Does the Tengu 4025HS / 550kV (12S) have enough power for an Oxy 5 with 610 - 620 mm blades?
The Tengu 4025 is our recommended motor for 550-570 sized helis and while it's gonna work perfectly on a regular Oxy5, we recommend to rather go with a Tengu 4035 if you're running the larger 610-620mm blades and are a more advanced / 3D pilot, as this is our dedicated motor option for helis in the 600 class.