[Healeys] Curved/quiet or Straight/efficent

warthodson at aol.com warthodson at aol.com
Fri Jan 24 15:49:14 MST 2020

I am confused by the terminology & illustrations on this site.Terminology: Pitch = angle of attack. An efficient fan/propeller blade usually has a higher pitch near the hub (center) than at the tip. A blade with a constant pitch is less efficient.
Blade Camber is the equivalent of a wing airfoil. A flat blade = 0 camber is generally less efficient than a blade with a camber/ arch/airfoil. However, the camber has t be appropriate to the application. 

-----Original Message-----
From: Perry via Healeys <healeys at autox.team.net>
To: Patrick & Caroline Quinn <p_cquinn at tpg.com.au>
Cc: healeys at autox.team.net <healeys at autox.team.net>
Sent: Fri, Jan 24, 2020 4:11 pm
Subject: Re: [Healeys] Curved/quiet or Straight/efficent

#yiv4103211760 #yiv4103211760 -- _filtered {} _filtered {} #yiv4103211760 #yiv4103211760 p.yiv4103211760MsoNormal, #yiv4103211760 li.yiv4103211760MsoNormal, #yiv4103211760 div.yiv4103211760MsoNormal {margin:0in;margin-bottom:.0001pt;font-size:11.0pt;font-family:sans-serif;} #yiv4103211760 a:link, #yiv4103211760 span.yiv4103211760MsoHyperlink {color:blue;text-decoration:underline;} #yiv4103211760 .yiv4103211760MsoChpDefault {} _filtered {} #yiv4103211760 div.yiv4103211760WordSection1 {} #yiv4103211760 Sir PatrickPlease peruse the web site at: https://daviescraig.com.au/blog/straight-vs-curved-fan-blades-dispelling-the-mythThey must have the best info on the globe since they are located down under! 😊Perry    Sent from Mail for Windows 10  
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://autox.team.net/pipermail/healeys/attachments/20200124/89aa7692/attachment.htm>

More information about the Healeys mailing list