Builder Tip #81 from HomebuiltHELP 
What is an electrical Ground Loop and how can it be avoided?
There are two kinds of ground loops to avoid when flying an aircraft: the kind where directional control is lost when on the ground; and the other kind involving electrical wiring . Our Tip this week involves the latter.

An electrical ground loop can be responsible for creating noise and interference in your communication radio's headset. Hence, ground loops are things we want to avoid in our homebuilts. They are commonly caused by the wiring methods we choose when hooking up the electronics behind our panel. They can be avoided by proper electrical design in a new aircraft as well as eliminated in existing ones.

This week's tip looks at understanding, identifying and rectifying ground loops in your experimental aircraft.

 Insulating washers will do the trick
Do all of your grounds tie in to the same location?

Weight & Balance 101 for Homebuilt Aircraft
Completing a homebuilt requires you to calculate and document the  weight & balance figures  for your aircraft.  F or many builders this task is confusing and complicated -- however,  we have a video to make this task simple and easy to understand.

This DVD is specifically designed to teach the experimental aircraft homebuilder who is not comfortable with weight & balance concepts how to perform the required weight & balance calculations for their aircraft.

There is more to W&B than just filling out your paperwork. Consider answering the following scenario depicted in the lower picture: If your fully loaded take-off weight is 1500 lbs and after calculations you need to shift your center of gravity forward by 1.5" to fly safely, how far forward should you move your 75 lbs of baggage to get the aircraft within limits to fly safe?

This is an example that is presented in this DVD. Making use of this knowledge is a lot more than a one time paperwork effort!
W&B terms defined and explained
Using W&B to modify CG for safe flight
Watch a previous Tip?
 Don't forget that past  Tip of the Week articles and videos are listed on the Archive Listing page on our website. You can check back there for future reference and review of these tips.You can also reach that page from a link on the top, right side of our home page. 

We have also released a  dual DVD set containing the first 35 Tips with updated comments and material for those who want to watch offline with the convenience of DVD chapter indexing.
HomebuiltHELP | PO Box 111 Brussels WI 54204 | email:

HomebuiltHelp's Engine installation videos make the daunting task of an engine installation a LOT easier! Watch someone else do it first! This is part of your engine evaluation process. Featuring:
Rotax, ULPower, Jabiru, Viking, Continenta l

Confirm that you like this.

Click the "Like" button.