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Search: Posts Made By: rv6ejguy
Forum: RV-10 Today, 12:06 PM
Replies: 31
Views: 9,341
Posted By rv6ejguy
There have been 3 RV10s completed locally here...

There have been 3 RV10s completed locally here with the BPE intake, SDS EFI 80mm throttle body and ShowPlanes cowling/ cold air system.
Forum: Fuel Injection Systems 09-28-2022, 09:08 AM
Replies: 32
Views: 6,901
Posted By rv6ejguy
RV-14A Vid

Put this up last night: https://youtu.be/Cl2QlJwBoPY

Many thanks to Ivan Kristensen for dropping in and making this video possible. :)

Was my first trip in a -14. Van's did a great job on the...
Forum: RV General Discussion/News 09-28-2022, 08:55 AM
Replies: 144
Views: 30,978
Posted By rv6ejguy
Best practice for those considering EFI and mogas...

Best practice for those considering EFI and mogas use in RVs:

Pump placement should be on the floor, not FWF

No drilled 90 deg fittings prior to the pumps, mandrel bent 90s are acceptable

90s are...
Forum: RV-8/8A 09-27-2022, 11:59 AM
Replies: 14
Views: 1,164
Posted By rv6ejguy
The top Sport Class engines output in excess of...

The top Sport Class engines output in excess of 800hp when running 400mph+ laps. The thermodynamic rating of the Turbaero is about a 1/4 of this so it wouldn't be a viable alternative here.
Forum: RV-8/8A 09-27-2022, 10:11 AM
Replies: 14
Views: 1,164
Posted By rv6ejguy
While I'm looking forward to seeing the Talon...

While I'm looking forward to seeing the Talon engine finish testing and enter production, there is much to prove on any new engine design, especially on the durability front. You can't compare new...
Forum: RV-8/8A 09-27-2022, 07:22 AM
Replies: 14
Views: 1,164
Posted By rv6ejguy
No turbines allowed in Sport Class.

No turbines allowed in Sport Class.
Forum: RV General Discussion/News 09-26-2022, 08:46 PM
Replies: 144
Views: 30,978
Posted By rv6ejguy
In my world, validation by doing something...

In my world, validation by doing something repeatedly (shall we say thousands of times in this case) gives us good confidence that we have arrived at a sound and safe solution. Seems we are all...
Forum: RV General Discussion/News 09-26-2022, 10:07 AM
Replies: 144
Views: 30,978
Posted By rv6ejguy
Direct injection without also having port...

Direct injection without also having port injection, has additional issues that port injection alone doesn't have due to the engine mounted, ultra high pressure, mechanical pumps and injectors...
Forum: RV General Discussion/News 09-25-2022, 07:47 PM
Replies: 144
Views: 30,978
Posted By rv6ejguy
Not sure what you mean by older. Any EFI car...

Not sure what you mean by older. Any EFI car built in the last 30-40 years will go to the top of Pikes Peak and run just fine. Carb car maybe not. Few people here are flying at 20K but Greg has flown...
Forum: RV General Discussion/News 09-25-2022, 08:41 AM
Replies: 144
Views: 30,978
Posted By rv6ejguy
Vapor lock issues are all to do with pressure and...

Vapor lock issues are all to do with pressure and temperature of a given fuel.

Given enough temperature, the volatile elements in the gasoline will still boil, even at 40 psi. The last generations...
Forum: RV General Discussion/News 09-24-2022, 03:49 PM
Replies: 144
Views: 30,978
Posted By rv6ejguy
When EFI first came out in a widespread way...

When EFI first came out in a widespread way (Bosch D Jetronic, in the late 1960s and L Jetronic in the mid '70s ), pumps were all external and that continued until about 1985.

Those pumps were...
Forum: RV General Discussion/News 09-20-2022, 06:24 AM
Replies: 13
Views: 2,163
Posted By rv6ejguy
The Lee Ulrich RV-7 is turbocharged.

The Lee Ulrich RV-7 is turbocharged.
Forum: Fuel Injection Systems 09-18-2022, 08:57 PM
Replies: 32
Views: 6,901
Posted By rv6ejguy
Reno SDS User Update

Lee Ulrich (RV-7) took first place in the Sport Medallion race today at Reno and Tim Slater in his Rocket took 3rd. Congrats guys!

