
Blade® 200 SR X Advanced Settings and Setup Guide
These procedures are onl y nec essary i n special circumstance s, such as after a crash or if a servo or
linkage was replaced. All of the settings are stored in the receiver and are maintai ned eac h time y ou
initialize the model.
Trim Flig ht
Perform this procedure if the model is not performing well or has been recently rebuilt from a crash.
The trim flight proc edur e was perf ormed during the factory test flight and only needs to be perform ed if
you notice the model is not returning to level consistently or if the model does not remain still during
stationary pirouettes. The trim flight is used to determi ne the optim al S AFE ™ settings during flight. The
trim flight must be perf ormed in calm conditions.
Entering Trim Flight Mode
1. Lower the throttle stick to the lowest position. If your transmitter utili z es mechanical trims (like the
included RTF tr ansmit ter), set the throttle trim to t he highest position. Set all other trims to the
center position.
2. Power ON the transmitt er .
3. Install the flight battery on the helicopter. Secure the flight battery with t he hook and l oop str ap.
4. Connect the batt er y connector to the ESC.
5. Place the helicopter on a flat surface and leave it still until the motor beeps twice and the blue
ESC LED glows solid, indicating initialization is complete.
6. Place the helicopter where you are goi ng to take off.
7. Move and hold the left stic k to the bot tom left corner and the right stick to the top left corner. See
illustration.
8. Press and hold the bind/panic switch until the swashpl ate smoothly rotates around once.
9. Release the sticks and bi nd/panic switch.
10. The model is ready for the trim flight.
Trim Flight
1. Slowly increase the t hr ott le to lift the model into a stationary hover and make correcti ons as
necessary to keep the model still. Evaluation does not begin until the throttle stick is over 50%
and the sticks are cent er ed. Maki ng c or r ec tions will not affect the result but a longer flight may be
necessary.
2. Try to keep the model stationary in a hover for a total of 30 seconds. Slidi ng and slow movem ents
are okay. The main goal is to keep the rotor disk level.
3. Once you are sati sfied with the trim flight, land the model.
Exiting Trim Flight M ode
1. Lower the throttle stick to the lowest position.
2. Press and hold the bind/panic switch for 2 seconds or until the swashplate twit c hes, indicating the
servo positi ons and attitude values have been rec or ded and trim fli ght mode has been exited.
Test Flight
After performing the trim flight, test-fly the model to evaluate the leveling characteristics. The model
should return to wit hin 1° of level consistently. During takeoff, the model should lift off with minimal
corrections. During a hover, small corrections are acceptable, but the contr ol stick should remain close to

center for the majority of the flight.
It is possible the trim fli ght may not record the correct values due to excessive vibration, flying in wind or
the model not staying level. In c ertain cases, short hops may work bett er. Try the 30 second l ev el flight
without corrections mentioned above first, t hen short en the hops to look for improvem ents.
If the model perform s poorly or does not level properly aft er the trim flight, retry the trim flight procedure. If
the problem persi sts, inspect the model for damaged components, a bent shaft or anything that may
result in incr eased vibration.
Servo Arm Linkage Ball
The linkage ball must be mounted in the 3rd hole out from center. The linkage ball is installed on the inside
of the servo arm for the fore/aft cyclic servo and on the outside of t he servo arm on the left/right cyclic
servo.
Servo Calibration and Swashplate Linkage Adjustment
1. Disconnect 2 of the 3 main motor wires and disconnect the tail rotor
motor from the ESC.
2. Lower the throttle stick to the lowest position. If your transmitter utili z es
mechanical trims (like the included RTF transmitter), set the throttle trim
to the highest position. Set all other trims to the center position.
3. Power ON the transmitt er .
4. Install the fli ght bat tery on the helicopter frame. Secure the flight battery
with the hook and loop strap.
5. Connect the batt er y connector to the ESC.
6. Place the helicopter on a flat surface and leave it still until the motor
beeps twice and the bl ue ESC LED glows solid, i ndic ating initialization
is complet e.
7. Place a servo arm on the fore/aft servo in any location.
8. Move and hold the left stic k to the bot tom left corner and the right stick to the bott om right corner.
See illustration.
9. Press and hold the bind/panic switch until the fore/aft cyclic servo moves several times.
10. Release the sticks and bi nd/panic switch.
11. The AR636H is now in servo calibration mode. If the fore/aft servo arm does not move, swap the
servo connectors in the receiver before pr oc eeding.
12. Move the rudder stick either full l eft or full ri ght to reset both servo trims to 0.
13. Install the servo arms on the servos, ensuring they are as close as possible t o perpendicular to
the servos.
14. Move the elevator/aileron stick up/down then left/right until both servos are as close to
perpendicular as possible.
15. The range of adjustm ent is small. If the arm does not move far enough with the adjustment,
remove the arm and rotat e it one spline. Move t he rudder stic k full left or right to reset and try
again. Always remember to verify both servos are perpendic ular before proceedi ng.

Fore/Aft Servo Setup
Left/Right S ervo Setup
16. Install both servo arm screws.
17. Adjust the swashplate li nk ages so the swashplate is tilting af t 2° and is perfectly level in the roll
axis. Thi s ensu res full trav el of the servos. T he servo positions are acquired in t he trim flight.

18. Press and hold the bind/panic switch until the swash servos move. The values have been saved
and servo setup is complete.
19. Disconnect the fli ght battery.
20. Reconnect the main motor and tail rotor mot or to the ESC.
©2014 Horizon Hobby, LLC.
Blade, SAFE and the Horizon Hobby logo are registered trademarks of Horizon Hobby, LLC.
Patents pendin g.
Created 6/14
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