Harness and Connector Wiring - RV-7A | EP4.6
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- เผยแพร่เมื่อ 11 ธ.ค. 2024
- Back to the harness!
It's time to get some of the connectors pinned for all the Garmin avionics. The baseline to getting the harness in the plane is about 15 connectors that need to be wired, pinned out, grounded, etc. While additional connectors will be required to carry signals for items like engine monitoring, that'll wait until I have an engine...
This process is fun, and relatively straightforward if you're starting with a good wiring diagram--either one you've worked out all the kinks on or one that an avionics shop has done the hard thinking for you.
While I haven't referenced my diagram much, it has about two months of on-and-off research and work into it. I think that pays off as I sail through the connectors with limited amount of head scratching. Still, "sailing through it" consists of several days of crimping and connecting.
Here I also unpack a few additional items needed for power system, take a look at my latest "temporary" panel, and of course, pay tribute to all the dads out there for Fathers Day.
For those wondering (and miraculously reading this), I'd estimate I'm about one-to-two months out from flipping the switch on the full avionics package. 6 weeks. Let's see how this ages.
Daily Beetle by Kevin MacLeod is licensed under a Creative Commons Attribution 4.0 license. creativecommon...
Texas Techno by Audionautix is licensed under a Creative Commons Attribution 4.0 license. creativecommon...
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I'm Ryan, an aviation enthusiast who has decided to build his own aircraft and publish the entire process online for others to watch along. If you have ever want to build an airplane, this is a great glimpse at what it takes.
The airplane is a two-person experimental kit built aluminum plane capable of over 200 miles per hour, and a range of over 700 miles. The kit is manufactured by Van's Aircraft one of the most prolific kit aircraft providers in the world. The airplane is aerobatic, functional, and fun. The build is challenging, time consuming, fun and rewarding.
Check out my instagram @ryanflyspdx
Also check out my website, ryanflys.com, I'll be updating this more regularly. You'll catch daily updates, quick access to videos, and more information about the project.
Please note, this channel is for entertainment only and should not be used as build advice/consultation. I am an amateur builder sharing my experience.
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Fantastic job Ryan. I am sure your father is very proud of you as you work your way through this project. Your electrical work looks excellent.. It is amazing how much time can be put into areas of work that you would never know to take so long... Continue to enjoy all your videos... Thanks for sharing.
Thank you!!
And I’m continually amazed at the details and then the amount of work to get the details bolted to the fricken’ plane!
But, with each one comes a little bit of knowledge and a lot of satisfaction.
I’m glad that you are not fast forwarding your project! I am building an RV-8 getting close.
No skippin ahead on this one. If I’m in it for the long haul, so are y’all!!
Bread ties are an AWESOME idea.
I think I picked that up from another builder-full disclosure. I think I’ve gone through at least a hundred, so stock up!
@@RyanFlysPDX I am getting close to the same place you are in a -14 build. I was going to use cheap cable ties but this is a much better idea.
Love watching your videos Ryan! Looking forward to the next!
Hey, thank you!!
More coming. The progress keeps... progressing.
@@RyanFlysPDX As the saying goes.. 90% done, 90% to go!
Fantastic work on the video and wiring! Keep on keeping on! 😃👍🏻
Thank you so much!
I love watching this kind of work . Not an airplane , but currently rewiring a 1970 Chevy Nova for a guy . All that wiring you are doing now looks like a combination of 12 volt automotive and low voltage com line stuff like I used to do when I was a contractor for Bell Atlantic . Yep ,, just told my age there .
The RS 232 cables--the three strand--definitely remind me of telecom wires! And the rest certainly parallels auto wiring. I even have a bit of marine in there to be seen on a later episode. More of an epic wiring system than I anticipated when first taking this project on!
Absolutely Amazing! Turning that table of wiring Spaghetti into RV wiring harness!
Happy Landings!😊
Hopefully a working wiring harness! It’s been really rewarding. Excited to see it in the plane!
Thanks for the detail on that one Ryan, just starting the harness for a RV14a, now I don't have to take the class
Exciting! You have a little more room to work behind that panel. I'm jealous.
I feel like the class was such a wonderful shove into the world of avionics. I'd do it again in a second. But: it doesn't cover everything, and I've still had to figure out LOADS on my own. No reason I couldn't have done that for the whole thing, but I believe I'd find a lot more frustrating moments than I have through the build with the class under my belt.
Keep up the great work! 👏👏
Thank you!!
Nice!
Pretty sweet!
Ryan thanks for your videos, any updates on the harness information, when will be available for us.
Thanks again. 👍
It's going to be a while before it's posted. I have to get quite a few things documented, and then get the panel through powerup, configuration, and testing.
I'm not comfortable posting until I've troubleshooted it--even if if just for reference purposes.
@@RyanFlysPDX look for the avionics wiring in the document section.
Another great one, Ryan! So glad you're going into detail on the avionics install as I plan to do mine as well when the time comes. Question: Regarding the table with the lines drawn representing each branch of the wiring harness, where did you get the lengths? How did you know how to lay it out, how many forks there would be, and how long each line should be? Does Stein provide that? If so, is that something you have to pay for? Thanks again for the incredible video editing. I know it must be very time consuming but it's much appreciated!
