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Search: Posts Made By: N941WR
Forum: Electronic Ignition Systems 05-31-2020, 07:57 AM
Replies: 87
Views: 7,317
Posted By N941WR
Be sure the battery power supply is operating,...

Be sure the battery power supply is operating, and the starter is good, as they form the backup plan if it won't restart on internal generator power alone, with bus power off.[/QUOTE]

Dan, In the...
Forum: Electronic Ignition Systems 05-31-2020, 06:33 AM
Replies: 87
Views: 7,317
Posted By N941WR
I have come to believe that selecting an ignition...

I have come to believe that selecting an ignition is a bit like selecting a religion; you either follow the gourd or you follow the sandal.
Forum: RV General Discussion/News 05-30-2020, 07:10 PM
Replies: 34
Views: 2,616
Posted By N941WR
Agreed. What would be cool to know but not...

Agreed.

What would be cool to know but not available from Van's is the speed, FF, and range at 65% power for each model. I see those numbers published more for certified aircraft.
Forum: RV-10 05-30-2020, 05:39 PM
Replies: 33
Views: 2,401
Posted By N941WR
As you build, you will place orders with Aircraft...

As you build, you will place orders with Aircraft Spruce or other suppliers. Each time you place such an order, have them toss in a bag of cotter pints, lock nuts, bolts, etc. (I bought one of...
Forum: RV General Discussion/News 05-30-2020, 05:33 PM
Replies: 10
Views: 636
Posted By N941WR
Congrats on adding the AP. On a nice day, when...

Congrats on adding the AP.

On a nice day, when you have some time, go fly, then remove the AP servo to bell crank link and see if you notice a difference. Only if you do back-to-back flights will...
Forum: Electronic Ignition Systems 05-30-2020, 05:28 PM
Replies: 87
Views: 7,317
Posted By N941WR
Are those certified as a component or as a...

Are those certified as a component or as a complete unit? I know they have EASA certification but that doesn't mean they have been blessed by the FAA.

Also, are they certified as independent...
Forum: Electronic Ignition Systems 05-30-2020, 04:42 PM
Replies: 87
Views: 7,317
Posted By N941WR
Bob, That thread is eight years old. A lot of...

Bob,

That thread is eight years old. A lot of changes have been made to the P-mags. That is also the 113 series P-mags.

In the intervening eight yeas Emag has released the 114 series P-mag which...
Forum: Electronic Ignition Systems 05-30-2020, 03:30 PM
Replies: 87
Views: 7,317
Posted By N941WR
In talking with Emag guys about this, they were...

In talking with Emag guys about this, they were told that to certify an electronic ignition, they need to certify the IC chip manufacturing process and software change control.

Since all the parts...
Forum: Electronic Ignition Systems 05-30-2020, 02:00 PM
Replies: 87
Views: 7,317
Posted By N941WR
Doesn't the SureFly require a breaker or fuse for...

Doesn't the SureFly require a breaker or fuse for it's power lead?

Also, no additional firewall penetration needed, jus run the power lead next to the P-lead.

It is good to hear SureFly's are...
Forum: Electronic Ignition Systems 05-30-2020, 01:05 PM
Replies: 87
Views: 7,317
Posted By N941WR
The SureFly ignitions do not have an internal...

The SureFly ignitions do not have an internal generator and unless you add a complex dual electrical buss system, you should continue to run them with a standard magneto on one side.


They are "FAA...
Forum: Electronic Ignition Systems 05-30-2020, 12:58 PM
Replies: 87
Views: 7,317
Posted By N941WR
My comment was in relation to a conversation I...

My comment was in relation to a conversation I had with an "unnamed" FAA staff member on the certification team.

I was asking about certifying ignitions and he volunteered, "If someone were to...
Forum: Electronic Ignition Systems 05-30-2020, 12:48 PM
Replies: 87
Views: 7,317
Posted By N941WR
The issues described above regarding lost timing...

