Go Back   Knife Edge > RealFlight - Current Products > RealFlight 8
Use of this site is subject to our Terms of Use. | Looking for technical support? Read this!

Reply
 
Thread Tools Rate Thread Display Modes
  #1  
Old 09-20-2019, 02:03 PM
I Like Pattern I Like Pattern is offline
Registered User
 
Join Date: Sep 2019
Posts: 2
Can you simulate Expo by editing Physics parameters in RF models?

I have been enjoying flying an F3A pattern plane that I downloaded from this site. It flies wonderfully except one exception. Down elevator is way too sensitive. If I were flying the real thing, I could easily adjust Expo for Less down elevator. Can that be done in the real flight Sim? I was thinking maybe in a parameters in physics? Thanks!
Reply With Quote
  #2  
Old 09-20-2019, 02:13 PM
BrokeDad's Avatar
BrokeDad BrokeDad is online now
Registered User
 
Join Date: Dec 2014
Posts: 2,035
Under Radio - Output Channel in the editor you can add both low rate expo and high rate expo values.
Reply With Quote
  #3  
Old 09-20-2019, 02:18 PM
technoid's Avatar
technoid technoid is online now
Registered User
 
Join Date: Oct 2014
Location: Texas
Posts: 6,254
Quote:
Originally Posted by I Like Pattern View Post
I have been enjoying flying an F3A pattern plane that I downloaded from this site. It flies wonderfully except one exception. Down elevator is way too sensitive. If I were flying the real thing, I could easily adjust Expo for Less down elevator. Can that be done in the real flight Sim? I was thinking maybe in a parameters in physics? Thanks!
If you go in the RF Editor and select the Elevator you can find the deflection in the panel on the right. Normally there's only one setting (Deflection) but if you select the Advanced option you'll have settings for both Maximum and Minimum deflections (plus a center setting). To select the Advanced setting use the menu at the top of the Editor.

Options->Control Surface Deflections (select the Advanced setting)

I haven't seen a separate Expo setting for each deflection though.
Reply With Quote
  #4  
Old 09-20-2019, 06:58 PM
12oclockhigh 12oclockhigh is offline
Registered User
 
Join Date: Apr 2009
Posts: 3,995
This shows a misunderstanding of Expo. Dual rates would be a much better way of lowering the travel. Or you could change the total throw. Read Up on what expo is.
Reply With Quote
  #5  
Old 09-20-2019, 09:17 PM
TomC TomC is offline
Registered User
 
Join Date: Feb 2009
Posts: 474
Quote:
Originally Posted by 12oclockhigh View Post
This shows a misunderstanding of Expo. Dual rates would be a much better way of lowering the travel. Or you could change the total throw. Read Up on what expo is.

When setting up dual rates on a Spektrum Tx you have the option to select travel and expo for each axis.

On real aircraft I personally I like to keep travel as high as I can get without servo stalling, then just use diff expo (say 10-50%) to help soften travel around centre stick. Using ~30% expo feels like ~70-75% travel around centre stick to me but still gives a lot more when you move sticks to full deflection.
__________________
Custom built gaming desktop; i9 9900k (water cooled) oc to 5ghz, gtx 1080 ti (from my previous Alienware AGA), 32 gb 3000hz ram, 1 tb ssd, 4 tb hdd. Asus ROG Maximus xi hero wifi mb, StarTech 4 port/4 controller sata powered usb3.0 pcie card, Asus vg248qe 1080p 144hz gaming monitor, Oculus Rift cv1 w/2x sensors.
Reply With Quote
  #6  
Old 09-22-2019, 03:53 AM
I Like Pattern I Like Pattern is offline
Registered User
 
Join Date: Sep 2019
Posts: 2
Quote:
Originally Posted by 12oclockhigh View Post
This shows a misunderstanding of Expo. Dual rates would be a much better way of lowering the travel. Or you could change the total throw. Read Up on what expo is.
I do understand the difference between dual rate and Expo, and Expo is what I need. Dual rate provides the chance to limit your full through
of the control surfaces an expo allows you to soften the movement in the center of the stick. That's what I'm after.
Reply With Quote
  #7  
Old 09-22-2019, 05:45 AM
TomC TomC is offline
Registered User
 
Join Date: Feb 2009
Posts: 474
Quote:
Originally Posted by I Like Pattern View Post
I have been enjoying flying an F3A pattern plane that I downloaded from this site. It flies wonderfully except one exception. Down elevator is way too sensitive. If I were flying the real thing, I could easily adjust Expo for Less down elevator. Can that be done in the real flight Sim? I was thinking maybe in a parameters in physics? Thanks!
Quote:
Originally Posted by I Like Pattern View Post
I do understand the difference between dual rate and Expo, and Expo is what I need. Dual rate provides the chance to limit your full through
of the control surfaces an expo allows you to soften the movement in the center of the stick. That's what I'm after.
Ok, so all you need to do for your selected aircraft is to go to menu/ aircraft/edit aircraft/radio/channel and modify %expo for the channel you want to change. You can also, change % expo for high and low rates. My mapping is Ch1 = Ailerons, CH2 = Elev, C4 = Rudder. You can check the mapping by selecting a ch and moving your sticks. The bottom readout will show you which stick goes from -100 to +100. After this, save the setting using a slightly different aircraft name.

If after you do this Your elevator is still too sensitive it could be because the CG is too far back. You can edit this pretty easy as well; menu/edit aircraft/physics/CG and adjust the Y axis to move it back/forth. The little picture on the editor shows which way it is moving. Generally + values moves it forward. If you are using swap aircraft it is quite common to need to make a few adjustment to make fly the way you want it to.
__________________
Custom built gaming desktop; i9 9900k (water cooled) oc to 5ghz, gtx 1080 ti (from my previous Alienware AGA), 32 gb 3000hz ram, 1 tb ssd, 4 tb hdd. Asus ROG Maximus xi hero wifi mb, StarTech 4 port/4 controller sata powered usb3.0 pcie card, Asus vg248qe 1080p 144hz gaming monitor, Oculus Rift cv1 w/2x sensors.

Last edited by TomC; 09-22-2019 at 05:53 AM.
Reply With Quote
Reply

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 07:37 PM.