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Search took 0.00 seconds. Search: Posts Made By: Joey
Forum: RV General Discussion/News 05-02-2007, 02:18 AM
Replies: 22
Views: 3,326
Posted By Joey
Has to be greater than 200, the Arrow won't do.

Has to be greater than 200, the Arrow won't do.
Forum: Safety 04-29-2007, 07:19 AM
Replies: 55
Views: 9,571
Posted By Joey
Ok, I thought you meant a high-power setting when...

Ok, I thought you meant a high-power setting when you said "climbout."
Forum: Safety 04-29-2007, 05:13 AM
Replies: 55
Views: 9,571
Posted By Joey
Pete, are you saying that you are running at 39...

Pete, are you saying that you are running at 39 degrees before TDC at high power settings? If so, I think that's WAY too advanced and will certainly cause high CHT's, if not much worse.
Forum: RV-12/RV-12iS 10-13-2006, 03:12 PM
Replies: 181
Views: 32,675
Posted By Joey
I think the reasoning is that an inexperienced...

I think the reasoning is that an inexperienced pilot is more likely to get himself in trouble with a fast airplane, as opposed to a powerful one. I agree with that.
Forum: Propellers 10-12-2006, 03:50 PM
Replies: 15
Views: 2,321
Posted By Joey
Yes, the propeller governor contains an oil pump...

Yes, the propeller governor contains an oil pump to boost the pressure to what is required to actuate the propeller. My manual lists 180-300 psi as being common. I personally have worked with systems...
Forum: Propellers 10-11-2006, 04:04 PM
Replies: 33
Views: 5,426
Posted By Joey
That is a handy tool. I'm glad to see this...

That is a handy tool. I'm glad to see this included:

http://i35.photobucket.com/albums/d156/berkut77777/torque.gif

Also, thanks to Dan C. for adding that caution notice to his online calculator.
Forum: Propellers 10-11-2006, 03:02 PM
Replies: 15
Views: 2,321
Posted By Joey
No, you're looking at 200-300 psi. Don't skimp...

No, you're looking at 200-300 psi.

Don't skimp on this line. It isn't the place to save money.
Forum: Propellers 10-11-2006, 01:49 PM
Replies: 33
Views: 5,426
Posted By Joey
Only if it adds the effective length of the tool....

Only if it adds the effective length of the tool. A crow's foot oriented 90 degrees to the wrench does not add to the effective length and adds no mechanical advantage.
Forum: Propellers 10-11-2006, 01:46 PM
Replies: 33
Views: 5,426
Posted By Joey
Yes. Anthing other than 90 degrees will change...

Yes. Anthing other than 90 degrees will change the mechanical advantage.
I can see how it would appear so, but once you do the math it becomes clear.
I do it every day. Sometimes that's what it takes...
Forum: Propellers 10-11-2006, 01:01 AM
Replies: 33
Views: 5,426
Posted By Joey
Your A&P friend is correct. I don't want to...

Your A&P friend is correct.

I don't want to sound rude, but there is some very dangerous advice being given in here. Advice that could lead to people improperly torquing their propellers.
Absolutely...
Forum: Traditional Aircraft Engines 09-26-2006, 12:58 AM
Replies: 17
Views: 3,633
Posted By Joey
It might have had a piece of debris in there,...

It might have had a piece of debris in there, causing the ball to be held off the seat and lose a bit of oil pressure.
Forum: Traditional Aircraft Engines 08-14-2006, 08:09 PM
Replies: 10
Views: 1,875
Posted By Joey
I don't have any timing curves sitting in front...

I don't have any timing curves sitting in front of me- Does any EI system actually retard the timing to later than the magneto at high power settings? I'm not sure if any of them actually do, but I...
Forum: Traditional Aircraft Engines 08-14-2006, 03:59 PM
Replies: 10
Views: 1,875
Posted By Joey
In my Recip Troubleshooting class in college, the...

