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Search: Posts Made By: John-G
Forum: RV-12 Yesterday, 09:26 AM
Replies: 29
Views: 1,150
Posted By John-G
Tony - Thanks for setting the record straight...

Tony -

Thanks for setting the record straight regarding the trim motor's electrical connection revision history. I had forgotten that spade connectors were used on the very early RV-12's. My...
Forum: RV-12 12-12-2018, 09:58 AM
Replies: 29
Views: 1,150
Posted By John-G
Bob- Sweet! Glad it was an easy fix and you are...

Bob-

Sweet! Glad it was an easy fix and you are back to normal.

Those "legacy" connectors at the tail cone have been notorious for creating unwanted trim motor problems.

As previously mentioned,...
Forum: COMM 12-08-2018, 07:58 PM
Replies: 4
Views: 245
Posted By John-G
Jim- Try this easy suggestion ... Make up a pair...

Jim-

Try this easy suggestion ... Make up a pair of jumpers ..... Connect one end to a good ground and the other end to the coax making sure to ground both the BNC and the center pin together. Do...
Forum: RV-12 12-08-2018, 10:44 AM
Replies: 29
Views: 1,150
Posted By John-G
Bob -- I don't agree with your assessment of...

Bob --

I don't agree with your assessment of your trim display situation. Being an avid daily reader here on the forums for the last 7 years, I can't remember reading about a D180 software revision...
Forum: RV-12 11-27-2018, 09:44 AM
Replies: 15
Views: 1,135
Posted By John-G
Mike- Congratulations on your new...

Mike-

Congratulations on your new bird!

Regarding your heavy left wing ... I too had a slightly heavy left wing. As previously mentioned, before getting draconian on the flaperons ... first check...
Forum: RV General Discussion/News 11-27-2018, 08:48 AM
Replies: 9
Views: 1,105
Posted By John-G
Romanov- As you, I made a similar spray box ......

Romanov-

As you, I made a similar spray box ... with the addition of two box fans and filters to suck the spray gun over-spray down.

All worked well for a few priming sessions until the dried...
Forum: RV-12 11-19-2018, 03:19 PM
Replies: 15
Views: 3,431
Posted By John-G
Randy - To be clear ... the rivets called out to...

Randy -

To be clear ... the rivets called out to rivet the wing walk doubler on earlier "legacy" versions of the RV-12 were originally the low dome LP4-3 rivets.

Apparently Van's has changed the...
Forum: COMM 11-05-2018, 10:27 AM
Replies: 4
Views: 545
Posted By John-G
Jim, If you are talking about the Garmin GTR 200...

Jim,

If you are talking about the Garmin GTR 200 radio, have a look at the GTR 200 Pilot Guide Rev C Page 9. There you will see a menu setting for Com ICS Mute. When set to "On", intercom...
Forum: RV-12 10-31-2018, 09:00 AM
Replies: 13
Views: 1,394
Posted By John-G
Jim- I purchased the Odyssey OBC-12A charger...

Jim-

I purchased the Odyssey OBC-12A charger which is Odyssey's 12 amp smart charger with various modes used during battery charging and have found it very capable of keeping the battery from...
Forum: RV-12 10-25-2018, 07:40 AM
Replies: 5
Views: 740
Posted By John-G
+1 for the 9 volt battery I used a couple of...

+1 for the 9 volt battery

I used a couple of test leads with small alligator clips on the ends attached to a 9 volt battery and tested each light one at a time for a few moments to check continuity...
Forum: RV-12 10-19-2018, 09:12 AM
Replies: 6
Views: 1,024
Posted By John-G
Tom- As mentioned by others, to make the install...

Tom-

As mentioned by others, to make the install easier you will want the new mounting bracket. The new bracket uses the same mounting locations above the radio that were used to mount the 470 unit....
Forum: RV Building Tips/Techniques 10-16-2018, 08:32 AM
Replies: 19
Views: 1,879
Posted By John-G
Had great results with the Jet Flex water...

