Wild Hare R/C Edge 540T Assembly Manual

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Preliminary edition rev. 1.08 June 25, 2004

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Wild Hare R/C

Edge 540T 28%

Extra 300LX and Extra 300 Special 28%

Assembly Manual

For assistance contact Wild Hare R/C

8608 Doral Court, Flower Mound Texas 75022

817-430-0107 Fax 817-490-1279

Email support@wildharerc.com

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Summary of Contents for Wild Hare R/C Edge 540T

Page 1 Wild Hare R/C Edge 540T 28% Extra 300LX and Extra 300 Special 28% Assembly Manual For assistance contact Wild Hare R/C 8608 Doral Court, Flower Mound Texas 75022 817-430-0107 Fax 817-490-1279 Email support@wildharerc.com Copyright © 2004 by Wild Hare Hobbies, Inc. All rights reserved.
Page 2 Warranty Information Wild Hare R/C, division of Wild Hare Hobbies, Inc. guarantees this kit to be free of defects in both material and workmanship at the time of purchase. This warranty does not cover any components damaged by use or modification. In no case shall Wild Hare Hobbies, Inc. liabil- ity exceed the original cost of the purchased kit.
Page 3 Specifications Wingspan 84 inches Length 76 inches Wing Area 1350 sq. inches Weight 16-18 lbs . Recommended engine 50 to 62 cc gasoline engine Additional equipment required Computer Radio with at least 8 channels 2 Elevator servos minimum 100 oz/in. of torque each 2 aileron servos, total torque required not less than 120 oz./in.
Page 4 Optional Accessories Wild Hare R/C makes available several accessories that can enhance the Edge 540T. These are; Hardware kit. The hardware kit includes all the things you need to assemble the Edge except for engine, spinner, glue, prop, and electronics. Specifically it con- tains;...
Page 5 Table of Contents Steps Subject Open and inspect everything Mount the engine Hinge the control surfaces Mount the hatch and canopy Mount the horizontal stabilizers Install the control horns Install the servos Install the landing gear Install a fuel tank and fuel system** Mount the radio equipment** Hook up the engine control linkage** Mount the wings...
Page 6 28% Edge 540T Assembly Manual Step 1. Open and inspect everything This section should be fairly self explanatory. In the large box you should have a fuselage with hatch., wing tube and dual stab tubes, the elevator/stab assemblies, the rudder, cowl, wheel pants, canopy, and a package with the land- ing gear, tail wheel bracket and miscellaneous nuts and bolts.
Page 7 Known issues and improvements There are a few areas where, at this unassembled stage, you can improve the final results of your assembly project. There are many items that cannot be addressed on the assembly line due to cost and possibly because not every improvement would be welcomed by every builder.
Page 8 28% Edge 540T Assembly Manual Step 2. Engine mounting The first thing to do, before anything else goes in the fuselage, is to get the engine mounted and aligned with the cowl. Here’s how I have done it. This is the hardest and most time con- suming step in building this plane.
Page 9 small piece of ply through the large hole in the firewall to allow the engine to move around to position it. Put the screw through this wood piece, through the large hole in the firewall, and into the engine spacer so that the wood spacer is snug against the firewall but will still slide around.
Page 10 gine spacing so that the spinner back plate fits per- fectly. Remember that the firewall is already set with proper thrust angles, any drilling must be square to the firewall and not parallel with the fuse- lage line. Like I said, the rest is very easy.
Page 11 28% Edge 540T Assembly Manual Step 3. Hinging the control surfaces Hinging is a very simple matter. We recommend that you hinge all the control surfaces in two steps allowing the glue to dry between steps. These photos show our 35% Extra, but the technique is identical.
Page 12 eration every few minutes as the glues sets wipe off any excess that oozes from the glue joint. It’s also a good idea to put some lite oil (like WD40) on a rag, and to wipe the edges of the hinging surfaces with this rag.
Page 13 28% Edge 540T Assembly Manual Step 4. Mounting the hatch and canopy The hatch mounts to the fuselage by two tabs on each side that are attached at the rear of the hatch. Set the hatch on the fuse and mark the fuselage so you can see where the fore and aft edges of the mounting tabs are.
Page 14 28% Edge 540T Assembly Manual Step 5. Install horizontal stabilizer This step is easy. Trim the covering around the holes in the fuse for the stab spar tube and the two retaining bolt holes on each side. You should also cut away the covering over the holes for the eleva- tor servos, but don’t cut out the rudder servo covering yet.
Page 15 28% Edge 540T Assembly Manual Step 6. Install control horns on all surfaces We recommend Rocket City or similar control horns with a 8-32 screw used for the horn. Rocket city #69D is the one I prefer because of the snap-together assembly. Each package has hardware so that you get either 2 control horns or 1 rudder tiller.
Page 16 Now, cut off the head of the stud/screw and thread the rest of the hardware onto the screw. Here’s a tip. When you cut the head off with your Dremel, it will be hot. Don’t let it fall on your legs or on the surface or it will burn through the covering (or your skin or pants). Rudder tiller;...
Page 17 28% Edge 540T Assembly Manual Step 7. Installing the servos 1. Elevator servos. Trim away the covering from the rear sides of the fuselage to expose the two servo trays. At- tach a servo extension to the servo cord long enough to reach the receiver, and tie this servo connector together with dental floss or whatever you prefer.
Page 18 Throttle and (optional) choke servo installation. We recommend that a small servo be used to operate the choke as well as the throttle. This provides an extra level of safety by acting as a secondary engine kill mechanism in case of failure in the throttle control system.
Page 19 28% Edge 540T Assembly Manual Step 8. Install the landing gear There should be drilled holes in the landing gear plate under the covering, these should match up with the holes in the landing gear. Unfortunately the holes are not always there. To assure perfect alignment use the following procedure.
Page 20 28% Edge 540T Assembly Manual Steps 9, 10, 11. Installation of fuel system, radio and con- trol linkages These 3 subjects are combined on one page because this is the part where you get to do things your way. We have only done a few things to get you started.
Page 21 Please use good strong pushrods and other linkage parts. A sample of the assembly that we used is shown in the picture below. No- tice we use carbon fiber pushrods and rocket city horns. The servo connection is done with Sullivan 4-40 or Dubro clevises.
Page 22 28% Edge 540T Assembly Manual Step 12. Mounting the wings Push the 1.25 inch aluminum tube spar through the tube in the fuselage until it protrudes an equal distance on both sides. Carefully push each wing onto the tube until the anti-rotation dow- els engage the holes in the fuselage side.
Page 23 28% Edge 540T Assembly Manual Steps 13 and 14. Balance the plane and adjust control throws The first flight should be done with the plane balanced as shown in table below. If you can get it to balance a little farther forward it will add stability.
Page 24 Control Throws We set the control throws as follows on planes in test. Please keep in mind the high rates speci- fied here are for 3d, not for just faster response. The elevator in particular at these rates will cause instant stalling, tumbling, and all sorts of other things that can only be done at low speeds.
Page 25 28% Edge 540T Assembly Manual Quick start guide and hints. Read me first. This page is the place to start if you are an experienced builder. It will save you a lot of time. If you are not an experienced builder, read it anyway, you may not need to go any further.
Page 26 about 1/16” in front of it. The cowl mounts are already set, use the cowl face to align the engine. Right thrust is already built into the firewall. 3. Glue the hinges with whatever you like to use. I like pro-bond polyurethane or gorilla glue because it foams and fills the voids, but it makes a mess when it foams so clean it off.

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Extra 300lx Extra 300 special