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Search: Posts Made By: akschu
Forum: Fiberglass 05-24-2022, 05:04 PM
Replies: 2
Views: 391
Posted By akschu
Trying to figure out how to make parts from 3D printed mold.

Hello All,

I need to make a blister for a servo mount (not an rv) and I was able to completely design the blister in fusion 360 and print it for test fitting.

Now I want to make a fiberglass part...
Forum: Glass Cockpit 04-26-2022, 10:48 PM
Replies: 470
Views: 182,924
Posted By akschu
Heh, thatís a lot of magic. I donít care about...

Heh, thatís a lot of magic. I donít care about initial setup, I just want to track per tank, and I really donít want an extra switch, just give me left and right fuel qty and allow me to tap on them...
Forum: Glass Cockpit 04-25-2022, 07:38 AM
Replies: 470
Views: 182,924
Posted By akschu
Agreed, this would be pretty handy

Agreed, this would be pretty handy
Forum: Glass Cockpit 04-25-2022, 07:25 AM
Replies: 470
Views: 182,924
Posted By akschu
Agreed, this would be pretty handy

Agreed, this would be pretty handy
Forum: RV General Discussion/News 04-19-2022, 11:25 PM
Replies: 11
Views: 1,007
Posted By akschu
https://www.rugged-circuits.com/microcontroller-bo...

https://www.rugged-circuits.com/microcontroller-boards/ruggeduino-smalls-tcrmx
Forum: RV General Discussion/News 03-28-2022, 12:14 PM
Replies: 76
Views: 7,485
Posted By akschu
My cessna 170 is $1300 a year to insure. That's...

My cessna 170 is $1300 a year to insure. That's pretty cheap given how it drives my wife wild that I have a 73 year old tailwheel.
Forum: RV General Discussion/News 03-05-2022, 10:48 PM
Replies: 9
Views: 939
Posted By akschu
Think of the inreach as a text only sat phone...

Think of the inreach as a text only sat phone with a gps and a button that texts search and rescue. It works anywhere and you donít need to try and talk through a poor connection. You enter your...
Forum: Electrical Systems 02-21-2022, 10:35 PM
Replies: 24
Views: 1,973
Posted By akschu
My panel drawing has keyed holes for switches and...

My panel drawing has keyed holes for switches and breakers. It was laser cut at sencutsend.com.
Forum: Electrical Systems 01-14-2022, 03:58 PM
Replies: 48
Views: 6,720
Posted By akschu
Walt, Which crimp terminals do you use? I'm...

Walt,

Which crimp terminals do you use? I'm certain they aren't all created equal.

schu
Forum: RV General Discussion/News 01-06-2022, 01:09 PM
Replies: 26
Views: 3,212
Posted By akschu
Don't they rent tailwheel airplanes out of Twin...

Don't they rent tailwheel airplanes out of Twin Oaks?
Forum: RV General Discussion/News 01-06-2022, 01:08 PM
Replies: 26
Views: 3,212
Posted By akschu
Why would that make you laugh? Learning in a TW...

Why would that make you laugh? Learning in a TW absolutely teaches you to fly coordinated, completely understand what the wind is doing, how to have a stable approach and not to screw with crappy...
Forum: ADS-B 12-22-2021, 10:24 AM
Replies: 15
Views: 2,643
Posted By akschu
Since the GDL-50r is wired to the G3X over serial...

Since the GDL-50r is wired to the G3X over serial and in connext format (same as what goes to the ipad over bluetooth) can the g3x use that source of attitude in a pinch? I know I can use it in the...
Forum: ADS-B 12-21-2021, 11:42 PM
Replies: 15
Views: 2,643
Posted By akschu
Remember that there are two different adsb out...

Remember that there are two different adsb out solutions: 1090es and 978uat. The 1090 stuff integrates the ads-b out and transponder while the 978 solution is another box that works in addition to...
Forum: Electronic Ignition Systems 12-20-2021, 01:35 PM
Replies: 2
Views: 920
Posted By akschu
Thoughts on the SDS CPI2

Just a quick note to anyone on the fence:

After spending entirely too much time trying to decide which ignition system to run I finally decided on the CPI2 for the following reasons:

Electronics...
Forum: RV General Discussion/News 12-16-2021, 02:56 PM
Replies: 64
Views: 9,785
Posted By akschu
Interesting all of comments regarding when (or...