The issues described above regarding lost timing of the P-mags was resolved five years ago with P-mag firmware version 40.

Yes, there were firmware and hardware issues. There still seems to be...
Forum: Electronic Ignition Systems 05-30-2020, 12:37 PM
Replies: 87
Views: 7,317
Posted By N941WR
That is the beauty of the P-mags, there is no...

That is the beauty of the P-mags, there is no trouble shooting or redundant power feed required as they have an internal generator.

If the P-lead is not grounded, they will switch over from ship's...
Forum: Traditional Aircraft Engines 05-30-2020, 12:12 PM
Replies: 75
Views: 12,283
Posted By N941WR
Walt, No, the P-mags do not need a dual buss...

Walt,

No, the P-mags do not need a dual buss because they will operate independently in the event of an electrical failure.

The problem here is the OP turned off the P-mags and didn't realize it...
Forum: Electronic Ignition Systems 05-29-2020, 08:21 PM
Replies: 87
Views: 7,317
Posted By N941WR
Neither have I. The forced landing just...

Neither have I.

The forced landing just discussed on this forum was the result of the builder not following the installation instructions and creating a single point of failure. It is difficult to...
Forum: Electronic Ignition Systems 05-29-2020, 08:17 PM
Replies: 87
Views: 7,317
Posted By N941WR
If you follow that thread all the way through,...

If you follow that thread all the way through, the builder did not follow the installation instructions and created a single point of failure for his P-mags by crimping both power feeds to one...
Forum: Electronic Ignition Systems 05-29-2020, 05:56 PM
Replies: 87
Views: 7,317
Posted By N941WR
FYI - the six cylinder P-mags are an entirely new...

FYI - the six cylinder P-mags are an entirely new architecture than the four cylinder version. These are entirely new ignitions. That means they may have no issues or they may have a bunch. The...
Forum: Traditional Aircraft Engines 05-29-2020, 01:07 PM
Replies: 75
Views: 12,283
Posted By N941WR
If you make the wrong choice John, I'm not sure...

If you make the wrong choice John, I'm not sure we can be friends anymore.
Forum: Traditional Aircraft Engines 05-29-2020, 09:58 AM
Replies: 75
Views: 12,283
Posted By N941WR
Are you implying that in an engine-out situation...

Are you implying that in an engine-out situation with dual PMags that an ignition check is not warranted and that you do not recommend one as part of an emergency check list.[/QUOTE]
Not at all. My...
Forum: RV-9/9A 05-29-2020, 12:37 AM
Replies: 85
Views: 7,798
Posted By N941WR
You really do need to do some research on the...

You really do need to do some research on the differences between Ground Speed, Indicated Air Speed, and True Air Speed!
Forum: Traditional Aircraft Engines 05-29-2020, 12:26 AM
Replies: 75
Views: 12,283
Posted By N941WR
This is why you need to provide separate power...

This is why you need to provide separate power and grounds to your P-mags!

This can't be stressed enough!

Also, the LED's on your P-mags should be either Red, Green, or off. If they are Orange,...
Forum: RV-9/9A 05-29-2020, 12:14 AM
Replies: 85
Views: 7,798
Posted By N941WR
A 180 hp -9 cannot hit 200 knots unless pointed...

A 180 hp -9 cannot hit 200 knots unless pointed downhill.

The -9 kits are roughly equal in price to the -7. The -14 kit is more expensive because of the higher level of refinement. Marketing has...
Forum: Traditional Aircraft Engines 05-28-2020, 10:35 PM
Replies: 75
Views: 12,283
Posted By N941WR
This issue was resolved a number of years ago and...

This issue was resolved a number of years ago and no longer applies.

However, your comment regarding ergonomics is spot on.
Forum: Safety 05-28-2020, 08:25 PM
Replies: 76
Views: 21,376
Posted By N941WR
Yep, and it is laid on top of the...

Yep, and it is laid on top of the cylinder.


IIRC, there were electronics up there that the builder was trying to protect.

