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Search: Posts Made By: John Clark
Forum: Alternative Engines 01-04-2014, 11:35 AM
Replies: 63
Views: 13,332
Posted By John Clark
The Catch

As much fun as this speculation is, a little reality check is in order. The ongoing problem with turbine power in small GA aircraft is that the engines do not "scale" well. That is, the fuel burn...
Forum: Alternative Engines 01-03-2014, 11:53 PM
Replies: 63
Views: 13,332
Posted By John Clark
A type rating is required in a specific make and...

A type rating is required in a specific make and model of aircraft if the aircraft weighs more than 12,500 lb (5,700 kg) at takeoff or is powered by one or more turbojet engines.

Might make for an...
Forum: RV General Discussion/News 01-02-2014, 12:54 PM
Replies: 17
Views: 8,416
Posted By John Clark
As others have said, I subscribed for a couple of...

As others have said, I subscribed for a couple of years when i owned a Cessna. I found that the content went in a circle, with subjects repeating every year or so. There is not much new news...
Forum: RV-8/8A 12-10-2013, 02:25 PM
Replies: 42
Views: 11,409
Posted By John Clark
Yeah, the ongoing tandem vs side by side...

Yeah, the ongoing tandem vs side by side discussion misses a few important metrics. Height and leg length is a real issue. When I was considering an RV, my friend and frequent passenger, Ms. Lee (a...
Forum: Instrument Flight Rules 11-22-2013, 11:08 AM
Replies: 22
Views: 7,941
Posted By John Clark
Several years ago I was flamed for using the term...

Several years ago I was flamed for using the term "light IFR." Paul's definition is perfect. Being a left coaster there are plenty of times that an IFR departure is required, but there isn't any...
Forum: RV General Discussion/News 11-12-2013, 09:29 PM
Replies: 228
Views: 94,043
Posted By John Clark
Having always regretted selling my J3, I think...

Having always regretted selling my J3, I think the answer is to go with two airplanes to compliment my RV8. A J3 for low and slow and a TBM 850 for high and fast. Slight $$ issue though. ...
Forum: RV General Discussion/News 10-23-2013, 06:22 PM
Replies: 30
Views: 6,380
Posted By John Clark
Tom is being gentle, just remember that if a...

Tom is being gentle, just remember that if a retailer is paying all the shipping costs, even if it is your screw up, everyone is paying a little more even if you don't make an error. The expectation...
Forum: RV General Discussion/News 10-22-2013, 09:35 AM
Replies: 16
Views: 2,970
Posted By John Clark
http://video.oreillyauto.com/v/22811/ngk-spark-plu...

http://video.oreillyauto.com/v/22811/ngk-spark-plug-terminal-types/


John Clark ATP, CFI
FAAST Team Representative
EAA Flight Advisor
RV8 N18U "Sunshine"
KSBA
Forum: RV General Discussion/News 10-19-2013, 08:57 PM
Replies: 23
Views: 5,301
Posted By John Clark
Heck, I can routinely do that without a...

Heck, I can routinely do that without a crosswind. :rolleyes:

John Clark ATP, CFI
FAAST Team Representative
EAA Flight Advisor
RV8 N18U "Sunshine"
KSBA
Forum: RV-8/8A 10-07-2013, 10:07 PM
Replies: 1
Views: 1,196
Posted By John Clark
K&N 33-2060 John Clark ATP, CFI FAAST Team...

K&N 33-2060

John Clark ATP, CFI
FAAST Team Representative
EAA Flight Advisor
RV8 N18U "Sunshine"
KSBA
Forum: RV General Discussion/News 09-23-2013, 08:24 AM
Replies: 23
Views: 6,487
Posted By John Clark
In my experience there is one thing worse than...

In my experience there is one thing worse than the "social group" gathering that Brad mentions, anything promoted by a non-aviation group. Some well intentioned charities and non-profits have found...
Forum: California 09-17-2013, 02:37 PM
Replies: 6
Views: 1,360
Posted By John Clark
KPRB info: ...

KPRB info: http://www.airnav.com/airport/KPRB

Lots of great dining in Paso Robles, from down and dirty to very posh. Google "Paso Robles dining" and have a look around. Enjoy!

John Clark ATP,...
Forum: RV General Discussion/News 09-12-2013, 12:03 AM
Replies: 3
Views: 1,920
Posted By John Clark
Here is the link to the...

