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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” inches.  Tape the pattern in-place on the firewall as shown and drill the engine 
mounting holes.  Included on the pattern is the location for the throttle-pushrod slot for use with the 
throttle-servo location in the bottom of the motor box.  Note that this may require you to flip the carburetor 
over on some 50CC engines.   Remove the pattern after drilling.     
 

 

 

Содержание AJ Slick

Страница 1: ...n 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 ...

Страница 2: ...posed to varying humidity in the air This is a natural property of balsa wood As your airplane adjusts to the weather in your part of the world wrinkles may appear and disappear Wrinkles may be removed with the gentle application of heat to the covering material on your airplane using an iron and or heat gun Apply the heat gently the covering material will shrink as you apply the heat and this wil...

Страница 3: ...e 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 ...

Страница 4: ...ly 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 they should almost touch Please see photos Use paper towel and rubbing alcohol to clean up any excess epoxy Allow to dry fully ...

Страница 5: ...ue loctite on these screws The main axles must be shortened 25 6mm with a dremel or similar tool or a hacksaw WEAR EYE PROTECTION when shortening the axles Place one wheel collar over the axle then the main wheel then the other collar and tighten as shown Note the supplied wheels are lightweight models If you fly from a rough field or like to do harrier landings often HD wheels are a good upgrade ...

Страница 6: ...s 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 ...

Страница 7: ... over each of these locations The best way to trim covering on this aircraft is with a hot pencil tip soldering iron This method gives a clean cut and also seals the edges of the covering at the cut line You can also use a hobby knife if you cannot use a soldering iron for this job but the iron is recommended 1 First locate the control horn location in each control surface 2 Cut away the covering ...

Страница 8: ...sing 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 ...

Страница 9: ...ilated 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 Wipe up excess epoxy with a paper towel and alcohol Temporarily install a 3mm bolt through the bolt holes to ensure proper alignment of the two horn halves Allow the epoxy to cure ...

Страница 10: ...move the CG back if required Both positions are illustrated below Pull Pull style horn The rudder pull pull control horn is installed in a similar fashion except that it is double sided Remove the covering on both sides of the rudder over the slots as you did for the elevators and ailerons apply epoxy to the center of the two horn pieces and install into the rudder Use alcohol to clean any excess ...

Страница 11: ...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 See photo ...

Страница 12: ...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 ...

Страница 13: ...or 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 Pull Pull cables The pull pull cables for the rudder are assembled as shown in the following diagram ...

Страница 14: ...n 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 ...

Страница 15: ...ull pull cables apply thin CA glue to each of the crimps Exhaust Canister Muffler Installation The Slick includes pre fabricated mounts for the MTW TD 75K short canister muffler available from Desert Aircraft Slide the canister part way into the canister tunnel you will need to twist the can as it goes in to clear the fuselage former Find the two canister mounts pictured below Note that the front ...

Страница 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 ...

Страница 17: ...lly 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 ...

Страница 18: ...he 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 inches Tape the pattern in place on the firewall as shown and drill the engine mounting holes Included on the pattern is the location for the throttle pushrod slot for use with the throttle servo location in the bottom of the motor box Note that this may...

Страница 19: ...e servo We have provided a location in the bottom of the engine mounting box behind the firewall This hole is cut for a full size servo The throttle linkage rod and ball joint are included in your kit We have also included two servo mounting boxes for full size servos These can be used to place throttle and choke servos anywhere you need within the engine mounting box The choke linkage is provided...

Страница 20: ...e 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 ...

Страница 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 ...

Страница 22: ...l 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 Use a piece of stiff paper or card stock for a pattern as shown below ...

Страница 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 ...

Страница 24: ...ngine 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 If you need to space the spinner forward for clearance to the cowl use washers in between the engine and firewall as necessary to achieve a 1 8 to clearance between the cowl and the spinner backplate Elevator Servos and ...

Страница 25: ...if indicated by the servo arm manufacturer We also use a dab of silicone adhesive on the servo arm screw to lock it in place against vibration Assemble the elevator pushrod as shown The elevator pushrods are the shorter of the included pushrods The longer ones are for the ailerons and rudder if rear location is used Note that the pushrods have one left hand thread and one right hand thread so that...

Страница 26: ...stalled to help pull your servo extensions through the fiberglass tube Install the horizontal stabilizers onto the fuselage using the carbon fiber tube spar The horizontal stabs are retained by two screws on each side as shown For a permanent stab installation use threadlocker on these screws If you wish to allow the stabs to be removed for transportation you must inspect these screws frequently a...

Страница 27: ... 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 ...

Страница 28: ...ded motors include Hacker A60 18L and A80 8 Reaper GR 70 A plywood piece is supplied to block off the exhaust canister tunnel if needed for electric applications To mount your electric motor create a mounting template for your particular motor mount on paper Match up the center of your template with the thrust line center on the firewall and mark your hole locations Be sure to use blue Loctite on ...

Страница 29: ... but because they are plastic they will not last forever Inspect them frequently spares are included in your kit You can also use a 3mm allen bolt and washer if desired Center of Gravity Measure at WINGTIP 4 5 inches back from leading edge is preferred Allowable range is 4 0 to 5 0 Control Setup Throws High Rate Ailerons 45 degrees Elevator 50 55 degrees Rudder Maximum throw available without inte...

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