Hangar 9 PT-19 Instruction Manual Download Page 36 | Manualshive

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Step 11.

Tighten the 3mm screw slightly. Then, insert the stop-

per, clunk, and tubes into the fuel tank. Position tubing as
shown in Step 9. Note vent tube position. After stopper assem-
bly is inserted, finish tightening the 3mm screw. This will allow
the rubber stopper to form a seal.

Important:

Remember which

tube is the fuel pickup and which is the vent so you can properly
connect the fuel tank to the engine. You may want to mark one of
the tubes with a piece of masking tape identifying which one it is
(i.e., either “V” or “F”).

Step 12.

Install the fuel tubing onto the two tubes and feed

through the holes in the firewall as you press the fuel tank into

position. Foam in the tank compartment can be used to provide
some vibration damping and help support the fuel tank (foam
not provided). Some trimming of the fuel tank location may be
necessary to fit the tank into the fuselage.

Step 13.

If you are going use a Zenoah gasoline engine, you

will need to relocate where the fuel tubing exits the compart-
ment. We suggest below the plywood motor mount.

Section 13: Assembling and Installing the Fuel
Tank (Glow/Gas)

CONTINUED

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Summary of Contents for PT-19

Page 1: ...Pre finished fiberglass cowl Gas or glow option PT 19 Giant Scale 1 20 ARF Specifications Wingspan 82 208 3 cm Length 63 5 161 3 cm Wing Area 1010 sq in 6516 5 sq cm Weight Approx 13 16 lbs 5896 7257 grams Recommended Engines 1 08 1 20 2 Stroke 1 20 1 50 4 Stroke Zenoah G23 Gas or Glow UltraCote is a registered trademark of Carl Goldberg Models Inc ...

Page 2: ...tion 8 Hinging the Rudder and Installing the Tail Wheel 22 Section 9 Installing the Control Horns 25 Section 10 Installing the Main Landing Gear 28 Section 11 Installing the Engine 2 or 4 Cycle 30 Section 12 Installing the Engine Gas Option 32 Section 13 Assembling and Installing the Fuel Tank Glow Gas 34 Section 14 Installing the Radio 37 Section 15 Installing the Control Linkages 39 Section 16 A...

Page 3: ...w for numer ous variations If you decide to make such a variation we would be very interested in learning about your effort Remember any changes in the basic parameters of the kit could result in a model that does not perform as this kit has been designed to do Our research and development staff have built numerous prototypes leading up to this production version Please be sure to read Section 20 ...

Page 4: ... C 56 Silver solder Stay Brite Tools Drill Drill bits 1 16 1 8 5 32 1 4 3 8 Soldering iron Small Phillips screwdriver Medium Phillips screwdriver Z bend pliers Pliers 1 16 hex wrench Small round file Moto Tool with sanding drum Hobby knife with 11 blade Mixing stick Epoxy brush 90 degree triangle Sanding sticks medium Medium sandpaper Masking tape Straight edge Measuring device e g ruler tape meas...

Page 5: ...rtical stabilizer with rudder E Horizontal stabilizer with elevators F Cowl Other Parts not pictured Pushrod and accessories 1 8 plywood die cut parts Main landing gear Hardware bag Wheels Fuel tank and hardware Decal sheet Metal motor mounts hardware Windshield material Tail wheel and hardware A B C D E F ...

Page 6: ...n against the wing panel This will ensure that the hinges are centered Step 4 Deflect the aileron and completely saturate the hinge with thin CA glue The aileron s front surface should lightly con tact the wing during this procedure Ideally when the hinge is glued in place a 1 32 gap or less will be maintained throughout the length of the aileron The hinge is constructed of a special material that...

Page 7: ...n place Step 8 After both ailerons are securely hinged firmly grasp the wing and aileron and check that the hinges are securely glued and cannot be pulled out To do this apply medium pressure to try to separate the aileron from the wing Use caution that you do not crush the wing structure Note Work the aileron up and down several times to work in the hinges and check for proper movement Section 1 ...

Page 8: ...ntil this is achieved Note It s a good idea to make a gauge that can be placed under the wing to hold it at 61 4 when epoxying wing halves together Step 4 Separate the wing halves and remove the dihedral brace Once you re satisfied with the trial fit of the wing panels you can prepare to epoxy the wing panels together Step 5 Note Use the plastic wing covers as a means of keep ing epoxy from smeari...

