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Search: Posts Made By: WingedFrog
Forum: RV-12 04-12-2018, 12:14 PM
Replies: 7
Views: 1,242
Posted By WingedFrog
Thanks for the advice! I will not follow my own...

Thanks for the advice! I will not follow my own advice either :o and get a carb sync performed. I did not realize that the little play visible when the throttle is pushed to full was that critical.
Forum: RV-12 04-12-2018, 07:25 AM
Replies: 7
Views: 1,242
Posted By WingedFrog
44 in/lbs confirmed yesterday by my airport Rotax...

44 in/lbs confirmed yesterday by my airport Rotax AN&P specialist.

While doing the SB I found that the throttle arm can slide out and in without changing the throttle cable adjustment therefore no...
Forum: RV-12 08-30-2017, 02:05 PM
Replies: 96
Views: 28,915
Posted By WingedFrog
Another autocorrect giggle ;)

Another autocorrect giggle ;)
Forum: RV-12 08-30-2017, 01:59 PM
Replies: 3
Views: 1,037
Posted By WingedFrog
I had the same symptom before the failure of my...

I had the same symptom before the failure of my Ducati regulator at less than a hundred hours. The deterioration of the solders on the SCR leads starts to show up on cold start. What you observe is...
Forum: RV-12 08-26-2017, 06:40 AM
Replies: 14
Views: 3,771
Posted By WingedFrog
Excellent point, Dave and convincing argument. I...

Excellent point, Dave and convincing argument. I just wonder if I would think of it in the quite stressing situation of engine loss? Well, I am not too much concerned, I am flying behind a Rotax 912,...
Forum: RV-12 08-25-2017, 07:07 AM
Replies: 14
Views: 2,620
Posted By WingedFrog
See this on earthx web...

See this on earthx web site:
http://earthxbatteries.com/earthx-inc-proud-add-vans-aircraft-oems-using-earthx-lithium-battery-new-rotax-912is-equipped-rv-12is
...
Forum: RV-12 08-24-2017, 10:21 AM
Replies: 14
Views: 2,620
Posted By WingedFrog
Thanks Scott, I understand that the RV-12is was a...

Thanks Scott, I understand that the RV-12is was a complete project going beyond just adapting to the 912is.
I beg to disagree with your point about the fuel tank: even if the cg of the new fuel tank...
Forum: RV-12 08-24-2017, 07:23 AM
Replies: 14
Views: 2,620
Posted By WingedFrog
cg question about RV-12 is

When the Rotax 912is was introduced around 2013 there were discussions on this forum about it's introduction on the RV-12. Beside the fact that many arguments were made and doubts raised about fuel...
Forum: RV-12 08-24-2017, 07:05 AM
Replies: 14
Views: 3,771
Posted By WingedFrog
A little gem about the Rotax 912

Coming from Mike Busch, a guru on GA engines, this is big!

https://www.youtube.com/watch?v=jOsCBrQMzWY
Forum: RV-12 07-05-2017, 04:06 PM
Replies: 41
Views: 10,869
Posted By WingedFrog
Now I get it, thanks Dale. Of course an...

Now I get it, thanks Dale. Of course an alternative would be to make the spacer shorter for the soft isolators to allow for more compression but if possible it would be even more work than swapping...
Forum: RV-12 07-05-2017, 05:40 AM
Replies: 41
Views: 10,869
Posted By WingedFrog
From the first link: "The soft isolators can not...

From the first link: "The soft isolators can not be over compressed because there is still a spacer that the bolt torques up on."
Could you elaborate on this, I do not understand.
Forum: RV-12 07-04-2017, 02:07 PM
Replies: 41
Views: 10,869
Posted By WingedFrog
Definitely answers most of my questions, Tom,...

