VansAirForceForums  
Home > VansAirForceForums

- POSTING RULES
- Donate yearly (please).
- Advertise in here!

- Today's Posts | Insert Pics


Go Back   VAF Forums > Search Forums
Register FAQ Members List Calendar Search Today's Posts Mark Forums Read

Showing results 1 to 62 of 500
Search took 0.10 seconds.
Search: Posts Made By: RV10inOz
Forum: Autopilots 04-22-2018, 09:44 PM
Replies: 10
Views: 1,056
Posted By RV10inOz
https://www.cadbury.com.au/products/pre-teens-conf...

https://www.cadbury.com.au/products/pre-teens-confectionery/freddo.aspx
Forum: Autopilots 04-22-2018, 12:44 AM
Replies: 10
Views: 1,056
Posted By RV10inOz
I will bet, a small chocky frog, that your servo...

I will bet, a small chocky frog, that your servo has been corroded internally from condensation build up, and has seized.

It has happened before, and on ROLL.

Make sure you alert this to Dynon's AP...
Forum: Traditional Aircraft Engines 04-16-2018, 04:27 AM
Replies: 21
Views: 1,957
Posted By RV10inOz
Indeed, there are several reasons why people end...

Indeed, there are several reasons why people end up further LOP than they think they are;

1. The hysteresis in the probe and the algorithm detecting the peak can miss it, depending on how you...
Forum: Traditional Aircraft Engines 04-14-2018, 08:45 PM
Replies: 21
Views: 1,957
Posted By RV10inOz
You could and would have been just as well...

You could and would have been just as well running LOP from the start. points to note, high mean effective pressure is what you need to break in the engine, you can achieve that ROP or LOP, but the...
Forum: RV General Discussion/News 04-13-2018, 03:35 PM
Replies: 17
Views: 1,096
Posted By RV10inOz
Few things at play here; 1. resolution of the...

Few things at play here;

1. resolution of the instrument/ sender
2. Carby has a valve/float so flow can be on/off at a fast interval, so pressure rises and falls, your fuel flow is averaged a little...
Forum: RV-10 04-13-2018, 03:26 PM
Replies: 20
Views: 2,402
Posted By RV10inOz
Carl, that is way faster than Vans numbers, have...

Carl, that is way faster than Vans numbers, have you checked your TAS vs flying a GPS box to verify static error?

If the static is pretty close you have one slick machine! :eek:
Forum: RV-7/7A 03-05-2018, 03:48 AM
Replies: 6
Views: 637
Posted By RV10inOz
I wonder what the spark advance difference is...

I wonder what the spark advance difference is between your old and new?

The old Unison system may still have had less advance than the LSE.

Especially when ROP, this drives CHT up but even LOP it...
Forum: RV-12 02-15-2018, 02:09 PM
Replies: 3
Views: 1,127
Posted By RV10inOz
Garmin (apollo) radios are great, but the Dynon...

Garmin (apollo) radios are great, but the Dynon is a Trig box with a Dynon head.

Nothing wrong with TRIG anything as far as I can tell.
Forum: Electronic Ignition Systems 02-12-2018, 04:08 AM
Replies: 18
Views: 1,307
Posted By RV10inOz
Dan, Great post. From the GAMI dyno I can...

Dan,

Great post. From the GAMI dyno I can suggest that the 23 degrees you speak of is equivalent to what a magneto produces at the spark plug. So, in saying that, with a magneto being a compromise,...
Forum: Traditional Aircraft Engines 02-10-2018, 11:34 PM
Replies: 12
Views: 1,356
Posted By RV10inOz
Doug, Do you want a manual written for you? A...

Doug,

Do you want a manual written for you?

A first start, check leaks etc, then short taxi and brake test, first flight (15-30 min) subsequent flight, rest of test flight phase? These would all...
Forum: Traditional Aircraft Engines 02-10-2018, 05:13 AM
Replies: 12
Views: 1,356
Posted By RV10inOz
Simple. Do a start...check for leaks, fuel...

Simple.

Do a start...check for leaks, fuel system and oil. Once confirmed all OK, go fly.

Do circuits, power on and off or just fly at 75% power or more for about 5-7 hours. That is it.

Now the...
Forum: Electronic Ignition Systems 01-29-2018, 11:00 PM
Replies: 31
Views: 3,968
Posted By RV10inOz
Original post DATA In Instrument flying you...

