VansAirForceForums  
Home > VansAirForceForums

-POSTING RULES
-Advertise in here!
- Today's Posts | Insert Pics

Keep VAF Going
Donate methods

Point your
camera app here
to donate fast.


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

Showing results 1 to 64 of 500
Search took 0.04 seconds.
Search: Posts Made By: rv6ejguy
Forum: VAF Classifieds (posts in here deleted after 30 days) Yesterday, 09:54 PM
Replies: 2
Views: 309
Posted By rv6ejguy
Back on the market now...

Back on the market now...
Forum: VAF Classifieds (posts in here deleted after 30 days) 08-01-2021, 01:02 PM
Replies: 2
Views: 309
Posted By rv6ejguy
National 425 Parachute SOLD

Manufactured 2003, never deployed, worn about 20 times during flight testing. Like new. Stored in a bag in a dry place since 2004.

Asking $600US.

PM me.
Forum: RV General Discussion/News 08-01-2021, 10:07 AM
Replies: 11
Views: 1,487
Posted By rv6ejguy
Big congrats Darwin!

Big congrats Darwin!
Forum: RV General Discussion/News 07-30-2021, 10:19 AM
Replies: 80
Views: 9,194
Posted By rv6ejguy
I had read somewhere that most of the FAA...

I had read somewhere that most of the FAA concerns seemed to be about specific gravity and other factors about the Swift and GAMI fuels. Both had passed detonation testing on turbocharged engines at...
Forum: RV General Discussion/News 07-29-2021, 08:24 PM
Replies: 80
Views: 9,194
Posted By rv6ejguy
On 9 to 1 PV engines, you can reduce timing to...

On 9 to 1 PV engines, you can reduce timing to around 20 deg at high MAP, say above 25 inches. This seems to be pretty safe on 91 mogas and will lower the CHTs in the climb with minimal loss of...
Forum: RV General Discussion/News 07-29-2021, 04:40 PM
Replies: 80
Views: 9,194
Posted By rv6ejguy
As stated in the AOPA article, It seems GAMI...

As stated in the AOPA article, It seems GAMI already has many test cell hours running on a turbo Lycoming. If I read the article right, they are hoping with a bunch of real world experience with the...
Forum: RV General Discussion/News 07-29-2021, 06:48 AM
Replies: 80
Views: 9,194
Posted By rv6ejguy
It's an important first step to get the ball...

It's an important first step to get the ball rolling. Now it may be a battle between Swift and GAMI formulations and who can produce and distribute enough of it.
Forum: RV Friends Who Have Passed On 07-29-2021, 05:32 AM
Replies: 5
Views: 618
Posted By rv6ejguy
Sad to lose the man and his huge knowledge base. ...

Sad to lose the man and his huge knowledge base. He educated a lot of pilots with his writings, including me.
Forum: RV General Discussion/News 07-28-2021, 08:09 PM
Replies: 80
Views: 9,194
Posted By rv6ejguy
Good news. Looks like Swift and GAMI are both...

Good news. Looks like Swift and GAMI are both going the STC route initially at least.
Forum: RV General Discussion/News 07-27-2021, 09:03 PM
Replies: 80
Views: 9,194
Posted By rv6ejguy
This is why I think it will be going the STC...

This is why I think it will be going the STC route initially. It will be a gradual phase in as more planes get the paperwork. Swift is already selling their STC for $100 for lots of certified models...
Forum: Fuel Injection Systems 07-27-2021, 10:15 AM
Replies: 29
Views: 6,803
Posted By rv6ejguy
Cup Race

Dave Anders took top spot in RV Gold at 241.25 mph. :)
Forum: RV General Discussion/News 07-27-2021, 09:11 AM
Replies: 102
Views: 47,963
Posted By rv6ejguy
George, lots of Corvairs flying and they work...

George, lots of Corvairs flying and they work well. The conversion process has been refined for a couple decades now and is well understood.

The engines are quite robust at the 110-120hp level. I've...
Forum: Fuel Injection Systems 07-25-2021, 08:24 AM
Replies: 29
Views: 6,803
Posted By rv6ejguy
Marvin's RV-14 is parked in HBC, row 314 for...

