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Search: Posts Made By: vlittle
Forum: RV General Discussion/News 09-17-2022, 08:39 AM
Replies: 15
Views: 1,598
Posted By vlittle
Here you go... Used the paperclip to upload file...

Here you go... Used the paperclip to upload file from url.

31082
Forum: RV Building Tips/Techniques 09-14-2022, 11:56 AM
Replies: 9
Views: 479
Posted By vlittle
Here are some 17 year old pics from my -9A that...

Here are some 17 year old pics from my -9A that might help. Solid, no cracks.


30965

30966

30967

Vern
Forum: RV-8/8A 09-14-2022, 11:36 AM
Replies: 8
Views: 1,031
Posted By vlittle
And then when you build your second airplane, you...

And then when you build your second airplane, you will have all of the expertise and confidence to customize it. By the time you build your third airplane, you will likely want it to be stock...
Forum: Safety 09-13-2022, 09:45 AM
Replies: 67
Views: 5,713
Posted By vlittle
... That sometimes happens when the passenger is...

... That sometimes happens when the passenger is reading a book and the pax stick has a trim button on it. The stick is perfect for holding the book in a comfortable position.

My new airplane is...
Forum: ADS-B 09-09-2022, 10:24 AM
Replies: 8
Views: 1,074
Posted By vlittle
I confirm what Rob has posted. He has flight...

I confirm what Rob has posted. He has flight tested his tailBeaconX with a huVVer-AVI-TBX control head, and I have bench tested it with my tailBeaconX.

Vern
Forum: Glass Cockpit 09-05-2022, 09:35 AM
Replies: 13
Views: 756
Posted By vlittle
Just to be complete, here is the EMS protection...

Just to be complete, here is the EMS protection circuitry that I mounted directly on my (phenolic) shunt. This was reviewed by Dynon, and it's been flying for 8 years or so. There were a couple of...
Forum: Glass Cockpit 09-04-2022, 08:31 PM
Replies: 13
Views: 756
Posted By vlittle
The shunt mount in my Rocket melted. I made a new...

The shunt mount in my Rocket melted. I made a new one from phenolic, which is far more robust. I also incorporated overvoltage clamps to protect the EMS.
Forum: Electrical Systems 09-03-2022, 09:13 AM
Replies: 11
Views: 860
Posted By vlittle
<off topic> I was all-in on antenna theory and...

<off topic>

I was all-in on antenna theory and ham radio stuff in my youth (I still have my 1969 copy of the Radio Amateurs Handbook), but then I received the January 1975 edition of Popular...
Forum: Reviews 09-01-2022, 10:20 PM
Replies: 7
Views: 2,949
Posted By vlittle
Yes, this will work. Just to be confusing, the...

Yes, this will work. Just to be confusing, the AMX-4A and AMX-4B are now just one device, the AMX-4A.

Vern
Forum: COMM 08-25-2022, 07:12 AM
Replies: 30
Views: 1,889
Posted By vlittle
On this page, the AMX-2A Install Guide shows an...

On this page, the AMX-2A Install Guide shows an example of how to connect two radios to one intercom: https://www.huvver.tech/open-source-hardware/

Cheers, Vern
Forum: Glass Cockpit 08-06-2022, 09:54 AM
Replies: 8
Views: 855
Posted By vlittle
I have developed several auto-trim controlllers,...

I have developed several auto-trim controlllers, and here is what I have found. This is based on Dynon’s algorithm, I can’t judge what Garmin does.

If you consistently use the autopilot to fly a...
Forum: RV Building Tips/Techniques 08-05-2022, 09:19 AM
Replies: 21
Views: 1,810
Posted By vlittle
Are you sure you purchased Bonderite? The bottle...

Are you sure you purchased Bonderite? The bottle instructions clearly say "Bonoerite". This kind of spelling mistake is often seen on counterfeit products from China.

Some time ago, my company had...
Forum: RV-7/7A 07-28-2022, 07:25 PM
Replies: 12
Views: 1,209
Posted By vlittle
I like that logic better than the timeout. It’s...

I like that logic better than the timeout. It’s instinctive and simple. I designed an auto-trim controller some years ago that implemented it. The problem with a timeout is that in a go-around you...
Forum: Reviews 07-17-2022, 10:41 AM
Replies: 7
Views: 2,949
Posted By vlittle
Replying to an 11-year old posting (yikes!), I...

