Skyview transponder cert. IFR vs VFR

jgills240

New Member
Joined
Aug 5, 2011
Messages
10
Location
Mojave, CA
Hello,

I'm getting my pitot/static & transponder cert for the second time on my skyview.  The first time, the avionics shop didn't ask any questions regarding IFR or VFR cert type, but the guy i'm using today claims there needs to be a secondary altitude/encoder display to qualify for IFR test certificates.  It's clear he isn't 100% sure, and wants to call "his FAA guy" to check, but I can't find anything in the regs that specify the altitude source nor display characteristics of the transponder system, just the error tolerance per altitude reported.
I'm sure y'all have studied this far more than I, if you don't mind weighing in.

Thanks!
Justin
 

swatson999

Well-Known Member
Joined
Oct 6, 2010
Messages
1,689
Never heard of a requirement for a "secondary altitude/encoder display", but what do I know? In any cased, my static/transponder guy had zero issues my Skyview + SV GPS + SV XPDR for IFR. Said he's never had any issues with any of them that he's inspected, either...they all work "awesome", as he put it.

No requirement for pitot check, btw...but he did it anyway and it was very accurate (and dead nuts on at Vne...so I guess I have to fly that fast all the time :) ).
 

dynonsupport

Dynon Technical Support
Staff member
Joined
Mar 23, 2005
Messages
13,226
Justin,
There is no reg that says your encoder must be TSO'd or otherwise "certified" nor that it be independent from your altimeter. In fact, you get credit for it being hooked to the pilot's altimeter. IFR or VFR doesn't matter either.

Not all shops know or get this. Sometimes it's just easier to find a different one.
 

rlmarshall

New Member
Joined
Nov 11, 2009
Messages
66
Location
arroyo grande, CA
I just had my Skyview altimeter certified per FAR 91.411 without any problems, this from a shop which admittedly didn't have much experience with experimentals and none with Dynon. I printed out the "how-to" page for them. Anyway, other than having to take a lot of time with all the ON/OFF business--no complaints. PS--they thought I had a small pitot line leak at the Pitot Tube--they didn't know about the drain hole.
Transponder also had no issues with getting certified per FAR 91.413.
 

rfazio1951

Member
Joined
Feb 11, 2010
Messages
361
I find it so amazing that every guy I go to for my transponder check does things so different. I just had my system checked again. Did the pitot static system also this time. This guy wanted to check the pitot static weather or not I was doing a IFR check. He also checked the altitude every thousand feet to 20,000. Wrote up a whole chart on each thousand feet and how much off the dynon was. I had another guy tell me he couldn't do the IFR check because I didn't have a heated pitot? The last guy I had, did just the transponder check only, stuck a receiver antenna under the plane for one minute and was done. No check of the the static at all. I agree with dynon, if you don't like what he wants to do, go elsewhere.
 
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