Here is the link to the report:

http://www.ntsb.gov/aviationquery/brief.aspx?ev_id=20130222X34048&key=1

John Clark ATP, CFI
FAAST Team Representative
EAA Flight Advisor
RV8 N18U "Sunshine"
KSBA
Forum: RV General Discussion/News 09-11-2013, 03:46 PM
Replies: 12
Views: 3,442
Posted By John Clark
Just remember the procedure for putting out the...

Just remember the procedure for putting out the resulting intake fire. :rolleyes:
But hey, it is good for washing the oil from the cylinder walls and the cool noise it will make when the fuel...
Forum: RV General Discussion/News 09-01-2013, 09:55 PM
Replies: 31
Views: 6,252
Posted By John Clark
50 hours, oil, strainer, and filter. Whatever...

50 hours, oil, strainer, and filter. Whatever floats your boat, but changing oil at 25 hours, half of the Lycoming recomendation, is like changing the oil in your car every 1000 miles. I know that...
Forum: RV General Discussion/News 08-25-2013, 05:29 PM
Replies: 34
Views: 8,933
Posted By John Clark
Many years ago I had a near miss with a jerk in a...

Many years ago I had a near miss with a jerk in a Cessna 210. I was flying a proper pattern to an uncontrolled airport and he opted for the straight in, with out listening to the frequency. Anyway,...
Forum: RV-12/RV-12iS 08-22-2013, 05:01 PM
Replies: 24
Views: 5,610
Posted By John Clark
The wind is the problem in this exercise. ...

The wind is the problem in this exercise. Relying on the forecast wind for a 20+ hour trip is a real gamble. I have a friend, a pro ferry pilot, that took a new Air Tractor to Australia some years...
Forum: RV General Discussion/News 08-21-2013, 05:11 PM
Replies: 30
Views: 6,757
Posted By John Clark
"By the book" (FARs) it is VFR if you are 1000...

"By the book" (FARs) it is VFR if you are 1000 feet above the layer below and 500 feet below the layer above and have 3 miles visibility. But let's get real. What does 500 feet below a layer look...
Forum: RV General Discussion/News 08-20-2013, 08:03 PM
Replies: 17
Views: 3,505
Posted By John Clark
If you don't register the airplane, it is not...

If you don't register the airplane, it is not airworthy in the FAA's eyes. Remember "ARROW?" Airworthiness, Registration, Radio License (optional now,) Operating Limitations, Weight and Balance. ...
Forum: RV-8/8A 08-16-2013, 06:08 PM
Replies: 157
Views: 73,388
Posted By John Clark
David is right about the C/S prop being a speed...

David is right about the C/S prop being a speed brake. Once mastered it can be a big help in approach and landing, but there is a learning curve. I went through the same experience years ago getting...
Forum: Safety 08-13-2013, 12:24 PM
Replies: 22
Views: 5,492
Posted By John Clark
Yes true. In fact in some cases the Cirrus...

Yes true. In fact in some cases the Cirrus accident rate is worse than non-BRS aircraft. Reading Cirrus accident reports, I think that there is an underlying psychological issue here called risk...
Forum: RV-8/8A 08-12-2013, 11:24 PM
Replies: 10
Views: 4,431
Posted By John Clark
With that much compression and P mags, you should...

With that much compression and P mags, you should do some research on the propeller you choose. Both compression and ignition can alter vibration issues.

John Clark ATP, CFI
FAAST Team...
Forum: RV General Discussion/News 08-11-2013, 06:21 PM
Replies: 38
Views: 17,223
Posted By John Clark
Here is a quote from Flying Magazine on the...

Here is a quote from Flying Magazine on the Cirrus system. I would imagine a somewhat smaller system, for a lighter aircraft, would be slightly less. Note that these costs do not include labor or...
Forum: Painting your RV 08-08-2013, 01:36 PM
Replies: 8
Views: 1,592
Posted By John Clark
I'm with Perry on this, the stripe on my '8'...

I'm with Perry on this, the stripe on my '8' starts out about 1 1/4 inch at the cowl and ends at the tail a solid 3/8 inch. When I look at some of the old spam can factory paint schemes I can't help...
Forum: Alternative Engines 08-07-2013, 11:35 AM
Replies: 32
Views: 7,444
Posted By John Clark
Yeah, but I really liked the one that went the...