Did you notice that the intercylinder baffles were on the top of the...
Forum: RV-9/9A 05-28-2020, 07:46 PM
Replies: 85
Views: 7,798
Posted By N941WR
Larry, It really doesn't matter what the CFI...

Larry,

It really doesn't matter what the CFI (mistakenly) thought, he was way over the indicated airspeed too.
Forum: Traditional Aircraft Engines 05-28-2020, 04:51 PM
Replies: 75
Views: 12,283
Posted By N941WR
OK, I figured it out

Lack of primer.

That or because it is a tipup-slider taildragger with a nosewheel.
Forum: RV General Discussion/News 05-28-2020, 04:43 PM
Replies: 10
Views: 770
Posted By N941WR
I'll take two!

I'll take two!
Forum: RV-9/9A 05-28-2020, 04:28 PM
Replies: 85
Views: 7,798
Posted By N941WR
Fair point; however, I always thought it was up...

Fair point; however, I always thought it was up the owner/pilot to make themselves familiar with the aircraft prior to flight.
Forum: RV-9/9A 05-28-2020, 04:08 PM
Replies: 85
Views: 7,798
Posted By N941WR
Why? They don't provide placards for all the...

Why? They don't provide placards for all the other things that we have to have in our planes.

Besides, most modern EFIS's scream at you if you approach Vne.

The OP has an early Dynon EFIS, so it...
Forum: RV-8/8A 05-28-2020, 02:22 PM
Replies: 10
Views: 1,057
Posted By N941WR
My -9 started life with a 140 hp (135 hp...

My -9 started life with a 140 hp (135 hp continuous) O-290d2 Lycoming.

It was a great engine for the airframe, if it is kept light. (Mine was 990 lbs for its first flight.) Cruise at 65% power was...
Forum: RV models of the future (RV-??) 05-28-2020, 01:49 PM
Replies: 536
Views: 159,119
Posted By N941WR
I found this on an thread...

I found this on an thread (http://www.vansairforce.com/community/showthread.php?t=115902) from 2016.

This is pretty much what Jay Pratt and I have been discussing, only it needs a backseat.
Forum: Traditional Aircraft Engines 05-28-2020, 01:16 PM
Replies: 75
Views: 12,283
Posted By N941WR
Brad, my issue only occurred during high power...

Brad, my issue only occurred during high power slow flight operations; power on stalls, slow flight, and dragging it in behind the aforementioned Cessna. Lucky for me, it restarted immediately once...
Forum: Traditional Aircraft Engines 05-28-2020, 12:40 PM
Replies: 75
Views: 12,283
Posted By N941WR
Please move the P-mag power grounds to separate...

Please move the P-mag power grounds to separate engine case bolts. You are trying to keep your engine running, not your firewall.

We have seen this cause problems before, but never an engine...
Forum: RV General Discussion/News 05-28-2020, 11:13 AM
Replies: 3
Views: 401
Posted By N941WR
Check your PM's.

Check your PM's.
Forum: RV-9/9A 05-28-2020, 09:46 AM
Replies: 85
Views: 7,798
Posted By N941WR
One thing that the OP proved is that the engine...

One thing that the OP proved is that the engine size has nothing to do with the ability of the airplane to exceed any V speed and regardless of the engine installed, it is up to the pilot to manage...
Forum: Safety 05-28-2020, 09:41 AM
Replies: 76
Views: 21,376
Posted By N941WR
Adding a second set of adel clamps reduces...

Adding a second set of adel clamps reduces vibration, thus reduces the chance of one of those lines cracking.

Unfortunately, this thread turned negative with a number of people wanting to attack the...
Forum: RV General Discussion/News 05-28-2020, 07:52 AM
Replies: 34
Views: 2,616
Posted By N941WR
The comparison I like to do, and don't see on...

The comparison I like to do, and don't see on your chart is to "normalize" the data, meaning for the -3, -4, -7, -8, and -9, list the numbers all with an (I)O-320 160 hp engine.

