VansAirForceForums  
Home > VansAirForceForums

- POSTING RULES
- Donate yearly (please).
- Advertise in here!

- Today's Posts | Insert Pics

  #1  
Old 01-06-2017, 02:28 PM
Djgeib Djgeib is offline
 
Join Date: Jun 2012
Location: Fernandina, Fl
Posts: 74
Default HS question

In the notes on the HS drawing it shows cut out material from the his-609PP to allow room for the elevator control horns to have clearance. It shows a hatched out area and refers to DWG 27A which I have been unable to find. Does anyone have dimensions of how far down the rear spar to cut to allow for sufficient clearance? From looking at it it appears that going even with the second rivet hole would work but recommendation from someone who has installed the elevator would be appreciated.
Thanks
__________________
Doug Geib
KFHB
RV8 empennage complete
QB wings started
Reply With Quote
  #2  
Old 01-06-2017, 04:26 PM
SgtZim SgtZim is offline
 
Join Date: May 2015
Location: Crittenden, ky
Posts: 194
Default

I'd wait until time to install the stab on the fuse - which I have not done yet. I think this will allow you to get everything set, get the right travel on the elevator throw, and cut away minimum material. You'll have the correct page and appropriate instructions when you get the fuselage or finishing kits.
__________________
RV-8 slow build
IO360-M1B Sensenich fixed pitch
Garmin G3X
GTN 625
GNC 255
GTR 20
GTX 45R
G5 x 2

Facebook "log" https://www.facebook.com/BZsRVproject/
Reply With Quote
  #3  
Old 01-06-2017, 08:05 PM
xblueh2o xblueh2o is offline
 
Join Date: Apr 2011
Location: SF East Bay
Posts: 852
Default

The trimming on the 609-PP is for elevator control horn clearance to achieve sufficient travel. The instructions for when to trim are in the "Elevator Control System" section. In my plans it is on page 8-58, second to last instruction step on the page. If you look at Dwg 78, elevator stop adjustment, you can get an idea of why you are trimming that area.
I don't know that it really buys you anything to do it now aside from simpler access. Full disclosure, I pre-trimmed mine during the HS build but I did have to fine tune it during the elevator install/adjustment so I don't think I gained anything by doing it early.
__________________
Sam
RV-8 with the Showplanes Fastback conversion
Emp completed except for glass work
Wings completed except for bottom skin and glass work
Fuselage underway
N18451 reserved
Reply With Quote
  #4  
Old 01-07-2017, 08:30 AM
Mach.26's Avatar
Mach.26 Mach.26 is offline
 
Join Date: Jan 2017
Location: Ozark, AL
Posts: 62
Default

Personally, I went ahead and made a conservative trim of the lower spar flange before riveting using the drawings and looking at how the WD-605 horns attach. It will be less cutting to do and less chance of nicking the reinforcement bars later. That being said, I may have to widen it out a bit later as you dont want any chance of binding there but at least I have a start. I believe I went the width of the HS-411 bracket plus a additional 3/16"- 1/4" for clearance either side.
__________________
Adam Wright
RV-8 Builder 83611
Reply With Quote
  #5  
Old 01-07-2017, 08:39 AM
Djgeib Djgeib is offline
 
Join Date: Jun 2012
Location: Fernandina, Fl
Posts: 74
Default

I appreciate the responses. I would like to cut it now, before I prime and reassemble. I've looked at drawing 78. Think I'll pull out the elevator horns and mock attach them to get an idea of how much clearance I need. Hopefully I won't need to retrim later.
__________________
Doug Geib
KFHB
RV8 empennage complete
QB wings started
Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

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

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -6. The time now is 01:07 AM.


The VAFForums come to you courtesy Delta Romeo, LLC. By viewing and participating in them you agree to build your plane using standardized methods and practices and to fly it safely and in accordance with the laws governing the country you are located in.