Discussions

Prop Noise Comparisons?

Posted by James Pistorino on March 24, 2010 at 3:43pm
Has anyone done/know of any testing comparing different props and their noise levels at different speeds?

I would be interested in know how the noise of different prop lengths and designs varies by the prop speed.

Sorry if this is a newbie question.

Thanks,
James

You need to be a member of diydrones to add comments!

Join diydrones

Email me when people reply –
Follow

Replies

  • Troy Reabe April 28, 2010 at 12:19am
    No this is not a Newbie question.

    in most cases a longer fatter slower turning club makes less noise.

    The noise from the prop can come from multipule things but the two that I notice most are just from the turblance caused by the blade. So a slower turning(may need a gearbox) larger diameter prop normaly makes less noise.

    On our AT-301 air tractors we went from a plane that could be heard over 7 miles away at takeoff to one that can only be heard at 3, and we could now hear the engine over the prop.
    We did this by incresing the prop length by ~10% going to 3 blades and dropping the RPM by 50%
    Domain im Kundenauftrag registriert
    Domain registriert bei united-domains.de
This reply was deleted.

Activity