New Radio

Shop time is $100/hr. Takes me about five hours to install a Garmin - a little bit longer if I have to include an intercom. Does that help?

Help me understand intercoms. There is a toggle switch above my radio stack that turns the intercom on and off. Is the intercom a separate device? Where is it ... behind the switch?

As I understand it, the GTR 225 has a built in intercom. So if I put the GTR 225 in, does the other intercom come out?
 
Yes. I cannot speak to the 225, but the 200 internal intercom is the absolute best I have ever used.

You need power, ground, antenna, and shielded twisted pairs for two headsets and two mikes.
Two grounding wires for PTT finish the installation. Not rocket science. No need for ICS PTT wires, although I did install them (not trusting the intercom). You can trust this intercom - we run open mike in the Stearman!
 
Thanks. How difficult/expensive do you think the physical installation of the radio in the old Collins space will be?

Gulf Coast Avionics has their main showroom and HQ about 10 miles away from my home airfield. They have a good advertised price for the GTR 225. Will I get hammered in labor cost if I have them install?

My other alternative would be to order from Aircraft Spruce, and get the A&P I bought the plane from to do the work.
 
If you are on a budget the only way to own an aircraft is to learn how to do it yourself. Around here you are lucky to get an annual inspection from a shop under five grand.

Installing a tray in the Dec is easy, except for that diagonal tube that starts at the doorframe. I have a stack that includes a KN53, a Narco, and a KX transponder. Took a day to anchor it - front and back. Easy work, but in a tight area.

A day in a shop is a grand.
 
I got a quote from Gulf Coast. 16 hours at $75 in labor for $1200 total to install the radio. Another 2 hours to install the USB charger.

There is another shop on the same airfield that has a good reputation. Emailed them tonight for a quote.

I bought it from an A&P. I'll ask him how much he would charge with me helping. I'd like to do that and learn. However, he's also a corporate Lear pilot and is pretty busy, so he can be hard to pin down. He's also on a Class D airfield, so I'd have to borrow a handheld radio or something.
 
Have you ever soldered? The big deal is stripping the wire and crimping the pins. They now have sleeves that allow easy connection of shields, although I do it the old way with a small soldering iron.

The crimping tools are expensive - I lent mine out and it hasn't come back.
 
If you are on a budget the only way to own an aircraft is to learn how to do it yourself. Around here you are lucky to get an annual inspection from a shop under five grand.

I agree. However it can be harder to do in some places than in others and you'll need to shop around to find the right mechanic.

In my experience there are a couple different approaches to annual inspections:

1) The "make it as perfect as possible" approach; and
2) The "make sure it is airworthy and fix the required/flight critical items" approach.

#1 will cost $4K-5K per year. #2 will cost about $1000-$1500 on the same aircraft, but a good mechanic can still produce a safe to fly aircraft with the less expensive annual.

To be fair the FAA has been pushing number 1 in the recent past, no doubt as part of the growing focus on bureaucratic butt covering rather than a more field focused approach. However that creates a massive problem when it costs a Champ or Citabria owner $4K per year ($333 per month and $40 pre flight hour if the owner flies it 100 hours per year), just to keep the aircraft in service. It ultimately prices that whole segment of general aviation right out of aviation.

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There are also mechanics who support owner assisted/supervised maintenance and other mechanics who complain and say it's really hard to work with owners and that they don't support it at all. I suspect to some extent it depends on how well the mechanic in question can mentor, teach and supervise. When I hear an AP/IA that doesn't support owner assisted maintenance and won't work with them to complete an annual inspection, I question how competent that IA really is at not just inspecting and signing off on work, but also at mentoring A&Ps to advance their skills.

Admittedly some owners may means well but still do something not quite right. For example, taking out all the spark plugs, which then requires the the AP/IA to put the lower plugs back in to do a bleed down test on the cylinders. Is that more work for the IA/AP? Not really, and if the AP/IA communicated what needed to happen in a more thorough manner the owner probably would not have done it, and in any event will know better next year.

However, if the owner has reasonable ability with tools, owns the basic tools and can take direction and follow instructions, owner assisted maintenance works just fine.

