REFLECTOR: main gear pivot bolts

Scott Baker sbakr at comcast.net
Sun Feb 11 16:12:42 CST 2007


XL=5/8"
SE=1/2"

----- Original Message ----- 
From: "Mike Dawson" <medawson250 at yahoo.com>
To: "Velocity Aircraft Owners and Builders list" <reflector at tvbf.org>
Sent: Thursday, February 08, 2007 1:21 PM
Subject: Re: REFLECTOR: main gear pivot bolts


>I thought Velocity went to 5/8 bolts and the old ones
> were 1/2 inch?
>
> Mike
> --- Scott Baker <sbakr at comcast.net> wrote:
>
>> Most of the Grade-8 bolts that Velocity receives
>> from suppliers are not
>> perfectly straight.  I've noticed a bend in the
>> bolts with enough sweep to
>> cause friction inside the steel main gear leg insert
>> bushing.  The friction
>> is such that a very light tapping with a hammer
>> easily pushes it through the
>> bushing.  This may or may not speak to what you
>> describe.
>> I have notice that most of the main gear bolts seen
>> in the Velocity Service
>> Center require a hammer and punch to remove.  This
>> leads me to believe that
>> small bends in the main gear bolts are common place.
>> SB
>>
>>
>> ----- Original Message ----- 
>> From: "Scott Derrick" <scott at tnstaafl.net>
>> To: "Velocity Aircraft Owners and Builders list"
>> <reflector at tvbf.org>
>> Sent: Thursday, February 08, 2007 10:44 AM
>> Subject: REFLECTOR: main gear pivot bolts
>>
>>
>> >I pulled my main gear off yesterday and was
>> disappointed that the 1/2"
>> > pivot bolts were slightly bent.  I only have a
>> couple hundred hours on
>> > this set of  bolts and I don't think I'm that bad
>> of a pilot when it
>> > comes to landing the thing.  Maybe its all a
>> matter of perspective
>> > though. :-)
>> >
>> > The bolts weren't bent a whole lot, and came out
>> with light persuasion
>> > from a rubber mallet, but they are bent enough
>> that I don't want to
>> > re-use them. The gear also retracted fine prior to
>> removal which is my
>> > usual test to verify all is well as the clearance
>> is fairly close for
>> > the legs and wheels up in the wings. A leg with a
>> really bent bolt won't
>> > retract or will bind somewhere, ask me how I know!
>> >
>> > I realize a redesign of this part of the system
>> would be a lot of work,
>> > but every A&P that I have shown this pivot bolt
>> system too has not liked
>> > it. Its a lot of bending forces on a long bolt
>> that is not supported in
>> > the middle very well. Maybe the fix is to use a
>> thicker sleeve in the
>> > leg to provide more support in the middle which is
>> where the bolt always
>> > bends? Or possibly a better(stiffer) alloy steel
>> for the sleeve?
>> >
>> > Anybody else with hundreds of hours on there V
>> that has had to R&R the
>> > main gear experience what I am?   Bolts always
>> just a little bent?
>> >
>> > Scott
>> >
>> > -- 
>> >
>> > -
>> >
>> >    I worry about my child and the Internet all the
>> time, even though she's
>> > too young to have logged on yet. Here's what I
>> worry about. I worry that
>> > 10 or 15 years from now, she will come to me and
>> say 'Daddy, where were
>> > you when they took freedom of the press away from
>> the Internet?'
>> >
>> >    Mike Godwin, Electronic Frontier Foundation
>> >
>> > _______________________________________________
>> > To change your email address, visit
>> > http://www.tvbf.org/mailman/listinfo/reflector
>> >
>> > Visit the gallery!  www.tvbf.org/gallery
>> > user:pw = tvbf:jamaicangoose
>> > Check new archives: www.tvbf.org/pipermail
>> > Check old archives:
>> http://www.tvbf.org/archives/velocity/maillist.html
>>
>> _______________________________________________
>> To change your email address, visit
>> http://www.tvbf.org/mailman/listinfo/reflector
>>
>> Visit the gallery!  www.tvbf.org/gallery
>> user:pw = tvbf:jamaicangoose
>> Check new archives: www.tvbf.org/pipermail
>> Check old archives:
>> http://www.tvbf.org/archives/velocity/maillist.html
>>
>
>
>
>
> ____________________________________________________________________________________
> The fish are biting.
> Get more visitors on your site using Yahoo! Search Marketing.
> http://searchmarketing.yahoo.com/arp/sponsoredsearch_v2.php
> _______________________________________________
> To change your email address, visit 
> http://www.tvbf.org/mailman/listinfo/reflector
>
> Visit the gallery!  www.tvbf.org/gallery
> user:pw = tvbf:jamaicangoose
> Check new archives: www.tvbf.org/pipermail
> Check old archives: http://www.tvbf.org/archives/velocity/maillist.html 



More information about the Reflector mailing list