Interesting all of comments regarding when (or when not) to use the brakes.

Seems to me that you need to do whatever works to either keep the mass behind you, or slow the mass enough to where it's...
Forum: RV General Discussion/News 12-06-2021, 05:04 PM
Replies: 16
Views: 2,036
Posted By akschu
That almost certainly means you didn't jumper the...

That almost certainly means you didn't jumper the baud rate correctly or you are sending a GPS format it doesn't understand.

The safefly gps outputs the following by default:

Serial Port 1 Out 4800...
Forum: Electrical Systems 11-29-2021, 11:38 PM
Replies: 17
Views: 2,897
Posted By akschu
Iím using diagrams.net. Itís specially for...

Iím using diagrams.net. Itís specially for drawings so itís less complex than cad, and if you move stuff around the wire lines stay connected.
Forum: ADS-B 11-22-2021, 06:56 PM
Replies: 4
Views: 1,635
Posted By akschu
IF you look at the GDL-82 install manual on page...

IF you look at the GDL-82 install manual on page 2-5:

https://static.garmin.com/pumac/190-01810-00_06.pdf

You will see that an IFR navigator can provide the GDL-82 GPS position, and in fact, you...
Forum: Electrical Systems 11-01-2021, 12:50 PM
Replies: 31
Views: 5,002
Posted By akschu
I got the square switch mount version of the Blue...

I got the square switch mount version of the Blue Sea systems USB charger, but didn't like how it stuck out on my panel. I ended up making a rectangle donut that the charger snaps into that I mount...
Forum: Electrical Systems 10-21-2021, 08:34 AM
Replies: 22
Views: 4,180
Posted By akschu
Remember that SDS will give you the advance and...

Remember that SDS will give you the advance and let you program it yourself as well as give you a LOP button.

EFII is a black box. It's not entirely clear what they are doing.

That may or may not...
Forum: Electrical Systems 10-21-2021, 06:04 AM
Replies: 22
Views: 4,180
Posted By akschu
I'm not really a fan of the EFII Bus manager...

I'm not really a fan of the EFII Bus manager because it routes your main (and essential) bus through standard through hole relays instead of using a firewall mount continuous duty contactor. To...
Forum: Electrical Systems 10-08-2021, 01:35 PM
Replies: 28
Views: 4,954
Posted By akschu
Part of my design decisions are to provide very...

Part of my design decisions are to provide very reliable power for key systems, but also provide startup power to engine monitoring, limit the number of switches and decisions the pilot must make,...
Forum: Electrical Systems 10-08-2021, 01:18 PM
Replies: 28
Views: 4,954
Posted By akschu
I looked at a lot of drawings and ways of doing...

I looked at a lot of drawings and ways of doing this, I think you can break this down into 3 fundamentally different solutions:

1. Dual alternators always online and try to make sure that one is at...
Forum: ADS-B 10-07-2021, 07:02 PM
Replies: 4
Views: 1,251
Posted By akschu
Iíd pick hard wired over wireless every time. ...

Iíd pick hard wired over wireless every time. There are no extra knobs to tune, donít pass go, donít collect $200, the GTX continuously spits out its squawk code over rs-232 and the echo knows what...
Forum: GPS 10-06-2021, 09:28 AM
Replies: 18
Views: 2,211
Posted By akschu
I've gone back and forth on all of this and have...

I've gone back and forth on all of this and have a bit to say about it, here goes:

1. The ipad comes in wifi only or cellular+gps. If you get the cellular model you don't need to hook it up to a...
Forum: Glass Cockpit 09-29-2021, 07:11 AM
Replies: 4
Views: 1,268
Posted By akschu
Declination...

