Avionics stack - my early dreams
In a number of PA-28's and in a DA-40 Tdi as well, I got somewhat proficient in using a Garmin GNS-430 during VFR day and night operations.
to/from German airports/airfields sporting a CTR, every now and then ATC wants you to fly SID's and/or STAR's. In cases like this, an instrument like a GNS-430 really reduces cockpit workload. Needless to mention that I really really liked the idea of installing one in my RJ.03 IBIS.
Funny how requirements evolve over time:
On the one hand, I didn't want to commit cash to the tune of something like a GNS 430 early on in the project, thinking that as my project progresses, electronics will become more economical and more powerfull as well.
On the other hand, I needed to plan the panel, wiring & wire routing, etc. to be able to continue with the fuselage. I didn't like the idea of having to back track in the future at a moment in time where the fuselage is closed and modifying things becomes awkward.
So, after putting my thinking cap on and after inviting a glass of very nice Gragganmore in the supporting act, I modified my wishlist, dropped the GNS unit and started from scratch.
What I ended up with was the decision to use older equippement that is currently being phased out by those that upgrade to the last cry in avionics. Also I wanted some sort of redundancy, meaning that I wanted at least two methods for electronic navigation.
So I started to hunt for used navigation equipment. The following pictures show what I managed to acquire over the course of many months:
King KA92 GPS Antenna
- Airpath C2400 L4P compass (TSO'd). For this or similir devices, I prepared a compass deviation card that you can download and print yourself...
- King KI-204 VOR/ILS indicator (TSO'd)
- King KMA-24 audio panel / marker beacon receiver (TSO'd)
- King KN-53 VOR/ILS receiver (TSO'd)
Of course the Airpath compass shouldn't really be called 'avionics', but since it's used for navigation as well, I decided to leave it in the picture above.
For those of you wondering what "TSO" means: this is an acronym for Technical Standards Order, which - together with a number issued by the FAA - constitues an official certification for aviation use. Of course, the European EASA issues similar equipment certifications, issueing what they call JTSO numbers.
Notably missing in the picture above are a VHF transceiver (with 8.33KHz channel spacing would be nice - perhaps a King KY-196B?) and transponder (one that supports Mode-S - and no, please not a King KT70, as this unit doesn't support all the modes required in Europe).
I'm still looking for these, so if you've got something to sell....
©2004-2012 IBIS RJ.03 "The French Canard" homebuilt aircraft project - Navigation and Communication
All rights reserved.