Definitely answers most of my questions, Tom, thanks.
I have a growing feeling that, based on the fact that probably a large number of these soft isolators have been flying with no adverse effect...
Forum: RV-12 07-04-2017, 10:59 AM
Replies: 41
Views: 10,869
Posted By WingedFrog
A few questions

I have a few questions after trying to check my engine:

- The picture on the notification shows two isolators, one good and one bad. These isolators are actually made of two parts, one male and one...
Forum: RV-12 03-31-2017, 07:48 AM
Replies: 32
Views: 11,864
Posted By WingedFrog
Regarding gas I should have been more specific. I...

Regarding gas I should have been more specific. I was using Ethanol free gas which became scarcer lately in my area. I had to switch to an ethanol free station that had only 91 octanes gas while I...
Forum: RV-12 03-30-2017, 03:10 PM
Replies: 26
Views: 10,137
Posted By WingedFrog
I found that on the ground you can set the...

I found that on the ground you can set the autopilot in level mode and force the stick to create a slip which will be signaled on the screen. As the integrated test is transparent this gives me a...
Forum: RV-12 03-30-2017, 02:47 PM
Replies: 32
Views: 11,864
Posted By WingedFrog
This thread has brought to our attention a number...

This thread has brought to our attention a number of important issues regarding this dreaded loss of power on takeoff and in flight due to vapor lock. A big thanks to all contributors!

An aspect of...
Forum: RV-12 03-19-2017, 01:58 PM
Replies: 10
Views: 3,268
Posted By WingedFrog
This is great stuff and, as a heavy AP user it...

This is great stuff and, as a heavy AP user it encourages me to dig into the expert mode. I am wondering how close we can get to automatic landing, including the flare by using only the throttle?
Forum: RV-12 03-19-2017, 07:27 AM
Replies: 5
Views: 1,713
Posted By WingedFrog
It is not clear to me what impact this "dance"...

It is not clear to me what impact this "dance" around the 2" blocks has on the fuel level indication. It seems that in level flight the asset of the plane favors having more fuel in the front of the...
Forum: RV-12 02-27-2017, 01:04 PM
Replies: 19
Views: 6,407
Posted By WingedFrog
You are probably right, Dale to question the need...

You are probably right, Dale to question the need for accuracy for the type of flying we do in the RV-12. I have however found that since I have been involved in building an airplane and then flying...
Forum: RV-12 02-27-2017, 09:24 AM
Replies: 19
Views: 6,407
Posted By WingedFrog
Frankly, Brent I rely little on the Moeller...

Frankly, Brent I rely little on the Moeller reading, except to find if I made an error or if there is anything wrong with the other sensors/measurements.
We have three standard ways to evaluate the...
Forum: RV-12 02-25-2017, 11:16 AM
Replies: 19
Views: 6,407
Posted By WingedFrog
[QUOTE=RFSchaller;1153147] The 10-20 mark is not...

[QUOTE=RFSchaller;1153147] The 10-20 mark is not linear because at about 19.8 gal you start filling the filler neck which causes a faster rise in level [QUOTE]

This is visible at the bottom and top...
Forum: RV-12 02-24-2017, 08:39 AM
Replies: 19
Views: 6,407
Posted By WingedFrog
Jim, I think the rod is too thin to have a usable...

Jim, I think the rod is too thin to have a usable marking printed on. The measuring tape I sacrificed is convenient because it has got a stop at the end against which I push the rod. When taking a...
Forum: RV-12 02-24-2017, 08:18 AM
Replies: 19
Views: 6,407
Posted By WingedFrog
Tom, you should be able to find the fiberglass...

Tom, you should be able to find the fiberglass rod at Home Depot or Lowes (aviation department, of course!:D) . I got the idea from a security system installer who used it to thread wiring inside my...
Forum: RV-12 02-22-2017, 01:43 PM
Replies: 19
Views: 6,407
Posted By WingedFrog
Useful Complements to Moeller Gauge

After closing my fuel tank windows due to leaks (at Hobbs 170 /3 years flying) I missed the precision of the content they were offering. Indeed the Moeller gauge is too inacurate and not linear from...
Forum: RV-12 11-30-2016, 09:20 AM
Replies: 23
Views: 10,963
Posted By WingedFrog
If you get there you may want to try this...

