Matronics Email Lists :: View topic

Matronics Email Lists
Web Forum Interface to the Matronics Email Lists

Get Email Distribution Too! FAQ Search Memberlist Usergroups Register

Profile Log in to check your private messages Log in

flap motor

Matronics Email Lists Forum Index -> Lightning-List

View previous topic :: View next topic

Author Message

wb2ssj(at)frontiernet.net
Guest

Posted: Thu Nov 11, 2010 1:11 pm Post subject: flap motor

Nick, or anyone I have noticed that on approach and  I start to drop some flap, that I cant get a full 30 degrees till I am down to  about 70 mph. This has been getting worse the last few months. I get a full 40  with the plane on the ground. I suspect the motor getting tired. Any comments  welcome.   Tex

   [quote][b]

n5pb(at)AOL.COM
Guest

Posted: Fri Nov 12, 2010 1:59 pm Post subject: flap motor

Tex,

   I've experienced the same thing and spoke to Nick about it.  He thought it might be the motor not being strong enough.

   Bear

 

 

   

 

 

   --

wb2ssj(at)frontiernet.net
Guest

Posted: Fri Nov 12, 2010 2:24 pm Post subject: flap motor

Thanks Bear, for the reply and have you noticed it  getting worse? I really dont feel its a real problem if it stays where its at. I  dont often want more till I get down to that speed. Tex

 [quote]   ---

n5pb(at)AOL.COM
Guest

Posted: Sun Nov 14, 2010 3:54 pm Post subject: flap motor

No Tex, not getting worse but it has change my approach speeds.  I will probably change it out for a stronger motor.

    

   Bear

 

 

   

 

 

   --

flykjk(at)yahoo.com
Guest

Posted: Sat Nov 27, 2010 8:54 am Post subject: flap motor

Experienced pilots use flaps to supplement lift after the pilot has slowed down the aircraft..  Inexperienced pilots use flaps to slow down.  Think out in front of the aircraft.  Only allow the aircraft to fly you to somewhere your mind has been about 5 minutes ago.  KJK  ATP/A&P/AI/CFII  B-737.757,767, DC-8,9,10.  20,000+ hrs.  I will bet you have been exceeding the flap limit speeds on more than one ocassion.



--- On Thu, 11/11/10, Tex Mantell <wb2ssj(at)frontiernet.net> wrote:

 	  Quote: 	
		  

From: Tex Mantell <wb2ssj(at)frontiernet.net>

Subject: flap motor

To: lightning-list(at)matronics.com

Date: Thursday, November 11, 2010, 1:07 PM



          Nick, or anyone I have noticed that on approach and  I start to drop some flap, that I cant get a full 30 degrees till I am down to  about 70 mph. This has been getting worse the last few months. I get a full 40  with the plane on the ground. I suspect the motor getting tired. Any comments  welcome.   Tex

    	  Quote: 	
		  www.ae" target="_blank" href="http://www.buildersbooks.com">www.buildersbookslow" target="_blank" href="http://www.matronics.com/contribution">http:llow" target="_blank" href="http://www.matronics.com/Navigator?Lightnin=====

	


	


               [quote][b]

Bill Strahan

Joined: 20 Aug 2008
Posts: 145

Posted: Sat Nov 27, 2010 2:26 pm Post subject: Re: flap motor

 	  flykjk(at)yahoo.com wrote: 	
		  Experienced pilots use flaps to supplement lift after the pilot has slowed down the aircraft..  Inexperienced pilots use flaps to slow down.  Think out in front of the aircraft.  Only allow the aircraft to fly you to somewhere your mind has been about 5 minutes ago.  KJK  ATP/A&P/AI/CFII  B-737.757,767, DC-8,9,10.  20,000+ hrs.  I will bet you have been exceeding the flap limit speeds on more than one ocassion.

	




My new word for the day is "insultformation"



It's a means for delivering some useful information in a somewhat insulting manner.  Now that I have it as part of my vocabulary, I'll be using it often.

Kayberg(at)AOL.COM
Guest

Posted: Sun Nov 28, 2010 12:34 pm Post subject: flap motor

In a message dated 11/27/2010 5:30:49 P.M. Eastern Standard Time,  bill(at)gdsx.com writes:

  	  Quote: 	
		  

My    new word for the day is "insultformation"



It's a means for delivering    some useful information in a somewhat insulting manner.  Now that I have    it as part of my vocabulary, I'll be using it  often.

	


 

  

  

 Excellent new word!!!

  

 Now to avoid having it used against me.......

  

  

 Doug Koenigsberg

  [quote][b]

twilburn(at)comcast.net
Guest

Posted: Sun Nov 28, 2010 7:23 pm Post subject: flap motor

Kent,

Your signature is really impressive.  Do you enjoy being condescending?

Maybe I missed a post, but I don't see where Tex was using flaps to "slow down".

Why would you bet that he has been exceeding the limitations of the airplane?  I'd be more inclined to bet that he built it and would not exceed the limitations and then seek advice here in this manner.

It could be a motor getting weak, a rigging issue or a wear / lubrication issue. 

