REFLECTOR: Nylaflow fittings

Wed Mar 7 12:23:54 CST 2012

Scott,
It depends on how much you have- a short length (as needed at a major flex
point) might not show much/enough to degrade your braking effort, motor
vehicles often have some short runs of flex line, but they also have power
boosted brakes, so the loss of brake effort is more than made up for by the
booster. I worked as an engineer for Nippondenso (now Denso Global) , they
make among other things, the brake systems for Toyota, and one of the design
considerations was to calculate how much bake effort(volume) was lost due to
the flex lines- they would try to put a coiled solid line wherever possible,
only using hose (specifically designed for brake use) when option one was
not feasible. 
If you are perfectly happy with your brakes, then that is great, I did
mis-read that you had sent the message and not Brian, but since he has some
issues, it would be advisable for him to avoid exacerbating them with larger
diameter lines, or anything else that might reduce his brake effectiveness.

Alex

-----Original Message-----
From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On
Behalf Of Scott Derrick
Sent: Wednesday, March 07, 2012 8:35 AM
To: Velocity Aircraft Owners and Builders list
Subject: Re: REFLECTOR: Nylaflow fittings

Alex,

little out of touch are we?

I, Scott, who wrote that email you replied to, have the nylaflow and braided
steel over rubber and do not have a problem in the lightest with my brakes.

Brian, who has aluminum lines, who I had replied to, does have a problem.

Maybe braided steel over rubber is not the problem you think it is?

Scott

-------- Original Message --------
Subject: Re: REFLECTOR: Nylaflow fittings
From: Alex Balic <velocity_pilot at verizon.net>
To: 'Velocity Aircraft Owners and Builders list' <reflector at tvbf.org>
Date: 03/06/2012 03:08 PM

> No, but the braided sure will- that would be your problem right there-
>
> -----Original Message-----
> From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] 
> On Behalf Of Scott Derrick
> Sent: Tuesday, March 06, 2012 12:53 PM
> To: Velocity Aircraft Owners and Builders list
> Subject: Re: REFLECTOR: Nylaflow fittings
>
> All my lines are nylaflow or highpressure braided steel over rubber, 
> no aluminum.
>
> you think the aluminum may be expanding a lot when you apply the brakes?
>
> Scott
>
> -------- Original Message --------
> Subject: Re: REFLECTOR: Nylaflow fittings
> From: Brian Michalk<michalk at awpi.com>
> To: Velocity Aircraft Owners and Builders list<reflector at tvbf.org>
> Date: 03/06/2012 11:39 AM
>
>> You are using 1/8" aluminum lines?
>>
>> I'll check the sliding assembly again this weekend. One bad thing 
>> about this small line, it's real easy to kink it with a 4" chock on 
>> the
> floor.
>>
>> On 3/6/2012 10:56 AM, Scott Derrick wrote:
>>> My lines are 1/8, my brakes are the upgraded Matco's.
>>>
>>> My brakes don't seem to behave any different than the 210's or the 
>>> Bonanza that I fly? I know they release instantly. It sounds like 
>>> something is binding up. Be sure the slide bolts are not bumping up 
>>> against the gear leg, I had to wallow out a couple hallows for mine.
>>> If they are touching the leg they can get miss-aligned and bind.
>>>
>>> that would account for the extra force required and the laggy release.
>>>
>>> Scott
>>>
>>> -------- Original Message --------
>>> Subject: Re: REFLECTOR: Nylaflow fittings
>>> From: Brian Michalk<michalk at awpi.com>
>>> To: Velocity Aircraft Owners and Builders list<reflector at tvbf.org>
>>> Date: 03/06/2012 09:30 AM
>>>
>>>> I think the standard nylaflow is 3/16. I don't know what the ID is.
>>>> I tried 1/8".
>>>>
>>>> Is anyone else using 1/8" brake lines? I also thought that the pads 
>>>> would sit just off the disk, and the instant pressure applied, it 
>>>> would engage the disk. Well, that's just not happening, and 
>>>> releasing the brakes is also laggy.
>>>>
>>>> If one watches the brake assembly, you can see it flex with the 
>>>> application of clamping force. It's because the "C" clamping system 
>>>> is pretty flimsy. If it were rigid, I don't think I would see the 
>>>> same behavior.
>>>>
>>>> On 3/6/2012 8:41 AM, Scott Derrick wrote:
>>>>> I think you have some other problem, blaming brake line size..
>>>>>
>>>>> I have the standard itsy bitsy lines and my brakes work fine..
>>>>>
>>>>> Scott
>>>>>
>>>>> -------- Original Message --------
>>>>> Subject: REFLECTOR: Nylaflow fittings
>>>>> From: Brian Michalk<michalk at awpi.com>
>>>>> To: Velocity Aircraft Owners and Builders list<reflector at tvbf.org>
>>>>> Date: 03/05/2012 03:55 PM
>>>>>
>>>>>> I did some taxi testing this weekend after fixing a toe-in and 
>>>>>> camber issue.
>>>>>>
>>>>>> The problem I am having now is that my 1/8" brake lines are just 
>>>>>> not big enough to transfer fluid without being sluggish. It 
>>>>>> works, but is annoying. I think it would work if the master 
>>>>>> cylinder didn't retract.
>>>>>>
>>>>>> Anyway, I am going to eventually go to 1/4" line, but in the 
>>>>>> meantime want to go back to nylaflow. What are those compression 
>>>>>> fittings that work with the 3/16 Nylaflow?
>>>>>> _______________________________________________
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>>>>>
>>>>
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>>
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>
> --
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> in others.
> Confucius
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