H-KING Yak54 Instruction Manual page 7

Assemble motor on the metal cross using screws.
Then install motor on motor mount with tapping screws
(we can use servo's screws).
Same way to install receiver and battery on fuselage
behind ESC.
EPP Yak54 is a very good plane for F3D and F3P
flying. It's strong and easy to fix.
Put hook and loop tape on fuselage using foam glue.
Then install ESC.
C of G is on the wing as shown in the picture above.
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