REFLECTOR: Main Tire Tubes

[Brian Michalk]

I'm talking about part #1 from here:
http://static.veracart.com/matco/item_pdfs/2412/document1.pdf
These bolts hold the caliper together.

I saw that there were four different types of Matco tubes, which I think 
have to do with the stem location.  I was wondering which one I need.

Anyway, I'm on the road this week, and it's too late to get a 
replacement bolt in before this weekend, so I guess flight testing is 
out for me unless I can find a replacement bolt from somewhere local.

On 4/10/2013 3:11 PM, Laurence Coen wrote:
> Brian,
>
> Fixed gear=6.00-6, retract=15x6.00-6 tire size.
>
> I assume that you are talking about the bolts that attach the 
> axel/brake caliper to the gear leg.  Mine are standard AN hardware 
> with friction nuts. The brake disk is attached to the wheel with cap 
> screws (socket head).  In my install the bolt heads are on the inside 
> of the gear leg and the nuts are against the caliper mount.  They can 
> be turned around with the nuts against the gear leg but you still have 
> a bolt retained with a friction nut and that should retain torque.
>
> Larry Coen
> N136LC
>
> --------------------------------------------------
> From: "Brian Michalk" <michalk at awpi.com>
> Sent: Tuesday, April 09, 2013 9:47 PM
> To: "Velocity Aircraft Owners and Builders list" <reflector at tvbf.org>
> Subject: REFLECTOR: Main Tire Tubes
>
>> I need to order some bolts from Matco, and need to fill up at least 
>> $10. What is the tube that I need to order for the W600XT?
>>
>> Speaking of replacing bolts.
>>
>> Yes, there is a reason for those drilled socket head screws.  I had 
>> one of the four screws works its way out into the aluminum wheel.  I 
>> was on a test flight, the longest one yet at 15 minutes due to high 
>> oil temps. When I came in for a landing just as I was about to pull 
>> off the runway, the right wheel seized. I wasn't going very fast, and 
>> there doesn't appear to be any major damage.
>>
>> I had safety wired the disc to the wheel, but not the internal socket 
>> screws.  When I re-assemble, I'm going to use some Lock-Tite and 
>> safety wire.  That should keep the screws torqued down. Shouldn't 
>> there be a lock washer there anyway to maintain torque? Safety wire 
>> doesn't maintain torque, and the way these screws are used, they are 
>> really put under a lot of bending forces.
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