Mailing List flyrotary@lancaironline.net Message #52033
From: Ed Anderson <eanderson@carolina.rr.com>
Subject: Re: [FlyRotary] Re: Dimensional help needed
Date: Sat, 4 Sep 2010 17:23:28 -0400
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Bryan, if you decided to drill your legs, in addition to a drill press, the drill bit itself is important.  I would not attempt it unless I used a quality colbalt drill bit (not carbide - too brittle).  I would start off with a drill bit undersize but not smaller than 1/8" perhaps 3/16" (too small and they may wander).  Then if you progressively enlarge the hold with a larger drill bit, you are more likely to drill a straight hole.  You will need to drill at a slow rpm or risk burning the drill bit and hardening the metal even more.
 
If you do not feel comfortable doing this, then the shipping charges to someone who knows what they are doing is probably cheap in the long run.
 
I drilled my own (successfully), but, only because I could not find anyone at the time to do it for me{:>)
 
Ed
 
Edward L. Anderson
Anderson Electronic Enterprises LLC
305 Reefton Road
Weddington, NC 28104
http://www.andersonee.com
http://www.eicommander.com

Sent: Saturday, September 04, 2010 5:12 PM
Subject: [FlyRotary] Re: Dimensional help needed

That’s what I wanted to do, but Ed K prefers to mount the clips undrilled.  This forces me to drill the legs.  But, he is apparently able to use Van’s mount.  Did he charge more for this approach as opposed to his preferred way?  I guess shipping is more costly.

I guess I need to run it by him again.  I haven’t bought any mount, but I really don’t want to drill my legs.

BW

 


From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Bob Perkinson
Sent: Saturday, September 04, 2010 5:02 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: Dimensional help needed

 

Bryan,

The gear legs were straight from Vans.  After having been ripped off by Fred Breeze (Conversion Concepts) I ordered an engine mount and matching gear legs from Vans and had Ed Klepis convert it. I had bought a pair from Harman Lang several years ago to be match drill to the CC mount, but after spending the money and not getting the mount I sold them to someone in Texas can't now remember.  The only advice that I can relay is that of a machinist friend.  Use a good sharp centering punch and good luck if you don't have a good drill press to mount the gear leg in.

Wish I could help more.

 

Bob Perkinson

RV-9  13B


From: Bryan Winberry <bryanwinberry@bellsouth.net>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Fri, September 3, 2010 4:38:41 PM
Subject: [FlyRotary] Re: Dimensional help needed

Bob,

Any tips on drilling your gear legs?

Thanks,

Bryan

 


From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Bob Perkinson
Sent: Friday, September 03, 2010 5:03 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Dimensional help needed

 

Charlie,

as you can see in the photo I used a laser light level to find the distance, but as you probably know the line gets somewhat thick the father you get from the source.  SO you can add or subtract a 16 th.  I got 4" 15/16.  Ed Klepis probably has that figure in his notebook.  Let me know what other numbers you come up with.

 

Bob Perkinson

RV-9  13B

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