If you get there you may want to try this solution:
http://vieilleburette.blogspot.com/2015/03/ducatti-voltage-regulator-relocation.html

...
Forum: RV-12 11-13-2016, 06:05 PM
Replies: 5
Views: 2,485
Posted By WingedFrog
Great idea

Great idea Mike and not only for the regulator. I mentioned in an earlier thread a failure of a bracket under the ignition module. It turned out that I was not alone and, worse, as the bracket is not...
Forum: RV-12 11-07-2016, 08:51 PM
Replies: 33
Views: 8,794
Posted By WingedFrog
Being in the process of installing the Mechanical...

Being in the process of installing the Mechanical gauge I am curious to find out where you stand on the issue mentioned above.
Thanks
Forum: RV-12 10-18-2016, 07:16 AM
Replies: 23
Views: 11,195
Posted By WingedFrog
Scott: from Vans parts catalog "MC-236-B2...

Scott: from Vans parts catalog

"MC-236-B2 (Quart Kit)
The recommended sealer for RV fuel tanks, replaces older ProSeal. Limited shelf life (approximately 4 months from purchase). Order when ready...
Forum: RV-12 10-17-2016, 07:35 PM
Replies: 23
Views: 11,195
Posted By WingedFrog
This is good to have this information about...

This is good to have this information about N412RV but it is just one RV-12 among a couple hundred that have been flying 3 years or more (I mean all RV-12 that were built and flew before Henry and I...
Forum: RV-12 10-17-2016, 05:52 AM
Replies: 23
Views: 11,195
Posted By WingedFrog
Interestingly, my fuel tank has the same history,...

Interestingly, my fuel tank has the same history, built early 2012 and put to use in September 2013 when the plane first flew. Although I have not experience any leak in the past three years, I just...
Forum: RV-12 10-15-2016, 10:37 AM
Replies: 17
Views: 8,888
Posted By WingedFrog
No problem checking during my annual, but... I...

No problem checking during my annual, but... I have some qualms about " five good ‘thumps’ with the palm of your hand". Is there not a risk to dislodge stabilator bearings that are perfectly fitted...
Forum: RV-12 08-17-2016, 10:29 AM
Replies: 21
Views: 4,206
Posted By WingedFrog
I forgot to mention in my post to check your...

I forgot to mention in my post to check your supplier of ethanol free Mogas, I found that mine (Sunoco) has a disclaimer about using his Ethanol Free gas in airplanes! I suspect that it is a way to...
Forum: RV-12 08-16-2016, 12:25 PM
Replies: 21
Views: 4,206
Posted By WingedFrog
Vapor Locks are more likely with Mogas than with...

Vapor Locks are more likely with Mogas than with Avgas, furthermore after discussing this with a "refiner", with Mogas vapor locks are more likely with lower Octane fuels. For example 91 Octane is...
Forum: RV-12 08-13-2016, 04:15 PM
Replies: 20
Views: 4,780
Posted By WingedFrog
For what it's worth, here is what we did to solve...

For what it's worth, here is what we did to solve this problem (from my builder blog):
http://vieilleburette.blogspot.com/2013/06/the-guy-who-helped-me-conquer-stabilator.html

There is not much...
Forum: RV-12 08-06-2016, 01:53 PM
Replies: 5
Views: 1,521
Posted By WingedFrog
N74846 resumed it well: if you are looking for a...

N74846 resumed it well: if you are looking for a canopy cover to protect your plane year around on tie down you need a cover more sturdy than the light cover offered by VANs. I personally use the...
Forum: RV-12 07-16-2016, 05:05 PM
Replies: 28
Views: 5,963
Posted By WingedFrog
Not at all, Tony! I found that AN&Ps who use to...

Not at all, Tony! I found that AN&Ps who use to deal with customers who sometimes have no idea of what's going on in their plane and how to fix it have lots of respect for experimental plane builders...
Forum: RV-12 07-16-2016, 08:25 AM
Replies: 28
Views: 5,963
Posted By WingedFrog
Although you love to own tools (as I do, I even...