Yeah, but I really liked the one that went the other way. :eek:

http://i382.photobucket.com/albums/oo261/captjsclark/radial_mc_zps11c3a875.jpg[/URL]

I wonder how far it goes between oil...
Forum: RV General Discussion/News 08-03-2013, 01:18 PM
Replies: 21
Views: 8,673
Posted By John Clark
Great shot, lots of celebrities in attendance!...

Great shot, lots of celebrities in attendance!

John Clark ATP, CFI
FAAST Team Representative
EAA Flight Advisor
RV8 N18U "Sunshine"
KSBA
Forum: Painting your RV 08-03-2013, 10:29 AM
Replies: 12
Views: 3,375
Posted By John Clark
That is the truth, a professional aircraft...

That is the truth, a professional aircraft painter and I went through about $60 worth of tape to layout the simple scheme on my '8'. The wad of used tape was the size of a volleyball....
Forum: RV General Discussion/News 08-01-2013, 05:48 PM
Replies: 161
Views: 35,147
Posted By John Clark
We have an interesting cultural thing here, most...

We have an interesting cultural thing here, most of the American public expects to be "sold." Van and company are, for lack of a better term, old fashioned. Come up with a great product, sell it at...
Forum: RV General Discussion/News 08-01-2013, 04:04 PM
Replies: 13
Views: 2,634
Posted By John Clark
From another perspective, I had a little over...

From another perspective, I had a little over 3500 hours of tailwheel time when I decided on my RV-8. Little wheel in the back, wouldn't have it any other way.

John Clark ATP, CFI
FAAST Team...
Forum: Traditional Aircraft Engines 07-31-2013, 12:39 PM
Replies: 12
Views: 2,684
Posted By John Clark
This exercise is more a PR stunt than a realistic...

This exercise is more a PR stunt than a realistic alternative to avgas. I can see limited applications, but the availability/infrastructure problem will make it impractical for a long time. All of...
Forum: Electrical Systems 07-30-2013, 01:26 PM
Replies: 34
Views: 6,341
Posted By John Clark
Virtually nil without an electrical load, you are...

Virtually nil without an electrical load, you are just spinning the shaft in bearings. The rule of thumb is about 1 horsepower for each 12 amps of output when loaded.

John Clark ATP, CFI
FAAST Team...
Forum: RV General Discussion/News 07-27-2013, 06:56 PM
Replies: 15
Views: 3,984
Posted By John Clark
Sadly, in view of some of the "reasons" offered,...

Sadly, in view of some of the "reasons" offered, it is the pilot. Walt for the win. :rolleyes:

John Clark ATP, CFI
FAAST Team Representative
EAA Flight Advisor
RV8 N18U "Sunshine"
KSBA
Forum: RV General Discussion/News 07-27-2013, 05:40 PM
Replies: 15
Views: 3,984
Posted By John Clark
In a B55, 90 knots is above Vmc and is 1.3+ Vso. ...

In a B55, 90 knots is above Vmc and is 1.3+ Vso. Yes, you are below "blue line" but you are not in a V1 cut condition. Losing an engine at 1000 AGL is much simpler than on takeoff at 50 feet....
Forum: RV General Discussion/News 07-27-2013, 12:11 PM
Replies: 15
Views: 3,984
Posted By John Clark
This issue has been discussed every year. Scott...

This issue has been discussed every year. Scott Card summed it up well earlier this month. "We do have this conversation each year don't we. I have the usual notam right here in front of me. Also,...
Forum: RV-12/RV-12iS 07-25-2013, 12:15 AM
Replies: 15
Views: 3,855
Posted By John Clark
You are "off the chart" at a DH of 9000. ...

You are "off the chart" at a DH of 9000.

http://www.vansaircraft.com/pdf/revisions/RV-12/User_Manuals/POH_180.pdf

Then go to Chapter 5, chart 5-3

John Clark ATP, CFI
FAAST Team...
Forum: RV-8/8A 07-11-2013, 08:03 AM
Replies: 9
Views: 3,135
Posted By John Clark
Christoph, Here is the NTSB report on the crash...