In my Recip Troubleshooting class in college, the professors would intentionally mix up the leads. To this day I still don't trust the markings. :)
Forum: Traditional Aircraft Engines 08-12-2006, 10:50 PM
Replies: 34
Views: 4,601
Posted By Joey
Do you do it by adjusting the ignition timing?

Do you do it by adjusting the ignition timing?
Forum: Traditional Aircraft Engines 08-05-2006, 10:27 PM
Replies: 142
Views: 15,640
Posted By Joey
Thanks for a great post, Walter.

Thanks for a great post, Walter.
Forum: RV General Discussion/News 07-28-2006, 03:52 PM
Replies: 29
Views: 2,930
Posted By Joey
Peterson Aviation has done extensive testing on...

Peterson Aviation has done extensive testing on auto fuel use in aircraft engines. They sell auto fuel STCs. You can see a list of engines on their website, www.autofuelstc.com
So close as to be...
Forum: RV General Discussion/News 07-28-2006, 04:20 AM
Replies: 29
Views: 2,930
Posted By Joey
Van's RV-9A, N129RV, burned 6.1gph at 179.6mph...

Van's RV-9A, N129RV, burned 6.1gph at 179.6mph (29.4mpg) when tested by the Cafe Foundation. Power was provided by a 160 horse O-320. That engine can be operated on premium automotive gasoline, too.
Forum: Traditional Aircraft Engines 07-10-2006, 02:18 AM
Replies: 5
Views: 1,207
Posted By Joey
O-320's seem to last forever anyway. In my...

O-320's seem to last forever anyway. In my opinion, the use of roller tappets to "cure" camshaft galling in an O-320 is a solution in search of a problem. I would get the cheaper engine and put the...
Forum: RV-12/RV-12iS 07-08-2006, 09:09 PM
Replies: 35
Views: 6,496
Posted By Joey
Don't forget the removable wings. There are some...

Don't forget the removable wings. There are some places where hangars are very expensive or not available at all.

Also, some people may willing to build but not take on a 2-3 year project. The -12...
Forum: RV General Discussion/News 07-07-2006, 08:19 PM
Replies: 26
Views: 6,165
Posted By Joey
I transition from left-handed stick to...

I transition from left-handed stick to right-handed stick to yoke all the time. It's a total non-issue.
Forum: RV General Discussion/News 07-07-2006, 08:16 PM
Replies: 11
Views: 1,288
Posted By Joey
I'm hoping for some two-stroke engines running...

I'm hoping for some two-stroke engines running biodiesel.

The most likely scenario is most airplanes will be modified to use automotive gasoline.
Forum: Electrical Systems 06-30-2006, 01:13 AM
Replies: 133
Views: 18,480
Posted By Joey
The requirement for a type certified aircraft to...

The requirement for a type certified aircraft to have certain fuses that are accessible in flight is 23.157(d), which states:I know that doesn't apply to us, but I thought it was worth mentioning....
Forum: Traditional Aircraft Engines 06-29-2006, 10:34 PM
Replies: 20
Views: 8,247
Posted By Joey
100LL is ~$2 a gallon higher than even premium...

100LL is ~$2 a gallon higher than even premium autogas in my area. If you fly 200 hours a year at an average of 8gph, that's a savings of $3,200. This doesn't take into account that some states will...
Forum: RV General Discussion/News 06-28-2006, 11:58 AM
Replies: 40
Views: 9,858
Posted By Joey
This keeps coming up, and I just don't understand...

This keeps coming up, and I just don't understand why. There is no such requirement. I can't even find a hint of such a requirement, but I might have missed it and would appreciate if someone would...
Forum: RV-12/RV-12iS 06-28-2006, 01:50 AM
Replies: 98
Views: 10,007
Posted By Joey
Have you ever flown a Cardinal?