Troy Wilburn 



On Nov 27, 2010, at 11:51 AM, Kent Krizman <flykjk(at)yahoo.com (flykjk(at)yahoo.com)> wrote:



[quote]Experienced pilots use flaps to supplement lift after the pilot has slowed down the aircraft..  Inexperienced pilots use flaps to slow down.  Think out in front of the aircraft.  Only allow the aircraft to fly you to somewhere your mind has been about 5 minutes ago.  KJK  ATP/A&P/AI/CFII  B-737.757,767, DC-8,9,10.  20,000+ hrs.  I will bet you have been exceeding the flap limit speeds on more than one ocassion.



--- On Thu, 11/11/10, Tex Mantell <wb2ssj(at)frontiernet.net (wb2ssj(at)frontiernet.net)> wrote:

 	  Quote: 	
		  

From: Tex Mantell <wb2ssj(at)frontiernet.net (wb2ssj(at)frontiernet.net)>

Subject: flap motor

To: [url=mailto:lightning-list(at)matronics.com]lightning-list(at)matronics.com (lightning-list(at)matronics.com)[/url]

Date: Thursday, November 11, 2010, 1:07 PM



          Nick, or anyone I have noticed that on approach and  I start to drop some flap, that I cant get a full 30 degrees till I am down to  about 70 mph. This has been getting worse the last few months. I get a full 40  with the plane on the ground. I suspect the motor getting tired. Any comments  welcome.   Tex

    	  Quote: 	
		  www.ae" target="_blank" href="http://www.buildersbooks.com">www.buildersbookslow" target="_blank" href="http://www.matronics.com/contribution">http:llow" target="_blank" href="http://www.matronics.com/Navigator?Lightnin=====

	


	


          	  Quote: 	
		  



href="http://www.aeroelectric.com">www.aeroelectric.com

href="http://www.buildersbooks.com">www.buildersbooks.com

href="http://www.homebuilthelp.com">www.homebuilthelp.com

href="http://www.matronics.com/contribution">http://www.matronics.com/contribution

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

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

	


[b]

wb2ssj(at)frontiernet.net
Guest

Posted: Mon Nov 29, 2010 1:27 pm Post subject: Flap motor

Hi Steve, I have found that I can live with it till  the next annual and I have the spare motor which was used on the trim, till I  added the electric trim tab on the elevator. 

    I am sorry to have started such a  controversial thing on the net, but its the right place to air the situations  involving  flying and the Lightning.

    Ken's comments were valid in practice, I  don't believe he is familiar with the Lightning and its spec.'s. The proper  procedure is to have the plane in landing configuration prior to turning final  on  approach. The glide rate of 17 to 1 is a little tough to slow down when  dropping into a 1200 foot strip with 50 ft trees on both ends, and situated in  valley in the mountains. The 40 degree flap position sure helps.

  

 P.S. On the G5 we deploy flaps 10* at 240mph, 20* at 220  mph and 30* at 180 mph.

  

  

  

 ---

selwyn

Joined: 12 Mar 2008
Posts: 102
Location: Australia

Posted: Mon Dec 06, 2010 12:26 am Post subject: Re: flap motor

Hi Tex,



Hey, I like those flap speeds!



On the flap motor issue; I forget just what your panel setup is but I wonder how accurate your airspeed is.  I have a flat screen and a steam driven ASI and I have found that there is a variable difference between the two of up to 8 - 10 kt.  I haven't finished the testing of all this but my opinion ATM is that the steam driven ASI is good and the errors are in the flat panel and are related to altitude and / or temperature.



Be that as it may, if I look at the flat panel ASI which is say 8 kt slow, then I can't get full flap if my ASI is anyway near the max flap speed.  Thus it seems that the flap motor is marginal and won't extend full flap above max flap speed.  Now this is not necessarily a bad thing but it is probably an unintentional feature.



I'd be interested to know if you are confident of your ASI indications.



Cheers,  Selwyn

_________________
Cheers, Selwyn
Kit 66 VH-ELZ

wb2ssj(at)frontiernet.net
Guest

Posted: Mon Dec 06, 2010 2:50 pm Post subject: flap motor

Selwyn, I had errors in my system till I modified the pitot tube which is 

also the static port. I added another set of holes for the static line. On 

the supplied assembly there is one hole. I added another the same size to 

the other side. I then placed a set of holes (1/8") about 1 inch back of 

these holes. I found that corrected my air speed indications very accurate 

and have checked them at all speeds. I use a steam gauge for airspeed and 

also found it improved the auto pilot response on altitude.



TEX

---

selwyn

Joined: 12 Mar 2008
Posts: 102
Location: Australia

Posted: Mon Dec 06, 2010 10:13 pm Post subject: Re: flap motor

Hi Tex,



I'd agree that the supplied pitot / static probe will not give good results in any but ideal conditions and your fix seems a good one.   What is exercising my mind more at the moment is the variable difference between the two ASI indicators which share the same pitot / static system.  Sorting out things like that helps to keep us off the street I suppose.

_________________
Cheers, Selwyn
Kit 66 VH-ELZ

wb2ssj(at)frontiernet.net
Guest

Posted: Tue Dec 07, 2010 6:27 am Post subject: flap motor

HI Selwyn, the first thing to do would be to determine which is right. Then 

play with the static port. Use you GPS and fly the four points on the 

compass and compare. It took me about 4 months to finally get it right.

Tex

---

Display posts from previous:

	Matronics Email Lists Forum Index -> Lightning-List	All times are GMT - 8 Hours
Page 1 of 1

Jump to:

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You cannot download files in this forum