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AEROMASTER Extra330L-50CC Instruction Manual

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Extra330L -50CC
Instruction Manual
Congratulations and thank you for purchasing Aeromaster s30% Extra330L. The Extra is
arguably one of the most renowned aerobatic aircraft ever produced. Walter Extra who originally designed the
Extra, named his aircraft by the horsepower rating of the motor placed in them. What is an Extra330L? It s a
common question we hear frequently. A full scale Extra330L is really just an Extra300L fitted with a more
powerful 330hp Lycoming AEIO 540 engine, these aircraft have been nicknamed the Extra330L.
Our aircraft was designed with 1,420 sq inches of wing area while keep the total weight to a minimum.
Whether you want an aircraft precise enough to compete in IMAC or 3d until your airsick, we believe our Extra
fits the bill. It s light weight gives you the stability in high-alpha to take it to the extremes of the flight
envelope. If tumbling maneuvers are your thing, our Extra330L will deliver with picture perfect waterfalls and
blistering tip spins that are not for the faint of heart.
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Summary of Contents for AEROMASTER Extra330L-50CC

  • Page 1 Extra330L -50CC Instruction Manual Congratulations and thank you for purchasing Aeromaster s30% Extra330L. The Extra is arguably one of the most renowned aerobatic aircraft ever produced. Walter Extra who originally designed the Extra, named his aircraft by the horsepower rating of the motor placed in them. What is an Extra330L? It s a common question we hear frequently.
  • Page 2 We believe you will find this to be one of the finest flying and easiest to assemble aircraft in the market. Most modelers will find assembly of this aircraft simple and straightforward. We recommend the builder follow the step-by-step instructions to achieve the best performance and to ensure nothing was over looked. This manual also includes tip sections throughout that may help you in key areas during assembly.

  • Page 3: Chapter 1 Parts Inventory

    6 4/40 ball links 1 Set of additional various hardware 1 Vinyl graphics package 1 Pair of wing bags 1 Fuselage cover 1 Pair of stabilizer bags If any of these parts are missing immediately contact Aeromaster Aircraft during normal business hours.

  • Page 4: Chapter 2 Preparation For Assembly

    Chapter 2 Preparation for Assembly Professionals utilizing premium Ultracote covering carefully covered your model. Due to climate changes during shipping, the models covering may have loosened and/or winkled. It's a good habit to go over your model with a covering iron to ensure all joints, seams, and edges are properly sealed. Ultracote is a temperature sensitive film that seals and shrinks at lower temperatures.
  • Page 5 Chapter 3 Landing Gear and Tail Wheel Assemblies Now that we re ready for assembly, we are going to start with the main landing gear first. You will need to locate the following parts to begin assembly. Place an to ensure task completion: What you will need in this chapter for the main gear: Fiberglass main gear One pair of 3 / inch wheels...
  • Page 6 1. Use a Dremel or suitable device and trim the center wheel opening on the wheel pants on the side with the wood- mounting block. Trim the center of the wheel pants to fit the axle heads using the wood block as guide (figure 8 and 2.
  • Page 7 Tail wheel assembly and mounting: What you will need for the tail wheel assembly and tiller: Carbon fiber tail wheel bracket with packaged hardware One metal tiller assembly Fuselage and rudder Not Provided: A cross tip screwdriver (Phillips) One small Allen wrench for the wheel collars Blue loc-tite A drill and a small pilot drill bit 7.
  • Page 8 12. Install the steel tiller horn just behind the hinge line on the bottom of the rudder using the two small wood screws (figure 25, 26, and 27). Set aside your two tiller springs, we will install those later after the rudder is mounted. Chapter 4 Canopy Hatch and Cowling Place an...
  • Page 9 5. Install the canopy using the small wood screws.If satisfied with the fit,remove the canopy and hatch and wick a small amount of thin CA into each of the screws holes on the hatch.Once dried, reinstall canopy with optional canopy glue if desired.Caution! CA will fog the canopy if installed before completely drying (figure 30, 31, and 32).
  • Page 10 Chapter 5 Engine and Firewall Installation Your firewall is not pre-mounted so our customers can select from a wide variety of engine choices. It is nearly impossible to cover every engine installation choice in this manual but we ll cover a few. Your Extra330L was designed around the more popular lightweight gas (3 to 3 / lbs) 50cc size motors.
  • Page 11 3a. Using the pre-marked offset centerline and thrust line as a guide, use a pencil and mark your drill locations for you engine beam mount holes (figure 40). 4a. Once satisfied with your measurements, center punch you re mounting locations and drill using the appropriate sized bit (figure 40 and 41). 5a.

