KR> 12vdc Actuator Force

2009-03-31 Thread Scott Black
you're welcome Scott Black Beng Aero. So force on the board is Cd * dyn press * area = 84 lbs > I know there has to be a formula out there to figure this and I hope someone smarter than me can tell me the pounds of force I need to accomplish a smooth and full deployment to 80 degrees from fuselag

KR> 12vdc Actuator Force

2009-03-29 Thread Mark Langford
Mark Jones wrote: Mark, My guess is that you're thinking of getting the actuator at the Surplus Center at http://www.surpluscenter.com/ . If not, visit there and key in "linear actuator" for a lot of inexpensive options. I just got back from a great weekend with Richard Moleand even got

KR> 12vdc Actuator Force

2009-03-29 Thread Pete Klapp
-2S N729PK, Canton, Ohio > From: flyk...@charter.net > To: kr...@mylist.net; corvaircr...@mylist.net > Date: Sun, 29 Mar 2009 08:02:05 -0500 > CC: > Subject: KR> 12vdc Actuator Force > > I need to replace the 12vdc actuator on my belly board. > Search the KRnet Archiv

KR> 12vdc Actuator Force

2009-03-29 Thread Scott Black
area=1.875 sq ft speed=110*5280/3600=161.3 ft/sec dyn press=.00238*.5*161.3*161.3=31 lb/sq ft Cd for finite plate is 1.45 (not 1 because of wake drag - see Horner text) So force on the board is Cd * dyn press * area = 84 lbs which you can estimate acts at the center of the board. You then need to

KR> 12vdc Actuator Force

2009-03-29 Thread Mark Jones
>Kevin Golden wrote: >Did your actuator quit? How many hours on it? If it did quit, then the >actuator isn't sized right for the application or maybe some other problem >occurred My actuator is the one used on the flaps of RV aircraft so I know it is correct for the application. It has 250 fl

KR> 12vdc Actuator Force

2009-03-29 Thread tinya...@aol.com
Did your actuator quit? How many hours on it? If it did quit, then the actuator isn't sized right for the application or maybe some other problem occured? I would just go to an industrial supplier and get what you need. Take what you have with you and they should be able to at least matc

KR> 12vdc Actuator Force

2009-03-29 Thread Mark Jones
I need to replace the 12vdc actuator on my belly board. I could buy another from Van's Aircraft but I prefer not to spend the $320 they want for it. I found another source where I can buy them at 1/3rd the cost of Van's. What I need to know is the pounds force it takes to deploy my belly board.