Matronics Email Lists

Don,

Just ran across this post and am wondering if you ever resolved your issue?

I'm 'close' to finishing up a Long-EZ and have a Garmin GPS unit for COM1 and NAV1, but was considering the VAL 2 ...

Eric,

Just wanted to say thanks to you, Alec and Bob for making this idea become a reality. Impressive, quality work on the device as per usual.

I'll test it out as soon as I am able and report ...

Makes all the sense in the world.... now that you guys explained it!!

Crystal clear. Always good to learn something new!

Thanks Joe & Charlie!

Cheers,
Wade

Bob,

In your response on the Z13 Battery Bus Protection question in a very recent post, you reminded us that Recall that circuit protection is for WIRES . . . and that the protective device is inst ...

Joe,

Finally found that extra DPDT switch I swore I had on hand and made some slight (yet painful) adjustments to fit that sucker in.

I'll simple go with an extra wire and add this as a checklis ...

Charlie,

On the other hand, if it's in good condition it will be almost totally
topped off (fully charged) within minutes after engine start, so it
won't be sucking on the backup alternator at ...

Joe,

If you describe the intended load and under what conditions it should be turned on or off

It's a 2.5A charging lead for a backup battery system that I don't want to draw off the E-Bus in a ...

Joe,

It actually does work on the bench, but I realized I was putting these relays in series and it's not something I had seen as a normal practice. Even though it worked something didn't seem righ ...

Joe,

Thanks for your response.

I attached a diagram of the SD-8 installed in the Z-13/8 with my proposed control relay added.

I understand using a different switch, I strongly considered it, ...

Thanks Bob!

Bob, et al.

Another question for the gang. I have the B&C SD-8 alternator wired into my Z-13/8 architecture pretty much how shown in the AEC diagram.

My question is regarding a control re ...

Bob,

Thanks for your analysis of this incident. I always learn a ton through you and others on this forum!

Just for clarification, our firewalls are 1/4" Finnish birch plywood with a ply ...

Hi Don,

As for big wires coming off the Starter Contactor I have an 8 AWG B lead from the alternator that connects to the same lug on the hot side of the starter contactor. On the other side of th ...

Bob,

I have to admit I'm puzzled on what appears to be sticking to the standard convention of mounting the starter contactor/solenoid on the firewall of a pusher aircraft when the A-to-Z of the pow ...

Bob,

Roger... I'll go back and take a deeper look at all this.

Thanks!
Wade

Bob, et al.

BACKGROUND: I was doing some research on Brian DeFord's Cozy that burned up on the ramp some years back due to an electrical issue with the starting/charging system (i.e. electrical wir ...

Bob,

Thanks for confirming that fuse should be installed. I literally just bolted my SD-8 to the vacuum pad during my engine build yesterday, so now I'll plan on adding back in that inline fuse.
...

Bob,

I believe you're referring to the fuse on the main connection to the battery contactor from the S704-1 relay?

And Stu is referring to the SD-8 connection to the power bus, not the inline ...

Bob,

I'll take note of that and watch it during future testing.

Thanks again!
Wade

Bob,

I should have been a bit clearer myself on the ground wire off that unit since --you're gonna love this-- it's not on the diagram!

Yes, there is actually a separate ground wire that is not ...