Page 9: ...e workbench top side up Install the epoxy coated half of the dihedral brace into the wing joiner cavity of the wing panel up to the centerline making sure the V of the dihedral brace is orientated correctly Use rubbing alcohol and a paper towel to clean up any excess epoxy Step 8 Apply a generous amount of epoxy into the wing brace cavity of the other wing panel Note You ll need to mix up an addit...

Page 10: ...g flat on the surface the oppo site wing tip should be propped such that it s 61 4 from the sur face Apply more masking tape to the wing center joint and recheck the 61 4 measurement Also make sure the wing halves are still properly aligned Allow the wing joint epoxy to cure completely overnight Note It s helpful to use wax paper underneath the wing cen ter while the epoxy is curing so any excess ...

Page 11: ...together to prevent the wires from becoming unplugged inside the wing Step 3 Trial fit the servo into the servo opening Depending upon the type of servo installed some trimming may be required Note that we have orientated the servo so the servo arm is closer to the trailing edge of the wing Step 4 With the servo in place mark the location of the servo screws that are used to mount the servo to the...

Page 12: ...can see it in the servo opening in the wing bottom A needle nose pliers can be used to grasp the wire and pull it out of the opening The wire can be started either way but we found it easier to get the wire out using the method described above An optional method is to use a 16 piece of string with a weight such as a nut attached and threaded down the servo opening and out the servo lead opening at...

Page 13: ...e control horn Step 3 Remove the control horn and drill two 1 16 holes through the aileron as marked Note The trailing edge of the aileron should be in line with the rest of the wing Drill straight down at a 90 to the flat surface table Step 4 Attach the aileron control horn using the hardware pro vided two long screws and a plastic back plate and fasten it in place using a small Phillips screwdri...

Page 14: ...kage and cut off the excess wire Step 9 Center the servo arm and install the Z bend into the outermost hole Do the same for the other aileron linkage Step 10 Attach the linkages onto their respective aileron con trol horns Step 11 With the servo arm centered as shown adjust the aileron linkage until the aileron is exactly in the neutral position Follow this procedure for the other aileron linkage ...

Page 15: ... bottom of the wing so the plate can be epoxied to the wing Trial fit the piece marking its location with a pencil Use a sharp hobby knife to trim away the covering CAUTION Be careful to not cut into the wood as this can weaken the structure Step 4 Note that the wing bolt plate has the holes already drilled out for the wing hold down bolts It is important that the holes in the plates are oriented ...

Page 16: ... wing tip exactly the same distance on each side from the center wing The measurements on each side should be the same Step 9 Once you re satisfied with the alignment you re ready to drill the wing hold down bolt holes Using a 3 8 drill bit and the wing bolt plate holes as a guide drill through at a 90 angle from the wing into the fuselage and through the plywood wing hold down plate After drillin...

Page 17: ... on the fuselage Thread the wing hold down screws into the wing and loosely tighten Check the alignment of the wing by measuring the alignment as you did in Step 9 It may be necessary to slightly enlarge the holes with a small round file to obtain the proper alignment Step 13 Locate the yellow wing center tape Apply to the top and bottom of the wing center using a covering iron Section 5 Mounting ...

Page 18: ...l stabilizer will be mounted to the fuselage first Remove the two elevator halves from the horizontal stabilizer Measure to exact center of trailing edge and mark with felt tipped pen This will serve as a reference point when installing the horizon tal stabilizer onto the fuselage Step 3 Slide the horizontal stabilizer carefully into the slot pro vided in the fuselage You may have to trim the open...

Page 19: ... trim the balsa wood on the fuselage or fin with a sharp hobby knife to achieve exact alignment Step 8 When you re satisfied with the alignment carefully mark the position with a pencil at the junction where the hori zontal stabilizer meets the fuselage top and bottom and where the vertical fin meets the fuselage top The pencil should make a light indentation in the covering Step 9 Remove the hori...

Page 20: ...ay in Finally position it to the reference marks established when aligning the horizontal stabilizer Clean off any excess epoxy with rubbing alcohol and a paper towel After the epoxy has begun to cure after about 15 20 minutes remove the tape for a clean seam Allow the epoxy to cure before installing the vertical fin Step 11 Mix up a small amount approximately 1 4 ounce of 30 minute epoxy and appl...

