REFLECTOR: Main wheel angle

Thu Sep 3 18:17:13 CDT 2009

I guess it can be. reinforces the whole reason I chose a different power plant, & the long wing. 

Now... Just have to wait & see if I did it right!! :) 

Kurt 

-----Original Message-----
From: Scott Derrick <scott at tnstaafl.net>
To: Velocity Aircraft Owners and Builders list <reflector at tvbf.org>
Sent: Thu, Sep 3, 2009 4:27 pm
Subject: Re: REFLECTOR: Main wheel angle

Kurt,

Your runway is a great challenge for some of the "Fast Glass"
airplanes..... 

Specially in the summer time!

Scott

nmflyer1 at aol.com wrote:
> Nice!!! 
>  I'd love to be up there & see it.
>  
> Had a V-Driver visit this last week. Very nice Standard RG. Watched
> him take off out of Belen.. sure took a lot of pavement. Glad I'm
> using a littl extra power.
>  
>  Kurt 
>
>
> -----Original Message-----
> From: Scott Derrick <scott at tnstaafl.net>
> To: Velocity Aircraft Owners and Builders list <reflector at tvbf.org>
> Sent: Mon, Aug 31, 2009 7:09 pm
> Subject: Re: REFLECTOR: Main wheel angle
>
> I setup the gear a few years ago when I put new legs on her.  As I
> remember the instructions called for doing it unloaded which is what I
> did.  She taxi's straight and runs down the runway straight, but the
> negative camber when loaded bothers me.
>
> I'd just build in more camber but it would require elongating the holes
> through the legs for the axle.  They fit perfectly now and I hate to do
> that as it seems weaker if the bolts aren't a snug fit.
>
> I am really close to flying,  hopefully high speed taxi test this weekend!
>
> Scott
>
> nmflyer1 at aol.com <mailto:nmflyer1 at aol.com> wrote:
> > Scott:
> >  
> > I had posted some concerns about my wheels in the past. I didn't have
> > the wings or engine on when I first aligned my gear. If I remember
> > right, my old plans didn't say to have it loaded to set the alignment.
> >  
> > Once  put on the wings, engine, instrument panel etc, things changed a
> > LOT. I remember being concerned that if I set it at that point, it
> > would change a bunch more when fully loaded.
> >  
> > I talked to someone at the factory, and was told that most of the
> > change would occur where/when it happened to me, but that there would
> > be a little more change going from empty to full gross.
> >  
> > I opted to set my alignment with the empty plane, half tanks of fuel,
> > and about 600 pounds inside (about where people would sit).
> >  
> > Then I made an "alignment shim" It
 is basically a 1/8" piece of
> > aluminum, and then kind of follow the plans...
> > What I did was set the toe in on the outside of the aluminum shim..
> > like it says to do in the plans. Then I set the camber on the opposite
> > side of the shim. It made it much easier to adjust one axis, without
> > messing the other up as much. I also rationalized that if I have to
> > change it later.. it will be much easier.
> >  
> > In the end, I used a micrometer to make the final adjustments. The
> > book is about right on what washer thickness gets you what toe in.
> > Problem is, I needed 1/4-1/2 of a washer thickness. No biggy, just
> > sanded one down til it was right (and wrote in my builders log so I
> > knew what I had in place).
> >  
> > It took me some time, but I am really pleased with the result. Like
> > usual, I was being pretty picky about the numbers. I figure a V that
> > tracks straight can only help with other concerns such as braking,
> > nose wheel stiffness, etc.
> >  
> > Call me if you have any questions. I'm on my way outside to work on
> > the rt door some more.
> >  
> > Kurt
> > 505-610-3676
> >
> >
> >
> > -----Original Message-----
> > From: Scott Derrick <scott at tnstaafl.net <mailto:scott at tnstaafl.net>>
> > To: Velocity Aircraft Owners and Builders list <reflector at tvbf.org 
<mailto:reflector at tvbf.org>>
> > Sent: Mon, Aug 31, 2009 5:54 pm
> > Subject: REFLECTOR: Main wheel angle
> >
> > My main gear wheels/tires have a slight positive camber when taxing
> > straight ahead with just me in the plane.
> >
> > But with a heavy load or when turning, one or both of the legs
> > splay(sic?) out a bit and the wheels show a definite negative camber. 
> > I'd say 5+ degrees.
> > It looks weird.
> >
> > I was going to try to modify the end of the leg so the axle has a angled
> > pad to bolt to that would angle the wheels a bit more so there was more
> > positive camber.
> >
> > Anybody else seen this behavior?  Done anything about it?  Thinks its fine?
> >
> > Scott
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