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Search: Posts Made By: johnbright
Forum: RV Building Tips/Techniques 06-29-2022, 07:26 PM
Replies: 34
Views: 2,128
Posted By johnbright
My VAF search

I haven’t done it yet but looks like good info here: https://vansairforce.net/community/showthread.php?t=133761

And post 6 of that thread has this link:...
Forum: Traditional Aircraft Engines 06-27-2022, 09:16 AM
Replies: 6
Views: 445
Posted By johnbright
W prefix in Aeroshell world is with AD additives

To clarify... W prefix in Aeroshell world is with ashless dispersant additives. Aeroshell W100 is single-grade aka straight-weight and with AD additives.

The term "straight" is slang with at least...
Forum: RV-14 06-15-2022, 07:01 AM
Replies: 17
Views: 1,405
Posted By johnbright
fuse versus ANL current limiter

Don't confuse a fuse with a Bussmann ANL current limiter. A Bussmann ANL current limiter takes much more energy to blow and can be sized the same as alternator output capability. Other products may...
Forum: RV-14 06-14-2022, 08:26 PM
Replies: 17
Views: 1,405
Posted By johnbright
B Lead protection

Plane Power calls it a “30-amp circuit protection device”.

The scenarios where B Lead protection is required is an internal short to ground in the alternator or the B Lead shorts to ground. The...
Forum: RV-14 06-14-2022, 07:30 PM
Replies: 17
Views: 1,405
Posted By johnbright
vacuum-pad alternator output

I made a table of vacuum-pad alternator current output capability vs RPM.

Plane Power is not listed because I have not found that...
Forum: Electrical Systems 05-17-2022, 08:57 PM
Replies: 61
Views: 6,238
Posted By johnbright
Hi Bill, Question, does the generator run at the...

Hi Bill,

Question, does the generator run at the RPM of the coupling or is there a gearbox inside to increase RPM. A question from the Aeroelectric List.
.
Forum: RV General Discussion/News 05-12-2022, 02:36 PM
Replies: 35
Views: 3,053
Posted By johnbright
Speaking of utility sinks, I: Hung mine from...

Speaking of utility sinks, I:

Hung mine from the wall for sweeping access under rather than giving it legs and put it at bench height because it is next to a bench.
Used a kitchen type pull down...
Forum: RV General Discussion/News 05-10-2022, 07:55 PM
Replies: 35
Views: 3,053
Posted By johnbright
full chip epoxy floor

AFAIK a full chip epoxy floor is the most durable.
Forum: Electrical Systems 05-10-2022, 07:18 PM
Replies: 61
Views: 6,238
Posted By johnbright
Hi Bill, Question… does it work well if the...

Hi Bill,

Question… does it work well if the battery becomes disconnected?
.
Forum: RV General Discussion/News 05-09-2022, 08:36 PM
Replies: 18
Views: 3,326
Posted By johnbright
Superextrafantabulous!

Superextrafantabulous!
Forum: Electrical Systems 05-07-2022, 09:11 AM
Replies: 5
Views: 1,022
Posted By johnbright
BTW the rocker pieces can be...

BTW the rocker pieces can be replaced/relabeled.

https://www.steinair.com/product/aml-34-series-rocker-switch/
Forum: Primers 04-29-2022, 10:33 AM
Replies: 7
Views: 1,035
Posted By johnbright
closet shelf and furnace fan

I used a 20" closet shelf and a discarded furnace fan.
.
Forum: Electrical Systems 04-20-2022, 06:07 AM
Replies: 16
Views: 1,895
Posted By johnbright
Re Posts 15 and 17

Re Post #15... I see what you mean Bill re FMEA - screw to the outside of the case is hot depending on B+ to Line or Load and CB open or closed. Looks like hot screw shorting to ground does not trip...
Forum: Electrical Systems 04-18-2022, 07:11 PM
Replies: 16
Views: 1,895
Posted By johnbright
Mich48041/Joe Gores and Bob Nuckolls are in...

Mich48041/Joe Gores and Bob Nuckolls are in agreement that Line and Load can be reversed in the OP's case.

