Dugaru
Well Known Member
So my old GRT AHRS has developed the leans. After some attempted fixes based on advice from GRT, it looks like it's flown west for good. I've decided to upgrade it to their new Adaptive AHRS. I'm also going to replace my trusty but aging Horizon WS with their Horizon EX.
So I need to send my old AHRS in to them for the upgrade. However, it looks like the aircraft was sort of built around the AHRS.
Here's a photo I stole from the original builder's website, looking toward the pilot seat from the front of the airplane. There's now painted fuselage skin riveted over the top of this area, and of course the "easily" accessed avionics are largely behind this, closer to the pilot:
https://www.icloud.com/photos/#0OUXlCZSijnp074nC2H8MDaQA
From what I can tell in the archives, this was not an uncommon place to mount the AHRS, although some people apparently installed an access panel in the fuselage skin above it.
It looks like maybe I can do some serious panel spelunking and remove the tray that the AHRS sits on, allowing it to drop down for access. But before embarking on that adventure, I thought I would ping the crowd here to see if anyone with a similar setup can offer any tips for access.
I'm tempted to just leave it in there as a time capsule and put the new Adaptive AHRS somewhere else (it has much more lenient mounting requirements), but the $ difference between a new AHRS and an upgrade is significant.
Thanks for any suggestions!
So I need to send my old AHRS in to them for the upgrade. However, it looks like the aircraft was sort of built around the AHRS.
Here's a photo I stole from the original builder's website, looking toward the pilot seat from the front of the airplane. There's now painted fuselage skin riveted over the top of this area, and of course the "easily" accessed avionics are largely behind this, closer to the pilot:
https://www.icloud.com/photos/#0OUXlCZSijnp074nC2H8MDaQA
From what I can tell in the archives, this was not an uncommon place to mount the AHRS, although some people apparently installed an access panel in the fuselage skin above it.
It looks like maybe I can do some serious panel spelunking and remove the tray that the AHRS sits on, allowing it to drop down for access. But before embarking on that adventure, I thought I would ping the crowd here to see if anyone with a similar setup can offer any tips for access.
I'm tempted to just leave it in there as a time capsule and put the new Adaptive AHRS somewhere else (it has much more lenient mounting requirements), but the $ difference between a new AHRS and an upgrade is significant.
Thanks for any suggestions!