Original post DATA



In Instrument flying you learn to trust your instruments. The EMS is no different. The data was telling the story......




We have seen this on magneto's, what is the chances...
Forum: RV-10 01-27-2018, 12:39 AM
Replies: 8
Views: 800
Posted By RV10inOz
Set CHT to YELLOW at 380 and RED by 400 or 410 at...

Set CHT to YELLOW at 380 and RED by 400 or 410 at the most.

EGT, no limit.

Fuel as others have posted.
Forum: Electronic Ignition Systems 01-23-2018, 03:07 PM
Replies: 31
Views: 3,968
Posted By RV10inOz
The CHT dropping is a sign of one plug not...

The CHT dropping is a sign of one plug not firing. You should also see an elevated EGT from normal (whatever normal would be for that probe) of something like an extra 60-90dF.

As others have noted,...
Forum: International 01-21-2018, 11:23 PM
Replies: 8
Views: 1,542
Posted By RV10inOz
Andrew McIntosh Great guy, very experienced and...

Andrew McIntosh

Great guy, very experienced and he owns an RV :)

And lives close by.
Forum: RV-10 01-15-2018, 03:06 PM
Replies: 20
Views: 3,033
Posted By RV10inOz
More or less CO?

Interesting fact for your consideration.

ROP operations such as takeoff and climb will produce the highest % of CO, compared to LOP in the cruise which produces hardly any.

So it is likely that you...
Forum: RV-10 12-22-2017, 06:03 AM
Replies: 87
Views: 19,845
Posted By RV10inOz
Interesting. Knowing the reasons for the C182...

Interesting.

Knowing the reasons for the C182 debacle being scrapped I am keen to see how this works.

Relights were a problem for the 182.....but for a whole host of other reasons than the CHT...
Forum: RV-10 12-22-2017, 05:55 AM
Replies: 27
Views: 3,560
Posted By RV10inOz
Well maybe in future he should articulate that....

Well maybe in future he should articulate that. :confused::mad::cool:

Not everyone is a mind reader.
Forum: RV-10 12-21-2017, 07:06 AM
Replies: 87
Views: 19,845
Posted By RV10inOz
Interesting. Most of us would see at 5000'around...

Interesting. Most of us would see at 5000'around 177-180HP and 164TAS, and as you would expect about 45-46LPH or 12.0-12.15GPH.

Besides the CR benefits the cooling drag must be an issue?
Forum: RV-12 12-19-2017, 01:20 PM
Replies: 18
Views: 3,797
Posted By RV10inOz
Besides the obvious debris in the carb, check the...

Besides the obvious debris in the carb, check the balance tube between the two carbs. I have seen blockage/crimped as well as worn through to a hole.

Next big one is ignition, did you do a mag...
Forum: RV-10 12-19-2017, 01:13 PM
Replies: 27
Views: 3,560
Posted By RV10inOz
Just because you can does not mean you should. I...

Just because you can does not mean you should.

I am with the post above, although rather than 200 hours we have 1500, same result. Energy management 101 is a class many should take that contemplate...
Forum: Glass Cockpit 12-18-2017, 03:20 PM
Replies: 37
Views: 5,394
Posted By RV10inOz
Having been a Dynon user since 2004, and in...

Having been a Dynon user since 2004, and in recent years been helping others with installation etc.....including some G3X, I have an opinion. But bare in mind this is just an opinion.

Garmin make...
Forum: Electrical Systems 12-17-2017, 04:00 PM
Replies: 48
Views: 24,281
Posted By RV10inOz
This is an old post, but so far I have not seen...

This is an old post, but so far I have not seen any replacements. I have HID in MR16's and they are good, but when they fail. :(

Has there been anything?
Forum: RV-12 12-17-2017, 03:51 PM
Replies: 150
Views: 21,408
Posted By RV10inOz
Andrew, Detonation is not a definitive thing, I...

Andrew,

Detonation is not a definitive thing, I have participated in to a small extent the unleaded avgas certification of G100UL. I have plenty of material which I cannot release publicly but there...
Forum: RV-12 12-14-2017, 03:23 PM
Replies: 150
Views: 21,408
Posted By RV10inOz
I think you will find the time scale (x axis) is...

I think you will find the time scale (x axis) is the same, the amplitude is what matters. The first big spike is the event followed by the pressure waves bouncing around the chamber.

