Diamante 25e ARF Assembly Manual Specifications Wingspan: Length: Wing Area: Weight w/o Battery: Weight w/ Battery: 48 in (1200mm) 50 in (1250mm 485 sq in (31.3 sq dm) 3–3.3 lb (1.4–1.5 kg) 3.6–4.2 lb (1.6–1.
Table of Contents Introduction Specifications..........................................................................1 Introduction.............................................................................2 Using the Manual....................................................................2 Contents of Kit/Parts Layout.....................................................3 Required Radio Equipment.......................................................3 Important Information About Motor Selection..
Contents of Kit/Parts Layout Large Replacement Parts EFL4051 Wing w/Ailerons: EFL4052 Fuselage EFL4053 Tail Set EFL4055 Main Landing Gear EFL4056 Cowling EFL4057 Wheel Pants EFL4058 Canopy EFL4059 Spinner Small Replacement Parts EFL4054 Pushrod Set EFLA213 E-flite/JR/Horizon Decals Required Radio Equipment You will need a minimum 6-channel transmitter, crystals, micro receiver, and four mini servos.
Important Information About Motor Selection The Diamante 25e does not include a propeller. We are recommending the Power 25 or Power 32 outrunner motors. The motor systems listed will provide you with excellent aerobatic power for sport and/or artistic aerobatic pilots. All power systems listed include worry-free outrunner motors. Lightweight Sport Setup EFLM4025A EFLA1060 THP42003S2PPL APC12080E EFLC3005 EFLAEC303 Power 25 BL Outrunner, 870Kv 60A Pro Brushless ESC w/Switching BEC 4200mAh 3S2P 11.
Required Tools and Adhesives Tools & Equipment EFLA250 Park Flyer Tool Assortment, 5-piece Or Purchase Separately EFLA257 crewdriver, #0 Phillips (or included S with EFLA250) EFLA251 Hex Wrench: 3/32", 7/64" (or included with EFLA250) Nut driver: 5/16" Drill Drill bit: 1/16" (1.5mm), 5/64" (2mm), 9/64" (3.
Limited Warranty Damage Limits (a) This warranty is limited to the original Purchaser ("Purchaser") and is not transferable. REPAIR OR REPLACEMENT AS PROVIDED UNDER THIS WARRANTY IS THE EXCLUSIVE REMEDY OF THE PURCHASER. This warranty covers only those Products purchased from an authorized Horizon dealer. Third party transactions are not covered by this warranty. Proof of purchase is required for warranty claims.
Questions, Assistance, and Repairs Non-Warranty Repairs Your local hobby store and/or place of purchase cannot provide warranty support or repair. Once assembly, setup or use of the Product has been started, you must contact Horizon directly. This will enable Horizon to better answer your questions and service you in the event that you may need any assistance. For questions or assistance, please direct your email to productsupport@horizonhobby.com, or call 877.504.
Safety, Precautions, and Warnings As the user of this product, you are solely responsible for operating it in a manner that does not endanger yourself and others or result in damage to the product or the property of others. Carefully follow the directions and warnings for this and any optional support equipment (chargers, rechargeable battery packs, etc.) that you use. This model is controlled by a radio signal that is subject to interference from many sources outside your control.
2. Use a rotary tool and a 1/16 in (1.5mm) drill bit to drill a hole in the center of each hinge slot of both the aileron and wing. This provides a tunnel for the CA to wick into, penetrating the hinge. Hint: You can prepare the rudder, fin, elevator and stabilizer at this time as well. E-flite Diamante 25e ARF Assembly Manual 3. Slide the four hinges into the slots in the aileron. 4. Slide the aileron into position on the wing.
5. Apply a few drops onto each hinge. Make sure to apply the CA on both the top and bottom of the hinge. 7. Flex the aileron through its range of motion a few times to break in the hinges. Important: Do not use accelerator on the hinges. The CA must be allowed to soak in and penetrate the hinge. 6. Gently pull the aileron from the wing once the CA has fully cured. This is to verify the hinges are glued securely. 10 8. Repeat Steps 1 through 7 to complete the aileron installation.
9. Install the servo grommets and brass eyelets onto the aileron servo following the instructions provided with the servo. Attach a 6 in (152mm) servo extension to the aileron servo. Use a commercially available clip to keep the two from becoming disconnected inside the wing. E-flite Diamante 25e ARF Assembly Manual 10. Tie the string to the extension installed on the aileron servo. Pull the extension through the wing and out the hole in the center.
11. Place the servo into the opening in the wing. Use a felt-tipped pen to mark the locations for the servo mounting screws. 13. Apply a few drops of thin CA to each of the four holes. This will harden the underlying wood and help in preventing the screws from pulling out. 12. Use a pen drill and 1/16 in (1.5mm) drill bit to drill the four locations for the servo mounting screws. 14. Secure the servo in the wing using the screws provided with the servo.