Replying to an 11-year old posting (yikes!), I see that MakerPlane has re-introduced my family of audio mixers.

The original 10-channel mono mixer (AMX-2A) and the 5-channel stereo mixer (AMX-4A)...
Forum: Electrical Systems 07-15-2022, 08:28 PM
Replies: 42
Views: 3,228
Posted By vlittle
Here's my schematic of a dual-jack type audio...

Here's my schematic of a dual-jack type audio system. It also includes the power regulator for the headsets.

Vern

http://www.vx-aviation.com/sprocket/photos/panel_elec/schematics-2/AUDIO2.pdf...
Forum: RV-14 07-07-2022, 08:16 AM
Replies: 5
Views: 1,171
Posted By vlittle
As I recall, you must able to exit the aircraft...

As I recall, you must able to exit the aircraft in flight (bail out).
In an RV, this means ejecting the canopy, and wearing a parachute.

In my Rocket, I made a mechanism that was installed on the...
Forum: ADS-B 07-06-2022, 10:07 AM
Replies: 17
Views: 1,621
Posted By vlittle
Evidence of the huVVer-AVI tailBeaconX controller...

Evidence of the huVVer-AVI tailBeaconX controller in action:

First, Rob Prior in his RV-6, Tweety. Note the tailBeaconX on the tail stinger. You may need to click on the photo to make it larger. ...
Forum: ADS-B 07-05-2022, 09:46 AM
Replies: 17
Views: 1,621
Posted By vlittle
Here's a teaser video produced by MakerPlane for...

Here's a teaser video produced by MakerPlane for the huVVer-AVI TBX controller.

It's a standard unit (3" version), loaded with the TBX App. Anyone with an existing unit running the Flight...
Forum: RV-14 06-29-2022, 10:10 AM
Replies: 6
Views: 583
Posted By vlittle
Here's what you need: 27595 cheers, Vern

Here's what you need:

27595

cheers, Vern
Forum: ADS-B 06-26-2022, 06:45 PM
Replies: 17
Views: 1,621
Posted By vlittle
Hi Jim. I don’t have one on my Rocket, but Rob...

Hi Jim. I don’t have one on my Rocket, but Rob Prior has one on his 6, mounted on the Stinger. He’s done all the in-flight testing.

My tailBeaconX is going into my new build, along with the OnSpeed...
Forum: ADS-B 06-25-2022, 08:23 PM
Replies: 17
Views: 1,621
Posted By vlittle
As of today (June 25, 2022), the first public...

As of today (June 25, 2022), the first public version of the tailBeaconX control head App has been released!

It's available for downloading here: www.huVVer.tech/huvver-avi-tbx-app ...
Forum: ADS-B 06-21-2022, 09:42 AM
Replies: 17
Views: 1,621
Posted By vlittle
So what are the cosmetic changes, you...

So what are the cosmetic changes, you ask?

27299

The numerical squawk code display has been slightly modified for legibility (different #1, #3, #4, #7) to look a little less like Runes. (I guess I...
Forum: ADS-B 06-21-2022, 09:20 AM
Replies: 17
Views: 1,621
Posted By vlittle
Flight testing with the huVVer-AVI programmed as...

Flight testing with the huVVer-AVI programmed as a tailBeaconX control head was successful!

We flew a two-ship sortie to shake out all of the configuration modes and it all went well. A couple of...
Forum: Rocket 06-16-2022, 02:12 PM
Replies: 19
Views: 3,019
Posted By vlittle
http://www.vx-aviation.com/sprocket/empennage.htm

http://www.vx-aviation.com/sprocket/empennage.htm
Forum: Rocket 06-16-2022, 09:10 AM
Replies: 19
Views: 3,019
Posted By vlittle
I want to point out that Mark supported me a...

I want to point out that Mark supported me a great deal when I built a Harmon Rocket.

He sold me a sliding canopy, SS windshield, wheel pants, spinner, and a propeller (at least) and provided me a...
Forum: Glass Cockpit 06-03-2022, 09:35 AM
Replies: 5
Views: 1,285
Posted By vlittle
I think you mean Vacc... As for flying OnSpeed...

I think you mean Vacc...

