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Search: Posts Made By: vlittle
Forum: Glass Cockpit 02-20-2019, 10:41 PM
Replies: 32
Views: 1,769
Posted By vlittle
Several years ago, I worked with Garmin and Dynon...

Several years ago, I worked with Garmin and Dynon to align their serial ADAHRS and EIS data streams, with a protocol that I called FIX. They both adopted it and it was released in the original G3X...
Forum: RV-14 02-19-2019, 09:58 AM
Replies: 14
Views: 758
Posted By vlittle
I think you need to answer two questions...

I think you need to answer two questions first.
-1. what do I want?
-2. what will the person who buys my airplane want?

I could be that most extra cost/features in a panel come from addressing (2)....
Forum: Electrical Systems 02-16-2019, 03:25 PM
Replies: 6
Views: 360
Posted By vlittle
Hans, these drivers will lose about 2 volts in...

Hans, these drivers will lose about 2 volts in drive voltage, causing the trim motors to slow down. This may not be an issue for you, but if it is, let me know.

V
Forum: West (and Southwest) 02-12-2019, 10:44 AM
Replies: 19
Views: 2,658
Posted By vlittle
I had a long discussion with the UAvionics 'guy'....

I had a long discussion with the UAvionics 'guy'. Once he figured out that I was an EE, He opened up about the technology and politics of ADS-B. He wasn't trying to sell me anything. Perhaps you...
Forum: West (and Southwest) 02-09-2019, 08:07 PM
Replies: 19
Views: 2,658
Posted By vlittle
...single representative? You mean Mitch Lock,...

...single representative? You mean Mitch Lock, President of Vans!
Forum: Temp / Test / Misc. (posts deleted after 2 weeks) 02-09-2019, 07:50 PM
Replies: 3
Views: 859
Posted By vlittle
Mitch Lock, tech support!

At Copperstate 2019 today. Mitch was there with the RV-14, talking to other RV builders and prospective customers.

Nice guy, very patient listener! One gentleman asked if he was the tech support...
Forum: RV General Discussion/News 02-08-2019, 02:11 PM
Replies: 17
Views: 1,062
Posted By vlittle
An antenna mounted at a 45 degree angle to the...

An antenna mounted at a 45 degree angle to the longitudinal access and located on the 'stinger' position of the rudder would provide an almost 360x360 view of both ground and satellite stations. ...
Forum: RV General Discussion/News 02-05-2019, 09:46 AM
Replies: 29
Views: 2,088
Posted By vlittle
Off topic, but important: At my current annual...

Off topic, but important:

At my current annual inspection, I found that one of my silicone spark plug leads (Taylor Spiro-Pro 8mm) had burned through to the core. it had been run nearby an exhaust...
Forum: RV General Discussion/News 01-23-2019, 05:59 PM
Replies: 15
Views: 1,614
Posted By vlittle
I share your pain. If they can't get this right,...

I share your pain. If they can't get this right, then that's an indication of their QC process... sigh.
Forum: RV-8/8A 12-19-2018, 10:33 AM
Replies: 21
Views: 4,037
Posted By vlittle
I hate to agree with Rob in public, but my next...

I hate to agree with Rob in public, but my next plane is going to have a much simpler panel/electrical system. After flying with a dual EFIS +GPS+iPad in my Rocket, I realize that about 90% of the...
Forum: RV General Discussion/News 12-12-2018, 09:55 AM
Replies: 12
Views: 867
Posted By vlittle
Nice panel, well organized switches. Compare...

Nice panel, well organized switches.

Compare this with what the greatest generation flew!

https://media.defense.gov/2015/Aug/05/2001267186/-1/-1/0/150805-F-IO108-001.JPG


I guess my point is that...
Forum: COMM 12-12-2018, 09:38 AM
Replies: 14
Views: 947
Posted By vlittle
Dang, for like a hundred years I've been using...

Dang, for like a hundred years I've been using European nomenclature. 150R is 150 ohms, 2K0 is 2.0 kohms and so on. The units designator replaces the decimal point. That's because in the olden days...
Forum: COMM 12-10-2018, 09:45 PM
Replies: 14
Views: 947
Posted By vlittle
Hi Paul, check this thread:...

