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Summary of Contents for Extreme Flight EXTRA 300EXP
- Page 1 EXTRA 300EXP Electric ARF 1 ...
- Page 2 300EXP does not belong to a full scale Extra, but stands for Experimental Progressive. This name was chosen due to the fact that from its inception the Extra 300EXP was developed as a test bed for several new forward thinking design and aerodynamic concepts. Having spent several months in development, flight testing and refinement, we are very excited about the end result of our quest.
- Page 3 Tips for Success: 1. Before starting assembly, take a few minutes to read the entire instruction manual to familiarize yourself with the assembly process. 2. Please take a few minutes and go over all the seams on the aircraft with a covering iron on a medium heat setting.
- Page 4 LiPos available from www.hobbycity.com in both 2170 mah and 2350 mah sizes. -APC 12x6 E prop (NOT the slow fly version!). -52mm Extreme Flight spinner. -2 18"-24" extensions for the 2 rear servos and 2 6"-8" extensions to go between the receiver and the aileron servo leads.
- Page 5 Highlighted text has been changed. Please note new procedure on the right of the page Let's begin! 1. So that we don't have to wait for the 30 minute epoxy to dry in a later step, let's go ahead and prepare the 4 carbon fiber pushrods and ball links for later use.
- Page 6 3. Use a paper towel to wipe away most of the excess epoxy, leaving a small fillet between the carbon pushrod and ball link. Position the pushrods vertically while they cure as illustrated so the fillet remains in position. DO NOT use CA for this bond! 4.
- Page 7 6. Use a glue tip on your bottle of medium CA and apply glue to the slot as well as to both sides of the control horn. Insert the control horn into the slot and make sure it seats properly against the surface of the aileron. 7 ...
- Page 8 7. Remove the covering from the aileron servo location and make sure the hinges are centered in their slots. 8 ...
- Page 9 8. Slide the aileron into position on the hinges and secure with several drops of fresh thin CA. This process is much easier and more effective if a fine glue tip is used. Make sure to deflect the surface as pictured while applying the 9.
- Page 10 10. Use a 5/64" drill bit to enlarge the outermost hole in the nylon servo arm that is provided with the servo. Use the longest arm included. Locate one of the EZ connectors and insert the shaft of the connector into the 5/64" hole. A drop of oil placed on the shaft of the connector will ensure that it moves freely within the hole.
- Page 11 11. Two of the carbon pushrod/ball link assemblies are the same size. These are the aileron pushrods. In addition locate 2 silver 2 mm screws, washers and nuts from the hardware package. Secure the ball link side of the pushrod to the aileron control horn on the side of the horn that will be closest to the fuselage by inserting a 2mm bolt into a washer, then through the hole in the brass ball and finally through the hole in the G10 control horn.
- Page 12 12. Secure the carbon pushrod to the EZ connector with the provided set screw. Take care not to over tighten the set screw and crush the carbon rod. Once you feel the set screw engage the carbon pushrod another 3/4 to 1 turn will supply adequate pressure to retain the pushrod.
- Page 13 Here is a photo of the completed installation. Repeat this process for the other wing half. 13 ...
- Page 14 13. Locate the fuselage, one piece carbon fiber landing gear, 2 silver 3mm machine screws and 2 washers. Secure the landing gear to the fuselage by inserting a 3mm screw into a washer, through the carbon fiber gear and into the pre-installed blind nut in the fuselage.
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- Page 16 15. Locate the horizontal stabilizer/elevator assembly and slide the elevator off of the hinges. Insert the stabilizer into its slot and the carbon fiber wing tube into the fiberglass sleeve. Use a ruler to insure that the stabilizer is centered in its slot and compare the stabilizer to the wing tube to make sure it is properly aligned.
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- Page 18 17. Slide the elevator onto the hinges in the stabilizer and secure with thin CA. Again a fresh bottle of CA and a fine glue tip work best here 18. Remove the covering over the slot in the lower left side of the rudder where the rudder control horn will be installed.
- Page 19 19. Using the same process as with the ailerons and elevator, slide the rudder onto the hinges and secure to the vertical stabilizer with thin CA. 20. Locate the carbon fiber tailwheel assembly in the hardware package. Secure the tailwheel bracket to the bottom rear of the fuselage with the provided wood screws.
- Page 20 21. Secure the tiller using the provided screw, but do not over tighten as the tiller should be able to move on the screw as the ruder is deflected 22. Place the tailwheel wire in the proper position, aligned with the rudder and lock into place with the 2 set screws.
- Page 21 24. The rudder servo linkage assembles and is installed just like the aileron linkage. The previous picture illustrates this installation. For maximum elevator travel we have included a G10 control horn which is bolted to the stock control horn provided with the servo. We have found it easiest to tack glue the G10 arm to the nylon arm and then using the holes in the nylon arm as a guide, drill through the composite arm.
- Page 22 25. We have included 2 plywood spacers in order to accommodate several motor lengths. If using the Torque 2814T/820 no spacer is required. If using the Torque 2818T/900 glue both of the supplied spacers together and place them between the motor mounting plate and the radial mount supplied with the motor.
- Page 23 This is a picture of the Torque 2818T/900 installed with the 2 ply spacers in place. Also notice the laser cut baffles. A set of these is included which can be attached to the motor box to improve cooling by directing air over the motor. We have not found this necessary but we have yet to fly the aircraft on a hot summer day.
- Page 24 Roll the tape back and slide the cowl into position. Install an Extreme Flight 52mm spinner onto the motor shaft for reference and once satisfied with the cowl position roll the tape back into place and secure the cowl.
- Page 25 27. There is a laser cut opening in the bottom of the fuselage under the rear of the canopy. Use a sharp hobby knife to remove the covering from this location to allow cooling air to exit the fuselage. 28. Use nylon cable ties or Velcro to secure the ESC to the bottom of the motor box.
- Page 26 30. Because the spring loaded hatch latch gets used every flight, the covering around this area starts to show wear pretty quick. We have included a piece of pre-cut vinyl to place over the latch area to prevent this. 30. If using the included Side Force Generators now is the time to mount them.
- Page 27 27 ...
- Page 28 3D flight will allow you to experience the best attributes of the Extra 300EXP or any aircraft for that matter. The included elevator servo arm will allow for close to 80 degrees of throw! While...
- Page 29 Here are some suggested rates to get started with. These are the rates and exponential values I feel comfortable with. They may feel awkward to you and if so please adjust to your taste. Elevator: Low rate-8-10 degrees; 15-20% Exponential 3D rate-45-50 degrees;...
- Page 30 We have had a blast during the development and testing stages of this aircraft and I sincerely hope the Extra 300EXP provides you with as much joy and excitement as it has for me. See ya at the flying field! 30 ...
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