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  #1  
Old 05-04-2007, 07:38 PM
roee roee is offline
 
Join Date: Feb 2006
Location: San Diego, CA, U.S.A.
Posts: 770
Question Elevator bellcrank redesigned?

I received my fuse in April 2005, and my DWG 26 is revision R2. Is there a newer one?

I was going to re-do my elevator bellcrank because it had some problems (including side-to-side slop in the bearing, pretty common I hear). But when I went to order the F-635A bellcrank halves from Van's website, it said they've been replaced by a new part F-635 (no 'A'). Looking up F-635, the comment says "ELEV.BELLCRANK 1 REQ". Does that mean one required instead of two? I'm guessing there was a major redesign of the elevator bellcrank?

Anyhow, I'd be interested to know how the design has changed, so I can build the new one.

Anyone who recently received their fuse kit, or otherwise has the newer design, could you please post a photo of your bellcrank or bellcrank parts? Or even better yet, a photo or scan of the plans (DWG 26 recent version) showing the elevator bellcrank assembly?

Much appreciated!
-Roee
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  #2  
Old 05-04-2007, 08:39 PM
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Sparky Sparky is offline
 
Join Date: Nov 2006
Location: Perham, MN
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Default

I received my fuse kit in December '06 and my Dwg 26 is at rev 2 like yours. According to the drawing it looks like F-635 is the entire bellcrank assembly. F-635A are each of the two halves. Van's probably just sells the entire assembly.
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  #3  
Old 05-06-2007, 11:50 AM
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rvbuilder2002 rvbuilder2002 is offline
 
Join Date: Jul 2005
Location: Hubbard Oregon
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I can't say with absolute certainty but I think it is a part that was upgraded with the fully prepunched RV-8 fuselage.
I think the part is now supplied with two halves and the required spacer, joined to each other. Break apart the three parts, deburr, and rivet.

That's why it only calls for one part (#) needed. (I Think)
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  #4  
Old 03-17-2021, 11:28 AM
LykkeEspersen LykkeEspersen is offline
 
Join Date: Dec 2017
Location: Omecourt, France
Posts: 12
Default "Play and flex less" elevator bellcranck

Although this is an old thread it is the closest I could find for sharing my modified design of the elevator bellcranck I have had in our RV9A for some time.
I have done a short video explaining the "play and flex less" bellcranck. Can be found here: http://youtu.be/IsWWdozsP2c
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[color="Navy"][i]Shadow ultralight, 9-177. Sold
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  #5  
Old 04-04-2021, 05:41 AM
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jeffkersey jeffkersey is offline
 
Join Date: Sep 2015
Location: Cottontown, TN
Posts: 302
Default Thanks for sharing...

Quote:
Originally Posted by LykkeEspersen View Post
Although this is an old thread it is the closest I could find for sharing my modified design of the elevator bellcranck I have had in our RV9A for some time.
I have done a short video explaining the "play and flex less" bellcranck. Can be found here: http://youtu.be/IsWWdozsP2c
Thanks for sharing this video. On my recent condition inspection I noticed some side to side slop in my elevator bellcrank. Nothing I felt is a safety of flight yet but something I will probably address on the next condition inspection. Do you have video of the new bellcrank installed with you putting side to side pressure on it to show the difference?
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  #6  
Old 04-05-2021, 02:07 AM
LykkeEspersen LykkeEspersen is offline
 
Join Date: Dec 2017
Location: Omecourt, France
Posts: 12
Default No ďafterĒ video available...sorry

Unfortunately not.....and I canít offer to do one for the foreseeable future as the entire France is in a Corona lockdown and I canít go to the airfield. Anyway the video would not show a lot, as there is absolutely no sideway movement.
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[color="Navy"][i]Shadow ultralight, 9-177. Sold
Pulsar 912XP OY-LLE. Sold
RV9A F-PLLE.
Piper Colt 1961 D-EDCE
Feel free to visit Franz Fonebone Aviation:
http://www.youtube.com/playlist?list...t-gexyyUt_0Zxw
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