Hi Paul, check this thread: http://www.vansairforce.com/community/showthread.php?p=868366&highlight=Bluetooth#post868366. First post has DIY stuff.

I used both a music-only module and a cell...
Forum: RV models of the future (RV-??) 12-06-2018, 12:06 AM
Replies: 62
Views: 6,415
Posted By vlittle
I made the decision a year ago to build something...

I made the decision a year ago to build something that would get me in and out of the rough/short strips we have in BC, and highlighted by the BC General Aviation Association airstrip map.

My choice...
Forum: Glass Cockpit 11-22-2018, 01:30 PM
Replies: 19
Views: 5,613
Posted By vlittle
Here's another teaser. As I slowly ramp up on...

Here's another teaser. As I slowly ramp up on this project, which will be timed to coincide with my new aircraft build, I thought I would share some more information.

Since the Falcon-ESP uses a...
Forum: RV-10 10-27-2018, 08:18 AM
Replies: 6
Views: 713
Posted By vlittle
I had to bend the 1/4" forward tank attach...

I had to bend the 1/4" forward tank attach brackets on my Rocket to sit flush with the fuselage. Since it was a 2-dimensional curve, the bending was tricky. A straight bend should be easier.

My...
Forum: Electronic Ignition Systems 10-25-2018, 11:13 PM
Replies: 14
Views: 3,404
Posted By vlittle
Doesn't one of your colonists run your central...

Doesn't one of your colonists run your central bank?
Forum: RV General Discussion/News 10-20-2018, 08:24 AM
Replies: 29
Views: 2,666
Posted By vlittle
I have documented failures of Carling switches. ...

I have documented failures of Carling switches. I posted this information about 12 years ago on this site and had Bob Nuckolls follow up with a detailed analysis on the Aeroelectric forum. In my...
Forum: RV General Discussion/News 10-17-2018, 10:15 AM
Replies: 4
Views: 963
Posted By vlittle
Why not just use the stock angle...

Why not just use the stock angle brace?:

http://www.vx-aviation.com/sprocket/photos/fwf/20111124_0446.JPG
Forum: Traditional Aircraft Engines 10-14-2018, 08:20 PM
Replies: 12
Views: 2,004
Posted By vlittle
Good tip on checking the fuel vent. Since this...

Good tip on checking the fuel vent.

Since this is a new aircraft, you should also check all of your fuel screens and filters for debris. This includes the gascolator, fuel pickups and servo finger...
Forum: RV General Discussion/News 10-08-2018, 07:28 PM
Replies: 17
Views: 3,865
Posted By vlittle
Only if you are building a Gimli Glider. For the...

Only if you are building a Gimli Glider. For the rest of us, it's the opposite... 2.2 lbs = 1 kilogram (actually 9.8 Newtons, but nobody cares).
Forum: RV General Discussion/News 10-08-2018, 07:16 PM
Replies: 50
Views: 9,710
Posted By vlittle
Thanks for the weight analysis. Looks like the...

Thanks for the weight analysis. Looks like the SDS system does not have a weight penalty, but has significant benefits. However, with all of the flywheel variants in the market, looks like there...
Forum: RV General Discussion/News 10-04-2018, 09:03 PM
Replies: 50
Views: 9,710
Posted By vlittle
What would be nice if we had a simple A/B cost...

What would be nice if we had a simple A/B cost and weight comparison showing a complete SDS solution for FI and EI and B&C rear alternator vs conventional FI, mags and front alternator.

For example,...
Forum: RV General Discussion/News 10-04-2018, 08:03 PM
Replies: 50
Views: 9,710
Posted By vlittle
But the whole point is to use your ignition...

But the whole point is to use your ignition system (and FI) AND save weight. So that means you need to design a new magnet and crank sensor setup. I know you don't have enough to do, so get to it!
Forum: RV Building Tips/Techniques 09-23-2018, 09:32 PM
Replies: 9
Views: 1,000
Posted By vlittle
I have an OFF-ARM-ON Switch on the panel. In the...

