User Instructions

To perform the calibration procedure:
1. Ensure the surface used for calibration is level.
2. Remove the Mach 25 canopy.
3. Power on the transmitter and quadcopter, allowing them
to initialize.
4. Turn Throttle Hold ON.
5. Ensure the propellers are removed. Set the fl ight mode
switch to Stability High Bank Angle (FM1).
6. Using a bubble level as shown below, level the quadcop-
ter both front-to-back and side-to-side by placing shims
under the low side.
7. Refer to the
illustrations at
right. Depending
on which control
layout mode your
transmitter uses,
move the control
sticks to the
positions shown
and press the
bind button until
the LED on the
receiver fl ashes
once.
8. Release both
sticks and the
bind button.
9. The LED on the receiver will remain solid for 1-2 minutes
while the calibration takes place. Do not move the quad-
copter until the calibration is completed.
If the LED begins blinking rapidly, an error has
occurred. Begin the calibration procedure again,
starting with step 1.
10. After the calibration is successfully completed, the receiver
LED will blink slowly (2 seconds on, 2 seconds off).
11. Power the quadcopter off.
12. Install the canopy.
13. Install the propellers.
14. Perform the trim fl ight procedure as shown in the Advanced
Settings Addendum available at www.bladehelis.com.
15. During subsequent fl ights after the trim fl ight, the quadcop-
ter should return to within 5 degrees of level consistently.
Blade
®
Mach 25
™
BNF Quad Racer Calibration Procedure
EN
If the Mach 25
™
is experiencing drift issues after completing the trim fl ight procedure located at
www.bladehelis.com, perform the following calibration. The calibration procedure may also be needed
following crash repairs.
WARNING: Remove all 4 propellers before beginning the calibration procedure.
Items needed:
• Round bubble level
• Shim material
Bubble level
Bubble level
Level surface
Shim
©2015 Horizon Hobby, LLC
Blade is a registered trademark of Horizon Hobby, LLC.
Created 11/15 (EN) 51607
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