Hi I need some advise please :-) i have a flight to Iceland in few hours and I am not sure into what luggage should I put my phantom propellers - checked in or carry on? My Li-Po batteries will be with me when boarding (I have a special guarded lipo bag). So any advise about the propellers, cos they might be considered as sharp item ?
Thank You!

I'd agree, put them in the hold.  Assuming the P3 is going in the hold, you might as well keep the props with it.

Put your propellers wherever you like.
No-one at the airport will care whatever you do.

Hello PopArt, the props don't matter. But here is a tip for you if you want to carry the battery onto the plane: