15
BATFLY
250 FPV QUAD RACER USER'S GUIDE
First, practice hovering in a small space, using small control inputs to keep the Quad Racer in one place (Fig. 1). Next,
practice flying a square or rectangular pattern (Fig. 2), then practice flying in a figure-8 pattern (Fig. 3). After getting
better at flying these patterns, practice flying different patterns, spinning the Quad Racer 360º and changing the
position at which you stand relative to the front of the Quad Racer (Fig. 4).
Practice Patterns:
Once you become comfortable with the basics, start practicing the different patterns described below to help you
increase your skills and confidence flying the Quad Racer.
FLYInG BASICS (ALL VERSIonS), ConTInUED....
FLYInG YoUR BATFLY 250 FPV QUAD RACER
FLIGhT TRImmInG (ALL VERSIonS)
In general, the Batfly 250 FPV Quad Racer should require very little to no flight trimming. If you feel the Quad Racer
requires flight trimming that is not caused by a continuous cross-wind, do the following first:
A) If you have the Ready-to-Fly version, connect the Quad Racer to your PC or laptop and use the OpenPilot GCS
CC3D Flight Controller software Configuration > Input menu to ensure the flight controls are centered. The sliders
should be lined up with the red dots. If they’re not, adjust the Trim Switches until they are. If you have the Kit or
Receiver-Ready version, center the Trim Switches on your transmitter. Re-arm the motors and continue flying.
B) Land and unplug the LiPo battery. Set the Quad Racer on a flat level surface, then plug the LiPo battery in and
allow the gyros to calibrate and the Flight Controller to initialize again. Re-arm the motors and continue flying.
If you still feel that the Quad Racer requires flight trimming, adjust the Trim Switches as described below.
IMPORTANT:
We suggest flight trimming the Quad Racer while hovering no less than 3 feet off the ground.
Flying any lower will make it more difficult to trim the Quad Racer due to the ground effect caused by the
spinning propellers. We also suggest flight trimming in a calm environment (little to no wind).
1) Push the throttle forward to take off and place the Quad Racer in a stable hover, about 3 feet off the ground. Release
both control sticks and watch how the Quad Racer reacts, then trim the Quad Racer as described in the diagrams.
The Throttle Trim Switch should be left centered at all times. In addition, if for any reason the motors
will not arm after you’ve adjusted the Trim Switches, center the Trim Switches on the transmitter.
Spins Left/Spins Right
Moves Forward/Moves Backward
Moves Left/Moves Right
SPINS LEFT
TRIM RIGHT
SPINS RIGHT
TRIM LEFT
MOVES FORWARD
TRIM BACKWARD
MOVES BACKWARD
TRIM FORWARD
MOVES LEFT
TRIM RIGHT
MOVES RIGHT
TRIM LEFT
