Scratch and Kit Built Aircraft Discuss and share your scratch built or kit built aircraft as well as building techniques, methods, mediums and resources.

Some people ask me how I check control surface movement .....

Old 02-24-2021, 10:15 PM
  #1  
solentlife
Super Contributor
Thread Starter
 
solentlife's Avatar
 
Join Date: Oct 2010
Location: Ex UK Brit now in Latvia west coast - Ventspils
Posts: 12,783
Default Some people ask me how I check control surface movement .....



Printed / drawn onto stiff thin card ..... it can be inserted into the gap between the moving surface and adjacent fixed ... taped or pinned to stop it moving while surface deflects up / down etc.

Its funny actually .... most people quote mm movement on plans etc. - but I prefer degrees as then its more related to the way the surface scribes an arc. The above card lends itself easily to that.
solentlife is online now  
Old 02-25-2021, 03:37 AM
  #2  
RKTLaunch
Member
 
Join Date: Dec 2020
Location: Texas
Posts: 82
Default

Originally Posted by solentlife View Post


Printed / drawn onto stiff thin card ..... it can be inserted into the gap between the moving surface and adjacent fixed ... taped or pinned to stop it moving while surface deflects up / down etc.

Its funny actually .... most people quote mm movement on plans etc. - but I prefer degrees as then its more related to the way the surface scribes an arc. The above card lends itself easily to that.
Using mm doesn't make sense...an aileron may be narrower than an elevator... making where you measure relative.

Degrees are absolute. The length or distance makes no difference.
RKTLaunch is offline  
Old 02-25-2021, 04:36 PM
  #3  
solentlife
Super Contributor
Thread Starter
 
solentlife's Avatar
 
Join Date: Oct 2010
Location: Ex UK Brit now in Latvia west coast - Ventspils
Posts: 12,783
Default

Yes degrees are absolute - but the mm are related to the surface stated for .... so ie 5mm on a narrow chord control will mean more degrees than 5mm on a wide chord control.
solentlife is online now  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
AEAJR
Beginners
166
11-02-2021 02:03 PM
AEAJR
General Electric Discussions
225
05-27-2020 06:48 PM
AEAJR
Beginners
8
08-13-2013 11:29 PM
propduster8
General Electric Discussions
21
12-13-2012 02:42 PM
AEAJR
Hi-Performance and Sailplanes
3
04-09-2012 01:57 PM

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
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


Quick Reply: Some people ask me how I check control surface movement .....


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information -

Copyright 2021 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.

Page generated in 0.07135 seconds with 11 queries