Have you ever flown a Cardinal?
Forum: RV General Discussion/News 06-27-2006, 01:26 AM
Replies: 40
Views: 9,858
Posted By Joey
There is no requirement that the experience be...

There is no requirement that the experience be supervised by an A&P or IA.
Forum: RV General Discussion/News 06-26-2006, 12:14 PM
Replies: 40
Views: 9,858
Posted By Joey
It is possible to use experience gained by...

It is possible to use experience gained by building an experimental to obtain an A&P certificate.

Order 8300.10 - Airworthiness Inspector's Handbook...
Forum: RV General Discussion/News 06-26-2006, 01:02 AM
Replies: 40
Views: 9,858
Posted By Joey
Hey, speak for yourself, buddy. ;)

Hey, speak for yourself, buddy. ;)
Forum: Traditional Aircraft Engines 06-25-2006, 03:50 AM
Replies: 8
Views: 1,649
Posted By Joey
Van's prototype -9a had an O-235.

Van's prototype -9a had an O-235.
Forum: RV-12/RV-12iS 06-13-2006, 03:58 AM
Replies: 53
Views: 7,299
Posted By Joey
You must have more information about their...

You must have more information about their finances than I do. I've never seen them release that kind of information to the public.
Forum: RV-12/RV-12iS 06-12-2006, 12:22 PM
Replies: 53
Views: 7,299
Posted By Joey
Of course they are. How else are they going to...

Of course they are. How else are they going to pay for it?
Forum: RV-12/RV-12iS 06-09-2006, 03:10 PM
Replies: 53
Views: 7,299
Posted By Joey
RVbySDI and Phyrcooler: A Cessna 172 costs...

RVbySDI and Phyrcooler:

A Cessna 172 costs $172,500. At what price do you think Cessna could sell that airplane for and still make money? How much are they making off that one airplane?
Forum: RV-12/RV-12iS 05-30-2006, 02:45 PM
Replies: 8
Views: 1,791
Posted By Joey
Use of pulled rivets in the RV-12 is not a...

Use of pulled rivets in the RV-12 is not a shortcut in the building process. It was designed by an engineer to use exactly this type of construction. Pulled rivets are perfectly acceptable as long as...
Forum: Close Calls / Lessons Learned 05-29-2006, 11:33 AM
Replies: 21
Views: 3,790
Posted By Joey
I'm not sure I follow your reasoning. A 500 foot...

I'm not sure I follow your reasoning. A 500 foot pressure change every minute is going to be the same whether you are doing 50 knots or 500. How does a higher airspeed lessen the effects on the ears...
Forum: Traditional Aircraft Engines 05-19-2006, 07:56 PM
Replies: 59
Views: 10,618
Posted By Joey
That's a very good point. Given these...

That's a very good point. Given these shortcomings, I think we can both agree that it's important to give ourselves a healthy margin of error when it comes to detonation.

What range of mixtures...
Forum: Traditional Aircraft Engines 05-19-2006, 06:21 PM
Replies: 59
Views: 10,618
Posted By Joey
How much is too much, exactly?

How much is too much, exactly?
Forum: Traditional Aircraft Engines 05-19-2006, 01:47 PM
Replies: 59
Views: 10,618
Posted By Joey
Yes, I do think the confusion was in the wording....

Yes, I do think the confusion was in the wording. If I should interpret you as meaning "Detonation may be caused by improper leaning" then I can certainly agree.

I don't envision a "stop" at peak...
Forum: Traditional Aircraft Engines 05-19-2006, 11:45 AM
Replies: 59
Views: 10,618
Posted By Joey
I don't speak for Mr. Atkinson, but he probably...

I don't speak for Mr. Atkinson, but he probably didn't mention it because it isn't true. When operating lean of peak EGT, the detonation margin increases as the mixture is leaned.

I think the notion...
Forum: Traditional Aircraft Engines 05-19-2006, 11:00 AM
Replies: 30
Views: 5,010
Posted By Joey
Lycoming's statement is misleading. An engine...

