount them. Pre-drill the screw holes, and use 4 wood screws to attach the canister-cover plate and 4 screws to attach the outlet plate.
- Page 18 Engine Mounting The Slick can use a variety of 50-70CC single cylinder engines. This manual shows the installation of a DA-50. Other engines are similar. Templates are included to locate the mounting holes for the DA-50 (same as DL-50, although you may need to very slightly slot the holes to fit the DL) and 3W engines. The correct distance between the firewall mounting surface and the prop mounting surface on the front of the engine is 6 and ¾”...
- Page 19 Using threadlocker on all mounting hardware, attach your motor to the firewall. It is a good idea to use large washers on the back of the firewall to spread the load. Loctite all mounting fasteners! We have provided more than enough fasteners to secure the firewall to the engine box, if one of your engine-mounting bolts interferes with one of the firewall attaching screws, remove the firewall attaching screw if necessary –...
- Page 20 Fuel Tank We recommend a two-line system for fuel, installed as follows: Assemble the fuel tank as shown, using small nylon zip-ties as hose clamps to retain the flexible fuel tubing onto the rigid metal tubing. Place a piece of foam rubber under the tank to isolate the tank from vibration, and install the long nylon ties through the slots in the tray as shown.
- Page 21 The fuel-feed line runs from the tank, to either a Du-Bro gasoline filler valve or a Y-connector and fuel dot, and then to the carburetor. Run the vent line as shown to prevent fuel loss during aerobatics.
- Page 22 Run the vent line into the cowl and out the bottom as shown: Cowl Installation The Slick cowl must be cut to allow clearance for the cylinder, spark plug, and muffler (if canister is not used) of the engine. We recommend the use of a dremel rotary tool for this step. Use eye protection and work in a well-ventilated area.
- Page 23 Use scissors to cut out this shape and adjust the cutout as needed. Transfer your cutout dimension onto the cowl, using the tracing of the alignment tabs for alignment.
- Page 24 Cut out this shape with the dremel. Attach the cowl to the fuselage using three 3mm bolts from the back of the fuselage former and 2 wood screws from the bottom through the alignment tabs. If you need to adjust your engine location to correct for cowl-to-spinner fit, this is accomplished by removing the engine-to-firewall bolts and using the dremel tool to slightly elongate the holes into slots.
- Page 25 Mount your elevator servos inside the horizontal stabilizers as shown. Center the servos, and slide your servo arms onto the servo output splines. Rotate the servos and arms as necessary to access all fasteners to lock the arms in-place. Use threadlocker if indicated by the servo- arm manufacturer.
- Page 26 Assemble the pushrod onto the servo arm and control horn as shown. The Slick includes a fiberglass tube installed into the fuselage to assist in cleanly routing your elevator servo extensions into the rear of the fuselage. A pull-string is pre-installed to help pull your servo extensions through the fiberglass tube.
- Page 27 Aileron Servos Remove the covering over the servo openings in the bottom of the wings. Attach an 12-18” extension to the aileron servo and secure the extension as before. A pull-string is provided to help guide the extension through the wing. Install the servo with the servo head toward the front of the airplane, and attach the pushrod as you did for the elevator.
- Page 28 Wing Attachment The wing attaches to the fuselage with one nylon thumb-screw per side. Your carbon-fiber wing tube is a snug fit into the wings and fuselage. This provides additional strength and fatigue resistance. As a result, you may need to periodically lubricate your wing tube. We recommend non-stick cooking spray or silicone spray-lube for this job.
- Page 29 The canopy hatch is supplied with the floor pre-installed. The rear of the hatch is left open so you can do any necessary work inside the cockpit area. When you have completed any work inside the cockpit, use CA glue to install the balsa rear plate onto the canopy hatch. The canopy hatch is held onto the fuselage with 3mm nylon thumbscrews.