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24AWG airframe wire

 
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nuckolls.bob(at)aeroelect
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PostPosted: Sat May 05, 2018 2:43 am    Post subject: 24AWG airframe wire Reply with quote

At 11:38 AM 5/4/2018, you wrote:
Quote:
Bob,

From my limited experience, I see no demonstrable benefit to working with wire as fine as 24AWG. Certainly the weight is a non-issue. 24AWG is downright dainty compared to 20AWG. I think it is criminal that Ray Allen uses such fine wire in its servo pigtails. To me, using such fine wire is just asking for trouble.

I had conversations with those folk about
that several years running at OSH. Those
conversations that prompted the article I posted at . . .

https://goo.gl/GmNi5Q

The use of 24 AWG in Premier wasn't so
much a weight thing as it was a volume
and to some extent a flexibility issue.

The battle between various systems groups
can approach blood-letting ferocity when
parceling out spaces in the airframe. Of
course, the engine and flight controls
guys are at the top of the hierarchy
with everyone else scrambling for the
'scraps'. My heart bled for the HVAC
guys . . . making ductwork smaller
was never a happy thought.

I had the electrical-avionics group on
the GP180 when it was still a joint
venture between Gates and Piaggio . . .
so been there, done that. We were happy
to get Tefzel wires on the airplane at
the time.

The 'open' spaces between cabin trim
and the aircraft skin on that airplane
was just about an inch . . . There
were structural limitations on just
how big a hole you could put in a former
to run tubes, wires, etc. I wasn't closely
connected to the Premier program at Beech,
but wrestling matches were equally exciting
if not more so.

The 24AWG in airframe bundles was all
assembled on form boards with wires measured
and terminated on automatic machines. It
had very little impact on the line techs.

But I agree, the 24AWG flying leads off
the MAC/RA servos served no customer-friendly
purpose.




Bob . . .


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speedy11



Joined: 29 Jun 2015
Posts: 38
Location: Port Orange, FL

PostPosted: Sun May 06, 2018 8:35 am    Post subject: 24AWG airframe wire Reply with quote

Agree. I had to provide support for the Ray Allen 24AWG wires at the servo to insure there would be no flexing.
Do you know if there are any reported issues due to Allen's use of the tiny wire?
Stan Sutterfield

Quote:
>Bob,
>
> From my limited experience, I see no demonstrable benefit to
> working with wire as fine as 24AWG. Certainly the weight is a
> non-issue. 24AWG is downright dainty compared to 20AWG. I think it
> is criminal that Ray Allen uses such fine wire in its servo
> pigtails. To me, using such fine wire is just asking for trouble.

I had conversations with those folk about
that several years running at OSH. Those
conversations that prompted the article I posted at . . .

https://goo.gl/GmNi5Q

The use of 24 AWG in Premier wasn't so
much a weight thing as it was a volume
and to some extent a flexibility issue.

The battle between various systems groups
can approach blood-letting ferocity when
parceling out spaces in the airframe. Of
course, the engine and flight controls
guys are at the top of the hierarchy
with everyone else scrambling for the
'scraps'. My heart bled for the HVAC
guys . . . making ductwork smaller
was never a happy thought.

I had the electrical-avionics group on
the GP180 when it was still a joint
venture between Gates and Piaggio . . .
so been there, done that. We were happy
to get Tefzel wires on the airplane at
the time.

The 'open' spaces between cabin trim
and the aircraft skin on that airplane
was just about an inch . . . There
were structural limitations on just
how big a hole you could put in a former
to run tubes, wires, etc. I wasn't closely
connected to the Premier program at Beech,
but wrestling matches were equally exciting
if not more so.

The 24AWG in airframe bundles was all
assembled on form boards with wires measured
and terminated on automatic machines. It
had very little impact on the line techs.

But I agree, the 24AWG flying leads off
the MAC/RA servos served no customer-friendly
purpose.


Bob . . .


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nuckolls.bob(at)aeroelect
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PostPosted: Sun May 06, 2018 12:06 pm    Post subject: 24AWG airframe wire Reply with quote

At 10:58 AM 5/6/2018, you wrote:
Quote:
Agree. I had to provide support for the Ray Allen 24AWG wires at the servo to insure there would be no flexing.
Do you know if there are any reported issues due to Allen's use of the tiny wire?
Stan Sutterfield

I have not heard of any . . . I 'cooked up' the
cited article based on some conversations with
builders on the List and re-enforced by the
lack of interest by the MAC folks at OSH. If
they're still shipping product with 24AWG
flying leads, then I suspect feedback from the
field has been nil.



Bob . . .


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