Lycoming's statement is misleading. An engine with poor mixture distribution will run rough due to the power imbalance between cylinders long before it actually reaches the point of lean misfire.
Forum: Alternative Engines 05-17-2006, 12:57 PM
Replies: 6
Views: 2,202
Posted By Joey
That's interesting, N129RV had an O-320-D3G with...

That's interesting, N129RV had an O-320-D3G with an MT three-blade prop at the time of the Cafe Foundation report. I wonder when it changed and how the performance was affected?As a side note, 91...
Forum: RV General Discussion/News 05-17-2006, 11:30 AM
Replies: 8
Views: 1,209
Posted By Joey
No, the annual inspection must be performed by...

No, the annual inspection must be performed by someone with an Inspection Authorization.

This is why I don't like to refer to the yearly condition inspection on a homebuilt as an "annual." They are...
Forum: RV General Discussion/News 05-17-2006, 01:05 AM
Replies: 8
Views: 1,209
Posted By Joey
You don't have to be an A&P to maintain a...

You don't have to be an A&P to maintain a homebuilt. The exception would be the yearly condition inspection, which has to be performed by an A&P or the holder of the repairman certificate.
Forum: Traditional Aircraft Engines 05-13-2006, 02:14 PM
Replies: 224
Views: 24,899
Posted By Joey
I would like to kindly suggest that you follow...

I would like to kindly suggest that you follow your own advice:

Like I said, if I have posted inaccurate information, please bring the proof and correct me. The bottom line is I haven't, and you...
Forum: Traditional Aircraft Engines 05-13-2006, 01:35 PM
Replies: 224
Views: 24,899
Posted By Joey
They advise me to not run LOP because they are of...

They advise me to not run LOP because they are of the opinion that I can't handle the extra workload. I know my skills better than they do, so I choose to ignore that particular bit of advice. How do...
Forum: Traditional Aircraft Engines 05-12-2006, 04:56 PM
Replies: 224
Views: 24,899
Posted By Joey
Actually, I made my point with Van's RV-9A...

Actually, I made my point with Van's RV-9A prototype which has an O-320 equipped with magnetos and a carburetor. No fancy hardware there.

Okay, had to come back and edit this post. Yukon, we seem...
Forum: Traditional Aircraft Engines 05-11-2006, 04:35 PM
Replies: 224
Views: 24,899
Posted By Joey
You misunderstand, I'm not advocating...

You misunderstand, I'm not advocating anything.

If someone tells me they are installing an O-235 in their -9 or they like to run full rich all the time, I say good for them! It's your airplane, do...
Forum: Traditional Aircraft Engines 05-11-2006, 04:00 AM
Replies: 224
Views: 24,899
Posted By Joey
The point is that a turbocharged engine in this...

The point is that a turbocharged engine in this case is the worst scenario, yet even Lycoming is forced to admit that there is nothing detrimental in operating it lean of peak EGT. If there is...
Forum: RV General Discussion/News 05-10-2006, 05:24 PM
Replies: 64
Views: 6,874
Posted By Joey
With just having the video to go by, I can't see...

With just having the video to go by, I can't see any evidence of him violating 91.119.

I'm sure someone could make a case for 91.13, but if zooming down a river at 50 feet and 200mph in an airplane...
Forum: Traditional Aircraft Engines 05-10-2006, 04:41 PM
Replies: 224
Views: 24,899
Posted By Joey
Here's what they say about operating on the lean...

Here's what they say about operating on the lean side of peak EGT:

I linked to the rest of the article. Their concerns focus mainly on the human factors when operating lean of peak, not technical...
Forum: RV General Discussion/News 05-10-2006, 12:49 AM
Replies: 64
Views: 6,874
Posted By Joey
Just a heads up, I'll likely take that video down...

