Today's Message Index:
----------------------
1. 08:32 AM - Re: Infinity Stick connector? (rampil)
2. 09:31 AM - Re: Blue Mountain EFIS (rampil)
3. 10:28 AM - LED Lighting (dj45)
4. 11:32 AM - Re: Re: Infinity Stick connector? (Peter Laurence)
5. 12:09 PM - Re: LED Lighting (B Tomm)
6. 01:33 PM - Re: Re: Infinity Stick connector? (Ernest Christley)
7. 05:44 PM - MagnaFlite MZ-6222 starter (jayb)
Message 1
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Subject: | Re: Infinity Stick connector? |
Take a look at the wire gauge in the Infifity. How high do you think the
current can be?
Almost any airworthy connector can take it.
I completely agree with you about the Molex connectors.
They don't seem to wipe well and the crimps from Radio Shack don't
hold the wire reliably despite using my ProCrimp tool on them.
At the very least solder them after crimping.
Personally, I removed all of the Molex (0.6 and 0.9 sizes) before 200hr
on my airframe.
Cheers,
--------
Ira N224XS
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=159761#159761
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Subject: | Re: Blue Mountain EFIS |
Hi All,
This thread about BMA has made for interesting reading over the past few
days. I've enjoyed it and feel modestly motivated to weigh in.
I am a BMA customer, in fact, one of the first E/1 black plastic boxes came to
me. Why did I choose it? Features for price, an analysis that, in my
eyes is as true today as it was 6 years ago. I upgraded to the gold box
when it was available, and just recently replaced it with a Gen4 E/2. Yes,
I paid the freight and kept going with BMA.
The original up to the Gen3 models got a bad rep for what I consider a
poor reason. The original schema was completely flexible in its input
configuration. That meant for people like me with a rotax, could use
the probes that came with the engine, any probes would work. They
just needed to be calibrated, a concept it turns out in practice was
foreign to many builders, "system integrators (I think panel builders
is a far more accurate description BTW)", and especially non-building
owners of experimental aircraft. It turns out, most of the general aviation
never calibrates anything except the mandated encoder. This is really
sloppy practice for non-mated sensor / indicators, especially when they
are non mil or medical grade. My little experience informs me that
you cant expect better than 10%, maybe 20% accuracy in an automotive
sensor unless you calibrate it to the indicator. How many people
calibrate their oil temp and pressure probes on their RV? Not many.
Does the 10% really matter, not really in most applications. But the
BMA required calibration. The BMA also had its ADCs outside the
engine compartment and the repeated warnings about low resistance
gounds to the battery and engine block were apparently inadequate
for many people. Digital avionics and low level voltage signals just require
more care in grounding and layout than older analog systems, especially
in composite airframes (like mine). I will certainly grant you that the
manuals are a bit sparse, but then I always found that the telephone worked for
me.
For what Greg has told me, most problematic installations eventually work
once external wiring errors are caught and corrected. The BMA guys
sought to simplify installation wiring by mandating a fixed set of sensors,
none of which are unipolar and return back through the engine block.
Wiring is now much simpler as I can attest in my own install last month.
Calibration is no longer needed. I think that BMA will be out with a skin
for the Rotax engines soon so I can integrate the VDO sensors built in
to the engine.
The stuff works and I believe it provides the most advanced EFIS functions
for the price. It is also among the simplest to use in flight.
So there have been some problems with the company. I see these kinds
of issues in IT all the time. Greg chose the brand-new at the time SISC
CPU chip for Gen 1-2. Many thought SISC would win out the future of
computing over CISC chips like the Pentium. It was faster and cheaper
right up until SISC guys went out of business. No more parts. No
evolution of SISC. Technology moves fast, airplane building slow.
I bought early, so do most. Some get more burned than others. Anyone
want a Mode S transponder? ANyone want a 430, I heard the WAAS
upgrade will be simple and very cheap!
Most of Gen3 features worked out the door, but some did not. Some
worked for some owners and not for others. More strenuous beta testing
might help. Again not very different for many vendors from airframe kits
to headsets. Ever hear of ADs?
