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  Topic: P-leads connector
donjohnston

Replies: 4
Views: 1708

PostForum: AeroElectric-List   Posted: Sun Apr 10, 2022 8:04 am   Subject: Re: P-leads connector
Considering the number of times an engine is removed, I don't think a connector for the mags is worth it.

Just my .02
  Topic: Static Events On Composite Airplanes
donjohnston

Replies: 15
Views: 4312

PostForum: AeroElectric-List   Posted: Sun Mar 06, 2022 2:26 pm   Subject: Re: Static Events On Composite Airplanes
On Sat, Mar 5, 2022 at 10:55 AM donjohnston <don> wrote:

--> AeroElectric-List message posted by: "donjohnston" <don>


Ceengland wrote:
> Even though it's a com ...
  Topic: Static Events On Composite Airplanes
donjohnston

Replies: 15
Views: 4312

PostForum: AeroElectric-List   Posted: Sat Mar 05, 2022 8:51 am   Subject: Re: Static Events On Composite Airplanes
Even though it's a composite airplane with now underlying conductive mesh? "Absolutely." My response was "What else ya got?"



Should have been: no underlying conductive mes ...
  Topic: Static Events On Composite Airplanes
donjohnston

Replies: 15
Views: 4312

PostForum: AeroElectric-List   Posted: Sat Mar 05, 2022 6:16 am   Subject: Re: Static Events On Composite Airplanes
My pilot side Grand Rapids HXr attitude and magnetic heading went wonky while flying through light rain in between layers. Showed a continuous steep descending left turn. That got my attention!

A ...
  Topic: Thread Lacing Tape
donjohnston

Replies: 31
Views: 9612

PostForum: AeroElectric-List   Posted: Wed May 12, 2021 7:23 am   Subject: Re: Thread Lacing Tape
On my plane the only place I used zip ties (or tie wraps or whatever you want to call them) is where using lacing cord was impractical. Mostly hard to reach places. Used them in the engine compartmen ...
  Topic: Plumbing Instruments
donjohnston

Replies: 12
Views: 5270

PostForum: AeroElectric-List   Posted: Sun Apr 18, 2021 5:22 am   Subject: Re: Plumbing Instruments
+1 for the Steinair fittings. I particularly like the banjo fittings. Lets you get a real close fit and being able to rotate the fitting is added bonus.
  Topic: LR3 field on ECB
donjohnston

Replies: 1
Views: 1700

PostForum: AeroElectric-List   Posted: Wed Apr 07, 2021 3:03 am   Subject: Re: LR3 field on ECB
Mine was. Then again, there was a specific connector for the primary and standby alternator field wire.

225 hours, no problems.
  Topic: A 3 phase AC (Alternating Current) question
donjohnston

Replies: 4
Views: 3368

PostForum: AeroElectric-List   Posted: Sun Feb 14, 2021 2:08 pm   Subject: Re: A 3 phase AC (Alternating Current) question
Would I use one leg of the 230v supply to power the coil?

(I haven't used a relay like this before)
  Topic: A 3 phase AC (Alternating Current) question
donjohnston

Replies: 4
Views: 2210

PostForum: AeroElectric-List   Posted: Sun Feb 14, 2021 2:02 pm   Subject: Re: A 3 phase AC (Alternating Current) question
How often do you switch? Perhaps a simple
drop-cord off each motor with a twist-lock
plug could be used to mate the in-service
motor with its power source.

Unfortunately, often enough that I'd r ...
  Topic: A 3 phase AC (Alternating Current) question
donjohnston

Replies: 4
Views: 3368

PostForum: AeroElectric-List   Posted: Sun Feb 14, 2021 12:00 pm   Subject: A 3 phase AC (Alternating Current) question
Looking for some solutions on a project.

I have a lathe/mill combo. I'm going to be upgrading it by replacing the motors and controlling them with VFD's. Space is tight and it occurred to me that ...
  Topic: Vertical Power VP-100 opinions ?
donjohnston

Replies: 4
Views: 3156

PostForum: AeroElectric-List   Posted: Mon Jan 18, 2021 7:39 am   Subject: Re: Vertical Power VP-100 opinions ?
I would advise against it.

