Matronics Email Lists

Hi Eric,

I am not familiar with a Rotax installation, so some of my comments may not apply.
Here are some things to review:

1) There is a 22AWG powering the endurance bus feed relay coi ...

Hi Bob,

Regarding the Engine Bus Alternate feed, I was envisioning it being on
during normal flight operations, since pilots are trained to switch
off the Master if they suspect an electrical ...

Hi Bob,

I just had a good look at Z101. I like it. Five comments, certainly
things you have thought of.

1) There is no overvoltage protection for the aux alternator. I
assume that is be ...

It is the choice of approach many of us struggle with (at least I do).

On one hand, there is the concept of a failed alternator triggering use of an endurance bus, so you don't have to choose what ...

You may have already caught this, but the feed to the aux alternator field needs to come from the endurance bus, or the alternator won’t work while the main bus is turned off.

Jeff Page
Dream Ai ...

This would be easier for me to understand if the plastic insulator went all the way around.

It only goes halfway, so the aluminum at the tip of the antenna is the same solid chunk of aluminum as at ...

One thing I find odd about the blade transponder antenna, is that the entire body is a chunk of aluminum. There is a horizontal band with a plastic? covering. So it seems the radiating element is pr ...

Yesterday, I pulled up the carpet and open the inspection panel to get
at the antenna connector. No connection there between the aluminium
airframe and the connector shield.

I unscrewed the ...

This is a Cessna 172, so the aluminum skin is ground.
During the measurement I made, the cable was not connected to the transponder, but was connected to the antenna.
I measured from the shield of t ...

I am installing a Garmin 335 transponder, using an existing antenna
that has been on the aluminium airplane for decades. It is a blade
style.

I was surprised to measure with the ohm meter be ...

I just wanted to say thank you to a number of people who privately
sent me a variety of documents that will be extremely helpful
installing a Garmin 335 transponder.

This list is a great reso ...

Does anyone have a current Installation Manual for a Garmin 335
Transponder that they would be willing to share ?

Thanks !

Jeff Page
Dream Aircraft Tundra #10

Bob,

I have always wondered why the feed to the main alternator field
breaker are different sizes on each side of the breaker. This is
unchanged from earlier versions.

I assume the Ebus b ...

I once read a modification that changes the file system of the Stratux to read only, which mostly requires turning off logging. This will pretty much eliminate problems corrupting the file system by ...

Thanks Alec. I knew it had to be documented as acceptable somewhere !

Jeff

DO NOT ARCHIVE

Time: 09:05:39 AM PST US
From: Alec Myers <alec@alecmyers.com>
Subject: Re: Re: Authority ...

Bob,

In Canada, most shops log pretty much everything, and the shop signing
off the annual plans to include the intercom wiring repair in the list
of things accomplished. I am happy they let ...

AeroElectic Wizards:

I replaced the coiled wired that connects the push to talk switch on
the yoke of my Cessna 172.
This meant splicing the coiled wire with the regular wire that runs
behin ...

In the event of an emergency landing or fire, it is necessary to turn
off both switches.
I suggest making that ergonomically easy to do in a single motion.

Jeff Page
Dream Aircraft Tundra #10 ...

I used
to have a stable of laboratory batteries that were
stored on a single maintainer all connected in parallel.
Some of them were service-ready after more than ten years.

Beware putting m ...

Charlie,

The Arduino is a requirement :-)
The boat already has a nice digital tach for the driver to use. The Arduino board is going to automatically set the trim of the motor based on rpm. The ...