E-flite Extra 260 3D Profile - Manual (Page 29)

 2. Drill pilot holes for the mounting holes marked
on the plywood mount using a 1/16" (1.5mm)
drill bit.
Note:.If.you.are.using.a.variable.pitch.propeller.
for.your.Extra,.you.should.prepare.the.motor.as.
instructed.in.the.instructions.included.with.your.
propeller.system.
 3. Attach the mount to your particular motor.
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