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Search: Posts Made By: RV10inOz
Forum: RV-12 12-14-2017, 04:23 PM
Replies: 134
Views: 14,232
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, 03:11 AM
Replies: 134
Views: 14,232
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, 11:57 PM
Replies: 5
Views: 704
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, 04:07 AM
Replies: 5
Views: 704
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, 06:16 AM
Replies: 7
Views: 691
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, 06:05 AM
Replies: 20
Views: 2,300
Posted By RV10inOz
Yes...the filter shrinks and goes hard.

Yes...the filter shrinks and goes hard.
Forum: RV-10 10-22-2017, 04:14 AM
Replies: 20
Views: 2,300
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, 11:28 PM
Replies: 22
Views: 1,606
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, 11:21 PM
Replies: 22
Views: 1,606
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, 08:46 PM
Replies: 19
Views: 1,579
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, 06:53 AM
Replies: 5
Views: 679
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, 06:49 AM
Replies: 19
Views: 1,579
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, 06:23 PM
Replies: 28
Views: 2,476
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, 07:25 PM
Replies: 62
Views: 10,536
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, 07:09 AM
Replies: 11
Views: 1,643
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, 05:06 AM
Replies: 16
Views: 1,785
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, 05:02 AM
Replies: 83
Views: 21,319
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, 04:57 AM
Replies: 22
Views: 1,753
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, 01:48 AM
Replies: 83
Views: 21,319
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, 06:57 PM
Replies: 83
Views: 21,319
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, 07:19 AM
Replies: 11
Views: 1,660
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, 07:15 AM
Replies: 2
Views: 1,294
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, 07:03 AM
Replies: 3
Views: 504
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, 06:14 PM
Replies: 5
Views: 1,124
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, 06:11 PM
Replies: 25
Views: 3,347
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, 05:55 PM
Replies: 2
Views: 1,012
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, 06:02 AM
Replies: 13
Views: 3,225
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, 05:30 PM
Replies: 13
Views: 3,225
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, 10:51 PM
Replies: 28
Views: 6,590
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, 10:37 PM
Replies: 28
Views: 6,590
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, 06:35 PM
Replies: 18
Views: 6,419
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, 01:48 AM
Replies: 52
Views: 9,529
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, 10:38 PM
Replies: 52
Views: 9,529
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, 06:12 PM
Replies: 52
Views: 9,529
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, 08:29 PM
Replies: 52
Views: 9,529
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, 05:14 AM
Replies: 52
Views: 9,529
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, 05:56 PM
Replies: 41
Views: 9,805
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, 07:16 AM
Replies: 19
Views: 2,675
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...
Forum: Traditional Aircraft Engines 06-07-2016, 07:09 AM
Replies: 41
Views: 9,805
Posted By RV10inOz
After discussing this with some Beech folk the...

After discussing this with some Beech folk the other night in Dallas, I offer the alternate view.

You already have a perfectly good FADEC, one that will last you your entire flying career and you...
Forum: RV Ongoing Maintenance Issues 05-26-2016, 05:45 AM
Replies: 11
Views: 2,376
Posted By RV10inOz
I would look at the injector and fuel spider....

I would look at the injector and fuel spider. Small tiny things can do this and pass through.
Forum: RV-9/9A 05-23-2016, 03:53 PM
Replies: 31
Views: 7,798
Posted By RV10inOz
What RPM do you get on take off and early climb...

What RPM do you get on take off and early climb out, what speed are you climbing at and what is the fuel flow and MP just after take off?

You would not be the first person to have an FCU that does...
Forum: Traditional Aircraft Engines 05-23-2016, 03:52 PM
Replies: 14
Views: 3,477
Posted By RV10inOz
Exhaust leak? Photo's of the installation would...

Exhaust leak?

Photo's of the installation would help.

Something is not right, either instrumentation or the install.

Monkeying with injectors is a very bad idea as Dan pointed out...
Forum: RV General Discussion/News 05-22-2016, 09:07 PM
Replies: 22
Views: 5,046
Posted By RV10inOz
Paul, there are a few things to consider. 500dF...

Paul, there are a few things to consider.

500dF is a certification test limit, depending on who you want to believe at Lyc/TCM the recommended cruise limit is anywhere from 400-435dF. Lycoming...
Forum: RV General Discussion/News 05-22-2016, 06:29 AM
Replies: 22
Views: 5,046
Posted By RV10inOz
If it were me, I would remove the little tabs,...

If it were me, I would remove the little tabs, adjust the timing, and contemplate the baffles.
Forum: RV General Discussion/News 05-19-2016, 05:14 PM
Replies: 22
Views: 5,046
Posted By RV10inOz
RV10 with 1300+ hours, and I know a bit about the...

RV10 with 1300+ hours, and I know a bit about the topic, we trimmed away…..and in the end drilled out the rivets.

Just remove them. End of problem.

Instrumit,

1. While we are at it, what throttle,...
Forum: Traditional Aircraft Engines 05-11-2016, 05:48 AM
Replies: 30
Views: 12,284
Posted By RV10inOz
240HP ? IO390? I would want certified and...

240HP ? IO390?