I have an OFF-ARM-ON Switch on the panel. In the ARM position, the Infinity grip pinky switch is enabled. Maybe...
Forum: COMM 09-18-2018, 08:07 PM
Replies: 13
Views: 1,798
Posted By vlittle
Check this thread:...

Check this thread: http://www.vansairforce.com/community/showthread.php?t=111560&highlight=Bluetooth+vern

V
Forum: Glass Cockpit 09-15-2018, 08:31 AM
Replies: 19
Views: 5,613
Posted By vlittle
Well I finished my other project and can slowly...

Well I finished my other project and can slowly ramp up again on this.

My intention with the Falcon-ESP32 project is to provide complete open-source design information so that you can order boards...
Forum: RV models of the future (RV-??) 09-01-2018, 10:15 AM
Replies: 393
Views: 96,676
Posted By vlittle
This is not the place for this discussion, sorry.

This is not the place for this discussion, sorry.
Forum: Rocket 09-01-2018, 10:05 AM
Replies: 30
Views: 6,045
Posted By vlittle
At 6'2" and on the large side, there is no...

At 6'2" and on the large side, there is no comparison... the Rocket is like a living room compared to the RV-8.

Let's face it. You know what you want...

Here's are pictures of the one for sale...
Forum: RV models of the future (RV-??) 08-30-2018, 08:05 PM
Replies: 393
Views: 96,676
Posted By vlittle
Doug’s manifesto on the home page 18/08/30 that...

Doug’s manifesto on the home page 18/08/30 that is pining for an RV ‘Super Cub’ is spot on. The market has changed. Boomers are getting older. Low and slow local flying is more attractive. Landing on...
Forum: Fuel Injection Systems 08-27-2018, 09:17 PM
Replies: 14
Views: 3,234
Posted By vlittle
In the distant past, I would design electronic...

In the distant past, I would design electronic assemblies to fit in the Canada Post Light Packet or Small Packet categories. This was so economical that I offered free shipping anywhere in the...
Forum: Electrical Systems 08-22-2018, 07:55 AM
Replies: 44
Views: 4,631
Posted By vlittle
Hey man, it was the 60's. I don't remember...

Hey man, it was the 60's. I don't remember much.

Just to rub it in. I have the January, 1975 edition of Popular Electronics. It's been in a zip lock bag since I read it in 1974 and has my name on...
Forum: RV-7/7A 08-19-2018, 08:11 PM
Replies: 13
Views: 2,118
Posted By vlittle
Let me clarify. My controller positions both...

Let me clarify. My controller positions both flaps and trim simultaneously, greatly reducing workload, especially in the go-around. I fully retained the manual position system for normal flaps-only...
Forum: Electrical Systems 08-17-2018, 06:33 PM
Replies: 16
Views: 1,447
Posted By vlittle
Every procedure must have a specification. That’s...

Every procedure must have a specification. That’s true in any manufacturing process that purports to have a quality standard. Measuring to spec is another problem, so many mfrs adopt a ‘correct by...
Forum: RV-4 08-15-2018, 09:01 AM
Replies: 92
Views: 60,683
Posted By vlittle
That was my original purpose with the 380s as...

That was my original purpose with the 380s as well. Unfortunately, the James pants are just too tight of a fit. Everything was fine until I reversed the tires on the rims, then they...
Forum: RV-4 08-14-2018, 04:38 PM
Replies: 92
Views: 60,683
Posted By vlittle
I put 380’s on my HRII with the Sam James pants,...

I put 380’s on my HRII with the Sam James pants, but itwas too tight of a fit. In the end I used Desser retreads which are the same diameter as the 380s, but narrower.
Forum: RV-9/9A 08-12-2018, 10:23 AM
Replies: 17
Views: 2,242
Posted By vlittle
Terry, with your flight hours, any of the RVs...

Terry, with your flight hours, any of the RVs will work for you. It all depends on the mission. I built a 9A intending to use it for long cross countries, but most of my flights ended up being...
Forum: Electrical Systems 08-01-2018, 10:47 PM
Replies: 7
Views: 927
Posted By vlittle
What I'd really like to know is who makes the...

