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Scott, I am puzzled by the poor performance you have experienced with the AP in your RV8. I have flown numerous approaches in my RV8 including some in IMC with light turbulence, and have been very pleased with the performance. However, I have not flown in moderate turbulence, so I can't comment...

Kirk, The D100 should work fine, though you will need the HS34 expansion module to accept the ARINC I/O from your 430W. I installed a 430W in my RV8, along with a D10A, HS34, Dynon autopilot, and AP74. The combination works great in IFR. I installed the D10A with its primary function as an HSI...

Chad, The AP74 is a very useful component of the AP system. It allows you to engage/disengage the AP, and select HDG, TRK, NAV modes as well as ALT. Without the AP74, you would be constantly going into the menus of the EFIS to toggle these choices. The only component of the AP74 I don't use is...

Paul. Which version of the firmware are you using? -Alan

Dennis, Here are some pictures of the roll servo installation in my RV8. I believe it is the same as the RV6. There are no issues with the weight since 1. the servo weighs as much as about 1/3 a gallon of fuel (although it's at a greater moment arm). 2. The pitot tube on the opposite wing...

Scott, My RV8 flies very well with the following settings: pitch torque = 100%, pitch sensitivity = 20, roll torque = 100%. For roll sensitivity, start with 8, then increase in increments of 1 until the roll response starts to become a little twitchy. I currently have my roll sensitivity set at...

Scott, I don't know the specifics of your cable issue, but if you need a USB to serial (DB9) connector, Radio Shack makes one (Model: 26886 | Catalog #: 55008871) for $27.99. You can view/order it online at radioshack.com, or buy it in one of their stores. Thats what I did for my laptop...

Pete, I installed a GNS430W in my RV8 about a year ago, and that's what led me to Dynon. I had to find a space in my panel for a CDI for the 430. The D10A in HSI mode works perfectly. I simply replaced an old vacuum driven heading indicator with the D10A. It boots up to the HSI page. I installed...

The wing mount for the RV8 has been working very well for me (20+ hours). While it may not be as appealing from a theoretical point of view (equivalent to perhaps an extra half gallon of fuel in the right wing due to its location), there is no noticeable roll trim effect with the AP disengaged...

Re: D10A intermittent readings on HSI from Garmin Firmware V5.0 has fixed the problem with the jumpy CDI needle.

Re: D10A intermittent readings on HSI from Garmin Sorry for the confusion. I was referring to observations made in June on v4.0 firmware. I just wanted to clarify that the jitter I observed was not just full scale (during OBS adjustment), but small jumps from side to side of equal magnitude...

Re: D10A intermittent readings on HSI from Garmin This is exactly what I observed with my D10A/HS34/GNS430W. The interesting part of the video occurs about 2/3 of the way through it. The course deviation error is only 1 or two degrees, the OBS is not being turned, and yet the CDI is jumping...

Re: Problems with VOR dispay on HSI page using HS3 You may be right about the nav/antenna installation. I'm using a 4-way splitter (two VOR's, two GS's from a single NAV antenna). The other Nav radio/CDI (a Collins)works fine though. Maybe the older Collins Nav radio is responding a little...

Re: Problems with VOR dispay on HSI page using HS3 I have a 430W, D10A and HS34. Everything works well except for a minor annoyance when tracking a VOR. About 50% of the time the course deviation bar seems to jump +- 2 degrees (flips from side to side) when tracking inbound or outbound (and on...

Does the EFIS-D10A retain calibration settings (remote compass calibration, inclination, altitude etc.) when the software is upgraded from 3.0 to 4.0?