Although you love to own tools (as I do, I even suspect I built a plane for this reason!) you can make an exception for this one as you will use it only once a year, during annual inspection. They...
Forum: RV-12 07-16-2016, 08:20 AM
Replies: 75
Views: 18,208
Posted By WingedFrog
Exactly what I am doing. Every year a couple of...

Exactly what I am doing. Every year a couple of months before renewal the broker sends me a form to update my situation and when they receive it back they go shopping. FWIW my broker is Sutton James...
Forum: RV-12 07-16-2016, 08:13 AM
Replies: 14
Views: 4,619
Posted By WingedFrog
In either case, he deserves to be given a phone...

In either case, he deserves to be given a phone number to call (your choice for the destination).
Forum: RV-12 07-15-2016, 08:10 AM
Replies: 5
Views: 2,027
Posted By WingedFrog
So, the huge "EXPERIMENTAL" on the bulkhead of...

So, the huge "EXPERIMENTAL" on the bulkhead of the baggage compartment is not enough?
I'm not going to do it! (plus I love to spin this plane... unintentionally, of course =8-o)
Forum: ADS-B 06-11-2016, 03:39 PM
Replies: 20
Views: 8,666
Posted By WingedFrog
More precisely here is the link to Dynon's Forum...

More precisely here is the link to Dynon's Forum about the FAA rebate validity for the RV-12 (and other E-LSAs) using Dynon Skyview with SV-XPONDER-261 and...
Forum: ADS-B 06-10-2016, 10:22 AM
Replies: 20
Views: 8,666
Posted By WingedFrog
ADSB Rebate Program

See: http://www.faa.gov/NextGen/equipadsb/rebate/

I wonder if it applies to experimentals? Nothing says it does not in the FAA announcement although I might have missed some small prints. If it does...
Forum: RV-12 06-06-2016, 06:17 AM
Replies: 8
Views: 2,781
Posted By WingedFrog
It's actually the combination of vibrations on...

It's actually the combination of vibrations on excessively hot soldered junctions that causes the junctions to fail.
Forum: RV-12 06-04-2016, 03:52 PM
Replies: 8
Views: 2,781
Posted By WingedFrog
Not that I want to be picky but this seems to...

Not that I want to be picky but this seems to belong to the following thread where what Mike Miller explained here has been extensively...
Forum: RV-12 06-04-2016, 03:15 PM
Replies: 26
Views: 6,428
Posted By WingedFrog
I have a friend practicing IFR approaches on my...

I have a friend practicing IFR approaches on my RV-12 and using me as his SIC (for safety while he is under the hood). You don't need anything more than the Skyview to do that as all reference points...
Forum: RV-12 06-02-2016, 07:13 AM
Replies: 84
Views: 25,443
Posted By WingedFrog
Once the first bug has been found in a complex...

Once the first bug has been found in a complex software you have the proof it is not bug free: This is as far as the software industry, has gone over 70 years regarding producing bug free software....
Forum: RV-12 05-27-2016, 08:21 AM
Replies: 8
Views: 2,438
Posted By WingedFrog
No auto-trim no big deal

At first these multiple requests to trim by the autopilot bothered me a lot. I have come to consider them more friends than pests: when you are under autopilot you don't really "feel" what's going on...
Forum: RV-12 05-24-2016, 03:52 PM
Replies: 17
Views: 7,477
Posted By WingedFrog
Did inspection today, no crack found at hobbs...

Did inspection today, no crack found at hobbs 162.8 (I love my absence of wheel fairings :D)
Forum: RV-12 05-22-2016, 07:38 AM
Replies: 6
Views: 2,098
Posted By WingedFrog
I had this same problem when I first flew the...

I had this same problem when I first flew the plane. Here is a copy of what's in my logbook:
"The cause of the Auto Pilot malfunction was found: a pin distributing power to both servos was not locked...
Forum: RV-12 05-21-2016, 01:28 PM
Replies: 21
Views: 3,709
Posted By WingedFrog
Could you mention how many hours you got on your...