I have a graph...
Forum: RV-12 12-09-2017, 02:11 AM
Replies: 150
Views: 21,408
Posted By RV10inOz
rv6ejguy = ON THE MONEY Applies to all spark...

rv6ejguy = ON THE MONEY



Applies to all spark ignition gasoline engines. ALL of them.

APS/ GAMI many years ago contracted Air Data research to compile all the engine SDR's and crash reports into...
Forum: RV-10 11-14-2017, 10:57 PM
Replies: 5
Views: 812
Posted By RV10inOz
I respectfully disagree. And so does the...

I respectfully disagree. And so does the science/laws of physics.

If a plug was not connected properly the EGT on that cylinder will be much higher not lower. The CHT on that same cylinder will be...
Forum: RV-10 11-13-2017, 03:07 AM
Replies: 5
Views: 812
Posted By RV10inOz
If that is on one cylinder only, you have a...

If that is on one cylinder only, you have a preignition event going on from some cross firing in the mag.

For the CHT at ground/run up power to have jumped that much, and have much lower EGT and run...
Forum: Traditional Aircraft Engines 10-23-2017, 05:16 AM
Replies: 7
Views: 891
Posted By RV10inOz
What you are seeing is perfectly normal. On even...

What you are seeing is perfectly normal.

On even hotter days, after a climb, the fuel pump and associated parts become heat soaked and at altitude with warm fuel in the tanks you are getting vapour...
Forum: RV-10 10-23-2017, 05:05 AM
Replies: 20
Views: 2,753
Posted By RV10inOz
Yes...the filter shrinks and goes hard.

Yes...the filter shrinks and goes hard.
Forum: RV-10 10-22-2017, 03:14 AM
Replies: 20
Views: 2,753
Posted By RV10inOz
We built a fully fabricated aluminium......or...

We built a fully fabricated aluminium......or aluminum for you guys :D air box. Solved all the issues :)
Forum: RV-10 10-01-2017, 10:28 PM
Replies: 22
Views: 1,928
Posted By RV10inOz
I have responded in red and caps.....not because...

I have responded in red and caps.....not because I am SHOUTING at you, but for clarity or who wrote what. Hope this helps you understand they why's and where's. ;):)
Forum: RV-10 10-01-2017, 10:21 PM
Replies: 22
Views: 1,928
Posted By RV10inOz
I am the ultimate numbers guy :D Data has no...

I am the ultimate numbers guy :D Data has no opinion.

There is no doubt a post of mine going back to about 2009 when I went down this road. We fitted the machined ports (probably from A/spruce) as...
Forum: Traditional Aircraft Engines 09-27-2017, 07:46 PM
Replies: 19
Views: 1,722
Posted By RV10inOz
Cyrus, Not sure if you have checked this yet...

Cyrus,


Not sure if you have checked this yet but TRIPPLE CHECK that you have the following;

1. The correct sensor setting in the G3X for K type for your EGT probes (assume they are) and J type for...
Forum: Glass Cockpit 09-27-2017, 05:53 AM
Replies: 5
Views: 821
Posted By RV10inOz
Do this test, get up to altitude, set WOT and...

Do this test, get up to altitude, set WOT and 2500 RPM. Note the % power, then lean all the way through until all cylinders are Lean of Peak EGT. say about 10-20 degrees. The % power should be 10%...
Forum: Traditional Aircraft Engines 09-27-2017, 05:49 AM
Replies: 19
Views: 1,722
Posted By RV10inOz
In addition to what Dan wrote above, the EGT...

In addition to what Dan wrote above, the EGT values alarm me, they are very low. This along with the high CHT is likely to be from advanced timing.

Advanced timing beyond 25 degrees in a mag (about...
Forum: Traditional Aircraft Engines 09-05-2017, 05:23 PM
Replies: 29
Views: 3,575
Posted By RV10inOz
Guys, let me clear up WHY the EGT goes higher...

Guys, let me clear up WHY the EGT goes higher with one plug, or whole magneto is offline.

As DanH has already pointed out combustion is over way before the valve opens, and this is 100% true.

The...
Forum: Safety 08-15-2017, 06:25 PM
Replies: 61
Views: 11,282
Posted By RV10inOz
Alternate view of things. I have watched the...

Alternate view of things.