The fast guys in Sport Class Gold apparently all had problems...
Forum: Fuel Injection Systems 09-15-2022, 08:26 AM
Replies: 32
Views: 6,901
Posted By rv6ejguy
Barry will be handling emails and phones for the...

Barry will be handling emails and phones for the next 2 days so be patient. Responses might be slower than you're used to.

On the Reno front, SDS user Andy Findlay qualified a distant 2nd to Jeff...
Forum: RV-10 09-14-2022, 04:49 PM
Replies: 19
Views: 2,642
Posted By rv6ejguy
The OP is running a carb so... no...

The OP is running a carb so... no injectors...

As FlyinTiger mentioned, a bit of carb heat (experiment as to how much) can make a big difference. Best MPG is generally achieved at around 30 LOP....
Forum: RV-12/RV-12iS 09-13-2022, 07:21 AM
Replies: 20
Views: 2,332
Posted By rv6ejguy
Been using ethanol free mogas for 14 years now....

Been using ethanol free mogas for 14 years now. No Proseal issues so far. 35 micron filters before the pumps, nothing evident there.
Forum: RV General Discussion/News 09-09-2022, 07:05 PM
Replies: 60
Views: 5,952
Posted By rv6ejguy
Austro engines passed the 2 million flight hour...

Austro engines passed the 2 million flight hour mark back in 2019 with their FADEC controlled AE series. Must be close to 3 million now given the increase in fleet size every year.

We'll reach an...
Forum: Fuel Injection Systems 09-09-2022, 03:38 PM
Replies: 32
Views: 6,901
Posted By rv6ejguy
This is what we are working on now for aviation...

This is what we are working on now for aviation at the typical higher loads. We've had closed loop targeting stoich for over 25 years in the automotive market but the new strategy will allow you to...
Forum: Fuel Injection Systems 09-09-2022, 01:40 PM
Replies: 32
Views: 6,901
Posted By rv6ejguy
EM-6 Update

Barry has completed the new SD data logging code and has been running days long sessions testing it for glitches for almost a month now.

In the meantime, CAD work is about half done on the first...
Forum: Traditional Aircraft Engines 09-08-2022, 07:57 AM
Replies: 9
Views: 799
Posted By rv6ejguy
Many Reno guys are using auto race gas like VP,...

Many Reno guys are using auto race gas like VP, usually with high aromatics plus more lead than 100LL. https://vpracingfuels.com/product-category/racing/racing-fuels/

Some of these blends are...
Forum: RV General Discussion/News 09-06-2022, 11:49 AM
Replies: 60
Views: 5,952
Posted By rv6ejguy
Already on the early list of approved engines...

Already on the early list of approved engines months ago was the R2800 which are typically run at a de-rated 52-54 inches when operated on 100LL.

A 390 will not have to worry here.
Forum: RV Friends Who Have Passed On 09-04-2022, 08:44 AM
Replies: 12
Views: 1,368
Posted By rv6ejguy
Thanks for sharing your Dad's story and how he...

Thanks for sharing your Dad's story and how he supported you getting into flying Steve. Sounds like a great Dad and you'll continue think of him lots.
Forum: Fuel Injection Systems 09-02-2022, 05:31 PM
Replies: 32
Views: 6,901
Posted By rv6ejguy
In the last couple weeks we've have two RV-10s...

In the last couple weeks we've have two RV-10s and a Rocket first flight with SDS EFI. Congrats to Randy Pulis, Mark Kostick and Tim Slater. :)

We have several new SDS users heading off to Reno...
Forum: Probable Cause Documents Discussed 08-31-2022, 12:46 PM
Replies: 84
Views: 7,413
Posted By rv6ejguy
You're saying that maintenance errors don't...

You're saying that maintenance errors don't happen any more? Quite a statement.

Probable cause may lead to blame being assigned. That's the hard reality.
Forum: Probable Cause Documents Discussed 08-31-2022, 09:56 AM
Replies: 84
Views: 7,413
Posted By rv6ejguy
I agree. Lack of competence and judgement cause...

