How to assembly freewing zeus45 turbine jet Step by step step by step RC Aircraft

Pre-Assembly Preparation

Required Parts & Tools

1. Included factory parts: Split fuselage, main wings, horizontal/vertical stabilizers, pre-installed servos, electric landing gear with brakes, 1150cc main fuel tank + 150cc anti-bubble header tank, pre-routed fuel lines, insulated stainless tailpipe, engine mounting bulkhead
2. Extra components you must prepare:
   • Turbine engine (K45/X45/X60, matched mounting bracket)
   • Turbine ECU + fuel pump + ignition system
   • 6+ channel RC transmitter/receiver, flight gyro
   • Dual power supply: 2S LiPo (7.4V) for servos/gear/brakes; separate battery for turbine ECU
   • Fuel: Jet A1 / kerosene + turbine oil
3. Tools: Phillips screwdrivers (M3), hobby knife, zip ties, heat-shrink tubing, thread locker (blue Loctite), digital CG balance scale

Pre-Check All Components

1. Cross-check parts against the official spare parts list to confirm no missing brackets, screws, pipe fittings.
2. Inspect fuselage heat shielding around the turbine bay (critical to prevent EPO foam melting).
3. Test landing gear & brake servos manually to ensure free movement before installation.

Step 1: Install Exhaust Tailpipe (First Critical Step)

1. Slide the insulated dual-wall stainless tail nozzle into the rear fuselage tail section from the front opening.
2. Secure the tailpipe fixing bracket (Part A) using TM3��5mm screw + M3 nut, lock loosely first for alignment adjustment.
3. Align the tailpipe centerline perfectly parallel to the fuselage central axis (misalignment causes overheating & thrust loss).
4. Tighten tailpipe fasteners completely after alignment.

Step 2: Join Front & Rear Fuselage

1. Mate the front fuselage (cockpit/equipment bay) and rear fuselage (turbine/tail section) precisely along the locating pins.
2. Insert the fuselage connecting bolts from the bottom and tighten evenly (do not over-tighten to avoid cracking EPO foam).
3. Recheck tailpipe position once fuselage is joined to confirm no pipe shift.

Step 3: Mount Turbine Engine

1. Install the dedicated engine bulkhead into the fuselage turbine bay (pre-cut for K45/X45 engines). Secure the bulkhead with PWA3��12 screws.
2. Mount your turbine onto its custom locking bracket, slide the engine into the bay, connect the turbine exhaust outlet tightly to the front end of the installed tailpipe (use high-temperature silicone sealant at the joint to stop hot gas leakage).
3. Lock the engine fixing clips into place, lightly torque all engine mounting screws with blue thread locker to prevent loosening from vibration.
4. Leave 3�C5mm gap between turbine casing and fuselage foam for heat dissipation.

Step 4: Plumb Fuel System (Pre-installed tanks, only connect lines)

1. Route fuel lines: Main tank �� bubble header tank �� turbine fuel pump �� turbine fuel inlet. Cut silicone fuel tubing to custom length, use hose clamps on all joints to prevent air bubbles/fuel leaks.
2. Connect the tank vent tube to the fuselage external vent port; install the vent plug when parking the jet to avoid fuel spillage.
3. Mount the turbine fuel pump onto the pre-provided wooden pump bracket inside the equipment bay, fix with double-sided foam tape + zip ties to reduce vibration.
4. Perform a fuel leak test: Pressurize the tank gently, check every joint for seepage before powering the turbine.

Step 5: Assemble Tail Stabilizers

1. Attach the horizontal stabilizer onto the rear fuselage mounting pins, secure with hidden screws from underneath.
2. Install vertical stabilizer onto the fuselage upper rear socket, lock the built-in hinge fastener.
3. Connect elevator/rudder control linkages to factory pre-installed tail servos:
   • Set servo horns to neutral (servo centered via transmitter first).
   • Adjust linkage length so elevator/rudder sit perfectly level at neutral radio position.
   • Secure linkage clevises with small retaining pins to avoid falling off in flight.
4. Use a right-angle ruler to verify horizontal tail ? vertical fin form a perfect 90�� angle.

