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wing and hor stab incidences

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mdnanwelch7(at)hotmail.co
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Posted: Mon Mar 24, 2008 8:35 am Post subject: wing and hor stab incidences

Mike B & others,

  

   These are the measurements, in degrees, of the planes I have been given.  These readings are predicated on setting your main wings to 9 degrees, first!!  By setting the main wings to 9 degrees, your landing gear has nothing to do with any further measurements.

  

   For anyone else that wants to check and verify these figures, feel free to chime in.  But, remember, prop up your wings to 9 degrees, or all these figures are useless.  You have to have a basic reference point to begin, I just happened to choose 9 degrees......

  

   In analyzing these figures, be be honest, what these SHOULD be applied to is a drawing!!!  I see where Brian's angle under the fuselage is off by a huge margin.  Why?  He likely took a reading from a different location, than the others.

  

   Mike Welch

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ElleryWeld(at)aol.com
Guest

Posted: Mon Mar 24, 2008 10:11 am Post subject: wing and hor stab incidences

Now if we could get  the cruise & stall speed  for each airplane (at) a particular RPM  that would give everyone else  something better to choose from wouldn't it?

  

 Ellery in Maine 

 do not archive

  

  In a message dated 3/24/2008 11:35:41 A.M. Eastern Standard Time,  mdnanwelch7(at)hotmail.com writes:

  	  Quote: 	
		  

Mike B & others,

 

  These are the measurements, in    degrees, of the planes I have been given.  These readings are predicated on setting your main wings to 9 degrees, first!!     By setting the main wings to 9 degrees, your landing gear    has nothing to do with any further measurements.

 

  For anyone else that wants to    check and verify these figures, feel free to chime in.  But, remember,    prop up your wings to 9 degrees, or all these figures are    useless.  You have to have a basic reference point to    begin, I just happened to choose 9 degrees......

 

  In analyzing these figures, be be    honest, what these SHOULD be applied to is a drawing!!!  I see where    Brian's angle under the fuselage is off by a huge    margin.  Why?  He likely took a reading from a different    location, than the others.

 

  Mike Welch



      Windows Live Hotmail is giving away Zunes. Enter for your chance to win.  = 	




Create a Home Theater Like the Pros. Watch the video on AOL Home.

  [quote][b]

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ez(at)embarqmail.com
Guest

Posted: Mon Mar 24, 2008 1:05 pm Post subject: wing and hor stab incidences

On Mar 24, 2008, at 2:08 PM, ElleryWeld(at)aol.com (ElleryWeld(at)aol.com) wrote: 	  Quote: 	
		  Now if we could get  the cruise & stall speed for each airplane (at) a particular RPM  that would give everyone else something better to choose from wouldn't it? 	






If I tell you my Firestar's top speed straight and level is 100mph and stalls at 18mph with VGs would you be impressed?

What if I posted actual pictures of my air-speed indicator reading those figures?

I believe it prudent to view all posted air speeds with a healthy degree of skepticism because of the significant variations in air-speed indicators from one plane to another. 

For me it is merely interesting information with little real value.

My personal opinion,,,,,,,, proud as I am  of my numbers.  

Gene





 [quote][b]

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ElleryWeld(at)aol.com
Guest

Posted: Mon Mar 24, 2008 3:59 pm Post subject: wing and hor stab incidences

Gene

 No Im not interested in your firestar  I had one  and I know what it would do,  I am looking for info on the MK3Xtra and what  the magic angles in the rigging makes it fly along good and easy and keeping the  rpm down for best  fuel consumption not the fastest speed or the slowest  stall speed I could give whats under a rats tail about the stall speed anyway  

  

 Ellery in Maine

 do not archive

  

  In a message dated 3/24/2008 4:06:45 P.M. Eastern Standard Time,  ez(at)embarqmail.com writes:

  	  Quote: 	
		  

   On Mar 24, 2008, at 2:08 PM, ElleryWeld(at)aol.com (ElleryWeld(at)aol.com) wrote:    	  Quote: 	
		  Now      if we could get  the cruise & stall speed for each airplane (at) a      particular RPM  that would give everyone else something better to      choose from wouldn't it? 	


   



   



   If I tell you my Firestar's top speed straight and level is 100mph and    stalls at 18mph with VGs would you be impressed?

   What if I posted actual pictures of my air-speed indicator reading those    figures?

   



   I believe it prudent to view all posted air speeds with a healthy degree    of skepticism because of the significant variations in air-speed    indicators from one plane to another. 

   For me it is merely interesting information with little real value.

   



   My personal opinion,,,,,,,, proud as I am  of my numbers.     

   



   Gene

   



   



 	  Quote: 	
		  



="http://www.matronics.com/Navigator?Kolb-List">http://www.matronics.com/Navigator?Kolb-List

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JetPilot

Joined: 10 Jan 2006
Posts: 1246

Posted: Tue Mar 25, 2008 5:52 am Post subject: Re: wing and hor stab incidences

Mike,



Thanks for posting the Angles, I will recheck everything and let you know what I find.



Gene,



Those are amazing numbers.  You are correct about airspeed indicators being off much of the time, but this is easy to fix.   Go up on a Calm day, and mount a handheld GPS next to your airspeed indicator when you take the picture, that way you know what your error is all along the speed range.   



Ellery,



I like the idea of everyone posting the numbers on thier Kolbs, that will give everyone a good idea of what their plane should do, and if any mods and improvements are increasing performance or not.   We should start a performance comparison thread for each model Kolb.   I will be posting detailed numbers on my Xtra one of these days.



Mike

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_________________
"NO FEAR" - If you have no fear you did not go as fast as you could have !!!

Kolb MK-III Xtra, 912-S

ez(at)embarqmail.com
Guest

Posted: Tue Mar 25, 2008 4:41 pm Post subject: wing and hor stab incidences

Hey Mike.



Please do not take those numbers too seriously. That was the whole  

point of my post.

While I am happy with my plane's performance, my plane is modified  

pretty  far from the stock Kolb Firestar and has a 75 hp 618 Rotax  

engine.

I agree that with enough comparison with a GPS one can get a pretty  

good perspective on the accuracy of ones ASI at various speeds, The  

indicator can be tweaked by adjusting its static port.

Here is what I have found to be a very effective way for me to tweak  

my air speed indicator to read accurately.  I have an aluminum  static  

port tube and  pressure port tube side by side on the nose  of the  

plane (mine are about 1 inch apart) with end of  the static port tube  

permanently sealed shut and with a 1/16 or smaller ( I forget) hole  

drilled in the side of the tube about  1 1/2 inch from the end of the  

tube. I slip a short piece of snugly fit fuel hose over each tube for  

protection. By adjusting  how close to the small  hole in the side of  

the tube the end of  hose is slipped on, the static pressure reading  

can be adjusted.  The closer the end of the hose is to the small hole  

the faster the indicator will read.  I start out first without the  

protection hoses on to adjust for  the ideal mounting angle for my  

tubes for the flight attitude where I want my indicator to be  

accurate, but more importantly CONSISTENT. For me that is the slow  

speed stall attitude.

There are probably other good ways to get more accurate airspeed  

readings but that is what has worked for me.



Gene



On Mar 25, 2008, at 9:52 AM, JetPilot wrote:



 	  Quote: 	
		   Gene,



 Those are amazing numbers.  You are correct about airspeed  

 indicators being off much of the time, but this is easy to fix.   Go  

 up on a Calm day, and mount a handheld GPS next to your airspeed  

 indicator when you take the picture, that way you know what your  

 error is all along the speed range.

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