As I was looking at...
Forum: RV General Discussion/News 05-28-2020, 07:44 AM
Replies: 34
Views: 2,616
Posted By N941WR
The difference in wingspan is due to the narrower...

The difference in wingspan is due to the narrower fuselage of the -8.
Forum: RV-9/9A 05-28-2020, 07:07 AM
Replies: 85
Views: 7,798
Posted By N941WR
Earl, did you confuse TAS with GS? If not, I'm...

Earl, did you confuse TAS with GS? If not, I'm afraid I have to agree with the others.
Forum: Traditional Aircraft Engines 05-27-2020, 07:02 PM
Replies: 13
Views: 683
Posted By N941WR
There is a long running debate regarding...

There is a long running debate regarding performing preventative maintenance on a calendar or hours in use schedule vs. on condition.

Many times working parts are taken out of service for PM and...
Forum: RV General Discussion/News 05-27-2020, 04:04 PM
Replies: 9
Views: 708
Posted By N941WR
During our discussion, this thread...

During our discussion, this thread (http://www.vansairforce.com/community/showthread.php?t=114440) kept running through my mind.

It became very apparent that the guy who built this aircraft, even...
Forum: RV General Discussion/News 05-27-2020, 03:01 PM
Replies: 9
Views: 708
Posted By N941WR
Serial Builder vs. Single Builder & Long Time Owner

The other day I was having a discussion with some other RV builders and one of them proposed that a serial builder probably knew more about RV's than a person who has built one and maintained it for...
Forum: Electronic Ignition Systems 05-27-2020, 02:49 PM
Replies: 27
Views: 1,212
Posted By N941WR
No one is saying they can't fail, same as a Slick...

No one is saying they can't fail, same as a Slick mag or any other ignition.

We were pointing out that many of the issues reported were with early version of the ignitions software and hardware. ...
Forum: RV General Discussion/News 05-27-2020, 11:45 AM
Replies: 8
Views: 375
Posted By N941WR
Keep in mind that Lycoming's recommended oil...

Keep in mind that Lycoming's recommended oil temps are taken at the probe position, not the dipstick. Thus, your temps are in the correct range. If you go much lower, you will not boil off the...
Forum: Electronic Ignition Systems 05-27-2020, 11:31 AM
Replies: 27
Views: 1,212
Posted By N941WR
Ancient history, fixed many years...

Ancient history, fixed many years ago.

Carl[/QUOTE]
Exactly how I was going to respond.
Forum: RV-7/7A 05-27-2020, 10:12 AM
Replies: 18
Views: 1,058
Posted By N941WR
Here is what I posted on page 9 of this thread...

Here is what I posted on page 9 of this thread (http://www.vansairforce.com/community/showthread.php?t=49282) regarding the Sam James cowl.

One thing to keep in mind, the Sam James cowls and plenum...
Forum: RV-8/8A 05-27-2020, 10:04 AM
Replies: 10
Views: 1,057
Posted By N941WR
That would require a significantly longer engine...

That would require a significantly longer engine mount to compensate for the lighter weight.

Also, the RV-8 is designed for 150 to 210 hp engines.

You can added full electronic controls to a...
Forum: Electronic Ignition Systems 05-27-2020, 10:02 AM
Replies: 27
Views: 1,212
Posted By N941WR
The following assumes you have your P-mags timed...

The following assumes you have your P-mags timed to TDC.

If you attempt this, the P-mags will fire at 4.2 degrees after TDC when below 400 RPM's. It does this to assist in starting. Call it an...
Forum: Electronic Ignition Systems 05-27-2020, 09:56 AM
Replies: 27
Views: 1,212
Posted By N941WR
You mean those archaic tractor ignitions that are...

You mean those archaic tractor ignitions that are prone to failure at any time, without warning?
Forum: Electronic Ignition Systems 05-27-2020, 07:51 AM
Replies: 27
Views: 1,212
Posted By N941WR
The P-mags only check for the jumper at start-up....