Had great results with the Jet Flex water reducible paint as well ... and would use it again if doing another interior. The only down side is the paint will take many days to reach full hardness so...
Forum: RV-12 10-15-2018, 07:36 AM
Replies: 3
Views: 593
Posted By John-G
Don't remember countersinking the push tubes for...

Don't remember countersinking the push tubes for that rivet.
Forum: COMM 10-09-2018, 02:20 PM
Replies: 2
Views: 681
Posted By John-G
Jim, Just for kicks ... have your friend remove...

Jim,

Just for kicks ... have your friend remove the radio and reinsert it a couple of times (with master switch off of course).

My first thought was a possible a power drop on Pin 1 going into the...
Forum: RV-12 10-02-2018, 09:29 AM
Replies: 20
Views: 2,167
Posted By John-G
Tacco - I flew the bird for the first flight and...

Tacco -

I flew the bird for the first flight and it was quite a rewarding experience. However, I did spend quite a bit of time receiving transition training at Scanlon Aviation in Novato California...
Forum: Autopilots 09-12-2018, 12:19 PM
Replies: 9
Views: 769
Posted By John-G
JB - Suggest you have a look at Autopilot Servo...

JB -

Suggest you have a look at Autopilot Servo Calibration and Test Procedures beginning at page 10-16 in the Dynon SkyView instillation manual for version 15.3. You will find a calibration...
Forum: RV-12 09-09-2018, 08:21 AM
Replies: 14
Views: 1,923
Posted By John-G
Dale- Glad to hear you got the pump working...

Dale-

Glad to hear you got the pump working after a couple of raps to the body.

Best guess is a small amount of crud jammed oscillating piston in the pump. Could have been a tiny piece of Proseal...
Forum: RV-12 09-08-2018, 08:22 AM
Replies: 14
Views: 1,923
Posted By John-G
Dale - This is not uncommon and has happened to...

Dale -

This is not uncommon and has happened to a handful of other RV-12 owners. Before running out and replacing the pump, first try to rap on the top of the pump with a screwdriver handle or a...
Forum: RV-12 09-06-2018, 07:58 AM
Replies: 13
Views: 2,956
Posted By John-G
Steve - Getting a good crimp on the tiny pins...

Steve -

Getting a good crimp on the tiny pins used for the trim motor's Molex connector can be problematic ... as a review of past VAF posts will reveal. Fortunately, I had tiny jaws for my crimping...
Forum: RV-14 09-02-2018, 10:33 AM
Replies: 6
Views: 803
Posted By John-G
Allan - I built a RV-12 with an ACK ELT so this...

Allan - I built a RV-12 with an ACK ELT so this may not apply to your situation .... but the experience I had with the Van's supplied cable is it was the wrong type and did not work correctly with...
Forum: RV-12 09-02-2018, 08:49 AM
Replies: 5
Views: 1,198
Posted By John-G
Hans ---- Yep, the cotter-pins are longer than...

Hans ---- Yep, the cotter-pins are longer than straight in access will allow. It is necessary to bend the cotter-pin a bit to create a slight crescent moon shape to allow the cotter-pin to clear the...
Forum: RV-12 09-01-2018, 10:58 PM
Replies: 4
Views: 774
Posted By John-G
Rod ... since you have removed the ELT for...

Rod ... since you have removed the ELT for inspection ... as Joe has pointed out, make sure the removed connection is not causing the GPS position source wire run back to the ELT to become...
Forum: RV General Discussion/News 08-28-2018, 10:13 AM
Replies: 19
Views: 2,790
Posted By John-G
Hey Jim .... Just another thought that may work...

Hey Jim .... Just another thought that may work well for you so you don't need to fly with the airplane rigged slightly off to compensate for your heavy wing.

When I first flew my RV-12 I had a...
Forum: RV-12 08-27-2018, 01:18 PM
Replies: 5
Views: 1,095
Posted By John-G
You will want to install the the AP servos ......

You will want to install the the AP servos ... they are worth every penny. Can't speak for the Garmin install, but the Dynon AP integrated into the SkyView is robust and full featured. It is just...
Forum: RV-12 08-27-2018, 09:03 AM
Replies: 5
Views: 1,095
Posted By John-G
Brandon - Myself and others have held off on...