Could you mention how many hours you got on your probes?
My right EGT probe acted funny after my annual with wild fluctuations ending with the red cross (no, not this one, the one on the Skyview:D)....
Forum: RV-12 05-07-2016, 11:41 AM
Replies: 18
Views: 6,127
Posted By WingedFrog
Thanks guys for the info, although I don't use a...

Thanks guys for the info, although I don't use a lot of Avgas when around my home airport, on a long trip Decalin will help alleviate the lead damage on the engine (I hope, although like for any...
Forum: RV-12 05-07-2016, 10:23 AM
Replies: 18
Views: 6,127
Posted By WingedFrog
I am curious about Decalin. Where do you get it,...

I am curious about Decalin. Where do you get it, what's the cost and how do you measure the right quantity to add to your fuel tank after filling with Avgas?
Forum: RV-12 05-03-2016, 04:28 PM
Replies: 36
Views: 7,378
Posted By WingedFrog
Skyview Blackbox Data from Savyyanalysis

I extracted the Skyview data for the period of takeoff that shows the fuel pressure drop. Please refer to the SavyyAnalisis chart...
Forum: RV-12 04-28-2016, 10:35 AM
Replies: 36
Views: 7,378
Posted By WingedFrog
Post Mortem on Fuel Pump

The A&P at the airport where my plane was stranded replaced the fuel pump. I opened the failed pump, here is the...
Forum: RV-12 04-24-2016, 07:39 AM
Replies: 15
Views: 3,593
Posted By WingedFrog
With Skyview 110,000 works very well for me and...

With Skyview 110,000 works very well for me and for others as I recall picking it up in a post here (obviously not Big John's post which applies to D180)
Forum: RV-12 04-23-2016, 04:59 AM
Replies: 36
Views: 7,378
Posted By WingedFrog
Amen brother!

Amen brother!
Forum: RV-12 04-22-2016, 10:45 AM
Replies: 36
Views: 7,378
Posted By WingedFrog
In my case, the fuel pressure was NORMAL when...

In my case, the fuel pressure was NORMAL when starting first (after a 1:30 flight and a 3 hours stop) and during taxiing. It was normal during run-up and until about 10 sec. after I went full...
Forum: RV-12 04-22-2016, 09:14 AM
Replies: 36
Views: 7,378
Posted By WingedFrog
Come on! I am using a modified checklist adapted...

Come on!
I am using a modified checklist adapted to the changes I made and suited to my own taste. For example I do not lock the canopy before I start the engine, just let it crack open. I also...
Forum: RV-12 04-22-2016, 08:26 AM
Replies: 36
Views: 7,378
Posted By WingedFrog
This is a good point and I would expect these...

This is a good point and I would expect these steps to be part of the official Checklist by VANs.

I still prefer my method, for the same reasons why we do the run-up just before takeoff.
Forum: RV-12 04-22-2016, 07:53 AM
Replies: 36
Views: 7,378
Posted By WingedFrog
I beg to disagree. First, doing the right thing...

I beg to disagree. First, doing the right thing when you face a problem is not luck it is knowing what you are doing.

I feel lucky not to have gone airborne with a disabled mechanical pump which...
Forum: RV-12 04-21-2016, 05:21 PM
Replies: 36
Views: 7,378
Posted By WingedFrog
In my case I don't believe in the vapor lock for...

In my case I don't believe in the vapor lock for several reasons:
- I know my plane very well and in 160 hours I have never had any sign of vapor lock even in the hottest months of North Carolina
-...
Forum: RV-12 04-21-2016, 01:18 PM
Replies: 36
Views: 7,378
Posted By WingedFrog
If the electric fuel pump was in parallel with...

If the electric fuel pump was in parallel with the mechanical one, I might believe that it allows to keep fuel pressure to stay in the yellow in case of mechanical pump failure. As it is in line with...
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