Declination perhaps?

https://www.usgs.gov/science-support/osqi/yes/resources-teachers/magnetic-declination-varies-considerably-across-united
Forum: Electronic Ignition Systems 09-28-2021, 10:24 PM
Replies: 11
Views: 2,431
Posted By akschu
Makes sense, lots of stuff depends on locktite. ...

Makes sense, lots of stuff depends on locktite. Just wanted to make sure I understood how this is locked.
Forum: Electronic Ignition Systems 09-28-2021, 03:32 PM
Replies: 11
Views: 2,431
Posted By akschu
CPI safety wire.

I was looking at the CPI crank trigger setup and saw that two of the bolts have safety wires, and two don't:

Notice that the bolts holding it to the case have safety wires, but the bolts holding the...
Forum: Electronic Ignition Systems 09-24-2021, 11:00 AM
Replies: 91
Views: 59,096
Posted By akschu
I replied on that list. I think this is more...

I replied on that list. I think this is more complex than "shared bus bad discrete bus good." I suspect it has a lot to do with length and gauge of wire. What I don't have a good handle on is how...
Forum: Electronic Ignition Systems 09-22-2021, 01:33 PM
Replies: 91
Views: 59,096
Posted By akschu
20g can't carry 10 amps sustained over any real...

20g can't carry 10 amps sustained over any real length, but it can carry 10amps for around 3 feet as the voltage drop is around 1/2 volt which is 6 watts. If the run between the red and purple...
Forum: Electronic Ignition Systems 09-22-2021, 11:10 AM
Replies: 91
Views: 59,096
Posted By akschu
Thanks for that. I see now in the documentation...

Thanks for that. I see now in the documentation how it works:



Now I would like to know why it needs 3 fuses (7 if you include the built in ones). That seems pretty excessive:

If the...
Forum: Electronic Ignition Systems 09-21-2021, 09:17 AM
Replies: 91
Views: 59,096
Posted By akschu
I'm looking at the wiring diagram for the CPI-2...

I'm looking at the wiring diagram for the CPI-2 and I don't understand why the coil and ECU power wires need to be switched, but not the backup battery.

The docs say that the backup battery draw is...
Forum: Glass Cockpit 09-17-2021, 06:40 PM
Replies: 9
Views: 1,327
Posted By akschu
Right, makes sense. So the only real mode of...

Right, makes sense. So the only real mode of failure on that setup is a short to ground on the aux bus tripping breakers/fuses on the main bus if they blow before the diode. A simple solution is to...
Forum: Glass Cockpit 09-17-2021, 07:42 AM
Replies: 9
Views: 1,327
Posted By akschu
I think I found a solution: From the BandC...

I think I found a solution:

From the BandC regulator documentation (https://bandc.com/wp-content/uploads/2018/05/sd-8_trouble_revA.pdf)


From the ETX104 battery specs...
Forum: Glass Cockpit 09-16-2021, 08:28 PM
Replies: 9
Views: 1,327
Posted By akschu
The power distribution system design is in...

The power distribution system design is in progress. Some of it depends on how the garmin stuff deals with power failover.

Right now I have two completely independent electrical systems. The main...
Forum: Glass Cockpit 09-16-2021, 05:23 PM
Replies: 9
Views: 1,327
Posted By akschu
That's what I was thinking too, but I hope that...

That's what I was thinking too, but I hope that isn't the case because my secondary power system is only good for 8 amps, and I specifically don't want to have a situation where the current draw...
Forum: Glass Cockpit 09-16-2021, 12:14 PM
Replies: 9
Views: 1,327
Posted By akschu
G3X Power 1 and Power 2 failover question

I have a question about the power input that doesn't seem to be covered in the manual which only states that there are diodes to prevent current from flowing between the two inputs.

If I have 13.5...
Forum: RV-15 09-07-2021, 04:12 PM
Replies: 242
Views: 61,650
Posted By akschu
918 is a great number, but I think the 919 would...

918 is a great number, but I think the 919 would have been better.
Forum: Glass Cockpit 09-04-2021, 10:26 AM
Replies: 7
Views: 1,344
Posted By akschu
Thanks for the reply, I don't think that's a huge...

Thanks for the reply, I don't think that's a huge issue for me since the vast majority of frequency input will come from tapping an airport in the g3x.