Brandon -

Myself and others have held off on attaching the tail cone until late in the build. I actually brought the tail cone close to the fuselage and canted it at an angle so I could sit on a...
Forum: RV-12 08-20-2018, 07:43 AM
Replies: 18
Views: 2,528
Posted By John-G
Congratulations Ron!!! Job well done! Please...

Congratulations Ron!!! Job well done! Please post some engine/flight data points when you have enough time on your RV-12 to make assessments.
Forum: RV-12 08-18-2018, 09:39 PM
Replies: 13
Views: 1,958
Posted By John-G
Mike ... don't remember there being a washer on...

Mike ... don't remember there being a washer on the magnetic plug. A quick look at the illustrated parts catalog will verify that I'm pretty sure.
Forum: RV-12 08-17-2018, 07:36 AM
Replies: 12
Views: 1,928
Posted By John-G
E.D. - Don't hold me to this but I could swear I...

E.D. - Don't hold me to this but I could swear I read (albeit quite a while back) that Van's provided a builder with a panel section that was just the blank panel prior to the cutouts being made.

I...
Forum: RV-12 08-13-2018, 09:50 AM
Replies: 145
Views: 22,831
Posted By John-G
RJTJRT - To answer your question ... there are...

RJTJRT - To answer your question ... there are six bolts that sandwich the two prop blades between the prop hubs and each bolt uses a Nord-Lock washer.
Forum: RV Building Tips/Techniques 08-07-2018, 09:52 AM
Replies: 10
Views: 1,162
Posted By John-G
I had good luck documenting my build using...

I had good luck documenting my build using Blogger.com for my free WEB based Blog solution. However, I do pay a $10 per year registration fee so I can have my own WEB address for my builder's...
Forum: RV-12 08-02-2018, 08:53 AM
Replies: 145
Views: 22,831
Posted By John-G
Yes, the Nord-Lock washers used for the prop are...

Yes, the Nord-Lock washers used for the prop are a larger OD than the ones normally associated with that size bolt head. I found this out the hard way when I went to a large nut & bolt supplier...
Forum: RV-12 08-01-2018, 08:12 AM
Replies: 8
Views: 1,663
Posted By John-G
Congratulations Mike .... The "RV smile" says it...

Congratulations Mike .... The "RV smile" says it all.
Forum: RV-12 07-30-2018, 08:42 AM
Replies: 47
Views: 16,000
Posted By John-G
For another data point ... I used Loctite 567 on...

For another data point ... I used Loctite 567 on the aluminum fittings that screw into the RV-12's brake master cylinders and had multiple leaks which after removing /cleaning/reapplication of the...
Forum: RV-12 07-25-2018, 03:02 PM
Replies: 5
Views: 1,098
Posted By John-G
E. D. --- I can't give you any info regarding a...

E. D. ---

I can't give you any info regarding a second EFIS because I installed inexpensive backup steam gauges ... but I did add a second landing light to have wig-wag to take advantage of that...
Forum: RV-12 07-12-2018, 08:05 PM
Replies: 145
Views: 22,831
Posted By John-G
During my first annual last year I of course...

During my first annual last year I of course removed the prop for inspection and noticed the Nord-Lock washers no longer had sharp edges to the tooth pattern ... they had become rounded so I did not...
Forum: RV-12 07-04-2018, 11:39 AM
Replies: 15
Views: 3,561
Posted By John-G
Plexiglass cleaner caution

Don,

I have been having very good results just cleaning the canopy with a mixture of Dawn dish washing detergent and water. I use two microfiber cloths one soaked with a Dawn + distilled water...
Forum: RV-12 07-03-2018, 10:00 AM
Replies: 28
Views: 3,908
Posted By John-G
I attend Oshkosh almost every year so sometimes...

I attend Oshkosh almost every year so sometimes things seem to run together .... the RV-12 get together I was referring to was at the brand new pavilion that was built at homebuilt camping. Believe...
Forum: RV-12 07-03-2018, 08:59 AM
Replies: 28
Views: 3,908
Posted By John-G
If this years RV-12 builders gathering ends up...