I have watched the video multiple times and looked at the failure, and I am very much agreeing with Scott McDanials from VANS. This is highly unlikely to be flutter from a...
Forum: RV-10 08-14-2017, 06:09 AM
Replies: 11
Views: 1,787
Posted By RV10inOz
I think most IFR comfy but not over the top -10's...

I think most IFR comfy but not over the top -10's will be 1700lbs plus or minus a bit.

Second batteries or alternators and all the gear.....all adds up.

People could lose weight easier......I...
Forum: Traditional Aircraft Engines 07-21-2017, 04:06 AM
Replies: 16
Views: 2,004
Posted By RV10inOz
Most likely an intake gasket leak. If running ROP...

Most likely an intake gasket leak. If running ROP the EGT will be a bit higher and the CHT higher.

Things like a broken ring or similar can do the same thing so look inside if you can with a...
Forum: RV General Discussion/News 07-21-2017, 04:02 AM
Replies: 86
Views: 24,153
Posted By RV10inOz
Tim, there are two problems at play here. The...

Tim, there are two problems at play here. The recent bushes from late 2015 were most likely but I can't confirm, to resolve issues that go back to around 2011 and who knows when else.

Strangely the...
Forum: RV-10 07-21-2017, 03:57 AM
Replies: 22
Views: 1,936
Posted By RV10inOz
We had ours crack a long time ago. Doubled it up...

We had ours crack a long time ago. Doubled it up and re-riveted it up. Now at 1310/1500 Tach/hobbs and still OK on the repair.

Guessing the OEM part cracked at 500-700 hours.....cant remember.
Forum: RV General Discussion/News 07-19-2017, 12:48 AM
Replies: 86
Views: 24,153
Posted By RV10inOz
Follow up from my earlier post, these bushes are...

Follow up from my earlier post, these bushes are a new design from a year or so ago, and they were a "new design"........wonder why the new design, but now the new one is worse!


I went back through...
Forum: RV General Discussion/News 07-18-2017, 05:57 PM
Replies: 86
Views: 24,153
Posted By RV10inOz
More BAD NEWS to follow if you ask me. History,...

More BAD NEWS to follow if you ask me.


History, my Advanced Pilot seminars colleague down here in Australia and one of our mutual friends who between them are the countries biggest and best engine...
Forum: Fuel Injection Systems 07-11-2017, 06:19 AM
Replies: 14
Views: 2,889
Posted By RV10inOz
Precision for sure.Airflow Performance most...

Precision for sure.Airflow Performance most likely the better option. Avstar no.

I will give you a tip. All new Avstar and Precision less so units are being re-benched down here because they are not...
Forum: RV-14 07-11-2017, 06:15 AM
Replies: 2
Views: 1,572
Posted By RV10inOz
LOP about 34 maybe 33 Litres per hour, or say...

LOP about 34 maybe 33 Litres per hour, or say 9USG per hour.

ROP at say 22" and 2500 RPM (mass air flow matters) you will be at 70% power and wanting at least 125dF ROP. My guess is around 45LPH or...
Forum: RV Building Tips/Techniques 07-11-2017, 06:03 AM
Replies: 3
Views: 601
Posted By RV10inOz
If you mean the single wire joiner that is tiny...

If you mean the single wire joiner that is tiny and red coloured with an allen ky screw.........?

They are OLC-1's I think?

They are the best thing, even better for your EGT and CHT connections....
Forum: RV-10 05-09-2017, 05:14 PM
Replies: 5
Views: 1,359
Posted By RV10inOz
You will likely see this again. in warm to hot...

You will likely see this again. in warm to hot weather and with warm fuel, climbing through 6-7000' you hit a zone where ambient pressure combined with the up hill suck for fuel, lower fuel flows in...
Forum: RV-10 05-09-2017, 05:11 PM
Replies: 25
Views: 3,945
Posted By RV10inOz
Jeff, If you say you would be happy at 55%...

Jeff,

If you say you would be happy at 55% power, with a stock IO540 that would be 9.59USG/hr. How much less burn do you need?

Next is to consider the Cessna 182 drama. They are very tight lipped...
Forum: RV-10 05-09-2017, 04:55 PM
Replies: 2
Views: 1,110
Posted By RV10inOz
I am curious as to why the requirement to use the...

