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I prefer AoA to airspeed as a primary information source. AoA tells you you will slow down whereas ASI tells you you have already slowed down.
Stall is caused by critical AoA, which does not change w ...

Somehow the aoa beeping is easier to assimilate for me than smart ass voice which seems to be nagging!"

There is an easy way to get the best of both "worlds": SmartASS allows you to ...

Update: yesterday I tested to see how well the DC-DC converter does its job with a battery in less than optimal condition (12.1 Volts without any loads on it).

I saw that the output voltage of the ...

As promised: I have now tested my little circuit it in-situ on the plane, and I can confirm that I no longer have brownouts and cannot observe any ill effects.

I do not have the tools to do detaile ...

This afternoon Europa PH-BGV crashed immediately after take-off at Hilversum Airport (EHHV). I regret having to inform you that the 36-year old pilot (son of the builder of BGV) lost his life. cry: cr ...

I received the last bit today (DC/DC converter) and had some time to kill this evening, so I built the circuit and tested it successfully on the bench.

I used a Ripca 2152C for the relay and this l ...

I did a little experiment on Saturday after having finalized the wiring on my strobes. Specs ask for 5A fuse, so I put a 5A fuse in and lighted up the strobes.

Having read this post on Friday nigh ...

A capacity test looks at useful energy available in chemical storage. The battery is loaded with y amps (endurance value) and time down to 11 volts (in lead acid world) is noted.
Thanks for correct ...

Hi Marcel;
Hi All;
It is for that very reason that I have two (2) twenty amp, internally regulated, permanent magnet alternators installed.
Cheers! Stu.
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Yeah, I have that on my wishlist too ...

Marcel, what do you use for your "load" when you do the load test?
One of these: http://www.westmountainradio.com/product_info.php?products_id=cba4

Looking at the specs that "Lithium" model seems to be identical to the model I have for my Odyssey 545 battery, it also uses the same charging/testing strategy.

Having a different model, ...

Thanks to David Joyce I am no longer in need for the phenolic firewall material, so this request can be ignored from now on.

Thanks John for the information. You're probably right that 1mm SS is overkill.
Your suggestion of the plastic grommet will be taken into consideration (although plastic by itself does do much with r ...

Hi David,

Please check your mail, i have sent you one at davidjoyce(at)doctors.org (hopefully that one works; if not, please let me know how to contact you).

Thanks!
Marcel

I am in the process of replacing the steam gauges with glass, plus redoing major portions of the electrical system as it that did not meet my standards (by a long shot).

Inevitably, I am punching ...

Thanks Joe!

One question as there's too many different types of diodes and I'm having trouble finding what I need: any suggestions for what type of diode is needed for the arc-suppression high-current rating line ...

The main purpose of a diode across the relay coil is to short out induced voltage being generated by the collapsing relay magnetic field. Sure, I did not mention that as that seems obvious to me, but ...

Which would then be integrated in my schema as shown below.
Any flaws with that?

Thanks Bob and Joe, thanks for your (very) quick replies Wink

, much appreciated!

So, let me rephrase to see if I understand the workings of Bob's schema correctly:

- the diode across the coil make ...