Page 21: ...ep 2 With one elevator half properly aligned left and right apply thin CA glue to the hinges on both sides Wipe away any excess CA with CA debonder and a paper towel Step 3 After the hinges are dry check to be sure they are securely in place by trying to pull the elevator from the horizon tal stabilizer Use care not to crush the structure Step 4 Repeat Steps 1 3 for the other elevator half Step 5 ...

Page 22: ...g resting against the bend in the tail wheel wire use needle nose pliers to make a 90 degree bend in the direction shown below above the top of the pivot bushing The bend is 90 to the axle of the tailwheel wire Note The part of the tail wheel wire that inserts into the rudder must go into the hardwood block in the rudder This block extends15 16 from the bottom of the rudder Locate the bend of the ...

Page 23: ... fuselage using T pins to make sure the hinges are cen tered The hinges will be CA d after the next step Step 8 Apply vaseline or oil to the music wire area of the tail wheel wire so it does not adhere to the epoxy Note Do not apply to the area that goes into the rudder Mix up approximately 1 4 ounce of 30 minute epoxy and apply it to both the pivot bushing where it goes into the fuselage and into...

Page 24: ...e vertical fin fuselage Step 11 Work the rudder back and forth left and right Check to make sure movement is free and that the tail wheel assembly tracks accordingly Step 12 Once you re satisfied the tail wheel wire is correctly aligned slide the tail wheel itself onto the wire Next slide the wheel collar on the wire and tighten the screw in the wheel col lar Use Threadlock Z 42 to secure the coll...

Page 25: ... a mark with a felt tipped pen Step 3 Locate one control horn and trial fit the horn on the elevator with the edge closest to the fuselage adjacent to the mark you made in Step 2 Step 4 Position the horn so the holes for the clevis are directly over the hinge line of the elevator horizontal stabilizer When you re satis fied with the position mark the screw holes with a felt tipped pen Standard con...

Page 26: ...tep 8 Next install the rudder control horns on the left and right side of the rudder Measure up 11 2 from the bottom of the rudder on one side as shown below This will serve as the refer ence point and represent where the bottom edge of the control horn will be located Step 9 Place one control horn adjacent to the mark you made in Step 8 Position it so the clevis holes are lined up over the hinge ...

Page 27: ... rudder control horn on both sides of the rudder with two screws Again make sure the control horns are centered over the hinge line Install hex nuts to keep horns in place use Threadlock Z 42 to secure in place Section 9 Installing the Control Horns CONTINUED ...

Page 28: ...3 Locate the four metal landing gear straps and eight self tapping screws With one landing gear installed into a land ing gear block in a wing panel place two metal straps across the landing gear strut Using a pencil mark the location of the land ing gear strap holes for the screws Step 4 Remove the landing gear straps from the wing Using a 1 16 drill bit drill pilot holes for the metal strap scre...

Page 29: ...p 6 Repeat Steps 3 through 6 to mount the second main landing gear to the wing Step 7 The main wheels may be installed at this point using the four wheel collars provided If you re planning on adding scale details to the landing gear refer to Section 18 Application of Decals and Scale Detailing Section 10 Installing the Main Landing Gear CONTINUED ...

Page 30: ...ce between the mounts can be adjusted This will allow mounting of engines with different size crankcases Step 4 Mount the metal motor mounts on the firewall using the hardware provided Do not over tighten the screws until you have done a trial fit of the engine on the mount to finalize space required Note It will be necessary to thread the long music wire the longest piece of music wire provided w...

Page 31: ...ounts You can remove your engine at this point while completing the following sections Prior to installing the control linkages you will want to remount your engine 6 Fuselage The drawing above shows the distance of the engine Saito 1 50 placement prior to the trial fitting of the cowl Section 11 Installing the Engine 2 or 4 Cycle ...

Page 32: ...or mount to seal them from fuel Allow the epoxy to cure completely CAUTION Do not get epoxy into any of the pre drilled holes Step 2 After the epoxy has dried proceed with mounting the Zenoah G 23 First locate the four 4mm x 25mm flat head machine screws and the four blind nuts A template of the hard wood motor mount is shown below Note where the flat head screws and machine screws go To mount the...