I am curious as to why the requirement to use the corrosion inhibitor when using the ULP products as defined. That is fertile ground for all manner of Old Wives Tales to be spawned. :eek:

My...
Forum: RV-10 04-10-2017, 05:02 AM
Replies: 13
Views: 3,534
Posted By RV10inOz
Well there is hope for the fixed pitch folk. If...

Well there is hope for the fixed pitch folk. If you have good F/A ratio's you simply lean for about a 100RPM drop. It makes EGT hard to monitor as the EGT changes so much but effectively this is the...
Forum: RV-10 03-29-2017, 04:30 PM
Replies: 13
Views: 3,534
Posted By RV10inOz
As a business partner with John Deakin, George...

As a business partner with John Deakin, George Braly (GAMI/TAT) and Walter Atkinson, I can also endorse those comments above.

I strongly suggest you sign up for their engine management course...
Forum: RV General Discussion/News 01-30-2017, 09:51 PM
Replies: 28
Views: 7,248
Posted By RV10inOz
Dan, those reports are very old and few things...

Dan, those reports are very old and few things should be noted. The FAA have learned a lot since then and the PAFI process is "interesting" to say the least.

Also worthy of note the Swift fuels are...
Forum: RV General Discussion/News 01-29-2017, 09:37 PM
Replies: 28
Views: 7,248
Posted By RV10inOz
Don't worry about it. You will be able to get...

Don't worry about it.

You will be able to get 100LL or a suitable unload 100LL replacement. My bet is it will be G100UL.

I have some inside knowledge that makes me feel confident you will be OK,...
Forum: RV-14 01-06-2017, 05:35 PM
Replies: 18
Views: 7,104
Posted By RV10inOz
Graham, You actually WANT your oil temp up...

Graham,

You actually WANT your oil temp up there, especially given it will be lower in winter nd when the engine settles down.

Climb at around 120 knots IAS.

All the best.
Forum: RV-10 11-24-2016, 12:48 AM
Replies: 52
Views: 10,574
Posted By RV10inOz
Paul, if your FCU is not flowing properly, you...

Paul, if your FCU is not flowing properly, you need to remove it and send it to a facility with a proper test bench, and insist they set it to the upper limit of spec.

My partner in the Advanced...
Forum: RV-10 11-21-2016, 09:38 PM
Replies: 52
Views: 10,574
Posted By RV10inOz
True. Which is why I think your cooling is not...

True. Which is why I think your cooling is not optimal because even LOP your temps are higher than most others.

But if you have insufficient flow on takeoff, you have climb limitations you otherwise...
Forum: RV-10 11-20-2016, 05:12 PM
Replies: 52
Views: 10,574
Posted By RV10inOz
Paul, on the weekend climbing through 4000-5000 I...

Paul, on the weekend climbing through 4000-5000 I saw flow higher than that, I should have taken a photo.

I would try to get to a sea level port and do a takeoff there and see what flow you get...
Forum: RV-10 11-17-2016, 07:29 PM
Replies: 52
Views: 10,574
Posted By RV10inOz
Just a point of order. It is not excess air, for...

Just a point of order. It is not excess air, for every intake at the same conditions there is the same amount of air, and there is no way physically possible for any "excess air" to do the cooling...
Forum: RV-10 11-17-2016, 04:14 AM
Replies: 52
Views: 10,574
Posted By RV10inOz
Paul, Please note that quite a number of fuel...

Paul,

Please note that quite a number of fuel control units in recent years are coming out of the factory at min fuel flow or worse. I suspect the old timers who built them knew they had to achieve...
Forum: Traditional Aircraft Engines 06-07-2016, 04:56 PM
Replies: 41
Views: 10,615
Posted By RV10inOz
Funny, I took that to mean no holy wars between...

Funny, I took that to mean no holy wars between the few manufacturers…..clearly YMMV :cool:
Forum: RV General Discussion/News 06-07-2016, 06:16 AM
Replies: 19
Views: 2,942
Posted By RV10inOz
You have a plug problem, or it's related plug...

You have a plug problem, or it's related plug lead or distributor post or if on an EI the coil connection/coil.

Most likely the plug.

The correct method of test is to do an in flight mag check...
Showing results 1 to 62 of 500

 
Forum Jump

All times are GMT -6. The time now is 02:04 PM.


The VAFForums come to you courtesy Delta Romeo, LLC. By viewing and participating in them you agree to build your plane using standardized methods and practices and to fly it safely and in accordance with the laws governing the country you are located in.