Re: [Healeys] Curved/quiet or Straight/efficent

[warthodson--- via Healeys <healeys@autox.team.net>]

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I am confused by the terminology & illustrations on this site.Terminology:=
=C2=A0Pitch =3D angle of attack. An efficient fan/propeller blade usually h=
as a higher pitch near the hub (center) than at the tip. A blade with a con=
stant pitch is less efficient.
Blade Camber is the equivalent of a wing airfoil. A flat blade =3D 0 camber=
 is generally less efficient than a blade with a camber/ arch/airfoil. Howe=
ver, the camber has t be appropriate to the application.=C2=A0
Gary


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

#yiv4103211760 #yiv4103211760 -- _filtered {} _filtered {} #yiv4103211760 #=
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erline;} #yiv4103211760 .yiv4103211760MsoChpDefault {} _filtered {} #yiv410=
3211760 div.yiv4103211760WordSection1 {} #yiv4103211760 Sir PatrickPlease p=
eruse the web site at: https://daviescraig.com.au/blog/straight-vs-curved-f=
an-blades-dispelling-the-mythThey must have the best info on the globe sinc=
e they are located down under! =F0=9F=98=8APerry =C2=A0 =C2=A0Sent from Mai=
l for Windows 10 =C2=A0

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<div style=3D"color:black;font: 10pt arial;">I am confused by the terminolo=
gy &amp; illustrations on this site.
<div>Terminology:&nbsp;</div>

<div>Pitch =3D angle of attack. An efficient fan/propeller blade usually ha=
s a higher pitch near the hub (center) than at the tip. A blade with a cons=
tant pitch is less efficient.</div>

<div><br>
</div>

<div>Blade Camber is the equivalent of a wing airfoil. A flat blade =3D 0 c=
amber is generally less efficient than a blade with a camber/ arch/airfoil.=
 However, the camber has t be appropriate to the application.&nbsp;</div>

<div><br>
</div>

<div>Gary<br>
<br>
<br>

<div style=3D"font-family:arial,helvetica;font-size:10pt;color:black">-----=
Original Message-----<br>
From: Perry via Healeys &lt;healeys@autox.team.net&gt;<br>
To: Patrick &amp; Caroline Quinn &lt;p_cquinn@tpg.com.au&gt;<br>
Cc: healeys@autox.team.net &lt;healeys@autox.team.net&gt;<br>
Sent: Fri, Jan 24, 2020 4:11 pm<br>
Subject: Re: [Healeys] Curved/quiet or Straight/efficent<br>
<br>

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<div class=3D"yiv4103211760WordSection1">
<div class=3D"yiv4103211760MsoNormal">Sir Patrick</div>

<div class=3D"yiv4103211760MsoNormal">Please peruse the web site at: <a rel=
=3D"noopener noreferrer" shape=3D"rect" target=3D"_blank" href=3D"https://d=
aviescraig.com.au/blog/straight-vs-curved-fan-blades-dispelling-the-myth">h=
ttps://daviescraig.com.au/blog/straight-vs-curved-fan-blades-dispelling-the=
-myth</a></div>

<div class=3D"yiv4103211760MsoNormal">They must have the best info on the g=
lobe since they are located down under! <span>=F0=9F=98=8A</span></div>

<div class=3D"yiv4103211760MsoNormal">Perry</div>

<div class=3D"yiv4103211760MsoNormal"> &nbsp;</div>

<div class=3D"yiv4103211760MsoNormal"> &nbsp;</div>

<div class=3D"yiv4103211760MsoNormal">Sent from <a rel=3D"noopener noreferr=
er" shape=3D"rect" target=3D"_blank" href=3D"https://go.microsoft.com/fwlin=
k/?LinkId=3D550986">Mail</a> for Windows 10</div>

<div class=3D"yiv4103211760MsoNormal"> &nbsp;</div>

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r>
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