Habu STS 70mm EDF RTF Basic
10
EN
Assembly Video
Center of Gravity (CG)
We recommend watching the “Center of Gravity” chapter/
section of the assembly video by scanning this QR code or
using this URL: www.horizonhobby.cc/HabuSTSassembly.
80 mm
back from
the leading edge at
the wing root
CAUTION:
Never fly the aircraft without ensuring the center of gravity is
within the acceptable range. Failure to properly balance the aircraft can
result in loss of control and possible damage. Crash damage is not covered
under warranty.
After installing the flight battery and before powering on the ESC, verify the center
of gravity is correct. The CG should fall within 70-105mm from the leading edge of
the wing, measured at the wing root. However, for the best flight characteristics,
the suggested CG location is 80mm behind the leading edge of the wing, measured
at the wing root as shown.
The flight battery and canopy must be installed to balance the aircraft correctly.
Hold the aircraft inverted, with both index fingertips at the suggested CG location,
on either side of the fuselage.
• If the aircraft stays level, the aircraft is balanced on the suggested CG location.
• If the nose tips down, move the flight battery rearward until the aircraft
balances level on the suggested CG location.
• If the nose tips up, move the flight battery forward until the aircraft balances
level on the suggested CG location.
When flying in beginner mode with the correct CG, the aircraft should climb
gradually at full power, and fly level at 50-60% power with no added elevator input.
• If the aircraft CG is too far forward (nose heavy), up elevator is required to fly
level at 50-60% power.
• If the aircraft CG is too far aft (tail heavy), down elevator is required to fly level.
Adjust the battery position as needed.