Marvin's RV-14 is parked in HBC, row 314 for those interested. N829MS.

Les Kearney's RV-10 is in row 345. C-GROK. I have Les' number if you want to meet up.

Kyle Fowler will be performing in his...
Forum: Propellers 07-23-2021, 09:17 PM
Replies: 20
Views: 1,653
Posted By rv6ejguy
Let us know what you see for performance...

Let us know what you see for performance gain/loss.
Forum: RV General Discussion/News 07-23-2021, 09:00 PM
Replies: 80
Views: 9,194
Posted By rv6ejguy
An interesting tidbit published in late 2019:...

An interesting tidbit published in late 2019:

"Swift Fuel’s Unleaded UL94 Avgas is sold nationwide - priced competitively with 100LL and is expected to remain low subject to oil market volatility....
Forum: RV General Discussion/News 07-23-2021, 04:36 PM
Replies: 80
Views: 9,194
Posted By rv6ejguy
Clostermann, good points you make here. When...

Clostermann, good points you make here.

When 115/145 was phased out, operators of mainly ex military radials had to switch to 100/130 and they often had to reduce MAP to do that safely. HP was...
Forum: Alternative Engines 07-23-2021, 04:21 PM
Replies: 219
Views: 64,450
Posted By rv6ejguy
I don't know if it will be in far less time. The...

I don't know if it will be in far less time. The genesis of this project goes back a few years now, like 2008-2010 I think.

Sometimes large companies design by committee which is rarely efficient or...
Forum: Fuel Injection Systems 07-23-2021, 08:26 AM
Replies: 29
Views: 6,803
Posted By rv6ejguy
Oshkosh

We won't be at Oshkosh this year but will have some folks there with SDS products.

A just saw Les Kearney take off here with his RV-10 you've seen in several videos. He's happy to show you his EFI...
Forum: Alternative Engines 07-23-2021, 07:40 AM
Replies: 219
Views: 64,450
Posted By rv6ejguy
I imagine the heat exchanger design and...

I imagine the heat exchanger design and construction was a big challenge along with many other aspects. Kudos for staying at it. Can't wait for the first vid of the startup. :)
Forum: Alternative Engines 07-23-2021, 05:36 AM
Replies: 219
Views: 64,450
Posted By rv6ejguy
Thanks for the update Dave, good to know how the...

Thanks for the update Dave, good to know how the project is progressing.
Forum: Fuel Injection Systems 07-18-2021, 09:54 PM
Replies: 29
Views: 6,803
Posted By rv6ejguy
Deliveries

Our order backlog continues to grow despite our best efforts to keep up. We're now at 8-10 weeks on CPI-2 and EM-5 kits. 1-2 on most CNC'd parts and CPIs.

We'll put your order in sequence and give...
Forum: RV General Discussion/News 07-18-2021, 12:05 PM
Replies: 23
Views: 1,594
Posted By rv6ejguy
The OP doesn't own an RV and I'd suggest to him...

The OP doesn't own an RV and I'd suggest to him when posting here on VAF that he say so when soliciting help on a topic so the mods can do as they wish then.

This site is for RV related stuff only....
Forum: Electronic Ignition Systems 07-18-2021, 11:54 AM
Replies: 48
Views: 4,039
Posted By rv6ejguy
You can Google counterfeit NGK spark plugs and...

You can Google counterfeit NGK spark plugs and find a lot of info there. This is very widespread on platforms like Amazon.

Many other companies like MSD, Walbro and Bosch have warnings on their...
Forum: Alternative Engines 07-11-2021, 11:22 AM
Replies: 52
Views: 18,295
Posted By rv6ejguy
Yes. It seems the Adept engine pricing doesn't...

Yes. It seems the Adept engine pricing doesn't seem so bad now if people are looking for other choices...
Forum: Alternative Engines 07-09-2021, 07:28 PM
Replies: 52
Views: 18,295
Posted By rv6ejguy
It exists for the Lancair Evolution and a Tecnam....

It exists for the Lancair Evolution and a Tecnam. Never released for Experimentals though. I believe they would be close to $100K if you could buy one.
Forum: RV Ongoing Maintenance Issues 07-09-2021, 08:29 AM
Replies: 15
Views: 1,014
Posted By rv6ejguy
I tested my 70A ND alternator. Produced 26 amps...