I was curious so I asked on AeroElectric List. Link...
Forum: RV-7/7A 04-16-2022, 09:08 PM
Replies: 3
Views: 331
Posted By johnbright
MD-42-BS

RV-6 shows MD-42-BS for all six control horn rivets, 1/8" diameter. MSP-42 works for this application per a VAF posting, no harm verifying with Vans.
.
Forum: My RV Build Project 04-16-2022, 09:32 AM
Replies: 86
Views: 36,395
Posted By johnbright
oscillating multi tool

I cut the canopy with a cutoff wheel but by the time I got to the engine cowl I found out about oscillating multi tools, many brands available. Works great on fiberglass, less dangerous than cutoff...
Forum: Rocket 03-27-2022, 08:09 PM
Replies: 5
Views: 648
Posted By johnbright
top injector points

You could mount the injectors in the top injector ports of the cylinder head using SDS hardware.
Forum: Traditional Aircraft Engines 03-19-2022, 07:24 PM
Replies: 22
Views: 1,683
Posted By johnbright
hgerhardt reports >900 hours currently and still...

hgerhardt reports >900 hours currently and still dry with power steering return hose and constant-force clamps.

https://vansairforce.net/community/showpost.php?p=1185599&postcount=3
.
Forum: RV General Discussion/News 03-07-2022, 09:16 PM
Replies: 13
Views: 1,424
Posted By johnbright
Note the Z schematic templates in the...

Note the Z schematic templates in the Aeroelectric Connection book are not the latest. Latest ones are in the “Adobe…” folder here. (http://www.aeroelectric.com/PPS/)

Also, there’s an...
Forum: RV-14 03-07-2022, 08:52 PM
Replies: 5
Views: 920
Posted By johnbright
B&C “20 A” alternator

BTW the B&C “20 A” alternator is capable of 30 A at cruise RPM on a Lycoming.

My vacuum-pad alternator summary here. (https://vansairforce.net/community/showpost.php?p=1581613&postcount=21)

PS: Bob...
Forum: Electrical Systems 03-07-2022, 06:50 PM
Replies: 10
Views: 1,720
Posted By johnbright
A “mini ANL” is a fuse, not an ANL current limiter - size accordingly

I’ve studied the data sheets for Bussmann ANL current limiters and Littelfuse MAXI, MIDI, and ATO/ATOF fuses.

These are my thoughts and conclusions; hope they’re helpful.

A Littelfuse MIDI or a...
Forum: RV Ongoing Maintenance Issues 03-06-2022, 05:28 PM
Replies: 11
Views: 1,220
Posted By johnbright
AN5814 electrical resistance

Not AN5812 (stubby) but rather AN5814 (long):


Bob Nuckolls measured heater resistance indirectly (measure current and voltage, calculate resistance) and got 280 mΩ at room temperature. Resistance...
Forum: RV Ongoing Maintenance Issues 03-05-2022, 02:58 PM
Replies: 10
Views: 1,658
Posted By johnbright
PVC pipe winch

In case this is helpful.

https://photos.app.goo.gl/n8mysr5Xdpu1KLzK9 is my google album of photos downloaded from this post....
Forum: Electrical Systems 02-28-2022, 08:19 PM
Replies: 28
Views: 2,107
Posted By johnbright
DSS2x61-0045A

Newark says they will have 43 each DSS2x61-0045A arriving on 5/18 and they have the 401K heat sink. Looks like you can back order and they reserve it.

You need a dab of thermal paste between diode...
Forum: Electrical Systems 02-28-2022, 06:15 PM
Replies: 28
Views: 2,107
Posted By johnbright
Sorry but B&C does not call theirs a Schottky but...

Sorry but B&C does not call theirs a Schottky but simply Essential Bus Diode. The latest Z schematic, Z101, calls it NTE53016 or equivalent, it’s a silicone diode bridge rectifier commonly used in...
Forum: Electrical Systems 02-28-2022, 05:10 PM
Replies: 28
Views: 2,107
Posted By johnbright
Bob Nuckolls has a document on that, Switch...

