Noise related question
I have a Neptune Seaplane that I'd like to use either an OS .46AX OR an OS .55AX. The prop I can use need to be 11' max because of clearance issue. Now, I will fly in a place where the noise 'could' be an issue. I'd like to know which of theses two motor could be the quiter of the two with either a 11 X ? OR a three blade prop on the 55AX ? My friend use a 55AX and it seem much less noisy than my 46AX. Of course brand of propeller and size will be the key here but let me know what I can use to produce the less noise.
Thanks,
Séb