I tested my 70A ND alternator. Produced 26 amps at 1500 rotor rpm, 60 amps at 2800 rotor rpm. Given the typical drive ratio on a Lycoming setup, I'd guess you should have at least 90% of the full...
Forum: VAF Classifieds (posts in here deleted after 30 days) 07-05-2021, 11:44 AM
Replies: 2
Views: 375
Posted By rv6ejguy
I have an AA212CW one with about 360 hours on it....

I have an AA212CW one with about 360 hours on it. Was working well when removed.
Forum: RV-14 07-03-2021, 03:45 PM
Replies: 46
Views: 9,554
Posted By rv6ejguy
Not to put a damper on things but there have been...

Not to put a damper on things but there have been a number of piston failures on earlier UL engines. Add a turbo and you'll add more heat to the piston crown.

Apparently, they went from cast to...
Forum: RV Friends Who Have Passed On 07-01-2021, 10:31 AM
Replies: 29
Views: 2,512
Posted By rv6ejguy
Thanks for posting the tribute about your Dad....

Thanks for posting the tribute about your Dad. Sounds like he lived a good and exciting life. You'll miss him but have hundreds of great memories which will come back from time to time and make you...
Forum: Fuel Injection Systems 07-01-2021, 06:56 AM
Replies: 29
Views: 6,803
Posted By rv6ejguy
Closed Today for Canada Day

We're still in the record heat wave here and will be closed today for Canada day. Open again on Friday.
Forum: Fuel Injection Systems 07-01-2021, 06:54 AM
Replies: 29
Views: 6,803
Posted By rv6ejguy
Operating temps for the latest displays is -20C...

Operating temps for the latest displays is -20C to +70C. The characters become slow to resolve below -20C however in our testing, still reasonably visible down to about -28C.

The ECUs have been run...
Forum: Fuel Injection Systems 06-29-2021, 02:54 PM
Replies: 29
Views: 6,803
Posted By rv6ejguy
Closing Early These Days

With the heat up here now, it's become pretty unpleasant in the hangar upstairs after about 1300 or so we're outta there around this time.

I'm starting a little earlier now, around 0600 to make up...
Forum: Electrical Systems 06-25-2021, 09:35 PM
Replies: 47
Views: 3,971
Posted By rv6ejguy
You could also use a bolted bearing capture for...

You could also use a bolted bearing capture for the outer race as some alternators use and thread the center shaft to capture the inner race with a small bolt and washer. I used this method on my...
Forum: Electrical Systems 06-25-2021, 04:09 PM
Replies: 47
Views: 3,971
Posted By rv6ejguy
By using a steel bearing capture, they can keep...

By using a steel bearing capture, they can keep the thermal expansion rate the same as the steel bearing. Could get away with a lighter press fit than in an aluminum housing.
Forum: Electrical Systems 06-25-2021, 01:58 PM
Replies: 47
Views: 3,971
Posted By rv6ejguy
Denso has figured all this out years ago in the...

Denso has figured all this out years ago in the automotive world with obviously good design and materials. They are one of the if not the largest suppliers of alternators in the world for good...
Forum: Electrical Systems 06-25-2021, 08:54 AM
Replies: 47
Views: 3,971
Posted By rv6ejguy
In flight, I think you'll find that the flywheel...

In flight, I think you'll find that the flywheel doesn't get very hot in standard setups. With any kind of spinner gap, the high pressure airflow there flows right over it. The amount of air would...
Forum: Electrical Systems 06-25-2021, 07:40 AM
Replies: 47
Views: 3,971
Posted By rv6ejguy
I don't find that so interesting since it's...

I don't find that so interesting since it's fairly certain that high side loading isn't the cause of the other bearing failures either and certainly not the cause of outer bearing races spinning in...
Forum: Electrical Systems 06-25-2021, 06:02 AM
Replies: 47
Views: 3,971
Posted By rv6ejguy
I does seem that pre 2011 or so units were pretty...

