Modellbau Lindinger GmbH EXTRA 300EXP Electric ARF 1 Modellbau Lindinger GmbH Alte-Post-Str. 14 A-4591 Molln e-Mail: office@lindinger.at www.lindinger.
Modellbau Lindinger GmbH Greetings and congratulations on your purchase of the Extreme Flight RC Extra 300EXP ARF. Loosely based on our favorite variant of the Extra, the mid-wing Extra 300, we have taken numerous liberties with this design to produce an aircraft that is both unique in appearance and flight ability. The designation 300EXP does not belong to a full scale Extra, but stands for Experimental Progressive.
Modellbau Lindinger GmbH 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. 3. Use a fresh bottle of thin CA with a fine glue tip when attaching the CA hinges.
Modellbau Lindinger GmbH Items needed for completion -masking tape -Thin and medium CA. We highly recommend Mercury M5T thin and M100XF medium formulas as well as the Mercury glue tips. -30 minute epoxy. I have used Pacer Z-Poxy for many years and it is a terrific product. It cures in the allotted time and forms a permanent bond. -Blue Loctite. -Silicon based glue (Zap-A-Dap-A-Goo, etc.) -Electric drill with an assortment of small drill bits. -Small flat head and Phillips head screw drivers.
Modellbau Lindinger GmbH 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. Locate the 4 carbon fiber pushrods and 4 micro ball links in the hardware package. Lightly scuff one end of each pushrod. 2. Mix up a small batch of 30 minute epoxy.
Modellbau Lindinger GmbH 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. Locate the 2 wing panels with ailerons as well as the 2 G10 aileron control horns.
Modellbau Lindinger GmbH 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 Modellbau Lindinger GmbH Alte-Post-Str. 14 A-4591 Molln e-Mail: office@lindinger.at www.lindinger.
Modellbau Lindinger GmbH 7. Remove the covering from the aileron servo location and make sure the hinges are centered in their slots. 8 Modellbau Lindinger GmbH Alte-Post-Str. 14 A-4591 Molln e-Mail: office@lindinger.at www.lindinger.
Modellbau Lindinger GmbH 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 CA. 9. Use the screws provided by the servo manufacturer to secure the aileron servo in the designated location. 1 screw installed in the center hole at each end of the servo is adequate to secure the servo.
Modellbau Lindinger GmbH 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.
Modellbau Lindinger GmbH 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.
Modellbau Lindinger GmbH 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. Make sure that the servo arm is perpendicular to the servo case when the aileron is in the neutral position. 12 Modellbau Lindinger GmbH Alte-Post-Str. 14 A-4591 Molln e-Mail: office@lindinger.at www.
Modellbau Lindinger GmbH Here is a photo of the completed installation. Repeat this process for the other wing half. 13 Modellbau Lindinger GmbH Alte-Post-Str. 14 A-4591 Molln e-Mail: office@lindinger.at www.lindinger.
Modellbau Lindinger GmbH 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. Make sure to use a drop of blue Loctite on each screw to prevent them from backing out. 14. Locate the 2 axles, 2 locking nuts, 2 wheels, 2 wheel collars and 2 wheel pants from the hardware package.
Modellbau Lindinger GmbH 15 Modellbau Lindinger GmbH Alte-Post-Str. 14 A-4591 Molln e-Mail: office@lindinger.at www.lindinger.
Modellbau Lindinger GmbH 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. Sand or shim the slot if necessary. Secure the stabilizer with CA. 16.
Modellbau Lindinger GmbH 17 Modellbau Lindinger GmbH Alte-Post-Str. 14 A-4591 Molln e-Mail: office@lindinger.at www.lindinger.
Modellbau Lindinger GmbH 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. Scuff the portion of the control horn that will glue into the surface and secure the rudder control horn with medium CA. 18 Modellbau Lindinger GmbH Alte-Post-Str. 14 A-4591 Molln e-Mail: office@lindinger.
Modellbau Lindinger GmbH 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. Make sure the pivot point of the assembly is over the hinge line of the rudder for best results. 19 Modellbau Lindinger GmbH Alte-Post-Str.
Modellbau Lindinger GmbH 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. 23. Use the hardware provided with the servos to install the rudder and elevator servos in their respective location in the rear of the aircraft.
Modellbau Lindinger GmbH 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. Secure the arm with the provided screws and bolts.
Modellbau Lindinger GmbH 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. Mount the motor using the supplied 3mm black socket head cap bolts which are threaded into the blind nuts which are pre-installed in the motor mount plate.
Modellbau Lindinger GmbH 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. Monitor your motor temperatures and if necessary use the baffles.
Modellbau Lindinger GmbH 26. For quick, easy and accurate mounting of the cowl we recommend the following method. Tear 4 short pieces of masking tape from a roll. Place each piece of tape on the side of the fuselage so that each piece corresponds with one of the 4 cowl mounting tabs. Use a fine tipped marker to mark the location of the center of each mounting tab. Roll the tape back and slide the cowl into position.
Modellbau Lindinger GmbH 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. There is an opening in the cowl just in front of this location to allow cooling air to enter and be directed over the ESC. 29.
Modellbau Lindinger GmbH 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. Each SFG mounts using 2 small wood screws with large heads and 2 clear plastic washers.
Modellbau Lindinger GmbH 27 Modellbau Lindinger GmbH Alte-Post-Str. 14 A-4591 Molln e-Mail: office@lindinger.at www.lindinger.
Modellbau Lindinger GmbH Set-up and flying tips Start by balancing your aircraft on the center of the carbon fiber wing tube. There is plenty of room on the battery tray to move your battery to achieve this CG location. This is a safe place to start and depending on your flying style you can adjust the position of the battery to alter the CG to accommodate your flying style.
Modellbau Lindinger GmbH 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.
Modellbau Lindinger GmbH Another strong attribute of the EXP is its knife edge capability. The forward canopy placement gives the aircraft very stable KE performance and when coupled with the SFGs the rudder authority is amazing. Huge round KE loops with backside recovery just above idle are the norm for the EXP. Super slow high alpha KE passes are no problem. The included SFGs can also act as "training wheels" when learning the harrier maneuver.