I don't work for Greg, et al, I'm just a customer who has appreciated life
on the bleeding edge with my experimental aircraft. You might even
find me at the BMA booth at SnF talking about my experience in using
the EFIS for nearly 4 years. I am always delighted to talk to fellow
listers ;-)
Cheers
--------
Ira N224XS
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=159780#159780
Message 3
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Has anyone thought much of making LED landing/taxi lights?
Just something that might be fun to mess around with.
--------
Do not archive
Dan Stanton
N9801S
99.9% Done & Flying
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=159795#159795
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Subject: | Re: Infinity Stick connector? |
If one wants quality connectors, take a look a Deutsch. They're distributed
by Ladd Industries. LADD Industries- Deutsch IPD Electrical Connectors
Used them on a Velocity. Four years and five hindred hours later not a peep
from the connectors. These are high end products and are not cheap..
However, neither is building an airplane.
Peter
----- Original Message -----
From: "rampil" <ira.rampil@gmail.com>
Sent: Tuesday, January 22, 2008 11:28 AM
Subject: AeroElectric-List: Re: Infinity Stick connector?
>
> Take a look at the wire gauge in the Infifity. How high do you think the
> current can be?
> Almost any airworthy connector can take it.
>
> I completely agree with you about the Molex connectors.
> They don't seem to wipe well and the crimps from Radio Shack don't
> hold the wire reliably despite using my ProCrimp tool on them.
>
> At the very least solder them after crimping.
>
> Personally, I removed all of the Molex (0.6 and 0.9 sizes) before 200hr
> on my airframe.
>
> Cheers,
>
> --------
> Ira N224XS
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=159761#159761
>
>
>
Message 5
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Yes, it's happening. Here's one that's been discussed lately on
Vansairforce. See http://www.aeroleds.com/product.html
Bevan
RV7A wiring
-----Original Message-----
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of dj45
Sent: Tuesday, January 22, 2008 10:24 AM
Subject: AeroElectric-List: LED Lighting
Has anyone thought much of making LED landing/taxi lights?
Just something that might be fun to mess around with.
--------
Do not archive
Dan Stanton
N9801S
99.9% Done & Flying
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=159795#159795
Message 6
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Subject: | Re: Infinity Stick connector? |
Peter Laurence wrote:
> <Dr.Laurence@mbdi.org>
>
> If one wants quality connectors, take a look a Deutsch. They're
> distributed by Ladd Industries. LADD Industries- Deutsch IPD
> Electrical Connectors
> Used them on a Velocity. Four years and five hindred hours later not a
> peep from the connectors. These are high end products and are not cheap..
> However, neither is building an airplane.
>
; however, neither is building an *expensive* airplane.
There, I fixed that for you.
Truth be told, I'll end up spending much less over 6 years of building
than most guys spend on golfing, or what my brother spends on smoking.
Building airplanes gets expensive in the same way they get heavy.
Adding one more support. Beefing up a connector just a bit. Using a
material that is just a bit stronger. High end connectors might be
needed, if you're planning a trip into space or you expect the connector
to hold the wing on. Probably not even then. Makes more economic sense
to use decent hardware, then support and protect it properly. The need
for high-end parts evaporates.
I talk to a lot of fellows that are immediately resistant to the idea of
building an airplane, because they assume that it is prohibitively
expensive. We do our community a disservice if we perpetuate the myth.
Building an airplane is only expensive if we choose for it to be so.
Message 7
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Subject: | MagnaFlite MZ-6222 starter |
A (yellow tagged) MZ-6222 lightweight MagnaFlite starter came with my rebuilt O-540
engine. Does anyone know of a source to estimate real world current draw
at starter engagement so as to properly size the wire? I'm pretty sure #2 would
be safe, but can it be quantified a bit better than "hundreds of amps"?
The unit looks like it's in pretty good shape (teeth are not worn at least). Is
there any way to test the state of internal electrical stuff besides disassembly?
Thanks in advance for replies.
Regards,
Jay
RV-10 Builder
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=159889#159889
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