Bob Nuckolls has a document on that, Switch Ratings, What's it all Mean? (http://www.aeroelectric.com/articles/Switch_Ratings.pdf) “In a nutshell, 125 VAC ratings equate favorably and conservatively...
Forum: RV General Discussion/News 02-28-2022, 03:58 PM
Replies: 1
Views: 578
Posted By johnbright
ACCESS PANEL KIT

Vans PN "ACCESS PANEL KIT"

On backorder at the moment though.
.
Forum: RV Ongoing Maintenance Issues 02-25-2022, 08:41 PM
Replies: 29
Views: 62,740
Posted By johnbright
Mike Busch webinar

Like the OP I watched a Mike Busch webinar. Hope my notes (https://docs.google.com/document/d/1GLOeiKppw0weBq4f0p5WtegCR661x6NDLiXFEpT3CH8/edit) are useful.
.
Forum: Electrical Systems 02-24-2022, 08:51 PM
Replies: 21
Views: 1,829
Posted By johnbright
Latest Aeroelectric Connection

BTW the latest Aeroelectric Connection is here. (http://www.aeroelectric.com/Books/Connection/)

And the latest Z templates are here. (http://www.aeroelectric.com/PPS/Adobe_Architecture_Pdfs/) Z101...
Forum: Electrical Systems 02-24-2022, 08:16 PM
Replies: 51
Views: 9,145
Posted By johnbright
redundancy and connector current capacity

Two reasons for dual (or triple or more) connections that I know of:

Redundancy:

For instance B&C shows dual ground connections for LR3 and SB1 regulators, one to connector and one to stud on...
Forum: Electrical Systems 02-23-2022, 11:03 AM
Replies: 51
Views: 9,145
Posted By johnbright
not just P1001

Note this applies to P1001, P1003, and P1004 of the GTN 650/750. In the case of the comm, P1003, three terminals are used because the comm draws more current.
.
Forum: RV-10 02-21-2022, 07:28 PM
Replies: 6
Views: 544
Posted By johnbright
G3X has trim speed control

https://vansairforce.net/community/showthread.php?t=165660
Forum: RV-10 02-21-2022, 04:37 PM
Replies: 6
Views: 544
Posted By johnbright
electric elevator trim is standard on -10, -12, -14

I'm not a -10 builder but electric elevator trim is standard on the RV-10, -12, and -14 so I would assume the servo will come with your empennage kit.

FYI Vans PN "ES MSTS-T3-12A" is the servo only...
Forum: Traditional Aircraft Engines 02-11-2022, 04:13 PM
Replies: 39
Views: 13,198
Posted By johnbright
power steering hose and spring clamps

I found this post (https://vansairforce.net/community/showpost.php?p=1185599&postcount=3) where hgerhardt reported 700 hours no leaks.
.
Forum: Electrical Systems 02-11-2022, 03:50 PM
Replies: 51
Views: 9,145
Posted By johnbright
All my electrical files are here....

All my electrical files are here. (https://drive.google.com/drive/folders/1u6GeZo6pmBWsKykLNVQMvu4o1VEVyP4K?usp=sharing)

In folder 1):

"Elec Schem N1921R Z101..." is the top-level power...
Forum: Electrical Systems 02-10-2022, 07:35 PM
Replies: 19
Views: 1,614
Posted By johnbright
Current limiter location

Looks like you have the current limiters at the alternator B terminals. They should be as close as possible to the contactor.
Forum: RV Ongoing Maintenance Issues 02-01-2022, 08:39 AM
Replies: 17
Views: 2,843
Posted By johnbright
Re post #1: If the alternator is...

Re post #1:

If the alternator is externally-regulated as shown, main alternator output voltage will rise by the diode voltage drop.
Bob Nuckolls would limit the endurance bus feed diode to 7-1/2 A...
Forum: RV Ongoing Maintenance Issues 01-30-2022, 05:09 PM
Replies: 8
Views: 1,155
Posted By johnbright
axial strength

The spec sheets for steel plate nuts K1000/MS21047 and K2000/MS21051 show the same axial strength as steel nylock nuts AN365/MS21044.