Stein, (and just about any other avionics company) can provide as much or as little guidance as you're willing to pay for. They know the panel areas of these planes, and can generate layouts, with lengths, and guidance for mounting LRUs. They'll propose layouts for your screens and radios. They'll provide a detailed wire schematic, and a harness diagram with dimensions. They'll provide your CANBUS layout with node length and order. It all comes at a relatively reasonable cost. (I've seen diagrams quoted mostly between $1,500-$2,500.)
They'll build the harness, which with all supplies can run $7,500-$10,000+, should you desire.
For me, it wasn't about the costs (or not all about the costs) but the desire to get my hands dirty and do it myself. My lengths were measured, tested with the semi-successful ribbon party, and then verified recently by installing the harness temporarily.
The board is something that you'll need to do to assemble a harness. My diagram looked different when working with the lengths I measured and sitting down at the computer. It wasn't until I did the ribbon exercise that I saw these runs coalesce in opportune areas of the subpanel. This required adjustments to me lengths, but then the harness started to take on a more familiar look--one I had seen elsewhere when researching these things. And now I knew why. You could probably derive the shape of the harness by simply running twine the entire length of your CANBUS and then assume that all other wire runs will follow that--if you didn't want to spend $30 and 8 hours yelling at colored ribbon.
If you don't have a strong desire to figure this stuff out for yourself, and don't think that sitting in front of a computer studying pinouts and trying to adapt it to your plane sounds like fun, I highly recommend taking up your chosen avionics provider on a diagram. Not on video here is countless nights spent planning this thing out. Hours and hours. But for me, it was fun. 🙂
@@RyanFlysPDX you and I seem to be cut from the same cloth. I'm more interested in the educational benefits of doing the harness myself than the cost per se. As an aside, It'll be interesting to see how much you actually spend on wiring and how that compares with buying a pre-built wiring harness from Stein.
I received my quote from Stein and Midwest a few days ago. Now I need to go through it line-by-line and make sure I understand it. Also included in the price was designing/building the instrument panel. I also would like to do this myself but I'm even less knowledgeable in this area. Thankfully you're covering that in your videos!
Much appreciated Ryan!!
@BlueSkiesAhead I’ll be happy to share costs when I’m through, as I too am curious what the impact of a near daily box from Stein is running.
@@RyanFlysPDX that would be awesome!
First! I have some logistics questions for you: Seems like you’re working in a 1-car garage? Do you know dimensions of your workshop? Any major issues with that space? Also how long is the 7A in that current form? (No tail feathers or engine)? I’m very close to pulling the trigger on a kit but I’m working with a 20’x10’ one car garage and I can’t figure how much plane can actually be built in there.
It's technically a 2-car garage, but tandem. (Think RV-8 for garages.) It's about 40' long and 11' wide. There are pluses to the length, I think, over a standard 2-car garage, but definitely some drawbacks too. It's likely more spacious than the videos portray.
With about half the space, you could certainly get through your tail kit, and maybe the wings. You'd need offsite storage of items not it use. Currently, the fuselage (with engine mount and front wheel) is just shy of 200".
I wouldn't say space is a major issue, for me, but I certainly wouldn't turn down ten extra feet in any direction. I wouldn't want to go any smaller, and I've certainly had to do some things "the hard way" because a lack of space has prevented an easier solution.
I’m working in a 19.5’ wide 13.5’deep 2 car. I still have one older (much smaller by today’s standards) jeep in the garage and I have had plenty of room for the 2 work tables to complete the tail section.
I’m about ready to build the wing supports once I finish up edge cleaning the 42,000 ribs and it’s going to be tight. I know once the wings are done I will have to get a storage unit (the wife has already told me I can’t keep them in the guest room 🫤).
If I measured correctly I “think” I can get to where Ryan is even with the tail on by taking the jeep out and having the fuselage diagonally in the space.
Question for Ryan…what made you go with Garmin over Dynon or GRT? I’m leaning a little more towards dynon as it’s just a smidge cheaper and can come with the pre-made harnesses.
Why Garmin? A few reasons. First, I love compatible systems, or less specifically: anything that matches. Going with Dynon would mean still having a Garmin IFR navigator, or perhaps going with the Avidyne. And while those systems aren't "incompatible" per se, with Garmin I've got two boxes that were born speaking the same language and designed to talk. I also have one place to call when I inevitably run into some issues with installation or setup. (And Garmin support has been great so far!)
I also found the UX/UI to be a bit better on the G3X system. Felt a little newer, more polished, and intuitive. Just me.
Now, some people building near me at similar progress points have picked Dynon/Avidyne/AFS/etc. and showed that the compatibility, ease of setup, and UX on those machines definitely rivals the Garmin boxes. All very capable machines. And yes, you can save a bit (though not as much as I was expecting, when I had a comparable system quoted out).
@@RyanFlysPDX Practical question, does building your own harness effect the warranty provided by Garmin on the avionics?
@DazzInHKG because the warranty is covering defects from materials or workmanship of the device and not the install, creating your own harness won’t affect the ability to claim against those criteria.
However, if you fry your box hooking black to red and red to black, that’s on you, professional harness or homebrew. (Most boxes are guarded against reverse polarity, I believe, but you get the point.)