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King KLN89B GPS complete w/tray & connectors, KA92 Antenna and Mid-Continent MD41-534 vertical orientation annunciator/switching unit (14 volt). The KLN89B and KA92 have 8130s from Honeywell dated July and May 2000. The MD41-534 was purchased new in June 2000.
All components are in "as removed" condition, operational when removed.

Also included is the Mid-Continent Installation and Operating Instructions manual, the Bendix/King KLN89/89B Installation manual, the KLN89/89B Quick Reference card, and the KLN89/89B Pilots Guide.
Asking $1500 for everything (shipping not included). Contact Scott or Kim Huntington Hunterair@aol.com 805/937-2276.

What's your experience with the MD41? I've never come across one before. Does it primarily switch a CDI between GPS and NAV control? I have a KLN89B and wonder if I would find one of these units pretty useful with the KLN? Thanks!

Matt,
You'll need it to certify it for IFR use. Aside from annunciating which input the CDI is using (VOR or GPS), it also is used to suspend auto-sequencing during approches.

Hey - those annunciator panels are NOT CHEAP!!!!!


To have one included - that's a pretty good deal.

I'd jump on that in a heartbeat, except I have two KI-209's. From what I understand, I would need at KI-209A VOR head to get the glideslope and interface with the GPS. Am I correct? Anyone?

Yes, Ed, you are mostly correct. The OBS resolver in the 209 is not compatible with the GPS unit. The 209A has a resolver circuit that provides output to the GPS that is switched by the switching unit (MD-41). When in NAV mode, the OBS output is for the VOR, and in GPS mode, the OBS output goes to the KLN-89 for course guidance output that gets indicated on the indicator.

You wouldn't be able to use the glideslope needles for anything in the GPS mode unless the GPS unit is WAAS capable and certified for LPV approaches. (Lnav and Vnav)

That's a great price on an older, but very functional approach certified GPS system. To get everything...excellent.

Sorry, we're a bit slow responding.

I flew this system 5 days a week for three years in one of the most hostile IFR environments - the LAX Class B - from CCB to HHR and back. While the HHR approach was a localizer, having the GPS map display and DME type information made approaches much safer and less stressful. One 'June Gloom" period resulted in 21 consecutive days of IFR approaches into HHR. CCB has a GSP approach overlaid on the VOR approach and the KLN-89B made getting home much easier and far more accurate than the VOR method. The only reason we removed the KLN-89B was the total restoration of our C150B and the addition of color displays to the panel.

The other posts are correct. The KLN-89B (and all IFR approved GPS units) needs feedback from the CDI to function in the OBS approach modes. The KI-209A has the needed circuits and can switch from GPS to VOR indication with an added switch.
IFR approval needs annunciation of Armed, Active and message which the MD-41 provides. It's a fairly simple unit with numerous input / output pins to switch VOR / GPS functions and provide the necessary status indications.

The package includes a new KLN-89B installation tray, pins and a wiring harness already built up for the MD-41 interface. A CDI connector and interface to the altitude encoder is needed.

It's not quite a "turn-key" installation, but very close.