I would want certified and corrected HP data from a known dyno before I believed that.
Forum: RV General Discussion/News 05-10-2016, 07:41 AM
Replies: 308
Views: 90,944
Posted By RV10inOz
RV10 1200 Tach/1400+ hobbs External inspection no...

RV10
1200 Tach/1400+ hobbs
External inspection no sign of anything. Annual starts this weekend so inside the borescope goes, but it looks good so far.

Is there any sign of what caused this SB,...
Forum: Traditional Aircraft Engines 04-28-2016, 02:02 AM
Replies: 8
Views: 1,854
Posted By RV10inOz
Also be aware, recently supplied (say...

Also be aware, recently supplied (say manufactured in 2014-15) points from Slick have been known to drift by a few degrees.

CASA, Champion and even the FAA seem to have their heads in the sand over...
Forum: RV-10 04-19-2016, 03:18 AM
Replies: 11
Views: 2,539
Posted By RV10inOz
Bob, Can't say your logic is flawed.

Bob,

Can't say your logic is flawed.
Forum: RV General Discussion/News 04-17-2016, 09:20 PM
Replies: 7
Views: 1,304
Posted By RV10inOz
Here is the APS recommendation and you can read...

Here is the APS recommendation and you can read John Deakins articles for more background info if you wish.


EGT No limit, however realistically if you want a spark plug failed alert, set it to go...
Forum: RV-10 04-17-2016, 09:06 PM
Replies: 11
Views: 2,539
Posted By RV10inOz
Carl Where or how did you come up with best...

Carl

Where or how did you come up with best glide being 85 knots. I have always struggled getting a good reliable value for this.

Cheers:)
Forum: Traditional Aircraft Engines 04-07-2016, 12:36 AM
Replies: 14
Views: 3,521
Posted By RV10inOz
JBON, What is your takeoff fuel flow MP and RPM,...

JBON,

What is your takeoff fuel flow MP and RPM, do you have an ems and can upload the data?
Forum: Traditional Aircraft Engines 04-07-2016, 12:35 AM
Replies: 14
Views: 3,521
Posted By RV10inOz
Just thought I would fix it up a bit for you, I...

Just thought I would fix it up a bit for you, I know you had the right intentions, but the delivery needed refining.
Forum: RV Photo/Video URLs 04-05-2016, 02:23 AM
Replies: 13
Views: 2,637
Posted By RV10inOz
VLAD There is a very similar supplied of EFB's...

VLAD

There is a very similar supplied of EFB's that is available in the American market. I use it myself :)
http://www.avplan-efb.com

http://www.avplan-efb.com/product-category/united-states/
Forum: RV-10 04-01-2016, 08:28 AM
Replies: 15
Views: 2,351
Posted By RV10inOz
We have 3 screens, GTN750, stormscope, old skool...

We have 3 screens, GTN750, stormscope, old skool strobes and lights……etc…….60A is fine.

If I could have a 70-80A I would though.

Better looking at it than looking for it!
Forum: RV-10 03-31-2016, 01:55 AM
Replies: 14
Views: 3,330
Posted By RV10inOz
I want to know why you would want to move to RSA...

I want to know why you would want to move to RSA :confused:

I hope you not only like but love the concept of Concealed Carry, (which Aussies are lacking :mad: ) because you might need it. 100% of...
Forum: Electrical Systems 03-30-2016, 02:22 AM
Replies: 45
Views: 9,233
Posted By RV10inOz
What Dan said……and check the belt tension is not...

What Dan said……and check the belt tension is not a bit too slack….they will slip under load.
Forum: Traditional Aircraft Engines 03-30-2016, 02:20 AM
Replies: 35
Views: 7,795
Posted By RV10inOz
Yep, this is normal, and Kevin nailed it…..as he...

Yep, this is normal, and Kevin nailed it…..as he often does ;)
Forum: RV-10 03-22-2016, 05:07 PM
Replies: 6
Views: 1,472
Posted By RV10inOz
Use Tempest fine wires. With the 9.5:1 I would...

Use Tempest fine wires. With the 9.5:1 I would suggest you focus more on what spark timing you are gong to use. and dial out 2 degrees of the light speed.
Forum: RV-10 03-11-2016, 01:01 AM
Replies: 9
Views: 2,486
Posted By RV10inOz
Convert AUD$300,000 That will be about it. :)

Convert AUD$300,000

That will be about it. :)
Forum: RV General Discussion/News 03-09-2016, 11:53 PM
Replies: 21
Views: 3,204
Posted By RV10inOz
It's not?????? :eek: Holy cow! Or Holy Pitot...

It's not?????? :eek:

Holy cow! Or Holy Pitot tube batman!!!

It certainly is down here, and we are not as "icing" as you guys up there.
Forum: RV-10 02-10-2016, 06:51 AM
Replies: 16
Views: 2,967
Posted By RV10inOz
AF Australia had a CERTIFIED Piper with a non IFR...

AF Australia had a CERTIFIED Piper with a non IFR pilot after dark kill a cured cancer kid and his mum a few years back in Victoria.

Not sure how that brings ABE aircraft into it but an audit by...
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