Matronics Email Lists :: View topic - Flap Actuator Load Calcs.....how do I do it??

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 Actuator Load Calcs.....how do I do it??

Matronics Email Lists Forum Index -> Europa-List

View previous topic :: View next topic

Author Message

tonyrenshaw268(at)gmail.c
Guest

Posted: Fri Jun 13, 2014 3:43 pm Post subject: Flap Actuator Load Calcs.....how do I do it??

Gidday

My electric flap actuator can take a 110 lb dynamic load, and a 500 lb static load. I want to know how to work out the dynamic load on the flap at max flap limit speed. If I can work out the area of my flaps, and know the full flap deflection angle, and limit speed, does anyone know how to calculate the force to drive the flaps to their extended position?

Thanks

Tony Renshaw



Sent from my iPad

- The Matronics Europa-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Europa-List

grahamsingleton(at)btinte
Guest

Posted: Sat Jun 14, 2014 2:54 am Post subject: Flap Actuator Load Calcs.....how do I do it??

Tony

the air load on the flaps is (almost completely) balanced, so the load

on the flap lever is very low. Monowheel drivers will know that it takes

very little effort to move the flap in flight, the only disturbance to this is the weight of the wheel which

is balanced by the shock chord.

Graham





        From: Tony Renshaw <tonyrenshaw268(at)gmail.com>

 To: "<europa-list(at)matronics.com>" <europa-list(at)matronics.com> 

 Sent: Saturday, 14 June 2014, 0:42

 Subject: Flap Actuator Load Calcs.....how do I do it??

  

 

--> Europa-List message posted by: Tony Renshaw <tonyrenshaw268(at)gmail.com (tonyrenshaw268(at)gmail.com)>



Gidday

My electric flap actuator can take a 110 lb dynamic load, and a 500 lb static load. I want to know how to work out the dynamic load on the flap at max flap limit speed. If I can work out the area of my flaps, and know the full flap deflection angle, and limit speed, does anyone know how to calculate the force to drive the flaps to their extended position?

Thanks

Tony Renshaw



Sent from my    - The Europa-List Email Forum /Navigator?Europa-List" target="_blank">http://www.matronics.com/Navigatosp;              - MATRONICS WEB FORUMS -

=   -->

- The Matronics Europa-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Europa-List

tonyrenshaw268(at)gmail.c
Guest

Posted: Sat Jun 14, 2014 1:21 pm Post subject: Flap Actuator Load Calcs.....how do I do it??

Hi Graham,

I'm doing the Bob Berube fixed gear taildragger, so I might have some loads though?

Regards

Tony R.



On 14 Jun 2014, at 20:43, GRAHAM SINGLETON <grahamsingleton(at)btinternet.com (grahamsingleton(at)btinternet.com)> wrote:

[quote]Tony

the air load on the flaps is (almost completely) balanced, so the load

on the flap lever is very low. Monowheel drivers will know that it takes

very little effort to move the flap in flight, the only disturbance to this is the weight of the wheel which

is balanced by the shock chord.

Graham





        From: Tony Renshaw <tonyrenshaw268(at)gmail.com (tonyrenshaw268(at)gmail.com)>

 To: "<europa-list(at)matronics.com (europa-list(at)matronics.com)>" <europa-list(at)matronics.com (europa-list(at)matronics.com)> 

 Sent: Saturday, 14 June 2014, 0:42

 Subject: Flap Actuator Load Calcs.....how do I do it??

  

 

--> Europa-List message posted by: Tony Renshaw <tonyrenshaw268(at)gmail.com (tonyrenshaw268(at)gmail.com)>



Gidday

My electric flap actuator can take a 110 lb dynamic load, and a 500 lb static load. I want to know how to work out the dynamic load on the flap at max flap limit speed. If I can work out the area of my flaps, and know the full flap deflection angle, and limit speed, does anyone know how to calculate the force to drive the flaps to their extended position?