As for flying OnSpeed with SkyView, the only way that currently supported is a full OnSpeed installation with the black box IMU and an optional display. The IMU connects to...
Forum: Glass Cockpit 06-02-2022, 11:34 AM
Replies: 180
Views: 55,234
Posted By vlittle
Major update to Version 5.00 of the Flight...

Major update to Version 5.00 of the Flight Instruments library. Added Dynon D10A/D100 & OnSpeed streaming support!

26578

Now the huVVer-AVI devices support the Dynon D1x protocol and the OnSpeed...
Forum: ADS-B 05-29-2022, 10:48 PM
Replies: 17
Views: 1,621
Posted By vlittle
The controller has been successful integrated...

The controller has been successful integrated with a SkyView HDX serving as an altitude encoder and the tailBeaconX. TBX is responding to all control information. See pic.

The integration with a...
Forum: ADS-B 05-27-2022, 01:12 PM
Replies: 17
Views: 1,621
Posted By vlittle
Something I forgot to mention is that uAvionics...

Something I forgot to mention is that uAvionics has supported me in this development. Great tech support.

Also Rob “Tweety” Prior has been reviewing the design and has volunteered to flight test....
Forum: ADS-B 05-27-2022, 09:23 AM
Replies: 17
Views: 1,621
Posted By vlittle
ADSB beaconX control head

Here is a preview of the beaconX controller that we developed based on the open-source huVVer-AVI devices. I have moved this from another thread, in order to focus on this one application.

Status: ...
Forum: Glass Cockpit 05-25-2022, 12:43 PM
Replies: 12
Views: 927
Posted By vlittle
A simple solution for most EFIS systems is a...

A simple solution for most EFIS systems is a resistive summer (Note: I haven’t done this with GRT).

Each of the red splodges is a 150 ohm resistor. Connect a stereo efis to the L&R points. For mono...
Forum: Glass Cockpit 05-19-2022, 11:05 AM
Replies: 180
Views: 55,234
Posted By vlittle
SL70/skyBeacon/tailBeacon/tailBeaconX Controller!

I have successfully implemented a huVVer-AVI based controller for the listed transponders.

It uses serial altitude from a compatible source, such as Dynon D10A, Dynon SkyView, Trimble, Icarus and...
Forum: ADS-B 05-01-2022, 06:39 PM
Replies: 33
Views: 10,531
Posted By vlittle
Here is the result of my preliminary testing of...

Here is the result of my preliminary testing of the TBX:

1. My iPhone cannot communicate with it. My iPad Mini works, but needed a few attempts. Apparently this is a common problem (sad face).

2....
Forum: ADS-B 04-30-2022, 07:18 PM
Replies: 33
Views: 10,531
Posted By vlittle
This is a custom design, just to illustrate the...

This is a custom design, just to illustrate the TBX.
Forum: ADS-B 04-29-2022, 06:17 PM
Replies: 33
Views: 10,531
Posted By vlittle
TSO TBX

Received my TSO’d tailBeaconX yesterday, after waiting a year. Still no way to drive it, since Dynon doesn’t support it. My avionics supplier wouldn’t sell me a bundle with a 2” control head because...
Forum: RV-14 04-25-2022, 06:13 PM
Replies: 3
Views: 879
Posted By vlittle
Not from an RV, but based on advice from Gus...

Not from an RV, but based on advice from Gus Fennel, formerly of Vans:
Smooth the rib using a disc sander so it follows the skin profile. Yes it will thin the flange around the notches, but with some...
Forum: RV-14 04-23-2022, 12:30 PM
Replies: 7
Views: 945
Posted By vlittle
In my Rocket, I mounted a locking drain that...

In my Rocket, I mounted a locking drain that doubles as an alternate static source and access point for altimeter testing. Also served as a mounting for an eyeball light.

Vern


25037
Forum: Glass Cockpit 04-17-2022, 11:38 AM
Replies: 180
Views: 55,234
Posted By vlittle
It’s actually 0.063. The ‘hat’ on top is not...

It’s actually 0.063. The ‘hat’ on top is not required, has now been removed. Makes it an L-shape.

The back seat panel is also 0.063 for stiffness.

I used a hole punch, but CNC/waterjet will be...
Forum: Electrical Systems 04-13-2022, 08:00 AM
Replies: 53
Views: 21,126
Posted By vlittle
Following up: One characteristic of a failing...