  • Page 12: Chapter 6 Cowling Installation

    8a. You will need to make some additional standoffs to achieve correct engine placement. You will want at least a / of an inch clearance from the back of the spinner to the front of the cowl. The distance from the spinner back plate to the firewall should be approximately 6- 13/16 inches (figure 49).
  • Page 13 1. First cut out the bottom opening for cooling. If using longer exhaust stacks, it maybe necessary to cut away the bottom portion of the cowl ring for the cowling to pass the exhaust (figure 51 and 52). 2. Measure and cut an opening for the cylinder head and muffler just enough to get the cowl mounted (figure 53 and 54).
  • Page 14 Place an to ensure task completion: What you will need in this chapter: One pair of wing panels with ailerons One pair of horizontal stabs with elevators All of the hinge point hinges provided One Airframe Four carbon fiber push rods Eight metal push rod ends One entire set of aluminum control horn assemblies Six 4/40 ball links...
  • Page 15 4. Starting with the elevators, measure from the root 1-1/16 inch in and / inch back from the leading edge to find and mark your horn bolt location. Make sure you mark the locations on the bottom of the control surfaces. Repeat this step for the other elevator half (figure 61 and 62).
  • Page 16 9. Now were going to prep the hinges for installation. Take a small drop of oil and place it in each of the pivot points of your hinges. The oil prevents excess epoxy from bonding the joint (figure 72). 10. Working with one panel and control surface at a time, apply epoxy into the hinge holes of the trailing edge.
  • Page 17 15. Screw in the metal pushrod ends three quarters of the way into each horn for the elevators and ailerons. 16. If you have not done so already, screw in the remaining metal pushrod ends three quarters of the way into each 4/40-ball links and mount the ball links to your servo arms.
  • Page 18 23. If satisfied with the fit, mix the JB weld or use the Rubber CA and apply a liberal amount into the metal pushrod ends. Insert the CF rods and rotate them one turn to ensure they have been covered with the weld or CA.
  • Page 19 27. Lets install the wings at this time and check our center of gravity (CG). Install the carbon fiber wing tube. Slide in each wing panel and secure them with the two nylon wing retention bolts (figure 89). Tip#6 If the wing tube is tight you can coat the tube with a little baby powder to aid the insertion of the wing panels.
  • Page 20 Chapter 9 Radio and Control Surface Setup Now we are ready to setup your aircraft for flying. We recommend that you set your aircraft on low rates for initial flights until you become familiar with the aircraft and its capabilities. The recommended low rates for this aircraft are: 25 degrees for ailerons with 0 to 20% expo 12 degrees for elevators with 0 to 20% expo...
  • Page 21 Lets go over the airframe and perform a pre-flight to make sure everything is in order. Inspect the airframe for any visible damage and loose covering that may have occurred during assembly. Inspect the main landing gear and tail wheel assembly. Ensure all mounting hardware and collars are fastened properly.
  • Page 22 We believe you will find this aircraft to be one of the most enjoyable 30% aircraft you ve ever flown. This airplane is truly a wolf in sheep s clothing. On low rates our Extra330L will deliver the smooth performance the Extra is known for.