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New iwng tip extensions

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info(at)flylightning.net
Guest

Posted: Fri May 23, 2008 8:56 am Post subject: New iwng tip extensions

To Group:  

   

We have put a 1 hour initial flight test on the wing tip extensions. Flight was for general flight qualities no specific data was taken. Takeoff roll is shorter, the landing roll is shorter and final approach speed slower, this was evident on my 2 landings in which a slip was needed to get down when flying at the normal approach speed, so after a few hours I am sure we will figure a new revised approach speed with the tips. Stall speed seems to be initially 6-8 mph lower than with the standard tips. Climb rate is higher too. The stick force required is slightly higher with the new tips, although there is no significant reduction in roll authority or response at high speed or in slow flight and near stall.  No bad habits in the stall so far, the stall is so slow that you are left waiting for it to happen, and than it does there is a mild buffet just before but not as much as before so the next thing will be some yarn on the wing and tip and see what the air is doing around it.  

So long story short the tip flys, and so far are doing what we had hoped. These tips were installed with nut plates as we know that there are many of you wishing to install them this way. I think that glassing them on will be easiest as we did increase the glass thickness on the wing at the attach point by 2 layers of 10oz , so there is a bit of extra work, if there are to be glassed on the 2 layer will go over the seem anyways.  

   

Nick Otterback  

   

R&D  

Arion Aircraft, LLC  

        [quote][b]

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pequeajim

Joined: 03 Sep 2006
Posts: 708
Location: New Holland, PA

Posted: Fri May 23, 2008 9:16 am Post subject: New iwng tip extensions

Sounds like good news Nick, thanks!

  

 When you have pictures of the installed wing tips, I would like to post them on jimslightning.com.

  

 Jim!

 



 

 On 5/23/08, flylightning <info(at)flylightning.net (info(at)flylightning.net)> wrote: [quote]   

To Group: 

  

We have put a 1 hour initial flight test on the wing tip extensions. Flight was for general flight qualities no specific data was taken. Takeoff roll is shorter, the landing roll is shorter and final approach speed slower, this was evident on my 2 landings in which a slip was needed to get down when flying at the normal approach speed, so after a few hours I am sure we will figure a new revised approach speed with the tips. Stall speed seems to be initially 6-8 mph lower than with the standard tips. Climb rate is higher too. The stick force required is slightly higher with the new tips, although there is no significant reduction in roll authority or response at high speed or in slow flight and near stall.  No bad habits in the stall so far, the stall is so slow that you are left waiting for it to happen, and than it does there is a mild buffet just before but not as much as before so the next thing will be some yarn on the wing and tip and see what the air is doing around it.  

So long story short the tip flys, and so far are doing what we had hoped. These tips were installed with nut plates as we know that there are many of you wishing to install them this way. I think that glassing them on will be easiest as we did increase the glass thickness on the wing at the attach point by 2 layers of 10oz , so there is a bit of extra work, if there are to be glassed on the 2 layer will go over the seem anyways.  

  

Nick Otterback 

  

R&D 

Arion Aircraft, LLC

 	  Quote: 	
		  



href="http://www.matronics.com/Navigator?Lightning-List" target="_blank">http://www.matronics.com/Navigator?Lightning-List

href="http://forums.matronics.com/" target="_blank">http://forums.matronics.com

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[b]

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sttwig(at)wabroadband.com
Guest

Posted: Fri May 23, 2008 10:31 am Post subject: New iwng tip extensions

Your results sound very positive, especially for LSA.  Any observation of

effects on top speed or economy?  How about roll rate?



Steve

Kit #48





 	  Quote: 	
		   To Group:



 We have put a 1 hour initial flight test on the wing tip extensions.

 Flight

 was for general flight qualities no specific data was taken. Takeoff roll

 is

 shorter, the landing roll is shorter and final approach speed slower, this

 was evident on my 2 landings in which a slip was needed to get down when

 flying at the normal approach speed, so after a few hours I am sure we

 will

 figure a new revised approach speed with the tips. Stall speed seems to be

 initially 6-8 mph lower than with the standard tips. Climb rate is higher

 too. The stick force required is slightly higher with the new tips,

 although

 there is no significant reduction in roll authority or response at high

 speed or in slow flight and near stall.  No bad habits in the stall so

 far,

 the stall is so slow that you are left waiting for it to happen, and than

 it

 does there is a mild buffet just before but not as much as before so the

 next thing will be some yarn on the wing and tip and see what the air is

 doing around it.



 So long story short the tip flys, and so far are doing what we had hoped.

 These tips were installed with nut plates as we know that there are many

 of

 you wishing to install them this way. I think that glassing them on will

 be

 easiest as we did increase the glass thickness on the wing at the attach

 point by 2 layers of 10oz , so there is a bit of extra work, if there are

 to

 be glassed on the 2 layer will go over the seem anyways.



 Nick Otterback



 R&D



 Arion Aircraft, LLC

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info(at)flylightning.net
Guest

Posted: Fri May 23, 2008 10:46 am Post subject: New iwng tip extensions

Jim,  

   

I will get a pic today and send it to you …they are on the prototype and have a unfinished test look about them but that’s it testing right!  

   

Nick  

         

  

From: owner-lightning-list-server(at)matronics.com [mailto:owner-lightning-list-server(at)matronics.com] On Behalf Of Jim Langley

 Sent: Friday, May 23, 2008 12:14 PM

 To: lightning-list(at)matronics.com

 Subject: Re: New iwng tip extensions  

  

     

Sounds like good news Nick, thanks!  

    

   

    

When you have pictures of the installed wing tips, I would like to post them on jimslightning.com.  

    

   

    

Jim!  

    



 

    

    

On 5/23/08, flylightning <info(at)flylightning.net (info(at)flylightning.net)> wrote:       

To Group:  

   

We have put a 1 hour initial flight test on the wing tip extensions. Flight was for general flight qualities no specific data was taken. Takeoff roll is shorter, the landing roll is shorter and final approach speed slower, this was evident on my 2 landings in which a slip was needed to get down when flying at the normal approach speed, so after a few hours I am sure we will figure a new revised approach speed with the tips. Stall speed seems to be initially 6-8 mph lower than with the standard tips. Climb rate is higher too. The stick force required is slightly higher with the new tips, although there is no significant reduction in roll authority or response at high speed or in slow flight and near stall.  No bad habits in the stall so far, the stall is so slow that you are left waiting for it to happen, and than it does there is a mild buffet just before but not as much as before so the next thing will be some yarn on the wing and tip and see what the air is doing around it.  

So long story short the tip flys, and so far are doing what we had hoped. These tips were installed with nut plates as we know that there are many of you wishing to install them this way. I think that glassing them on will be easiest as we did increase the glass thickness on the wing at the attach point by 2 layers of 10oz , so there is a bit of extra work, if there are to be glassed on the 2 layer will go over the seem anyways.  

   

Nick Otterback  

   

R&D  

Arion Aircraft, LLC  

   	  Quote: 	
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