Following up:

One characteristic of a failing alternator (diode or stator failures) is the high pitched whine that you hear in the headsets.

The level increases with load, so it can be easily...
Forum: Canada 04-12-2022, 11:21 AM
Replies: 4
Views: 749
Posted By vlittle
Nav Canada Billing

A heads up to anyone building an aircraft in Canada:

The MD-RA has been recommending that you register your new-built airplane 6 months ahead of when you expect to apply for flight authority. This...
Forum: Electrical Systems 04-07-2022, 08:07 AM
Replies: 53
Views: 21,126
Posted By vlittle
Didn't check the bearings... my alternator has...

Didn't check the bearings... my alternator has less than 100 hours on it.

VV
Forum: COMM 04-06-2022, 08:11 PM
Replies: 3
Views: 641
Posted By vlittle
https://www.onsemi.com/pdf/datasheet/d44h-d.pdf

https://www.onsemi.com/pdf/datasheet/d44h-d.pdf
Forum: Electrical Systems 04-06-2022, 06:48 PM
Replies: 53
Views: 21,126
Posted By vlittle
I can confirm that the INR724 is an exact fit. My...

I can confirm that the INR724 is an exact fit. My bench test on the repaired PP alternator was successful. Used an electric drill with a 3/4” socket to drive the pully, and wired up a small 12V...
Forum: Glass Cockpit 03-26-2022, 05:45 PM
Replies: 180
Views: 55,234
Posted By vlittle
The D10A in my RV-9A uses the serial port to talk...

The D10A in my RV-9A uses the serial port to talk to a device that I made as a flaps overspeed alarm. It is the same port used to connect to the PC for software updates. Been running fine for 16...
Forum: Glass Cockpit 03-25-2022, 07:19 PM
Replies: 180
Views: 55,234
Posted By vlittle
...I now have a Beta version of the instrument...

...I now have a Beta version of the instrument code that incorporates a few more protocols:

-Dynon SkyView
-Dynon D10A/D100 ADAHRS
-Garmin G3X
-Garmin G5
-OnSpeed ADAHRS

I also have incorporated...
Forum: RV Building Tips/Techniques 03-23-2022, 08:33 AM
Replies: 27
Views: 2,721
Posted By vlittle
The law of unintended...

The law of unintended consequences...

"....Stiffening a rear spar is another example of how a modification intended to increase the strength of a wing can actually weaken it. Late in WW-I Fokker...
Forum: Tools 03-16-2022, 11:15 PM
Replies: 17
Views: 1,865
Posted By vlittle
Bought a Yihua 882D on Amazon for...

Bought a Yihua 882D on Amazon for $57.00
Soldering Iron + Hot Air gun. Managed do do a little SMT work with it.

Use it at my vacation home, works really well and is compact. I have a fancier...
Forum: RV-9/9A 03-16-2022, 11:05 PM
Replies: 12
Views: 1,639
Posted By vlittle
Here's a thousand words. Hole drilled in cowling...

Here's a thousand words. Hole drilled in cowling for access.

23479
Forum: Electrical Systems 03-11-2022, 09:11 AM
Replies: 28
Views: 3,299
Posted By vlittle
Warning: Honeywell has discontinued some of their...

Warning: Honeywell has discontinued some of their product lines, including this one. "This product is no longer manufactured", to be exact.

VV
Forum: RV General Discussion/News 03-11-2022, 08:54 AM
Replies: 3
Views: 1,092
Posted By vlittle
Now that Continental makes Lycoming-type engines...

Now that Continental makes Lycoming-type engines (IO-340), it is a little fuzzier. It's all in the operator's manual, of course.
Forum: ADS-B 03-11-2022, 08:35 AM
Replies: 12
Views: 2,913
Posted By vlittle
i have some experience in tech startups, venture...

i have some experience in tech startups, venture capital (VC), mergers & acquisitions (M&A) and private equity investments. As recently as October 2021, I spearheaded a seven figure investment for...
Forum: Glass Cockpit 03-06-2022, 08:33 AM
Replies: 180
Views: 55,234
Posted By vlittle
I have limited my development to known good...

I have limited my development to known good (established) data sources. This allows me to focus on the representation of reliable data and not pioneering where others have more expertise.

