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Old 08-18-2014, 08:14 AM
prkaye prkaye is offline
Join Date: Jun 2006
Location: Ottawa, Ontario, Canada
Posts: 2,117
Default Dynon EFIS roll unstable

One thing I've noticed since installing my D-180 about 4 years ago is that the artificial horizon is very instable in roll. Compared against my steam turn and bank indicator, the D-180 bounces all over the place when the airplane is in any kind of turbulence, and sometimes takes a long time to recover. I would perhaps use the word "undamped" to describe the behaviour.
I haven't bothered to do anything about it because I'm a VFR guy, but this year I've started digging into a few things that have been bothering me and making improvements.
Is this typical behaviour of the D-180? Thoughts?
Flying since July 2010!
Ottawa, Canada
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Old 08-18-2014, 08:25 AM
N941WR's Avatar
N941WR N941WR is offline
Join Date: Jan 2005
Location: SC
Posts: 12,887

Call Dynon, that thing should be rock steady.
Bill R.
RV-9 (Yes, it's a dragon tail)
O-360 w/ dual P-mags
Build the plane you want, not the plane others want you to build!
SC86 - Easley, SC
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Old 08-18-2014, 09:20 AM
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Ironflight Ironflight is offline
VAF Moderator / Line Boy
Join Date: Jan 2005
Location: Dayton, NV
Posts: 12,536

Originally Posted by prkaye View Post
Is this typical behaviour of the D-180? Thoughts?
Very atypical in my experience - we had the D-180 in Louise's RV-6 for several years, and I never saw it have any roll instability. Like Bill says - call Dynon and see what they say about it.
Paul F. Dye
Editor at Large - KITPLANES Magazine
RV-8 - N188PD - "Valkyrie"
RV-6 (By Marriage) - N164MS - "Mikey"
RV-3B - N13PL - "Tsamsiyu"
A&P, EAA Tech Counselor/Flight Advisor
Dayton Valley Airpark (A34)
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