Just a heads up, I'll likely take that video down sometime this weekend or shortly after. You might want to save it to your computer. I should probably spare my alma mater the bandwidth since they...
Forum: RV-9/9A 05-10-2006, 12:43 AM
Replies: 22
Views: 4,093
Posted By Joey
Wherever you want it to. Look, I'm not trying to...

Wherever you want it to. Look, I'm not trying to convince you not to use an O-235 in your -9. That's your choice. Other people reading this forum haven't yet made that choice. If you're going to post...
Forum: RV-9/9A 05-09-2006, 11:23 PM
Replies: 22
Views: 4,093
Posted By Joey
Here's something else that's very important to...

Here's something else that's very important to note while we are on the subject. Just because an O-320 isn't being operated at full power doesn't necessarily mean that it's being throttled back. You...
Forum: RV-9/9A 05-09-2006, 11:02 PM
Replies: 22
Views: 4,093
Posted By Joey
That's not the contention at all. The question...

That's not the contention at all.

The question is, "Can an O-320 powered RV-9 match the fuel efficiency of an O-235 powered RV-9?" Since we have data for both, we know the answer is yes. That's...
Forum: RV-9/9A 05-09-2006, 07:04 PM
Replies: 22
Views: 4,093
Posted By Joey
You are arguing a point I did not make, as what I...

You are arguing a point I did not make, as what I said doesn't contradict that.

What I said was that it takes a certain amount of power to move an aircraft through the air at a certain speed. You...
Forum: Alternative Engines 05-09-2006, 06:05 PM
Replies: 44
Views: 4,885
Posted By Joey
I'll give you this one. The reason aircraft...

I'll give you this one. The reason aircraft engines are so expensive is because there is a limited market for them. All other reasons are relatively insignificant by comparison.

I understand your...
Forum: RV-9/9A 05-06-2006, 06:02 PM
Replies: 22
Views: 4,093
Posted By Joey
As a general statement, it's true enough. It...

As a general statement, it's true enough. It takes X amount of power to go Y speed. You can usually produce that power more efficiently with a larger engine. We don't all have IO-540s because they...
Forum: RV General Discussion/News 05-06-2006, 10:39 AM
Replies: 64
Views: 6,874
Posted By Joey
You can get it here: http://www.mtsu.edu/~jlm3x/

You can get it here:
http://www.mtsu.edu/~jlm3x/
Forum: RV-9/9A 04-28-2006, 02:13 AM
Replies: 16
Views: 2,477
Posted By Joey
The Cafe Foundation did a little better with the...

The Cafe Foundation did a little better with the -9A, coming in at 179.6 smph at 6.1 gph. That's just a hair shy of 30 mpg. I wouldn't consider 180mph as just limping home to save gas, either. I...
Forum: Traditional Aircraft Engines 04-25-2006, 06:57 PM
Replies: 8
Views: 1,345
Posted By Joey
Anyone know the compression ratio?

Anyone know the compression ratio?
Forum: Traditional Aircraft Engines 04-24-2006, 06:43 AM
Replies: 18
Views: 5,836
Posted By Joey
I have nothing to add other than it drives me...

I have nothing to add other than it drives me crazy that Aerosport Power uses the term "naturally aspirated" to mean "not fuel injected" in their FAQ.

I know they have a stellar reputation, I'm just...
Forum: Traditional Aircraft Engines 04-19-2006, 12:28 AM
Replies: 31
Views: 7,752
Posted By Joey
Do you any specific performance goals in mind?...

Do you any specific performance goals in mind? The factory RV-9a pulls off 180mph at 6gph with a carbed o-320... That's pretty freakin good in my book.

That kind of performance makes you wonder if...
Forum: RV-9/9A 04-19-2006, 12:18 AM
Replies: 8
Views: 949
Posted By Joey
The DA-20 is a fantastic little airplane. The 172...

The DA-20 is a fantastic little airplane. The 172 feels like a truck by comparison. Personally, I'd choose it over the 172 even if it was more expensive.
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