Page 33: ... nuts in the firewall Note If you plan to build the aircraft so it can have the hard wood motor mount removable do not epoxy the hard wood motor mount to the firewall simply secure in place with the four flat head screws Step 5 Mix up approximately 1 ounce of 30 minute epoxy and apply to the backside of the hardwood motor mount the side that will contact the firewall Mount the hardwood motor mount...

Page 34: ... brass tube on one side of the black rubber stopper so the small peg faces away from the stopper and toward the inside of the fuel tank The longer cap is placed on the other side of the rubber stopper so the raised center faces away from the rubber stopper Step 4 Locate the other brass tube and bend it using your fingers as shown This tube will be the fuel tank vent tube Step 5 Slide the vent tube...

Page 35: ... onto the pickup brass tubing Step 9 Insert the 3mm screw into the center hole of the larger plastic cap and tighten until it just threads into the black cap on the other side of the rubber stopper Step 10 Carefully insert the assembly into the fuel tank Note the position of the vent tube it must be at the top portion of the fuel tank to function properly Be sure the vent is positioned at the top ...

Page 36: ...piece of masking tape identifying which one it is i e either V or F Step 12 Install the fuel tubing onto the two tubes and feed through the holes in the firewall as you press the fuel tank into position Foam in the tank compartment can be used to provide some vibration damping and help support the fuel tank foam not provided Some trimming of the fuel tank location may be necessary to fit the tank ...

Page 37: ...inkage Step 3 Once you re satisfied with the servo alignment mark the mounting holes for the elevator and throttle servos Remove all of the servos from the tray except the center rudder servo Step 4 Trial fit the two plywood pieces of the rudder servo so that the servo is positioned higher Mark where the hardwood pieces are located on the tray Remove the servo and hardwood pieces 4 channel radio s...

Page 38: ...ep 8 Route the antenna back through the fuselage using an antenna tube not included or route it outside the fuselage back to the vertical fin Install the switch on the right side of the front of the cockpit so that it s easily accessible Step 9 Connect the three servos in the fuselage to the receiver and then connect the switch harness to the receiver and battery pack as outlined in your radio s i...

Page 39: ...e two elevators and one shorter threaded rod to connect to the servo horn on the other end Step 2 Using either a pencil or felt tipped pen mark 2 from each end of the hardwood pushrod 2 places Step 3 Drill a 1 8 hole through the hardwood pushrod at one marked end Drill a 1 8 hole at the other end marked but drill it so it is 90 degrees in reference to the first hole drilled Step 4 At the end you d...

Page 40: ... control horn Step 8 Trial fit the two 12 threaded rods into the holes on either side of the wood pushrod We highly recommend you cut a groove for both to help secure the rods You may also need to bevel the hole so the wires fit flush to the hardwood pushrod Step 9 Once you re satisfied with the fit mix a small amount approximately 1 4 ounce of 12 minute epoxy and apply it to the holes and areas t...

Page 41: ...usic wire so the Z bend you will make will go into the hole in the elevator servo arm Step 15 Once you are satisfied with the dimensions of the elevator servo pushrod wire remove the wire from the wooden pushrod and make the Z bend at the location you marked Trim off any excess wire Trial fit the music wire rod to the hole in the wooden pushrod to make sure it fits flush against the wooden pushrod...

Page 42: ...age and connecting to the control horn of the rudder servo Final length adjustments can be made at either or both ends of a linkage by screwing the clevises in and out as need ed You can also move the clevis closer in or further out on the horn arm Be sure to use 5 7mm sections of fuel tubing over each clevis to prevent accidental opening Note that we have removed two of the servo arms to allow mo...

Page 43: ...u can then proceed to make any elec trical adjustments through your transmitter if applicable Check each clevis to make sure there is a 5 7mm section of fuel tubing over each clevis to prevent accidental opening Also check to make sure the linkage movement is free for each control There should not be binding of any of the control surfaces or linkages Special Note for installing the throttle servo ...

Page 44: ...y binding problems Step 32 Assemble the two ball links to the coupling rod Attach one end of the coupling rod assembly to the bell crank unit Attach the other ball link to the carburetor arm The length of the coupling rod assembly can be adjusted by screwing the ball links in our out on the threaded coupling rod If the threaded coupling rod is too long you may have to trim a small portion off and ...