Thanks

Tony Renshaw



Sent from my    - The Europa-List Email Forum /Navigator?Europa-List" target="_blank">http://www.matronics.com/Navigatosp;              - MATRONICS WEB FORUMS -

=   -->   D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D uropa-List"">http://www.matronics.com/Navigator?Europa-List D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D //forums.matronics.com D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D ot;">http://www.matronics.com/contribution D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D  





[b]

- The Matronics Europa-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Europa-List

JonathanMilbank

Joined: 14 Apr 2012
Posts: 391
Location: Aberdeen area

Posted: Sun Jun 15, 2014 1:06 am Post subject: Re: Flap Actuator Load Calcs.....how do I do it??

When I converted my mono-wheel to tri-gear a year and a half ago, I took the good advice of not installing an electric motor for the flaps, which would have added weight, complication and possibly less reliability.



So my flaps are raised and lowered manually using the originally installed lever for combined flap-undercarriage operation. Obviously when the mono-wheel got removed, so did the bungee and outriggers.



You could hardly wish for a lighter easier method and the change in dynamic air load throughout the range is barely noticeable. So don't worry, be happy!

- The Matronics Europa-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Europa-List

tonyrenshaw268(at)gmail.c
Guest

Posted: Sun Jun 15, 2014 1:14 am Post subject: Flap Actuator Load Calcs.....how do I do it??

Hi Jonathan,

Thank you for the input, and whilst there is potential complexity, I’m pretty happy with the product I have sourced. 



http://www.speedwaymotors.com/Search?query=actuator



I have more confidence with my equipment now. Appreciated

Regards

Tony Renshaw



On 15 Jun 2014, at 7:06 pm, jonathanmilbank <jdmilbank(at)yahoo.co.uk> wrote:



 	  Quote: 	
		   

 

 When I converted my mono-wheel to tri-gear a year and a half ago, I took the good advice of not installing an electric motor for the flaps, which would have added weight, complication and possibly less reliability.

 

 So my flaps are raised and lowered manually using the originally installed lever for combined flap-undercarriage operation. Obviously when the mono-wheel got removed, so did the bungee and outriggers.

 

 You could hardly wish for a lighter easier method and the change in dynamic air load throughout the range is barely noticeable. So don't worry, be happy!

 

 

 

 

 Read this topic online here:

 

 http://forums.matronics.com/viewtopic.php?p=424860#424860

- The Matronics Europa-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Europa-List

JonathanMilbank

Joined: 14 Apr 2012
Posts: 391
Location: Aberdeen area

Posted: Sun Jun 15, 2014 2:06 am Post subject: Re: Flap Actuator Load Calcs.....how do I do it??

Just thoughts and I'm sure you've had them too. Anyway, my undercarriage/flap operating lever is in the order of a foot long, giving quite an advantage.



Are you going to connect the linear actuator straight on to the end of the flap push-rod, or are you going to incorporate some sort of bell-crank linkage to increase the leverage? Presumably there would be a limit to the length of bell-crank arm before the linear actuator would run out of travel range.



The actuator can be "inched", no doubt. Just curious and I would love to see a diagram of your proposed flap actuating system, if ever you can find the time.

- The Matronics Europa-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Europa-List

brian.davies(at)clara.co.
Guest

Posted: Sun Jun 15, 2014 10:34 am Post subject: Flap Actuator Load Calcs.....how do I do it??

There is not a lot wrong with the standard Trigear flap actuator.  Bolts

straight on the existing linkage.



Brian Davies



--

- The Matronics Europa-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Europa-List

tonyrenshaw268(at)gmail.c
Guest

Posted: Sun Jun 15, 2014 2:09 pm Post subject: Flap Actuator Load Calcs.....how do I do it??

Hi Joathan,

Normal flap actuator to the same attachment on the flap torque tube. Just probably another brand of actuator and mine comes with a three button controller. You can pre-program the positions or press two buttons at once for incremental positioning.

www.speedwaymotors.com

Search for actuators.



American product from manufacturer 

www.iaexim.com



Regards 

Tony Renshaw



Sent from my iPad



[quote] On 16 Jun 2014, at 4:33 am, "Brian Davies" <brian.davies(at)clara.co.uk> wrote:

 

 

 

 There is not a lot wrong with the standard Trigear flap actuator.  Bolts

 straight on the existing linkage.

 

 Brian Davies

 

 --

- The Matronics Europa-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Europa-List

Display posts from previous:

	Matronics Email Lists Forum Index -> Europa-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 can download files in this forum