I agree. Lack of competence and judgement cause most aviation accidents, outside of straight mechanical failures.
Forum: Probable Cause Documents Discussed 08-31-2022, 07:00 AM
Replies: 84
Views: 7,413
Posted By rv6ejguy
After engine or fuel system maintenance, I was...

After engine or fuel system maintenance, I was taught to do a full power run up for at least 30 seconds. That probably would have emptied the bowl in this case.

Real shame. Shows you can't be too...
Forum: Probable Cause Documents Discussed 08-30-2022, 05:31 PM
Replies: 84
Views: 7,413
Posted By rv6ejguy
I don't think you can make 75ish hp with that...

I don't think you can make 75ish hp with that size orifice...
Forum: Probable Cause Documents Discussed 08-30-2022, 04:06 PM
Replies: 84
Views: 7,413
Posted By rv6ejguy
Wouldn't a run up have discovered this on the...

Wouldn't a run up have discovered this on the ground?
Forum: Traditional Aircraft Engines 08-29-2022, 11:51 AM
Replies: 10
Views: 1,808
Posted By rv6ejguy
Looks like it would as it's been approved for...

Looks like it would as it's been approved for forced induction engines running around 45 inches MAP.
Forum: Traditional Aircraft Engines 08-28-2022, 10:05 AM
Replies: 10
Views: 1,808
Posted By rv6ejguy
Both Lycon and Sky Dynamics have dynoed PV 540s...

Both Lycon and Sky Dynamics have dynoed PV 540s at well over 300hp with fuel injection so the 310hp claim isn't impossible.
Forum: Alternative Engines 08-27-2022, 02:12 PM
Replies: 74
Views: 15,025
Posted By rv6ejguy
Forged pistons and oil squirters. That's what you...

Forged pistons and oil squirters. That's what you need to make it reliable at these specific outputs.

Whoever wrote the article didn't research production turbo engines with ITBs very well.

Lotus...
Forum: Safety 08-26-2022, 07:37 AM
Replies: 252
Views: 30,864
Posted By rv6ejguy
I realize analysis and testing is to 1.2 X Vd,...

I realize analysis and testing is to 1.2 X Vd, not Vne. In any case, Van's doesn't flight test to this criteria. GVT may have been done to this level in simulation.
Forum: Safety 08-25-2022, 04:44 PM
Replies: 252
Views: 30,864
Posted By rv6ejguy
Looked it up myself: 23.629... "predict freedom...

Looked it up myself: 23.629... "predict freedom from flutter, control reversal
and divergence must cover all speeds up to 1.2 VD."
Forum: Safety 08-25-2022, 11:25 AM
Replies: 252
Views: 30,864
Posted By rv6ejguy
Thanks Steve for that info. I think Van's...

Thanks Steve for that info. I think Van's mentioned testing to 220 KTAS AFAIK so that's a bit short of the FAR 23 requirement.
Forum: Safety 08-25-2022, 09:14 AM
Replies: 252
Views: 30,864
Posted By rv6ejguy
Critical errors are often fatal in...

Critical errors are often fatal in aviation.

Make it safe to 250 knots might save a few but someone will still exceed that limit one day. If the two high profile -7s hadn't broken when they did,...
Forum: Safety 08-23-2022, 07:36 AM
Replies: 252
Views: 30,864
Posted By rv6ejguy
I agree. There are aircraft better suited for...

I agree.

There are aircraft better suited for aero and high speed than RVs if you're looking for higher margins.

Looks like the 2 high profile -7 breakups were caused by pilots hooning around with...
Forum: Safety 08-23-2022, 06:44 AM
Replies: 252
Views: 30,864
Posted By rv6ejguy
I think this has been a educational thread, both...

I think this has been a educational thread, both about the importance of airplane limits and what can be done should you wish to increase margins on a -7.
Forum: Safety 08-22-2022, 06:10 PM
Replies: 252
Views: 30,864
Posted By rv6ejguy
This, right off Van's website clearly states...