The P-mags only check for the jumper at start-up. Once they are spinning, you could remove the jumper and it wouldn't matter.

Over the long weekend I helped two different local pilots with P-mag...
Forum: RV General Discussion/News 05-25-2020, 04:58 PM
Replies: 26
Views: 1,476
Posted By N941WR
Scroll down through these pictures ...

Scroll down through these pictures (https://get.google.com/albumarchive/105753675204407450112/album/AF1QipO7akjXbBcl7melwjwVsT847yjEUX4wdNTKLZPo), you will find a picture of my carb heater muff.
Forum: Traditional Aircraft Engines 05-25-2020, 04:27 PM
Replies: 13
Views: 955
Posted By N941WR
The thing is, if you find a good engine that...

The thing is, if you find a good engine that isn't quite right, you can change parts and reconfigure it to be what you want.
Forum: RV General Discussion/News 05-23-2020, 05:08 PM
Replies: 26
Views: 1,476
Posted By N941WR
You missed an answer that says, "No - I don't...

You missed an answer that says, "No - I don't have a CHT issue."
Forum: RV General Discussion/News 05-21-2020, 08:14 PM
Replies: 13
Views: 831
Posted By N941WR
Mel is spot on. When I was building I mentioned...

Mel is spot on.

When I was building I mentioned to someone at Van's that I wanted to build a tip-up taildragger and their response was that that was the lightest combination you could build.

Think...
Forum: RV General Discussion/News 05-21-2020, 05:43 PM
Replies: 30
Views: 3,733
Posted By N941WR
Thanks Scott! Claudio Tonnini built an -8 with...

Thanks Scott!

Claudio Tonnini built an -8 with that engine from a Van's kit, just before the engines became unavailable. Bummer because it is a really nice engine, different, but nice!
Forum: RV General Discussion/News 05-21-2020, 03:57 PM
Replies: 30
Views: 3,733
Posted By N941WR
Wasn't the RV-8 already approved for the 220 HP...

Wasn't the RV-8 already approved for the 220 HP Frankly six cylinder?
Forum: Temp / Test / Misc. (posts deleted after 2 weeks) 05-21-2020, 01:22 PM
Replies: 3
Views: 472
Posted By N941WR
There are a number already flying with this...

There are a number already flying with this engine and have been almost since it came out.
Forum: RV General Discussion/News 05-21-2020, 12:35 PM
Replies: 42
Views: 6,011
Posted By N941WR
That is well within Lycoming's limits for...

That is well within Lycoming's limits for continuous operation, not to mention climb.

What is your CHT in cruise?
Forum: RV General Discussion/News 05-21-2020, 12:24 PM
Replies: 13
Views: 831
Posted By N941WR
Q: Best mod for a -7A? A: Convert it to a -7!

Q: Best mod for a -7A?
A: Convert it to a -7!
Forum: RV General Discussion/News 05-20-2020, 02:29 PM
Replies: 13
Views: 1,627
Posted By N941WR
When are you going to raise the GW for the -9 to...

When are you going to raise the GW for the -9 to 1800 lbs and bless the parallel valve (I)O-360 in it, as long as the existing V speeds are observed?

You had to know someone was going to ask that...
Forum: West (and Southwest) 05-20-2020, 02:16 PM
Replies: 3
Views: 256
Posted By N941WR
Talk to your insurance company and ask them if...

Talk to your insurance company and ask them if you can get the time in any side-by-side tailwheel RV. That's what I did and they agreed.

Tony Phillips is a CFI and has a Dragon Tail -9. He might...
Forum: RV-8/8A 05-20-2020, 02:12 PM
Replies: 13
Views: 1,284
Posted By N941WR
Look up "Lowpass" here on the forum. He had an...

Look up "Lowpass" here on the forum. He had an O-320 in his -8 and then swapped it out for a 360.

Also check with Jay Pratt, he has flown -8's with the 320, and 180 HP O-360 and 200 HP IO-360. He...
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