15. Use a hobby knife to pierce the covering for the 3mm x 30mm machine screw. Slide the screw into the hole from the top of the wing. Slide a control horn washer onto the screw, then thread the control horn standoff onto the screw. Use a #1 Phillips screwdriver to tighten the assembly. 16. Thread the nylon control horn onto the control horn screw until the top of the horn is flush with the top of the screw. 17. Slide a clevis retainer onto a nylon clevis.
18. Plug the servo into the receiver and power up the radio system. Center the aileron stick and trim. Install a long servo arm onto the servo, parallel to the aileron hinge line. Mark the pushrod wire where it crosses the servo horn using a felt-tipped pen.
2. Slide the 6-32 x 11/8" machine screw through the bottom hole of the landing gear. Secure the screw using a 6-32 lock nut. Thread a second lock nut onto the screw. 3. Slide a #6 washer onto the screw, then slide the wheel onto the screw. Slide a second #6 washer onto the screw and secure the wheel using a 6-32 lock nut. Make sure the wheel can turn freely after installing the final nut. E-flite Diamante 25e ARF Assembly Manual 4. Test fit the wheel pant onto the landing gear.
6. Use a felt-tipped pen to transfer the location of the upper hole onto the wheel pant. 8. Press the 4-40 blind nut into the hole from the inside of the wheel pant. 9. Slide the wheel pant back onto the gear and secure using a 4-40 x 1/2" machine screw. 7. Use a drill and 9/64 in (3.5mm) drill bit to drill the location made in the previous step. 16 10. Repeat Steps 2 through 9 to install the remaining wheel and wheel pant.
Horizontal and Vertical Tail Installation 1. Enlarge the holes in the leading edge of the wing using a drill and 1/4 in (6mm) drill bit. 2. Use 6-minute epoxy to glue the 11/4 in x 1/4 in (32mm x 6mm) wing dowels into the leading edge of the wing. Clean up any excess epoxy using a paper towel and rubbing alcohol. The dowels will protrude 3/8 in (10mm) forward of the wing.
3. Attach the wing to the fuselage using the 10-32 nylon wing bolt. 4. Use six CA hinges to attach the elevator and stabilizer. Use the same technique as the aileron hinges when installing the elevator hinges. 5. Install the elevator control horn as shown following the same technique as the aileron control horn. Note the position of the control horn. 6. Slide the stabilizer into the fuselage. Make sure the control horn faces toward the bottom of the fuselage.
7. Measure from the wing tip to the stabilizer to make sure both measurements are equal. This will square the stabilizer to the wing and fuselage. Use a piece of string to check the distance between the wing and stabilizer. 8. Check to make sure the stabilizer is parallel to the wing. Lightly sand the fuselage where the stabilizer rests to correct any alignment problems. E-flite Diamante 25e ARF Assembly Manual 9.
10. Use a hobby knife with a new blade to remove the covering slightly inside the lines drawn in the previous step. 11. Slide the stabilizer back into the fuselage and double-check the alignment. Wick thin CA into the joint between the fuselage and stabilizer. Avoid using CA accelerator on the CA to give it time to wick into the joint. Allow the CA to cure before handling the fuselage. 12. Locate the tail gear assemble and apply a thin coat of petroleum jelly to the wire.
13. Use 6-minute epoxy to glue the tail wheel assembly into the pre-cut slot in the aft end of the fuselage. 14. Slide the fin into the slot in the aft end of the fuselage. Press the fin tight against the end of the fuselage, as it can rock forward in the slot. 15. Use a square to make sure the vertical fin is square to the stabilizer. 16. Use a felt-tipped pen to trace the outline of the fuselage onto the fin with the fin in correct alignment.
17. Remove the covering below the line drawn on the fin using the same technique as the stabilizer. Use thin CA to secure the fin to the fuselage. 18. Use three hinges to install the rudder onto the fin. The tail gear wire will be glued into the rudder using 6-minute epoxy. 19. Secure the tail wheel onto the tail gear assembly using two 3/32" wheel collars. 20. Install the rudder control horn using the same technique as the elevator and aileron control horns.
21. Attach a 12 in (305mm) servo extension to the rudder servo lead. Install the servo using the same technique as the aileron servo. Use the 7 in (178mm) pushrod wire to connect the servo to the rudder control horn. 22. Attach a 12 in (305mm) servo extension to the elevator servo lead. Install the servo using the same technique as the aileron servo. Use the 61/4 in (159mm) pushrod wire to connect the servo to the elevator control horn.
Motor Installation 2. Attach the mount to the motor using the hardware provided with the motor. 3. Install the four 4-40 blind nuts inside the fuselage. Use the appropriate holes for your particular motor. Use four 4-40 x 1/2" socket head screws to secure the motor to the firewall.
3. Plug the motor into the speed control. Use hook and loop tape to secure the speed control inside the fuselage out of the way of the battery. 4. Use the two hook and loop straps included with your plane to secure the battery inside the fuselage. Note: If the battery slides forward or backward, use hook and loop tape on the battery and inside the fuselage to prevent the battery from moving.