If this years RV-12 builders gathering ends up being on Tuesday, you can count me in ... there was a nice gathering last year.

Happy RV-12ing,
Forum: RV General Discussion/News 06-28-2018, 08:49 AM
Replies: 19
Views: 2,973
Posted By John-G
Oliver, Curious ... did you seal all the...

Oliver,

Curious ... did you seal all the pinholes in the cowling prior to applying the vinyl wrap?

A friend vinyl wrapped his RV-9 and has had no issues ... after the initial learning curve of the...
Forum: RV-12 06-27-2018, 09:48 AM
Replies: 4
Views: 818
Posted By John-G
Ken, If you call Matco they will know what parts...

Ken,

If you call Matco they will know what parts they sell to Van's for the RV-12.

I have purchased items from their booth at Oshkosh and they knew what I needed for the RV-12.

Edit: Just returned...
Forum: RV-12 06-27-2018, 08:43 AM
Replies: 4
Views: 818
Posted By John-G
Ken, The wheel assemblies on the RV-12 are...

Ken,

The wheel assemblies on the RV-12 are manufactured by Matco and Section 4 of the builder instructions shows the following part numbers.

Nose wheel assembly is part number WHLNW51CC G25

The...
Forum: RV-12 06-13-2018, 10:22 PM
Replies: 5
Views: 1,317
Posted By John-G
I wouldn't think running spare wires in...

I wouldn't think running spare wires in anticipation of making a wiring change after phase one flight testing is completed would be a problem. That is as long as at the time of ELSA certification the...
Forum: RV-12 06-13-2018, 10:20 AM
Replies: 5
Views: 1,317
Posted By John-G
E.D. For starters you will want to run the same...

E.D.

For starters you will want to run the same amount of wiring that is used on the right landing light for the additional left landing light.

In addition to that, you will need to run one...
Forum: RV-12 05-29-2018, 07:18 AM
Replies: 4
Views: 973
Posted By John-G
EastCoast, The info you are looking for is in...

EastCoast,

The info you are looking for is in section 5-14. There you will see the torques for the aluminum fittings listed. There is also a section in the red Aircraft Standards handbook that comes...
Forum: RV-12 05-26-2018, 08:52 AM
Replies: 7
Views: 1,554
Posted By John-G
Maveric- Somewhere here in the forums there was...

Maveric-

Somewhere here in the forums there was a post about static generated during cleaning of the aircraft setting off the ACK E-04. Apparently ACK was questioned and said to install an in-line...
Forum: Tools 05-23-2018, 09:01 AM
Replies: 8
Views: 2,128
Posted By John-G
David, If you are building your airplane in a...

David,

If you are building your airplane in a garage or location where the space is limited, consider placing locking wheels under your workbenches, power tool bench, parts racks, ect. it really...
Forum: RV-12 05-16-2018, 08:36 AM
Replies: 18
Views: 3,288
Posted By John-G
PEB- I ordered the ScotchBrite wheel from...

PEB-

I ordered the ScotchBrite wheel from Aircraft Spruce many years ago and the ACS part number is 12-00875. The wheel is 6" and is the 7A medium grade with a 1/2" thru hole ... works great with...
Forum: RV-12 05-16-2018, 08:01 AM
Replies: 18
Views: 3,288
Posted By John-G
David- One tool that you will be glad you owned...

David-

One tool that you will be glad you owned for the entire project is a band saw. Many of the parts from Van's come with more than one part made from the same strip of metal and they need to be...
Forum: RV General Discussion/News 05-14-2018, 07:27 AM
Replies: 19
Views: 1,762
Posted By John-G
Bob, I wanted better grounding for my RV-12 so...

Bob,

I wanted better grounding for my RV-12 so while building (E-AB) I decided to purchase grounding blocks from B & C. I chose GB24/24 grounding blocks and installed them on both sides of the...
Forum: RV-12 05-08-2018, 08:13 AM
Replies: 30
Views: 5,801
Posted By John-G
Paul, Nice looking bird Paul! Truly like the...