This, right off Van's website clearly states their design philosophy:

"Based on the results of our various design and testing programs, we determine and publish do-not-exceed limits for calculations...
Forum: Safety 08-22-2022, 02:34 PM
Replies: 252
Views: 30,864
Posted By rv6ejguy
Not all all, just where do you draw the line at...

Not all all, just where do you draw the line at Vne over margin, flutter and structural strength on any aircraft, not just RV7s?

The demo RV-8 lost a wing due to overstress. Do we condemn the design...
Forum: Safety 08-22-2022, 12:42 PM
Replies: 252
Views: 30,864
Posted By rv6ejguy
We don't have the luxury of full FDRs showing...

We don't have the luxury of full FDRs showing control inputs in any of these accidents so you can't say what might have initiated overload or flutter.

I know of 2 stock 7s (turbos) which have been...
Forum: Fuel Injection Systems 08-22-2022, 08:02 AM
Replies: 158
Views: 85,602
Posted By rv6ejguy
Another Update

Dave sent me some more data as his testing continues on optimizing his IO-360 intake system:

"I finally got some interesting numbers on the plenum. It makes more power due to the runners all being...
Forum: Safety 08-22-2022, 07:45 AM
Replies: 252
Views: 30,864
Posted By rv6ejguy
Agree. If there was a systemic fault here, dozens...

Agree. If there was a systemic fault here, dozens or hundreds of 7s would have crashed by now, given the thousands flying.
Forum: Alternative Engines 08-21-2022, 05:22 PM
Replies: 5
Views: 1,163
Posted By rv6ejguy
Thanks. Cool airplane. Glad to see they are still...

Thanks. Cool airplane. Glad to see they are still flying it.
Forum: Electronic Ignition Systems 08-20-2022, 04:05 PM
Replies: 11
Views: 884
Posted By rv6ejguy
I'm thinking on a RV, most of us sitting in the...

I'm thinking on a RV, most of us sitting in the cockpit wouldn't be aware either of an induction fire or a cowling fire until we saw a lot of smoke or smelled it. Probably won't be going flying that...
Forum: RV General Discussion/News 08-19-2022, 08:49 PM
Replies: 159
Views: 39,074
Posted By rv6ejguy
George should be recognized for his hard work,...

George should be recognized for his hard work, perseverance and patience but let's also remember that the folks at Swift have also put considerable effort into UL avgas development and has been...
Forum: RV General Discussion/News 08-19-2022, 11:59 AM
Replies: 159
Views: 39,074
Posted By rv6ejguy
Seems pretty clear from what's been presented by...

Seems pretty clear from what's been presented by Braley but perhaps we're only getting one side of the story.

Given your apparent intimate knowledge of this topic, can you tell us what your...
Forum: Electronic Ignition Systems 08-19-2022, 11:12 AM
Replies: 11
Views: 884
Posted By rv6ejguy
Not something we've even seen or heard about from...

Not something we've even seen or heard about from customers. If it did happen (and you are actually aware of it) seems like a good idea to try to suck the fire back inside the engine however given...
Forum: Safety 08-19-2022, 11:02 AM
Replies: 252
Views: 30,864
Posted By rv6ejguy
Thanks for the link Walt. Enlightening and...

Thanks for the link Walt. Enlightening and thorough.
Forum: Traditional Aircraft Engines 08-19-2022, 09:43 AM
Replies: 57
Sticky: ENGINE COOLING
Views: 40,408
Posted By rv6ejguy
I think Dan has covered the method to measure...

I think Dan has covered the method to measure pressures here several times over the years. Search function is your friend here.
Forum: Safety 08-19-2022, 08:51 AM
Replies: 252
Views: 30,864
Posted By rv6ejguy
You hit the nail on the head here Mickey. While...

You hit the nail on the head here Mickey.

While thousands of -7s have accumulated millions of flight hours safely, seems some people want to make unvalidated changes to the airplane because some...
Forum: Traditional Aircraft Engines 08-19-2022, 08:41 AM
Replies: 57
Sticky: ENGINE COOLING
Views: 40,408
Posted By rv6ejguy
I'm curious to know if you ever measured this on...

I'm curious to know if you ever measured this on your -8?
Forum: Traditional Aircraft Engines 08-18-2022, 09:04 PM
Replies: 57
Sticky: ENGINE COOLING
Views: 40,408
Posted By rv6ejguy
Good cooling is important but ideally we'd like...