I does seem that pre 2011 or so units were pretty good, I know one guy with over 1700 hours on his. Not sure of the year parts production was switched offshore.
Forum: Fuel Injection Systems 06-24-2021, 07:48 PM
Replies: 12
Views: 1,318
Posted By rv6ejguy
Most of our RV customers buy the dual ECU setup....

Most of our RV customers buy the dual ECU setup. All critical sensors are redundant with 2 fuel pumps as well. Only critical non-redundant part is the injectors and we have not seen one of those fail...
Forum: Electrical Systems 06-24-2021, 07:41 PM
Replies: 47
Views: 3,971
Posted By rv6ejguy
Again, Dan has done a good service for PP...

Again, Dan has done a good service for PP alternator owners here on VAF on what to look out for. Hartzell knows about the issue but believes it's excessive belt tension? Bearing races spinning in the...
Forum: Traditional Aircraft Engines 06-24-2021, 04:50 PM
Replies: 63
Views: 4,488
Posted By rv6ejguy
Agreed. I've seen a lot of weird engine problems...

Agreed. I've seen a lot of weird engine problems over the years but never this. Added to my mental archive...
Forum: Fuel Injection Systems 06-24-2021, 01:38 PM
Replies: 12
Views: 1,318
Posted By rv6ejguy
Cause was the fuel pumps signed off when the...

Cause was the fuel pumps signed off when the single breaker they were fed from (both pumps plus the hydraulic pump!) tripped as the gear was cycled.

As I said, most failures are due to bad layout,...
Forum: Electrical Systems 06-24-2021, 10:44 AM
Replies: 47
Views: 3,971
Posted By rv6ejguy
My experiences mirror Bill's in automotive use....

My experiences mirror Bill's in automotive use. Seen multiple Denso, Bosch and Hitachi alternators go 5000-7500 hours with the bearings still fine. Brushes worn down to nubs in something like 4000...
Forum: Fuel Injection Systems 06-24-2021, 07:44 AM
Replies: 12
Views: 1,318
Posted By rv6ejguy
We looked at trying to automate ECU switch over...

We looked at trying to automate ECU switch over years ago but after looking at how many different ways something COULD fail and permutations of those ways, it would be very hard to write software to...
Forum: Fuel Injection Systems 06-24-2021, 07:36 AM
Replies: 29
Views: 6,803
Posted By rv6ejguy
Thanks. We very much appreciate your comment here.

Thanks. We very much appreciate your comment here.
Forum: Fuel Injection Systems 06-24-2021, 06:31 AM
Replies: 12
Views: 1,318
Posted By rv6ejguy
I can only state from our experience in the field...

I can only state from our experience in the field with around 1400 aircraft and 400,000+ flight hours over 26 years on single ECU aircraft. Zero ECU failures to our knowledge. With an additional...
Forum: Fuel Injection Systems 06-23-2021, 02:26 PM
Replies: 29
Views: 6,803
Posted By rv6ejguy
Update

So far, most of our vendors have been able to keep supplying us with minimal delays or we've found alternate ones.

As of today, our order backlog sits at 6-8 weeks on EM-5 and CPI-2 kits.

CPIs can...
Forum: RV-9/9A 06-22-2021, 10:57 PM
Replies: 30
Views: 4,737
Posted By rv6ejguy
Great post Greg and yes, the -9 is an awesome...

Great post Greg and yes, the -9 is an awesome design.
Forum: RV-10 06-22-2021, 12:17 PM
Replies: 3
Views: 537
Posted By rv6ejguy
The Walbro pumps we use are actually a gerotor...

The Walbro pumps we use are actually a gerotor design. These tend to prime faster and pull more head than impeller or roller vane designs in our experience.
Forum: Alternative Engines 06-17-2021, 08:44 PM
Replies: 754
Views: 184,948
Posted By rv6ejguy
Thanks for the update. Congrats on the 100 hour...

Thanks for the update. Congrats on the 100 hour mark.
Forum: Alternative Engines 06-12-2021, 09:25 PM
Replies: 131
Views: 62,107
Posted By rv6ejguy
The Corsair guy posted here a few times. Seems...