Step 6: Install Main Wings (Quick-Screwless Quick-Release Wings)

1. Insert the left & right wing carbon spars into the fuselage wing sockets fully until seated.
2. Lock the wing quick-release latches on both sides of the fuselage (no screws required for field assembly). Shake the wings firmly to confirm no play or looseness.
3. Connect the aileron servo extension wires from wings to the fuselage internal wiring harness via plug connectors.
4. Adjust aileron linkages to set neutral aileron flat and equal up/down travel (��18�� recommended for sport flight).

Step 7: Electronics Wiring & Receiver Setup

Wiring Layout Rules (Avoid RF interference)

1. Separate two independent power circuits to eliminate voltage interference:
   • Circuit 1 (2S 7.4V LiPo): Powers all flight servos, landing gear, brakes, navigation LEDs, onboard gyro. Fit a UBEC for stable 6V servo power Freewing-m... .
   • Circuit 2 (separate LiPo): Exclusive power for turbine ECU & ignition system (never share this battery with flight servos).
2. Mount receiver & gyro in the forward cockpit equipment bay (away from fuel pump/turbine to avoid RF noise). Route receiver antenna forward outside the fuselage.
3. Wiring channel mapping on flight control board:
   • RUD = Rudder��ELE = Elevator��AIL = Aileron��GEAR = Landing Gear��BRAKE = Brake channel
4. Bind receiver to your radio transmitter, then complete servo reverse & travel adjustment in radio settings.
5. Install navigation LEDs to the reserved wiring plugs on the fuselage nose/wings.

Step 8: Landing Gear & Brake Commissioning

1. All electric retractable landing gear is pre-installed inside fuselage wheel wells. Connect gear servo wire to the GEAR channel of the flight board.
2. Link brake control wire to the brake channel, test brake function via transmitter: check brake clamping & release smoothly without jamming.
3. Test retraction/extension repeatedly 10 times to confirm no gear binding; adjust wheel well doors if they catch the struts.

Step 9: Pre-Flight Calibration & CG Setting (Extremely Important)

1. Servo & Turbine Bench Test

• Power on radio system, check full movement of ailerons/elevator/rudder/gear/brakes, confirm no binding or reversed directions.
• Complete turbine ECU calibration per your turbine brand��s manual (priming pump, ignition test, idle setup). Never start the turbine indoors.

2. Center of Gravity (CG) Calibration

1. Remove all fuel, place the jet on CG balancing stands at the specified position.
2. Shift the 2S flight battery forward/back inside the nose battery compartment until the jet balances level (slight nose-down static balance is safer for turbine jets).
3. Lock the flight battery with hook-and-loop straps + foam bracing to prevent battery shift during flight.

Step 10: Final Safety Inspection

1. Re-tighten all engine, tailpipe, wing mounting screws with thread locker.
2. Check all fuel lines again for leaks, secure loose wiring with zip ties.
3. Confirm turbine heat shielding is intact, no foam exposed near hot exhaust components.
4. Do a full range test of the RC system at 100m distance.

Field Assembly (5-Minute Quick Setup After Home Build)

1. Lock both main wings onto fuselage latches.
2. Plug wing servo connectors into fuselage harness.
3. Install nose cone, fill fuel tank, connect flight & turbine batteries.
4. Check CG one last time, then perform turbine start sequence following turbine ECU instructions.

Critical Safety Warnings

1. Keep flammable items at least 3m away during turbine startup; stand to the side of the exhaust (jet exhaust reaches 600C+).
2. Never run the turbine without the tailpipe installed (will burn fuselage foam instantly).
3. Always use dedicated turbine kerosene fuel; gasoline is forbidden.
4. This is a high-speed turbine jet, only fly on paved runways with turbine jet flight experience.