Does anyone know of any functional difference...
Forum: Glass Cockpit 09-03-2021, 01:53 PM
Replies: 7
Views: 1,344
Posted By akschu
GPS-175 and GTR-20 vs GNC-355.

I need a radio and a navigator.

Looks like the GNC-355 is 1/2lb lighter than a separate GPS-175 and GTR-20.

I have an audio panel so the intercom and bluetooth don't do anything for me.

I guess...
Forum: RV-15 08-29-2021, 05:04 PM
Replies: 242
Views: 61,650
Posted By akschu
Thatís a sweet setup. Iíd be thrilled with that.

Thatís a sweet setup. Iíd be thrilled with that.
Forum: RV-15 08-29-2021, 01:52 PM
Replies: 242
Views: 61,650
Posted By akschu
Thanks for the reply. First, I donít live in...

Thanks for the reply.

First, I donít live in Alaska anymore, Iím in central Washington now, but after 25 years there Iíd point out that Alaska is huge. If you split Alaska into two, Texas would be...
Forum: RV-15 08-29-2021, 10:24 AM
Replies: 242
Views: 61,650
Posted By akschu
I would bet that the Rans folk fly their airplane...

I would bet that the Rans folk fly their airplane slower than 130kt, especially if they have anything close to big tires on them. Also, I don't know anybody that actually goes 142kt in a...
Forum: RV-15 08-29-2021, 10:01 AM
Replies: 242
Views: 61,650
Posted By akschu
What kind of speeds were you getting? What fuel...

What kind of speeds were you getting? What fuel burn?
Forum: RV-15 08-29-2021, 10:00 AM
Replies: 242
Views: 61,650
Posted By akschu
That makes tons of sense, thanks for...

That makes tons of sense, thanks for explaining.




That makes sense too. From my perspective it made sense to have a fast airplane that does what they do, and a slow airplane so that you had...
Forum: RV Building Tips/Techniques 08-27-2021, 11:19 PM
Replies: 15
Views: 4,292
Posted By akschu
I want to be like Ron Covell when I grow up. I...

I want to be like Ron Covell when I grow up. I signed up for the metal bash and will be seeing him in Oct. It would be cool if I saw other aviators there. Check his youtube channel for the dates...
Forum: RV General Discussion/News 08-27-2021, 11:17 PM
Replies: 42
Views: 6,860
Posted By akschu
I have a lightspeed zulu, but run the halo. If I...

I have a lightspeed zulu, but run the halo. If I had to buy new today, it'd be CQ.
Forum: ADS-B 08-27-2021, 04:06 PM
Replies: 2
Views: 1,121
Posted By akschu
Garmin support is saying that you can only update...

Garmin support is saying that you can only update the gdl-50r if you have a g3x, and that the issue is a bug in Gamin pilot where it tries to update a device that isn't supposed to be updated through...
Forum: ADS-B 08-27-2021, 02:42 PM
Replies: 2
Views: 1,121
Posted By akschu
Garmin GDL-50R won't update firmware

Anyone run into issues with GDL-50R firmware updates? I don't have a g3x so I'm trying to update through Garmin Pilot. The ipad sees the unit just fine, prompts for me to update it, I click go, and...
Forum: Glass Cockpit 08-27-2021, 01:01 PM
Replies: 65
Views: 12,091
Posted By akschu
Lemme try and sneak in a lessons learned before...

Lemme try and sneak in a lessons learned before the thread is closed:

To prospective buyers:

Touch the gear, read the docs, generate your own wiring diagram from the information provided on...
Forum: RV Building Tips/Techniques 08-27-2021, 11:59 AM
Replies: 15
Views: 4,292
Posted By akschu
Ordered! Thanks!

Ordered! Thanks!
Forum: RV-15 08-26-2021, 10:10 AM
Replies: 242
Views: 61,650
Posted By akschu
Sandbar vs Cruise eh? Well, not all sandbars...

Sandbar vs Cruise eh?

Well, not all sandbars are created equal. One man's sip is another man's gulp.