OTOH ref the next post by scsmith.
.
Forum: RV Ongoing Maintenance Issues 01-28-2022, 07:29 PM
Replies: 17
Views: 2,843
Posted By johnbright
Aeroelectric List

I would ask on the Aeroelectric List, Bob Nuckolls hangs out there.
Forum: Electrical Systems 01-27-2022, 06:39 AM
Replies: 7
Views: 857
Posted By johnbright
SteinAir

You can search SteinAir for "twisted wire".
Forum: GPS 01-24-2022, 09:34 PM
Replies: 6
Views: 674
Posted By johnbright
Reflow

If it were me, I would reflow those joints unless you have confirmed the problem to be in the plug. The photo is not crystal clear but they look questionable IMO, maybe they were hand soldered at...
Forum: RV General Discussion/News 01-24-2022, 08:22 PM
Replies: 2
Views: 1,059
Posted By johnbright
Thanks for the heads-up

Not just CAD dwgs… scans of hand-drawn dwgs… and the construction manual also.

And I didn’t know you could subscribe to service information and revisions for your aircraft.

BTW, the only way I see...
Forum: Traditional Aircraft Engines 01-12-2022, 09:58 AM
Replies: 31
Views: 3,854
Posted By johnbright
my Mike Busch notes

I learned a lot by reading BOB is the Oil Guy’s Motor Oil University series of seven chapters (https://bobistheoilguy.com/motor-oil-101/) and updated and corrected my notes,...
Forum: Electrical Systems 01-11-2022, 06:09 PM
Replies: 23
Views: 3,251
Posted By johnbright
vacuum pad alternator current capability summary

Vacuum pad alternator current capability summary ref attached image.

AFAIK, wound-field alternators are normally rated at 5,000 alternator RPM so they can't reach rated output on the vacuum pad.
.
Forum: Electrical Systems 01-09-2022, 06:43 PM
Replies: 19
Views: 2,407
Posted By johnbright
LR3 as backup regulator.

I know it's thread drift but some clarification.

Be aware the setpoints of both the LR3 and SB1 regulators are field adjustable.

Bob Nuckolls does not recommend SB1 "for simple dual alternator...
Forum: Electrical Systems 01-09-2022, 06:18 PM
Replies: 19
Views: 2,407
Posted By johnbright
vacuum pad alternator output

I made a summary of vacuum pad alternator current output from the spec sheets.

https://vansairforce.net/community/showpost.php?p=1581613&postcount=21
Forum: Traditional Aircraft Engines 01-09-2022, 04:07 PM
Replies: 31
Views: 3,854
Posted By johnbright
my Mike Busch notes

In case my Mike Busch notes are helpful.

https://docs.google.com/document/d/1GLOeiKppw0weBq4f0p5WtegCR661x6NDLiXFEpT3CH8/edit?usp=sharing
Forum: RV-6/6A 12-29-2021, 12:44 PM
Replies: 4
Views: 791
Posted By johnbright
RV-6:...

RV-6: https://drive.google.com/file/d/1MgaK-_dv-Y1kC1vrXnpfPOCJrxcVwa5g/view?usp=sharing

RV-7, 9: https://drive.google.com/file/d/1u37c6n3U8_CsKexsd8XafRVv8mqwsolc/view?usp=sharing
Forum: RV-14 12-23-2021, 03:17 PM
Replies: 69
Views: 30,246
Posted By johnbright
Earlier post in this thread:...

Earlier post in this thread: https://vansairforce.net/community/showpost.php?p=1485415&postcount=32
Forum: Glass Cockpit 12-19-2021, 01:53 PM
Replies: 9
Views: 1,014
Posted By johnbright
Does this...

Does this help?

http://www.aeroelectric.com/articles/minibus/minibus.html
Forum: Electrical Systems 11-29-2021, 09:51 PM
Replies: 17
Views: 2,896
Posted By johnbright
I use Autodesk Eagle, free edition

I use Autodesk Eagle, free edition. PDF examples in my files linked in my signature.
Forum: RV-6/6A 11-20-2021, 08:40 PM
Replies: 11
Views: 1,942
Posted By johnbright
RV-6 slider went to square side tubes maybe in...

