• 6-channel RC Transmitter + Receiver
• 3S 11.1V LiPo battery (1300�C2200mAh, XT60 plug)
• LiPo balance charger

Step 1: Main Wing Assembly (Most Critical Step)

1. Insert the threaded metal wing spar into the fuselage opening. Use the supplied metal locking key to tighten the spar firmly.
2. Route servo wires from left & right wing halves through the fuselage wing cutout.
3. Slide each wing half onto the spar and push inward until you hear a clear "click" (fully locked).
4. Connect wing servo plugs to the two supplied Y-harnesses:
   • One Y-cable for Ailerons
   • Second Y-cable for Flaps

Do NOT force fit wings; check wiring is not pinched between wing & fuselage.

Step 2: Horizontal Stabilizer (Tailplane)

1. Slide the horizontal stabilizer straight into the tail slot on the fuselage.
2. Push fully forward until an audible click confirms locking.
3. Keep elevator servo at neutral position on your radio. Attach elevator pushrod: connect to the outermost holes on servo arm AND elevator control horn.

Step 3: Install Wingtips (Winglets)

Step 4: Receiver Wiring Setup

1. Channel 1 �� Aileron
2. Channel 2 �� Elevator
3. Channel 3 �� Throttle
4. Channel 4 �� Rudder
5. Channel 5 �� Spare
6. Channel 6 �� Flap
   Tuck all loose wiring neatly into the cavity inside the battery hatch area.

Step 5: Battery Installation & CG Check

1. Open the canopy latch and remove battery hatch.
2. Attach hook-and-loop tape to your LiPo battery. Secure battery inside fuselage with built-in straps.
3. Connect XT60 battery plug to ESC plug.

CG (Center of Gravity): 45�C60 mm back from wing leading edge at root

Shift battery forward/back to hit correct CG. Wrong CG causes unstable flight!

Step 6: Pre-Flight Control Test

1. Power on transmitter FIRST, then connect flight battery.
2. Check all surfaces respond correctly:
   • Ailerons: Stick right �� right aileron up, left down
   • Elevator: Stick back �� elevator deflects upward
   • Rudder: Left stick �� rudder moves left
   • Flaps: Channel 6 dial/slider lowers both flaps evenly
3. Verify folding prop spins freely with throttle input.

Important Safety Notes

• Always disconnect battery after finishing flying.
• Do not fly with loose click-fit components; re-seat any part that does not lock with a click.
• EPO foam is brittle against sharp impacts; handle wings carefully during assembly.
• For thermal/gliding flight, set low throttle; use flaps for slower landing approaches.

Arrows Hobby SZD-54 2000mm Radio Setup Template

1. Basic Travel & Subtrim (Baseline Values)

• Aileron travel: ��22��
  Low rate: 65% | High rate: 100%
• Elevator travel: ��18��
  Low rate: 70% | High rate: 100%
• Rudder travel: ��25��
  Low rate: 75% | High rate:100%
• Flap travel:
  Position 0 (Cruise): 0��
  Position 1 (Thermal/Slow): 12�C15�� down
  Position 2 (Landing flap): 25�C30�� down

Set all servos to neutral before installing linkages!

2. Critical Mixes (Must set for glider)

Mix 1: Flap �� Elevator (Elevator compensation)

• Mix: FLAP �� ELEVATOR
• Direction: Positive (elevator rises slightly with flaps)
• Slow flap setting: +6%
• Landing flap setting: +12%

Mix 2 (Optional): Aileron �� Rudder (Coordinated turn)

• Mix: AILERON �� RUDDER
• Value: +15%
  Activate only on HIGH rate flight mode.

3. Flight Mode Switch Suggestion

• Position UP: Cruise (0�� flaps �C normal soaring)
• Position MID: Thermal flaps (12~15�� flaps, slow flight for thermals)
• Position DOWN: Landing flaps (max flaps for short landing)

4. Throttle Setup (Powered sailplane)

• Throttle curve: Linear default
• Recommended flight practice: Use throttle only for launch/climb. Cut throttle once at altitude for pure gliding.
• Safety tip: Program throttle cut switch if your radio supports it.

5. Differential Aileron (Strongly recommended)

• Up aileron travel: 100%
• Down aileron travel: 70�C75%

6. Pre-flight radio checklist

1. Transmitter ON first, then connect flight battery
2. Confirm all control surfaces move in correct direction
3. Toggle flap switch through all three positions, check elevator compensates automatically
4. Switch high/low rates and verify travel changes
5. Test motor response: throttle up �� prop spins forward
6. Double-check CG at 45�C60 mm behind wing leading edge (wing root)

7. Flight tuning tips

1. If model wants to climb when flaps deploy: increase FLAP��ELEV mix value
2. If model yaws heavily during turns: increase aileron-rudder mix
3. If turns feel sluggish: slightly raise high-rate aileron travel
4. For windy days: fly mostly on low rates, avoid full elevator input

3. Dual Rate & Expo (D/R & EXP)

• Aileron Expo: -22%
• Elevator Expo: -20%
• Rudder Expo: -15%

Maiden flight: ALWAYS fly on LOW rate.

4. Aileron Differential (AIL DIFF �C Highly Recommended)

• Up aileron: 100%
• Down aileron: 72%
  Reduces adverse yaw during turns.

5. Programmable Mixer Setup (PROG.MIX 1 & 2)

Mix 1: FLAP �� ELEVATOR (Flap compensation �C MOST IMPORTANT)

• PROG.MIX 1
• Source: FLAP
• Destination: ELEV
• Mix value: +12%
• Switch: SW-F (3-position flap switch)
• Curve: Linear

Tuning tip: If aircraft dives when flaps down �� increase to +15%; if climbs sharply �� lower to +8%.

Mix 2: AILERON �� RUDDER (Coordinated turn)

• PROG.MIX 2
• Source: AIL
• Destination: RUD
• Mix value: +15%
• Switch: Same D/R switch (Only active on HIGH rate)
• Curve: Linear

6. 3-Position Flap Switch Assignment

1. SW-F UP = Cruise: Flaps 0�� (0% travel)
2. SW-F MID = Thermal slow flight: Flaps 12�C15��
3. SW-F DOWN = Landing flaps: Flaps 25�C30��

1. Open LINKAGE �� FLAP SETTING
2. Set offset values for each switch position to lock 3 fixed flap angles.
   If your radio lacks dedicated flap setting: Adjust CH6 travel limits for each switch position inside programmable mix.

7. Throttle Configuration

• Throttle curve: Linear
• Enable THROTTLE CUT (assign spare switch) for safety.
  Flying tip: Use motor only for climb; cut throttle to thermal glide.

Pre-Flight Radio Checklist (Do every flight)

1. Transmitter ON FIRST �� connect flight battery
2. Cycle SW-F three positions: confirm flaps move stepwise, elevator compensates upward
3. Toggle D/R switch; verify control travel changes
4. Test aileron stick: check coordinated rudder movement on high rate
5. Verify motor spins forward with throttle up
6. Confirm CG: 45�C60 mm behind wing leading edge at wing root

In-Flight Fine Tuning Tips

1. Aircraft pitches down with flaps �� raise FLAP��ELEV mix
2. Yaw outwards during turns �� increase AIL��RUD mix
3. Slow thermal flight feels unstable �� slightly reduce landing flap angle
4. Windy weather: stay on LOW rates, avoid large elevator inputs