What I'd really like to know is who makes the Cavalon's 3" instruments. Not in your pictures, but they are beautiful Hi Res LCDs. They aren't from MGL or AeroVonics.
Forum: RV General Discussion/News 07-28-2018, 07:50 PM
Replies: 50
Views: 9,710
Posted By vlittle
Well that's a problem unless there's another way....

Well that's a problem unless there's another way. I still like the aft mounted alternator, though.
Forum: RV General Discussion/News 07-28-2018, 11:08 AM
Replies: 50
Views: 9,710
Posted By vlittle
Ross, love what you are doing. I have a...

Ross, love what you are doing.
I have a suggestion for you: make a version of the flywheel without the pully.

Here's why:...
Forum: Electrical Systems 07-27-2018, 02:20 PM
Replies: 46
Views: 10,359
Posted By vlittle
Actually, the rectifier section is not generating...

Actually, the rectifier section is not generating more heat. It's the field coil that is generating more heat at low RPMs. The rectifier gets hotter because the field coil is hotter and the...
Forum: RV General Discussion/News 07-24-2018, 08:00 PM
Replies: 19
Views: 2,896
Posted By vlittle
Vans' wheel jackpoint kit and a right angle...

Vans' wheel jackpoint kit and a right angle screwdriver to get at the lowest screws on your wheelpants when you have a flat tire. Grrrr.
Forum: RV-7/7A 07-24-2018, 06:46 PM
Replies: 13
Views: 2,118
Posted By vlittle
I've done a deep dive on flap positioning systems...

I've done a deep dive on flap positioning systems and not been totally satisfied with any of the products.

So what's an old engineer going to do? Yup, I designed my own. It works in parallel with...
Forum: RV Ongoing Maintenance Issues 07-22-2018, 10:10 PM
Replies: 12
Views: 1,459
Posted By vlittle
References http://www.techenomics.net/oil-fluid-an...

References
http://www.techenomics.net/oil-fluid-analysis/test-explanations/
https://www.blackstone-labs.com/the-silicon-bugaboo.php
Forum: RV Ongoing Maintenance Issues 07-22-2018, 11:07 AM
Replies: 12
Views: 1,459
Posted By vlittle
A common source of elemental silicon in your oil...

A common source of elemental silicon in your oil analysis is from silicone grease (DC-4) used as a lubricant on the oil filter rubber sealing ring.

If you don't do your own filter changes, your...
Forum: RV General Discussion/News 07-22-2018, 12:56 AM
Replies: 883
Views: 189,656
Posted By vlittle
Or these....

Or these. http://www.galco.com/buy/IDEC/AL6H-M24P-G IDEC makes lamps in various shapes and colors with and without integrated switches. Use them in the Rocket. The master alarm lamp I use as a push...
Forum: Electronic Ignition Systems 07-20-2018, 11:03 AM
Replies: 66
Views: 7,353
Posted By vlittle
Hi Otis. I have some educated opinions on...

Hi Otis. I have some educated opinions on this.

1. Over rev limitation. I agree.
2. Software vs. discrete logic. I agree in general, but at some point software will be embedded in everything. I...
Forum: RV Photo/Video URLs 07-19-2018, 12:16 AM
Replies: 6
Views: 1,471
Posted By vlittle
Beautiful part of the world! I am fortunate to...

Beautiful part of the world! I am fortunate to see the San Juan and the Gulf Islands every day. Except that day I was intercepted by an E/A-18 from Whidbey NAS while sightseeing in my RV...

V
Forum: RV-8/8A 07-12-2018, 10:49 AM
Replies: 7
Views: 1,452
Posted By vlittle
I highly recommend that airplane owners talk to a...

I highly recommend that airplane owners talk to a paint shop about the effect of silicone contamination. Using a product like silicone lube or Pledge may make your aircraft difficult to...
Forum: RV-12/RV-12iS 07-08-2018, 04:56 PM
Replies: 24
Views: 3,985
Posted By vlittle
In a perfect world, the 100LL replacement can be...