Having...
Forum: Glass Cockpit 03-04-2022, 02:30 PM
Replies: 180
Views: 55,234
Posted By vlittle
We may will eventually support the GDL90...

We may will eventually support the GDL90 protocol, but we have the vast majority of AHRS installations covered by the Dynon/AFS/Garmin streaming protocols. We will also support the OnSpeed AHRS...
Forum: Glass Cockpit 03-03-2022, 08:48 AM
Replies: 180
Views: 55,234
Posted By vlittle
Update on huVVer-AVI: Release 4.00 of the device...

Update on huVVer-AVI:

Release 4.00 of the device software is available now available here: http://www.huvver.tech/huvver-avi/ Existing installs can use the Over-The-Air (OTA) update function to...
Forum: Electrical Systems 03-02-2022, 09:12 AM
Replies: 28
Views: 2,634
Posted By vlittle
This diode uses the case (tab) as the cathode and...

This diode uses the case (tab) as the cathode and the other two terminals as the anode. It's all in the datasheet.

This is why I use it. it mounts directly on the essential busbar as shown. The...
Forum: Electrical Systems 03-01-2022, 04:23 PM
Replies: 28
Views: 2,634
Posted By vlittle
Here's how I mounted mine. The two breakers are...

Here's how I mounted mine. The two breakers are for the coils and controller of my Electroair ignition.

VV

22854
Forum: Electrical Systems 02-28-2022, 07:16 PM
Replies: 28
Views: 2,634
Posted By vlittle
The diode I use is the V30100S-E3. Rated for...

The diode I use is the V30100S-E3. Rated for 30A, 100V. Right tradeoff between forward voltage drop and reverse leakage. About 0.5V drop at 10A and 0.2V at 1A. That will bring a lead-acid...
Forum: Electrical Systems 02-28-2022, 07:46 AM
Replies: 28
Views: 2,634
Posted By vlittle
I don't normally comment on other people's...

I don't normally comment on other people's designs because I don't know the mission/objective and everyone makes different tradeoffs.

However, I will point out that every device (switch, fuse,...
Forum: RV Building Tips/Techniques 02-26-2022, 09:20 AM
Replies: 28
Views: 3,878
Posted By vlittle
i sealed all of my Rocket control surfaces to...

i sealed all of my Rocket control surfaces to minimize excrescence drag. I also sealed the interior wingtips with aluminum tape for the same reason.

I used carefully shaped aluminum plates and...
Forum: Canada 02-23-2022, 09:59 AM
Replies: 41
Views: 4,686
Posted By vlittle
My discussions with Dynon confirm what you are...

My discussions with Dynon confirm what you are saying. Dynon has nothing to lose by announcing their plans early to keep their customer base happy, rather than forcing them to adopt a competitive...
Forum: Canada 02-22-2022, 10:02 AM
Replies: 41
Views: 4,686
Posted By vlittle
I met with uAvionix last weekend (Feb 19/22). I...

I met with uAvionix last weekend (Feb 19/22).

I asked the question "will the experimental version of the tailBeaconX be acceptable to Nav Canada to meet the forthcoming requirements?".

The answer...
Forum: Electrical Systems 02-22-2022, 09:23 AM
Replies: 24
Views: 2,425
Posted By vlittle
Here's a tip for mounting the ACS ignition...

Here's a tip for mounting the ACS ignition switch:

Make the 'inny' an 'outy'.
Cut a small piece of AWG 14 house wiring (aka Romex) about 1/8" long.
When mounting the switch, push the Romex into...
Forum: Glass Cockpit 02-20-2022, 04:27 PM
Replies: 180
Views: 55,234
Posted By vlittle
I am working with John Nicol at MakerPlane to...

I am working with John Nicol at MakerPlane to take on this device. We have a long relationship in open-source avionics, and he's committed to supporting production of OnSpeed devices. He is also...
Forum: Glass Cockpit 02-15-2022, 09:01 AM
Replies: 180
Views: 55,234
Posted By vlittle
Not Arduino, but supporting device for OnSpeed...

Not Arduino, but supporting device for OnSpeed installations. Multi-channel audio mixer based on a 15 year-old design. Updated to surface mount and can drive headphones directly, or connect to...
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