Garmin 175/GI 106B CDI Install

Hello All,

Looking to update the panel in my '68 Cardinal to pursue my IR and beyond. Aircraft Spruce has a sale on the Garmin 175 (waas) /GI 106B CDI (vor, loc, GPS, glideslope). From my research, this is the most affordable/practical package for my mission. Have a KX-155 installed already, paired with a VOR.

Would love your thoughts. From my understanding, I could shoot any type of approach using the 175 and CDI? Please correct me if I'm mistaken. Any estimates on installation?

Appreciate this community. Happy Flying!

Cheers,

Parker

 

To your question, I agree with your strategy.
I installed the GNC-355 (for the comm to replace 1840's technology) and am very happy with its capability GPS-wise. The comm OTOH came with a few issues that (hopefully) have been dealt with after a warranty replacement. Still though, I am using it for IR training and find it quite capable.
I'm even learning about what I'll want when I upgrade to something less 'training-oriented.'

 

Your 175 would only give you Gps/RNAV approaches. If your KX155 has glideslope, then that would cover the missing approaches.

 

Well, you couldn't shoot an NDB approach without an ADF. And you'd have to shoot a VOR/LOC/LDA/SDF approach with the KX-155. And the KX-155 would need a glide slope receiver in order to shoot an ILS approach.

BTW, how much extra would it be to go with a GI275 instead of a GI106? The GI275 would add moving map, traffic and weather display capability.

 

The new generation Garmin products have a product that is right. Which one to choose is determined by whatv3lse is in the panel. If your panel already has good coms and a Nav, the 175 is a great choice. If it also needs a com, then I think it’s the 355 that would fill the gap and if it also needs ADS-B, then it’s the 375.

 

great combo, i installed a garmin 175 in mine with a used garmin cdi for dedicated gps cdi. I already had a cdi for ils and a vor. You can't go wrong with a 175 imo, i'm very happy with mine, the interface is super user friendly for ifr or vfr flying. the only thing i wished was i had got the one with a comm, as my older one bit the dust 6 months after, then picked up a garmin 225

 

Don't feel too bad. The price difference between a GPS175 and a GNC355 is about the same as a GTR225. Plus, the GPS175 knob is a little bit more useful than a GNC355 knob since it doesn't have to be responsible for changing frequencies. And you gain a couple of data fields on the display since it doesn't have to show frequencies.

 

good point!

 

It's not my money - but look at the 375 vs. 175.

Installation should be similar.