From Vertical Power back in 2015.

Product obsolescence usually brings angst with both customers and their supplier. We at Astronics Ballard Technology had an unusual ...
  Topic: Can radials of home made ground plane be tapered?
donjohnston

Replies: 3
Views: 1916

PostForum: AeroElectric-List   Posted: Mon Sep 28, 2020 5:15 am   Subject: Re: Can radials of home made ground plane be tapered?
I would have to agree. I've had the antenna for a GTN625 installed in a fiberglass airplane with no groundplane for 5 years and never had a problem with reception.
  Topic: Lycoming EIS wirig recommendation
donjohnston

Replies: 3
Views: 2570

PostForum: AeroElectric-List   Posted: Wed Sep 09, 2020 1:33 pm   Subject: Re: Lycoming EIS wirig recommendation
It's a SureFly.

https://www.lycoming.com/eis

The Lycoming EIS was developed by SureFly Partners, Ltd. with input from Lycoming’s engineering teams to meet Lycoming’s exacting specifications. ...
  Topic: AV 30 Wiring
donjohnston

Replies: 4
Views: 2492

PostForum: AeroElectric-List   Posted: Wed Sep 09, 2020 1:28 pm   Subject: Re: AV 30 Wiring
I would agree. On the second drawing, the only place TPS is shown is on those wires with the "X".

Although it does appear the shields are grounded in two places. I thought the idea was ...
  Topic: Brownout Step Up Converter
donjohnston

Replies: 20
Views: 7596

PostForum: AeroElectric-List   Posted: Mon Sep 07, 2020 4:56 am   Subject: Re: Brownout Step Up Converter
I used the IPS from TCW Tech. It worked fine.

But then I pulled it and installed a backup battery for the HXr. This allows me to power up the EFIS well before turning on the master or starting t ...
  Topic: Standard mags: Lycoming
donjohnston

Replies: 5
Views: 3412

PostForum: AeroElectric-List   Posted: Mon Jul 27, 2020 6:18 am   Subject: Re: Standard mags: Lycoming
You want to start on the mag with the impulse coupling. On most engines, that would be the left mag. But you should check to make sure.
  Topic: Exploring a Different Way to Wire Avionics
donjohnston

Replies: 15
Views: 10091

PostForum: AeroElectric-List   Posted: Fri Jul 10, 2020 10:22 am   Subject: Re: Exploring a Different Way to Wire Avionics
I meant, how do you troubleshoot your installation should anything go
wrong. You seem to imply they are providing their 'box schematics ?
Yes. You receive a wiring diagram which shows the connection ...
  Topic: Exploring a Different Way to Wire Avionics
donjohnston

Replies: 15
Views: 10091

PostForum: AeroElectric-List   Posted: Thu Jul 09, 2020 4:24 pm   Subject: Re: Exploring a Different Way to Wire Avionics
I'd be wary of any connection 'box I don't know what the innards are made of if all it does is just connect things. How do you troubleshoot ?

The "innards" are just traces on a board. I ...
  Topic: Exploring a Different Way to Wire Avionics
donjohnston

Replies: 15
Views: 10091

PostForum: AeroElectric-List   Posted: Tue Jun 09, 2020 2:09 am   Subject: Re: Exploring a Different Way to Wire Avionics
I wonder if interference could be a problem, and the subsequent troubleshooting thereof?
Best Regards,Bob Verwey

None that I can tell after 5 years.
  Topic: Exploring a Different Way to Wire Avionics
donjohnston

Replies: 15
Views: 10091

PostForum: AeroElectric-List   Posted: Mon Jun 08, 2020 5:04 pm   Subject: Re: Exploring a Different Way to Wire Avionics
When I bought my Approach FastStack, I had them make the cables I needed at the time because it wasn't that much money. As things changed, I made my own cables.

The nice part is when you swap ou ...
 
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