Good cooling is important but ideally we'd like to recover as much momentum as possible, exiting that cooling air at as close to free stream velocity as possible. An excellent system will exit the...
Forum: Traditional Aircraft Engines 08-18-2022, 11:01 AM
Replies: 57
Sticky: ENGINE COOLING
Views: 40,408
Posted By rv6ejguy
Good stuff here Pete. Thanks for doing the flying...

Good stuff here Pete. Thanks for doing the flying and posting your data.
Forum: Safety 08-17-2022, 04:28 PM
Replies: 252
Views: 30,864
Posted By rv6ejguy
I'd submit that 7s are not failing at all if...

I'd submit that 7s are not failing at all if built properly and flown within the prescribed limits.

Other RV types have had stab failures from coarse elevator input and wing failures too as I recall...
Forum: RV General Discussion/News 08-17-2022, 01:31 PM
Replies: 159
Views: 39,074
Posted By rv6ejguy
Not practical nor suggesting that, just offering...

Not practical nor suggesting that, just offering that Innospec isn't the only manufacturer of TEL for avgas as you asserted.

The west already imports lots of stuff from China, TEL could be obtained...
Forum: RV General Discussion/News 08-17-2022, 12:47 PM
Replies: 159
Views: 39,074
Posted By rv6ejguy
Nope, as of 2 years ago, there are at least 3 in...

Nope, as of 2 years ago, there are at least 3 in China but I don't think US fuel vendors are buying from there.

https://www.avweb.com/insider/the-tel-scare-that-wasnt/

Yi Shui He Fuel Additives Co...
Forum: RV General Discussion/News 08-17-2022, 09:52 AM
Replies: 159
Views: 39,074
Posted By rv6ejguy
There are multiple companies making TEL for...

There are multiple companies making TEL for markets outside the US.
Forum: Safety 08-17-2022, 07:47 AM
Replies: 252
Views: 30,864
Posted By rv6ejguy
You can't blame structural failures on the...

You can't blame structural failures on the airframe when it's taken over Vne and/or people are making massive control inputs at way over Va.

Step outside any of the limits and you're on your own as...
Forum: RV General Discussion/News 08-17-2022, 07:35 AM
Replies: 159
Views: 39,074
Posted By rv6ejguy
The heat is being turned up recently it seems on...

The heat is being turned up recently it seems on the FAA with these hearings. I may be wrong but wouldn't the EPA start pushing for answers too here pretty quick after putting this is motion so many...
Forum: Alternative Engines 08-16-2022, 07:42 PM
Replies: 5
Views: 1,163
Posted By rv6ejguy
Turbine RV-10?

I stumbled across several vids of a turbine powered RV-10 in Florida having flown many years ago now. Looks like it's still registered. Anyone know anything about it?
Forum: Fuel Injection Systems 08-16-2022, 05:04 PM
Replies: 32
Views: 6,901
Posted By rv6ejguy
Another RV-10 SDS EFI First Start

https://www.youtube.com/watch?v=rYogpFFnDVc
Forum: Traditional Aircraft Engines 08-16-2022, 06:57 AM
Replies: 10
Views: 1,070
Posted By rv6ejguy
The AC-Aero cylinders have much better ports and...

The AC-Aero cylinders have much better ports and chambers than legacy Lycoming cylinders permitting higher CRs and VE which equals more power, less chance of detonation, better SFCs.
Forum: Traditional Aircraft Engines 08-15-2022, 07:32 PM
Replies: 10
Views: 1,070
Posted By rv6ejguy
We have a customer planning to install our EFI on...

We have a customer planning to install our EFI on one of these engines soon. Will try to follow up on that as it progresses. Cool kit, pun intended. ;)
Forum: Trip Write-ups 08-15-2022, 09:01 AM
Replies: 48
Views: 5,344
Posted By rv6ejguy
Pierre and Bob, not sure why you have to post...

Pierre and Bob, not sure why you have to post your thoughts on alternative engines here. Have a Sube customer who's flown the equivalent of almost 5 times around the world, no forced landings...
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