Prop Question. Is this normal???

[frdvschvy]

Just installed a new Graupner CF 42mm prop on my BJ26. I noticed that the diameter of the prop base is slightly larger than the diameter of the drive dog. This creates a little lip where the prop meets the drive dog. The stock prop matched the drive dog perfectly and had no lip.

You can view the drawing below for reference.

Is this normal? Will this small lip cause drag or performance issues?

[Anthony.L]

My x642 has the same lip and I can't say it makes any difference. If it does it's extremely small.

[frdvschvy]

Good to know. Thanks!