Fei Bao MB-339 Instruction Manual

Summary of MB-339

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    1 fei bao mb–339 instructions disclaimer t his is not a toy . This is a high-performance miniature aircraft, capable of high speeds and damage to life, limb, and property. The manufacturer and its distributors cannot control how you assemble this model, what equipment you use to fit it out, or how y...

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    2 turbine models are critical. Keep this in mind with everything you do, every part you install...Look at the work you just did, evaluate it critically, and ask yourself "is this going to potentially crash my airplane?" if there is any doubt about the work you have done, back up, and re-do it proper...

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    3 construction preliminary steps • clean and inspect all parts. Inventory them against the parts list at the end of the manual and notify the kit supplier of any missing components as soon as possible. • if the paint scheme you have selected is glossy, it is recommended that you apply a coat of wax....

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    4 step 1: check forward fuselage remove the fuel tanks from the fuselage. Also remove the two forward component boards. Now would be a good time to put a coat of paint on these parts if you would like to protect the wood surfaces. Vacuum and thoroughly clean the fuselage. If the nose gear was instal...

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    5 you should also notch the vent tube with a small file to provide for continued air flow should the tube come into contact with the top of the tank. Make sure the bends to the vent tubes applied at the factory have not restricted airflow to any significant extent. Also, check the tygon for any nick...

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    6 position the center tank on top of the intakes, far enough aft of the canopy area to allow clearance for the fuel lines. Fashion a rear tank support from ¼” scrap ply and position it on top of the intake extension. You will need to radius this piece slightly with a dremel tool to match the incline...

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    7 connect this “t” fitting to the vent line of the center tank. Connect the two vent lines together from the saddle tanks with a “t” fitting. Photos 8 and 9 – securing intake and rear tank stop attach this “t” fitting to a fuselage vent fitting. It is suggested you place this just ahead of the right...

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    8 connect the fuel pickup from the center tank to the optional uat or to the fuel pump. In the prototype, the uat is located just above the right intake. ( photo 11 ). Step 4: nose gear working from inside the aircraft, screw the nose steering servo to the bracket ( photo 12 ). Do not use rubber gro...

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    9 in the prototype, the larger of the three air tanks serves the gear and doors, while the smaller tanks serve brakes and air brake respectively. Refer to the general construction tips for an explanation on gearing up the air systems. Install three air tanks in the space beneath the forward componen...

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    10 tape wrapped around the cutter at the proper depth will help prevent a mishap. Roughen the surface of the control arm where it will glue into the rudder with 100 grit sandpaper. Tape around the slot with masking tape and apply a liberal amount of aeropoxy into the slot ( photo 16 ). Photo 16 – in...

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    11 proper diameter was achieved with a conical bit and then the depth was cut with a small carbide cutter ( photo 18 ). Slip one horizontal stab on the spars and secure with a bolt ( photo 19 ). Loctite. Photos 18 and 19 – installation of horizontal stabilizer bolt push the spars fully into the stab...

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    12 step 9: aft fuselage drill a hole in the pipe mounting tabs at their mid-point. Position the pipe on the rear of the lower bypass. The tabs are slightly offset to one side of the pipe … this is the top. With the pipe fully on the lower bypass, and the mounting tabs equally spaced from the top, dr...

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    13 photo 23 – engine mounted in lower bypass shim the engine as necessary to make sure it is centered in the pipe and is aligned with the slope of the pipe from front to rear. When you are satisfied, bolt the engine to the side frames with wood screws. Remove the screws and coat the thread holes wit...

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    14 photo 26 – enlarge air line and servo wire access hole in wing root extend main gear, remove the small screw that attaches the strut cover linkage to the strut, and remove the main gear. Put a drop of thin ca into each screw hole to strengthen the ply in the area of the bolts. If not already done...

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    15 photo 28 – completed main gear and door installation step 11: aileron and flap servos remove the aileron and flap servo covers. Mark the inside front of the covers so you will know how to orient them for re- assembly. Attach the aluminum l brackets to the servos as you did for the tail surfaces. ...

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    16 set the wings aside for the glue to cure. Double check to make sure there are no fingerprints or excess glue on the wing surfaces. When the glue has cured, install the linkages. Insert the wing tip tanks into the mounting holes. When the pins are fully inserted, tighten the locking clamp bolts th...

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    17 photo 31- use the cockpit as a template to trim the back of the aft tub to shape attach the rear instrument panel to the tub in the same fashion ( photo 32 ). Photo 32 – glue the rear tub and instrument panel into the cockpit frame carefully fit the front tub into place, trimming as necessary. Gl...

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    18 step 16: weight and balance test fuel the aircraft. Check for leaks, then drain. Set your cg. For the initial flights, the plane should balance slightly nose down with the cg on the wing spar, fuel in the uat only, with the gear down. Adjust cg as necessary. Step 17: test flight before any test f...

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    19 photos 36 and 37 – left side – receiver batteries, switches and air gauges parts list • forward fuselage and component boards • aft fuselage • engine hatch • canopy • horizontal stabs, elevators (2) • carbon fiber spars for horizontal stabs (2) • vertical fin, rudder • wings, flaps, ailerons (2) ...