6. Use tape and cardstock to make tabs to indicate the location of the tabs at the front of the fuselage for mounting the cowling. 8. With the cowl aligned with the spinner, use a drill and 1/16 in (1.5mm) drill bit to drill through the cowl and into the fuselage using the cardstock as guides. 7. Slide the cowling onto the fuselage. Use the propeller adapter to attach the propeller and spinner backplate temporarily onto the motor.
Final Assembly Required Parts • Fuselage assembly • Receiver • Canopy Required Tools and Adhesives • Hook and loop tape • Canopy Glue (PAAPT56) • Sandpaper • Masking tape • Felt-tipped pen 2. Place the canopy onto the hatch. Use a felt-tipped pen to trace the outline of the canopy onto the hatch. 1. Secure the receiver inside the fuselage using hook and loop tape. Follow the instructions provided with the receiver when installing the antenna.
3. Use canopy glue to attach the canopy to the canopy hatch. Tape the canopy into position until the glue fully cures. Control Throws 1. Turn on the transmitter and receiver of your aircraft. Check the movement of the rudder using the transmitter. When the stick is moved right, the rudder should also move right. Reverse the direction of the servo at the transmitter if necessary. 2. Check the movement of the elevator with the radio system.
Center of Gravity An important part of preparing the aircraft for flight is properly balancing the model. Caution: Do not inadvertently skip this step! The recommended Center of Gravity (CG) location is 5–51/2 in (127–140mm) behind the leading edge of the wing against the fuselage. Preflight Check Your Radio Before going to the field, be sure that your batteries are fully charged per the instructions included with your radio. Charge both the transmitter and receiver pack for your airplane.
Flying the Diamante 25e You will find the Diamante 25e to be a solid, honest-flying model. It is capable of handling all kinds of weather. Ensure your CG is set according to the manual and power up the aircraft. Move your throttle trim up slowly until the motor just begins to spin. This will be your flight idle that will help to establish a longer glide path and tends to make landings easier.
Servo and Control Setup 3D and precision model trim typically go against each other. What I mean by this is that when pilots set up their new 40% something, they go straight for the big rates—35, 40, and sometimes up to 50 degrees of throw. Any thoughts about how this can affect the servo resolution, and more importantly the servo power? 99% of scale aerobatic events allow a separate aircraft for freestyle.
Sequencing Many of the trimming articles I have seen over the years incorporate some kind of chart or graph saying do this and this happens and so on. My concept of sequencing your trimming is simple. If you get your trimming out of sequence you will end up chasing your tail. As with most things in this universe, for every cause there is an effect, and the same applies to trimming a model aircraft.
Dynamic Balance Ok, we are happy with our Center of Gravity, so the next thing is dynamic balance. This is really only relevant with wing tip weight, most other axes on a model aircraft are not affected too much by the dynamic effects of high G force loads. Having said that, your wings are. Just because they both weigh the same, and don’t carry any aileron trim doesn’t mean you can’t have a wing weight problem. I have seen a myriad of ways to test for wing weight trim—loops, pulling to vertical, and so on.
After many pull ups, you really need more right thrust, as you pass through 500’ you can clearly see your model drifting to the left. Here is the cool tip: apply some right rudder and continue to apply it until it tracks straight. Bring the plan into land and check your rudder deflection. Use a protractor to see how many degrees of rudder you required for a straight vertical. Whatever it is, divide it by 2 and that will be what you need to add to your right thrust.
I want you to use the same technique as before when checking for the thrust, only this time only pull to 45 degrees, making sure you are either directly into the wind, or directly down wind. Using full aileron deflection, roll to the right. If the aircraft (what I call )walks to the right, then you have too much down travel on your ailerons. If you roll to the right and the model “walks” to the left, you have too much up travel in your ailerons.
Good news is, it’s fairly easy to compensate for. Lets do the roll axis first, you can do this 2 ways and both work well. In fact, I would suggest you try both to get the best input. Version 1 is to climb to a high altitude, simulating a typical top of the box altitude and fly directly over your head and into the wind. About 50–100 feet out from your self, push down. You are now looking at the plan view of the model. Watch carefully to see if the model is rolling on the down line.
Rudder elevator. I think about 3 times in my entire life I had a model that didn’t need rudder elevator compensation. Same as with the previous rudder aileron, start by doing a flat turn to the left and see what happens. If your model pitches down when rudder is applied, then mix a small amount of up elevator: if it pitches up, apply a small amount of down elevator. There are some cases, even without blowback, the mix value will not be exactly correct for all throttle settings.
2007 Official AMA National Model Aircraft Safety Code GENERAL 1) I will not fly my model aircraft in sanctioned events, air shows or model flying demonstrations until it has been proven to be airworthy by having been previously, successfully flight tested. 2) I will not fly my model higher than approximately 400 feet within 3 miles of an airport without notifying the airport operator. I will give right-of-way and avoid flying in the proximity of full-scale aircraft.
Building and Flying Notes E-flite Diamante 25e ARF Assembly Manual 39
© 2007 Horizon Hobby, Inc. 4105 Fieldstone Road Champaign, Illinois 61822 (877) 504-0233 9891 horizonhobby.com E-fliteRC.
