On 2002-10-29 21:23, serpent wrote:
Area of the mouthpiece opening
Length of the airway to the blade opening
Width of the blade opening
Angle of the blade
Diameter of the tube
Diameters of the toneholes
Length of the tube
Lengths to the toneholes when played open
“Chimney” of the toneholes.
Material of things in the primary airflow.
Smoothness of that material
Not necessarily in that order!
Any questions? > >
Cheers,
Bill Whedon
Yeah, what he said…
And now you’ve earned the right to be soundly thrashed as I was (repeatedly), for having the effrontery to put your URL in your .sig! Man! Don’t you know about the “www” button at the bottom of your post?! How dare you! This is a Pristine & Clean Family Place, where rampant commercialism such as yours is destined to be totally quashed! This is a venue for discussion of How Unselfishly Helpful We Are, How Cute We Are, How Many Whistles We Can Sell (OH! Without making them ourselves, though!) And What We Think Of Lord Of The Rings! For your transgressions, ye shall be banished to the Outer Darkness, never to be a Designated Cutie-Pie until such time as ye repent your evil ways and remove the offensive “www.busmanwhistles.com” which, BTW, works better like this: http://www.busmanwhistles.com
from your .signature file, never again to sully the Purity & Light that is C&F!
Repent! I beseech thee! Repent!
Yeah, horribeul commercial spirit. This time of the year, and they let merchants in The Temple! And when I’m sitting in front of my computer to avoid the commercials (6 years old Sacha will give me a digest anyway…)!
This borders rampant Nigerian scam spirit. Read this guy pages ? It analyzes like this :
“Hello, I come to you with a serious business offer.
I inherited a huge pile of various exotic endangered species woods. This was left to me by late Dahomey king Cocobolo IV aka “Blister lips”.
Unfortunately, because of the current regime, I cannot take possession of my share without your help.
Send me you Card number, and I promise I’ll send you an authentic Mau-Mau magic wand, with hand-crafted real brass inserts and wind holes made of the finest African void… (etc.)”
Must come from Rhodesia : there’s a picture of a white guy. And why wouldn’t they pull Internet Rhodesian scams ?
Now, them bushman whistles look really cool. (if small )
Reading this thread when it started, I wondered if any makers use the Venturi effect (which I am aware of but which raises more questions than my tech-illiterate mind can cope with) as a means of reducing air requirement. Then lo and behold, when I impulse-bought a Feadóg Mark III recently, I noticed that it does indeed have a windway whose internal height tapers from the mouthpiece towards the window (hope I’ve got the terminology right!).
On 2002-12-17 12:09, Roger O’Keeffe wrote:
Reading this thread when it started, I wondered if any makers use the Venturi effect (which I am aware of but which raises more questions than my tech-illiterate mind can cope with) as a means of reducing air requirement. Then lo and behold, when I impulse-bought a Feadóg Mark III recently, I noticed that it does indeed have a windway whose internal height tapers from the mouthpiece towards the window (hope I’ve got the terminology right!).
The fipple assembly has a Venturi effect no matter how you’ll do it. Some do it obviously, with a tapered windway, i.e. narrower and/or flatter going down.
The others do it willy-nilly : mouth-windway-window is a Venturi channel. Also, most makers seem to taper (bevel) the block at the level of the pipple window, and this must have to do with trying and keeping the airflow laminar when it exits the windway.
Now, this design here
(photo from mollenhauer.com site) is even closer to a pure Venturi : a screw let you gradually narrow the windway at will.
Mollenhauer say they use some Strathmann’s patent on it.
[ This Message was edited by: Zubivka on 2002-12-18 04:51 ]
>
(if small 
)