Was he talking about a 100ft sandbar that is reserved for carbon cubs and the like? Or was...
Forum: RV General Discussion/News 08-24-2021, 01:04 PM
Replies: 32
Views: 7,907
Posted By akschu
I just went through this. My research seems to...

I just went through this.

My research seems to indicate that the only one you don't want is a GRT for the following reasons:

Their documentation is significantly lacking.
They don't have a canbus...
Forum: Electrical Systems 08-23-2021, 10:21 AM
Replies: 25
Views: 7,396
Posted By akschu
A permanent magnet alternator that also self...

A permanent magnet alternator that also self excites? Welcome to 2021!

I wonder though, since many of us already have the B&C 8 amp setup, would you be interested in selling your DC/DC controller...
Forum: Electrical Systems 08-18-2021, 11:47 PM
Replies: 185
Views: 28,903
Posted By akschu
I think you missed my point... I'm talking about...

I think you missed my point... I'm talking about compounding risk with one microcontroller depending on another and the fact that EFI and EI vendors that I've seen specifically recommend against...
Forum: Electrical Systems 08-18-2021, 08:39 PM
Replies: 185
Views: 28,903
Posted By akschu
I think this looks reasonable enough to use auto...

I think this looks reasonable enough to use auto fuses and still give me the features of seeing if something failed.
Forum: Electrical Systems 08-18-2021, 04:30 PM
Replies: 185
Views: 28,903
Posted By akschu
I'll toss in my $.02 which won't be worth that by...

I'll toss in my $.02 which won't be worth that by the time others read this:

Most everybody I've seen that uses a microcontroller enabled switchbox wouldn't dream of using this for a fuel injection...
Forum: RV General Discussion/News 08-17-2021, 02:34 PM
Replies: 30
Views: 6,823
Posted By akschu
Just another data point here: Canada eh? doesn't...

Just another data point here:

Canada eh? doesn't honor the basic med stuff. So, if you want to fly to Alaska, you have to maintain a 3rd class medical.

schu
Forum: RV Building Tips/Techniques 08-11-2021, 09:07 PM
Replies: 21
Views: 3,477
Posted By akschu
What are you cutting? I made a vertical mount...

What are you cutting? I made a vertical mount for a port-a-band.

Something like this:

https://www.youtube.com/watch?v=Zdz-YZBFpTk

Then I got a foot switch from amazon that just goes inbetween the...
Forum: RV-15 08-09-2021, 01:58 PM
Replies: 242
Views: 61,650
Posted By akschu
I just flew my 1949 C-170A with 145HP and 80x42...

I just flew my 1949 C-170A with 145HP and 80x42 prop from Wenatchee to Oshkosh. Flying over the Rockies then taking off at gross from Cody, WY at 6900 DA really puts things into perspective. A...
Forum: RV-15 08-09-2021, 12:15 PM
Replies: 242
Views: 61,650
Posted By akschu
I appreciate your reply, I suppose I'm missing...

I appreciate your reply, I suppose I'm missing your point because vans already makes several models that meet your goal of going fast. If what you want to do is already served a number of different...
Forum: RV-15 08-09-2021, 11:48 AM
Replies: 242
Views: 61,650
Posted By akschu
East Coast, those are the key words. You don't...

East Coast, those are the key words. You don't need a backcountry airplane on the east coast because there isn't really any back country.

After spending 25 years in AK, and now in WA I can tell you...
Forum: RV-15 08-09-2021, 11:35 AM
Replies: 242
Views: 61,650
Posted By akschu
I haven't seen those. That's pretty much the...

I haven't seen those. That's pretty much the super 170 I've been talking about, but with an extra 300lbs of gross weight.

I see they are around 1450lbs with 2550 gross which is the same as the 4...
Forum: RV-15 08-06-2021, 09:49 PM
Replies: 242
Views: 61,650
Posted By akschu
Super interesting responses. When I started...

Super interesting responses.

When I started this thread I was just asking if people thought it's going to be a small (rotax), medium (4cyl), or large (6cyl) sized bushplane. I incorrectly ...
Showing results 1 to 64 of 367

 
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