Monthly Archives: August 2012

Battery Mount

Like many RV-8 builders, I have decided to mount my battery in the forward baggage space well. To minimize the weight and balance impact of moving it forward, I opted to use the Odyssey PC-680 battery, which weighs in at less than 15 lbs. Mounting the battery in the baggage well begs the question of how to secure it and after considering using the standard Vans battery mount, which is too large, I decided to look for a smaller and more tailored solution. Ultimately, I found the HK-PC-680 battery mount at Jegs and it seemed like the perfect solution. Tailored to the size of the PC-680 and made of aluminum, all it needed was a way to mount it in the baggage well.



I made two “Z” channels out of aluminum angle stock and flush riveted them to the mount, and then painted the whole thing with rattle can Rustoleum Truck Bed Coating. The mount will be secured to the baggage well floor using four CherryMax rivets.


Mounting ADAHRS Sensors

The Dynon SkyView system is all electronic and relies on solid-state accelerometers and other sensors to determine its position and movement in space. In the SkyView system, the Air Data/Attitude/Heading Reference System (ADAHRS) sensor provides this information. The SkyView system is capable of working with a primary and a secondary sensor, so that’s how I configured my installation.


I constructed an all-aluminum support shelf just behind the baggage hold. Because of the magnetometers contained in these boxes, you cannot have any ferrous metals nearby, so the sensors were mounted with stainless steel screws and nuts. The static, pitot and angle of attack plumbing is shared between the two sensors as seen in the photo and both units are connected to the SkyView system via a SkyView network hub mounted between them. Both units have their own air temperature probes, which will be mounted under each wing. No static plumbing to run forward and all information is shared over the SkyView network. Isn’t technology great?