REFLECTOR: Canard Cover and cowl attachment system

Thu Jul 7 10:09:27 CDT 2005

Andy,

Right you are, unfortunately my blind nuts are 8-32s, so I'll have to drill all the rivets and replace them with new nuts.  Yes, I did buy a fistful of the 10-32 x 3/4" just in case I decide to change out the nuts, which I will eventually do.  They are nice screws, as screws go, though I admit I'm not a connoisseur!

Chuck

-----Original Message-----
From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org]On
Behalf Of Andy Millin
Sent: Thursday, July 07, 2005 10:40 AM
To: 'Velocity Aircraft Owners and Builders list'
Subject: RE: REFLECTOR: Canard Cover and cowl attachment system

Chuck,

http://www.microfasteners.com/catalog/products/SSCFCMXS.cfm

10-32 3/4" torx is the only length they DO have.  I bought some.  They are
nice.

Andy

-----Original Message-----
From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On
Behalf Of Chuck Jensen
Sent: Thursday, July 07, 2005 10:13 AM
To: Velocity Aircraft Owners and Builders list
Subject: RE: REFLECTOR: Canard Cover and cowl attachment system

Scott,

3/4" torx are available, but not with the 100 degree head from
microfastners, http://www.microfasteners.com.  Given the low load and
tinnerman underneath, I suppose a person could get by with screws with the
wrong head angle, but we all hate to start down that path.  

I asked Microfastners if they would make any 3/4" torx.  He said I was the
first that had asked and if he filled an order for 100, he'd have 14,900
left over from his minimum order.  I told him that would be okay with me but
he seemed unpersuaded!  

Chuck

-----Original Message-----
From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org]On
Behalf Of Scott Derrick
Sent: Thursday, July 07, 2005 9:58 AM
To: Velocity Aircraft Owners and Builders list
Subject: Re: REFLECTOR: Canard Cover and cowl attachment system

Chuck,

Yeah I keep a ready supply of new stainless screws on the top of my tool 
box.  I refuse to use a worn looking screw and toss them in the trash.

I can see how I could do the hinges where the cowls fit to the wings, 
but the fuselage junction seems a tough one? 

I don't like the idea of the piano wire coming out into the arc of the 
prop.  That would require a bullet proof secure method.

I'm surprised you can't get a 3/4" torx screw?

Scott

Chuck Jensen wrote:

>Scott, I concur about the screws and washers.  I do a little Irish 
>dance every time I strip a Phillips head.  Fortunately, out of the 
>dozens on the cowling and dog house, I've yet to lose one through the 
>prop, at least I've not noticed any memory marks on the prop.
>
>Ron Brown has the piano hinge arrangement on his and it certainly seems 
>to work well.  While I'd like a better/faster system, its safe to say 
>that modifying mine is not on the to-do list.  As a half-step, I'd like 
>to go to the torx screws but they don't make any screws 3/4" long, 
>which I need to reach the blind nut on the rear attachment points, so 
>I'll just keep stripping Phillips.
>
>Chuck
>
>-----Original Message-----
>From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org]On
>Behalf Of Scott Derrick
>Sent: Wednesday, July 06, 2005 7:48 PM
>To: Velocity Aircraft Owners and Builders list
>Subject: Re: REFLECTOR: Canard Cover and cowl attachment system
>
>
>Chuck, I hate all those stainless screws and washers, so does my prop!
>
>Can you get some pictures of all the hinges with a description together
>for those of us that want to change to your system?
>
>You could post them on tvbf or I could on tvbf or my site?
>
>thanks,
>
>Scott
>
>Chuck Harbert wrote:
>
>  
>
>>I have the small canard cutout (approx 7" by 24"), and it is fastened
>>without screws/fasteners. It uses aluminun wedges on the forward part 
>>and a spring loaded door latch on the aft side. I open it by pulling a 
>>cable (runs inside a plastic tube) that opens the door latch. I also 
>>have a couple springs pushing the cover up, so that it doesn't move. I 
>>use the same system for the front top door (gear access door?). It 
>>works fine and doesn't move in flight, plus it's very easy to open and 
>>close. I understand that some other Velocity's use this system.
>>
>>The thing I like best is my cowl attachment system which uses 6 piano
>>hinges only (no screws or fasteners). I can take off my cowls in about 
>>10 seconds (I've done it). I saw this type of system on a Lancair, and 
>>it wasn't that difficult to build, plus it's stronger and doesn't wear 
>>out or crack. Don't know if anybody has this on their Velocity.
>>
>>Chuck H
>>
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>>
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