Paul,

Nice looking bird Paul! Truly like the overall paint scheme ... well done!

Happy flying,
Forum: RV-12 05-08-2018, 08:02 AM
Replies: 6
Views: 1,570
Posted By John-G
Mark - As Tom mentioned, Van's made a change to...

Mark -

As Tom mentioned, Van's made a change to the exhaust system that moves the muffler further aft from the oil cooler. To be clear, changing over to the new muffler design not only requires a...
Forum: RV-12 05-05-2018, 09:18 AM
Replies: 11
Views: 2,169
Posted By John-G
Looking back, this seems to be a reoccurring...

Looking back, this seems to be a reoccurring spring/early summer theme. There are many posts here sharing similar symptoms. Yes, the carb floats and fuel pumps have been a big issue in the past and...
Forum: RV General Discussion/News 05-02-2018, 08:54 AM
Replies: 5
Views: 747
Posted By John-G
Thanks

Thanks for the input guys … truly appreciated.

A few weeks back I had looked over the FltPlan GO manuals for both the iPad and Android versions and read that iPad version supported the Dynon...
Forum: RV General Discussion/News 04-30-2018, 11:07 AM
Replies: 5
Views: 747
Posted By John-G
Help with Android based flight planner that saves plans as .GPX flles

The mission: Main goal is finding an Android based full featured flight planning app that allows saving the flight plan in a .GPX format so the flight plan file can be transferred to a USB flash...
Forum: Tools 04-18-2018, 08:54 AM
Replies: 5
Views: 758
Posted By John-G
Mike, To answer your question ... yes. As an...

Mike,

To answer your question ... yes.

As an example … if you are attempting to set a AN470AD4 rivet you would want to first use the 4 cutout on a rivet length gauge (not shown in your original...
Forum: RV General Discussion/News 03-29-2018, 09:34 AM
Replies: 16
Views: 1,819
Posted By John-G
Insurance non-coverage doughnut hole

I just want to mention what happened with my RV-12 build so fellow builders don't get caught in a catch 22 as I did.

I had purchased builders insurance and "assumed" it would cover the build until...
Forum: RV-12 03-07-2018, 08:42 AM
Replies: 5
Views: 1,078
Posted By John-G
Tom, On the older wire harness the bands are...

Tom,

On the older wire harness the bands are located approximately 23" and 62" from the end of the connector. That should get you in the ballpark. I had the same problem as you in that my red bands...
Forum: RV-12 02-12-2018, 08:33 AM
Replies: 13
Views: 6,133
Posted By John-G
Ben- It is like most things ... if there is a...

Ben- It is like most things ... if there is a will there is a way. That said, I think you could perform the necessary steps if you are really careful and have lots patience. However, my vote is make...
Forum: RV-12 02-09-2018, 07:48 AM
Replies: 19
Views: 3,010
Posted By John-G
John - I would be curious to know if the hose...

John -

I would be curious to know if the hose clamps were changed at the time the hoses were replaced. The factory Rotax hose clamps are a constant tension type that expand and contract with the...
Forum: RV-12 02-04-2018, 07:24 AM
Replies: 6
Views: 937
Posted By John-G
Rob- Don't remember there being an issue with a...

Rob-

Don't remember there being an issue with a gap where the skins overlap on the flaperons.

Have you checked to make sure the flanges on the ribs are not slightly over-bent or under-bent by...
Forum: RV General Discussion/News 01-20-2018, 08:44 AM
Replies: 4
Views: 1,198
Posted By John-G
I ran into this very exact issue. I had...

I ran into this very exact issue. I had (incorrectly) assumed that the builder policy would remain in effect until I received the airworthiness certificate. So a couple of weeks prior to the AW...
Forum: RV General Discussion/News 01-17-2018, 03:11 PM
Replies: 763
Views: 162,446
Posted By John-G
Steve- First the disclaimer …. don’t own a 3D...

Steve-
First the disclaimer …. don’t own a 3D printer and know nothing about creating 3D CAD drawings, but I’m very interested in learning more about the process so have been watching this...
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