RV-6 slider went to square side tubes maybe in 2001, same PN… WD-640. RV-7 uses WD-640 also per dog 42 R1 dated 2001.
Forum: RV General Discussion/News 11-09-2021, 04:15 PM
Replies: 3
Views: 1,607
Posted By johnbright
Vetterman install instructions and photos

Here (https://drive.google.com/drive/folders/11qJQcBr09BPa1q72-R2bjdCqUUpB-0tF?usp=sharing) are the Vetterman and Robins Wings (heat muff) install instructions I received and some photos to explain...
Forum: My RV Build Project 11-09-2021, 12:08 PM
Replies: 205
Views: 122,731
Posted By johnbright
Yes! A single engine to firewall ground is an...

Yes! A single engine to firewall ground is an SPOF for your dual alternators.
.
Forum: Mid-Atlantic 11-08-2021, 04:09 PM
Replies: 4
Views: 623
Posted By johnbright
try contacting EAA 339

John Andre is in the know re DARs for Hampton Roads. John's phone number is on the EAA 339 website here. (https://chapters.eaa.org/eaa339/technical-counselors)
.
Forum: RV Ongoing Maintenance Issues 08-29-2021, 03:10 PM
Replies: 12
Views: 1,818
Posted By johnbright
Aircraft Spruce and McMaster are inexpensive sources

A chain of specifications:
Cleveland Parker o-ring PN 101-02300 cross-references to MS28775-218 where dimensions are given. (Ref Aircraft Spruce here...
Forum: RV General Discussion/News 08-28-2021, 08:04 PM
Replies: 4
Views: 1,519
Posted By johnbright
Aeroelectric List

I would ask this on the Matronics Aeroelectric List.
Forum: Electrical Systems 08-27-2021, 07:17 PM
Replies: 14
Views: 2,666
Posted By johnbright
Aeroelectric links

I feel your pain, that’s why I created a list of links to Bob Nuckolls’ stuff (https://docs.google.com/document/d/1iR03DwNeHZy8hO7xBtALPb4_Tl0EY3OdZnAEIxpfMVY/edit). Doesn’t solve that the...
Forum: Electrical Systems 08-14-2021, 08:42 PM
Replies: 10
Views: 1,977
Posted By johnbright
And understand the AH capacity of an old battery...

And understand the AH capacity of an old battery is not measured by its ability to crank the engine.
Forum: Traditional Aircraft Engines 08-14-2021, 07:59 PM
Replies: 9
Views: 1,375
Posted By johnbright
OP’s photo links give me Error 404. This RV at...

OP’s photo links give me Error 404.

This RV at SunNFun 2021 fixed a left/right cooling issue with a center baffle. IIRC the owner doesn’t know why it works. Sorry I didn’t get the tail number. Nor...
Forum: Electrical Systems 08-14-2021, 06:36 PM
Replies: 10
Views: 1,977
Posted By johnbright
Re Dual Alt, Dual Batt power schematic of post...

Re Dual Alt, Dual Batt power schematic of post #1.

By battery failure do you mean the battery goes open circuit? An open battery is a benign failure in flight discovered at the next preflight. I...
Forum: RV-6/6A 07-25-2021, 08:56 PM
Replies: 11
Views: 2,160
Posted By johnbright
Maybe the flap control box is not seeing the...

Maybe the flap control box is not seeing the extend micro switch, the two white wires.
Forum: RV-6/6A 07-19-2021, 10:41 AM
Replies: 11
Views: 2,160
Posted By johnbright
OP-10 is wiring diagram RV-6, 7, 8, 9

I vote for fixing the ShowPlanes system but if it's the wiring diagram you are looking for it's OP-10 on your RV-6 thumbdrive. It shows a DPDT (on)-off-(on) switch.
Forum: Electrical Systems 07-06-2021, 11:25 AM
Replies: 29
Views: 4,415
Posted By johnbright
Correct... 18 awg fuselink to protect 14 awg...

Correct... 18 awg fuselink to protect 14 awg feeder.

Pico PN 5555PT is single piece 8" long. 8123PT is 8' long for only $1 more.
.
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