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There are also good and not so good AP/IAs, and I think owner assisted maintenance can lead to a better overall annual.

When I bought my 7KCAB it came with a fresh annual and that annual was on the very low end of #2. In fact, I'll argue it was substandard given the items I found that were concerning enough to bring in my own mechanic to look at it.

For example, I noted the belt on the generator was not aligned with the pulley behind the prop, was showing abnormal wear patterns on the belt, and had eaten into the front baffle about 1/4". Once the lower cowl was removed I discovered the safety wire was missing from the bolt securing the generator to the adjustment slide, was broken on the bolt at the top of the slide, and one of the nuts was totally missing from the front attachment point on the generator. I strongly suspect the AP/IA that did the annual never removed the lower cowl. Even without removing the lower cowl, I'm amazed he didn't spot the generator issue.

The end result of the consult with my mechanic was a punch list of small items to correct (proper safety wiring of the gascolator, tape under the ties on the engine mount (and I replaced the zip ties with tie string), adding grommets and fire sealing the through holes in the firewall, stop drilling a few cracks in the engine baffles, etc.

Had I just accepted the aircraft after it came out of annual, it would have almost certainly suffered a generator failure during the year due to either belt or bearing failure, the cracks in the baffle would have progressed, the un-grommeted and unsealed holes in the firewall would have caused wear on wires and fuel lines as well as posed a fire risk, and the un safety wired gascolator could have potentially lost it's bowl in a hard landing or on a rough strip and caused engine failure, stranding the aircraft at best.

The big benefit for me is not just saving a lot of money on labor costs but also knowing my aircraft much better than I ever knew any of the aircraft I rented.
 
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Don't forget - liability is a big part of why shops gravitate to option 1.

IA liability insurance starts around four grand a year. That means your first four annuals at a grand each are zero money in the bank - worse, you have to pay FICA, unless you are set up as a business.

I simply could not afford to keep flying if I had to pay for maintenance. Auto maintenance is not far behind. I now officially hate working on cars.
 
Both shops quoted me 16 hours of labor to remove the Collins and install the GTR 225. That must be in some kind of big reference book.
 
One of the shops expects a cancellation and might be able to get me in tomorrow or Monday. If that happens, I'm going to bite the bullet and go for it. I would rather drop $5K to get everything the way I want it now and go fly, rather than dawdle around for 3 months trying to do it on the cheap.

Items I'm going to have installed:
  • New Garmin GTR 225 radio
  • Stratus USB dual charging port
  • Whelan LED wingtip lights
  • RCA 2600-3 electronic AI
I like the RC Kelly AI because it preserves the round gauge look, and it has a mechanical slip indicator instead of a digital ball. I found one on eBay for $1300 from Wentworth. Several people recommended I go with the Garmin G5, but that would have cost more to buy and install. I don't like the square face and I don't see the benefit of digital airspeed and altitude tapes when I've got big ass analog gauges giving me the same data.

My only reservation is whether the ball is too small for my aging eyes. I guess we'll find out.

RCA2600-3 PS front.png
 
Aircraft has been in the avionics shop for 9 days now. I couldn't resist dropping by to see how it was going.

Good news: there was a guy working on it when I walked in. Last week they did not touch it.

Bad news: so far, all they have done is pull stuff out.

The guy was surprised by the built in intercom. Apparently it was some sort of home brew consisting of an attachment to the back of the old radio, two relays zip tied to the panel support, and a rats nest of wire. That's all been ripped out now.

I suspect it's going to be at least a week before I fly again.

I did get a picture of the back of the switch panel.
 

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Big Ed... Do you have a pic of your entire panel you can post? Getting ready to upgrade my 7GCBC panel with the same avionics you did. It's been a few months since your install, everything working great?
 
Sure, here you go. Very happy with everything, though I would probably go with the Uavionix AV-30 if I did it again.

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Very nice, thank you! Can't wait to get mine done. It'll be towards the end of the year and I'm going to update the panel too with a new one from ACA. I'll post before/after shots when the time gets closer. AV-30 looks like a good choice to go with as well - been reading great things about it.
 
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