The Corsair guy posted here a few times. Seems liability will prevent them from trying to certify it in the US.
Forum: RV-10 06-08-2021, 07:56 PM
Replies: 12
Views: 2,470
Posted By rv6ejguy
Carb or FI? Mags or EI? Thanks.

Carb or FI? Mags or EI? Thanks.
Forum: RV-14 06-08-2021, 09:12 AM
Replies: 46
Views: 9,554
Posted By rv6ejguy
I'm not aware of any 390s routinely burning 91...

I'm not aware of any 390s routinely burning 91 mogas but several AV 360s and a number of PV engines with higher than stock compression ratios. I think Toobuilder has been burning 87 octane in his PV...
Forum: RV-12/RV-12iS 06-08-2021, 05:47 AM
Replies: 6
Views: 1,019
Posted By rv6ejguy
I did a bifilar suspension on my prop when...

I did a bifilar suspension on my prop when running a torsional vibration analysis on my engine and gearbox. Video here: https://www.youtube.com/watch?v=D2vtig-E11k
Forum: RV-10 06-07-2021, 08:10 AM
Replies: 12
Views: 2,470
Posted By rv6ejguy
Very good numbers Larry. Thanks.

Very good numbers Larry. Thanks.
Forum: RV-10 06-06-2021, 04:54 PM
Replies: 12
Views: 2,470
Posted By rv6ejguy
I was looking for cruise numbers at 8-17K, WOT,...

I was looking for cruise numbers at 8-17K, WOT, corresponding to 80% to roughly 50% power depending on RPM and ram air efficiency.

Power is affected by RPM, MAP, OAT and exhaust back pressure, plus...
Forum: RV-14 06-06-2021, 11:41 AM
Replies: 46
Views: 9,554
Posted By rv6ejguy
We generally recommend no more than 16 deg of...

We generally recommend no more than 16 deg of total timing on AV engines burning 91 mogas at MAP above 26 inches. You can slowly advance timing as MAP decreases.

This will cause a slight loss of...
Forum: RV-10 06-05-2021, 08:23 AM
Replies: 12
Views: 2,470
Posted By rv6ejguy
Thanks. I remember seeing this before but...

Thanks. I remember seeing this before but couldn't find it.
Forum: RV-10 06-04-2021, 09:16 PM
Replies: 12
Views: 2,470
Posted By rv6ejguy
RV-10 Performance Numbers

I am working on a new video comparing a bunch of 4 place airplanes and wanted to get some real numbers for the RV-10.

Looking for empty weight, gross, ROC at gross, Cruise speed at 8, 12 and...
Forum: RV-14 06-01-2021, 07:49 AM
Replies: 19
Views: 3,115
Posted By rv6ejguy
I'd be surprised if the turbocharger stays in...

I'd be surprised if the turbocharger stays in place for very long. It appears to only be supported by the headers and I don't see any slip joints or bellows there to take up thermal...
Forum: RV General Discussion/News 05-31-2021, 10:25 PM
Replies: 80
Views: 9,194
Posted By rv6ejguy
Lycomings are running on mogas too but that's not...

Lycomings are running on mogas too but that's not really part of this discussion.
Forum: RV General Discussion/News 05-31-2021, 08:03 PM
Replies: 80
Views: 9,194
Posted By rv6ejguy
I don't see Swift and GAMI joining forces as they...

I don't see Swift and GAMI joining forces as they are competitors. I see possibly both meeting a slightly revised ASTM spec and having approval to be mixed if both make it to market, much like you...
Forum: RV General Discussion/News 05-31-2021, 06:20 PM
Replies: 80
Views: 9,194
Posted By rv6ejguy
A lot of testing in the '50s and even indeed...

A lot of testing in the '50s and even indeed today use single cylinder CFR engines to explore detonation limits with different fuels. The CR can be easily changed on these or in the case of aviation...
Forum: RV General Discussion/News 05-31-2021, 03:18 PM
Replies: 80
Views: 9,194
Posted By rv6ejguy
I received a reply form GAMI today on their...

I received a reply form GAMI today on their G100UL fuel today. They reported that they are very close to having their STC approved and that specific gravity is only very slightly higher than 100LL...
Showing results 1 to 64 of 500

 
Forum Jump

All times are GMT -6. The time now is 03:59 AM.


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.