Page 45: ... spacer will be used to hold the servo up about 1 16 from the plywood firewall while the epoxy cures Wrap a piece of wax paper around the spacer so it can be removed once the epoxy cures When these preparations are fin ished mix up a small amount of 6 minute epoxy approximately 1 4 ounce Apply to the dowels and insert into the firewall making sure the spacer is in place so the servo is held approx...

Page 46: ...Mark the location with a felt tipped pen For illustration purposes we are showing the openings for the Saito 1 50 engine mounted in the PT 19 Step 4 Carefully cut out this location using a Moto Tool Note If you re using another type of engine it will be necessary to carefully cut portions of the cowl that are located differently from where it s shown for the installation of the Saito 1 50 Step 5 S...

Page 47: ...he cowl hold down screw locations Note the hardwood blocks around the engine compartment These are located as hard points for the cowl screws to mount to The use of a paper template will ease location of the screw holes in the cowl Step 8 Use a 1 16 drill bit to drill out pilot holes in the cowl and the screw hold down blocks It s helpful to use soap on the threads of the screws when you screw int...

Page 48: ...ula 560 Use masking tape to hold the windscreens in place while the glue dries Allow at least 24 hours to dry Step 5 After the windscreens are firmly in place apply the black trim tape to the frame outlines on each windscreen for a more finished look You can also mask and spray paint the frames either black or blue Hint Another method for attaching the windscreens is to use 1 16 Du Bro button head...

Page 49: ...h the location remove the backing and apply the decal Use a soft cloth to rub out any bubbles in the decal You can also use a mixture of soap and water applied to the wing surface and position the decal The soapy water will allow the decal to be moved into position Step 3 The large yellow field numbers are centered approxi mately 20 from the rear of the fuselage not the rudder and 31 2 up from the...

Page 50: ...nstrument Panels Step 9 Instrument panels can be installed in the cockpits Ready made instrument panels are available for the PT 19 from Hangar 9 HAN 180 includes both front and rear panels or HAN181 front instrument panel and HAN182 rear instrument panel are available for installation as shown below Pilots Step 10 Pilot busts can be added to the cockpits to provide a more realistic appearance Pil...

Page 51: ...d White Hand Lift Handle Yellow Field Number Fixed Cantilever Landing Gear Hydraulic Brakes Technical Data Legend Fire Extinguisher Door Field Number Performance Top Speed 135 mph Cruising Speed 120 mph Stalling Speed 46 mph Service Ceiling 16 000 ft Rate of Climb 835 fpm Range Cruising 480 miles Specifications Wingspan 35 11 18 Length 27 8 37 Height 7 9 0 Empty Weight 1749 lbs Gross Weight 2450 l...

Page 52: ... only one rate is available on your radio set up the control throws for low rate for the first flights then increase the throws to your liking Aileron Low Rate High Rate Measured furthest inboard 3 8 5 8 Elevator Low Rate High Rate Measured furthest inboard 5 8 1 Rudder Low Rate High Rate Measured at the bottom of the rudder 1 21 8 ...

Page 53: ...to the tail or nose until the correct balance is achieved Stick on weights are available at your local hobby shop and work well for this purpose We have tested several PT 19 models using the following power plants and have found the added weight to be approximately as follows Webra 1 20 No additional weight needed Saito 1 50 0 3 oz to tail Zenoah G 23 8 10 oz to tail Note The above weights are wha...

Page 54: ...harge the transmitter and receiver battery per the instruc tions included with the radio system 5 Read and follow all the instructions included with the engine and follow the recommended break in procedure Flight Instructions Experienced pilots will find the PT 19 to be a confidence inspiring airplane Super stable and slow flight characteristics make pinpoint landings a breeze At full throttle wit...

Page 55: ...all controls aileron elevator throt tle and rudder move in the correct direction Step 3 Be sure that your batteries are fully charged per the instructions included with your radio Adjusting the Engine Step 1 Completely read the instructions included with your engine and follow the recommended break in procedure At the field adjust the engine to a slightly rich setting at full throttle and adjust t...

Page 56: ...rs 8 I will not operate models with metal bladed propellers or with gaseous boosts in which gases other than air enter their internal combustion engine s nor will I operate models with extremely haz ardous fuels such as those containing tetranitromethane or hydrazine 9 I will not operate models with pyrotechnics any device that explodes burns or propels a projectile of any kind including but not l...

Page 57: ... Copyright 1999 Horizon Hobby Distributors Inc www horizonhobby com ...

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