In a perfect world, the 100LL replacement can be made street legal and the auto industry will embrace it to build higher compression and more efficient engines with longer range. This will lead to...
Forum: Glass Cockpit 06-23-2018, 03:23 PM
Replies: 8
Views: 1,428
Posted By vlittle
It could be used as a magnetic heading indicator,...

It could be used as a magnetic heading indicator, thus completing a six-pack. If you could emulate round dials on the ASI and Altimeter, better yet!

V
Forum: Glass Cockpit 06-23-2018, 01:32 PM
Replies: 8
Views: 1,428
Posted By vlittle
Rainier, thanks for introducing these! I've had...

Rainier, thanks for introducing these! I've had my fingers crossed for several years hoping you would.

Although I'm a fan of modern EFIS systems, I find them expensive overkill for VFR flight....
Forum: RV General Discussion/News 06-21-2018, 10:08 PM
Replies: 10
Views: 2,543
Posted By vlittle
4) the simplest and most reliable flap...

4) the simplest and most reliable flap positioning is an (on)-off-on switch (momentary in the down position). I'm not a fan of the flaps positioning systems unless they also dial in trim at the same...
Forum: RV General Discussion/News 06-15-2018, 01:08 PM
Replies: 11
Views: 1,488
Posted By vlittle
Scroll down here...

Scroll down here (http://www.vx-aviation.com/sprocket/empennage.htm) to see what I did. A lot of work.
Forum: Electrical Systems 06-14-2018, 07:03 PM
Replies: 44
Views: 4,631
Posted By vlittle
I still have CK722 transistors and 1N314 diodes. ...

I still have CK722 transistors and 1N314 diodes. Hoping they make a comeback, like vinyl records. Anyone who understands the last sentence is ooold!
Forum: RV General Discussion/News 06-14-2018, 10:11 AM
Replies: 28
Views: 2,697
Posted By vlittle
I would recommend a separate IDENT pushbutton for...

I would recommend a separate IDENT pushbutton for the transponder. Saves key pressess during busy times. I second the motion to have two 10 inch screens.

Consider ditching the backup instruments in...
Forum: RV General Discussion/News 06-09-2018, 07:02 PM
Replies: 11
Views: 1,627
Posted By vlittle
An ON-OFF-ON switch can be made to operate as an...

An ON-OFF-ON switch can be made to operate as an OFF-WIGWAG-ON switch
with the circuit shown in this link (http://vx-aviation.com/sprocket/photos/panel_elec/schematics-2/WWX-1A.pdf). The application...
Forum: RV General Discussion/News 05-30-2018, 05:18 PM
Replies: 194
Views: 72,188
Posted By vlittle
My second airplane is a Harmon Rocket. My third...

My second airplane is a Harmon Rocket.
My third airplane is, however...

http://www.vx-aviation.com/S-21/Wings/IMG_9.jpg
Forum: Electrical Systems 05-30-2018, 08:55 AM
Replies: 261
Views: 21,128
Posted By vlittle
I had Carling switch failures in my RV-9A leading...

I had Carling switch failures in my RV-9A leading to burnt wiring and terminals in 2006. I published a forensic analysis on VAF and Aeroelectric but it is now obscured in the depths of the interweb....
Forum: Glass Cockpit 05-10-2018, 08:32 AM
Replies: 19
Views: 5,613
Posted By vlittle
Update: Here's the PCB assembly. The ESP-32...

Update: Here's the PCB assembly. The ESP-32 processor module has been removed to show the board details. There are two trim motor drivers and a pair of relays for driving flaps.

This board works...
Forum: RV-8/8A 05-01-2018, 07:53 PM
Replies: 31
Views: 4,892
Posted By vlittle
A skid does not require cross-control... that's a...

A skid does not require cross-control... that's a slip.
Try a banked turn at low speed and add inside rudder... now you'll be upside down.
Forum: Glass Cockpit 04-25-2018, 10:45 AM
Replies: 9
Views: 3,390
Posted By vlittle
See this link for a simple external power port to...

See this link for a simple external power port to run a SkyView and charge its battery.

The rest of the aircraft does not power...
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