Christoph, Here is the NTSB report on the crash of N877TC. http://dms.ntsb.gov/aviation/AccidentReports/4yjpvp45utodqg45jonmqszs1/Y07112013120000.pdf

Looks like Mr. Waltz was the pilot, so that is...
Forum: RV-8/8A 07-11-2013, 02:21 AM
Replies: 9
Views: 3,135
Posted By John Clark
Here is a place to start, the airplane is...

Here is a place to start, the airplane is currently registered.

http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?NNumbertxt=877TC

John Clark ATP, CFI
Aviator & Gearhead
FAAST Team...
Forum: Traditional Aircraft Engines 07-02-2013, 09:15 AM
Replies: 61
Views: 15,050
Posted By John Clark
Thanks David, you saved me a lot of typing. In...

Thanks David, you saved me a lot of typing. In the real world, training never seems to cover what really happened. Too many possible combinations.

A couple of thoughts on stopping engines in...
Forum: RV Friends Who Have Passed On 06-30-2013, 01:21 PM
Replies: 16
Views: 10,106
Posted By John Clark
Pierre and Stephen, sorry about the bum link, it...

Pierre and Stephen, sorry about the bum link, it worked for me without a subscription. Ah, the Internet. Googling it initially, I found the usual assortment of misinformation, including "It was a...
Forum: RV Friends Who Have Passed On 06-29-2013, 08:05 PM
Replies: 16
Views: 10,106
Posted By John Clark
Rocket down at KOXR - Jim Ayers

http://www.vcstar.com/news/2013/jun/29/2-fatalities-reported-in-oxnard-plane-crash/

John Clark ATP, CFI
FAAST Team Representative
EAA Flight Advisor
RV8 N18U "Sunshine"
KSBA
Forum: Safety 06-26-2013, 11:37 AM
Replies: 30
Views: 8,055
Posted By John Clark
I used to work for this guy's clone. The lad was...

I used to work for this guy's clone. The lad was always going Mach 1 with his hair on fire. Lots of stories including taking off with the towbar still attaced to his Cessna 310. An electric...
Forum: RV-8/8A 06-25-2013, 02:55 PM
Replies: 28
Views: 6,928
Posted By John Clark
80041, 9/25/2003 John Clark ATP, CFI FAAST Team...

80041, 9/25/2003

John Clark ATP, CFI
FAAST Team Representative
EAA Flight Advisor
RV8 N18U "Sunshine"
KSBA
Forum: Safety 06-19-2013, 02:03 PM
Replies: 54
Views: 9,823
Posted By John Clark
Several good points in this thread, but we need...

Several good points in this thread, but we need to remember the human factor in this. OK, it is really the ego factor. In the scenario Bob describes, the answer is simple. First, admit early that...
Forum: Safety 06-18-2013, 11:16 PM
Replies: 17
Views: 3,650
Posted By John Clark
John is very correct, I would add one thing...

John is very correct, I would add one thing relating to "back to normal." Accomplished with the right attitude (mental) you should be back to "normal" hovever, I have witnessed several ugly outcomes...
Forum: RV General Discussion/News 06-18-2013, 10:52 AM
Replies: 3
Views: 2,040
Posted By John Clark
Having maintained a first class medical for the...

Having maintained a first class medical for the last 30+ years, I have learned a few lessons. First, know and understand the rules. Not the medical science, the procedures, as Mel pointed out, there...
Forum: RV General Discussion/News 06-04-2013, 01:44 AM
Replies: 11
Views: 4,239
Posted By John Clark
I'm with Mike, the only pull-tabs in my hangar...

I'm with Mike, the only pull-tabs in my hangar are in the fridge. :rolleyes:

John Clark ATP, CFI
FAAST Team Representative
EAA Flight Advisor
RV8 N18U "Sunshine"
KSBA
Forum: Safety 06-04-2013, 01:33 AM
Replies: 84
Views: 35,560
Posted By John Clark
Looking at the data, I see the same scenario. A...

Looking at the data, I see the same scenario. A common, but very wrong, reaction to a spin is full up elevator because the airplane is descending, and rudder to fight the rotation. just releasing...
Forum: RV General Discussion/News 05-30-2013, 10:57 AM
Replies: 17
Views: 3,506
Posted By John Clark
Actually, they did. FMS systems used VOR, GPS,...

Actually, they did. FMS systems used VOR, GPS, LORAN, and even NDB inputs. Operationally most of this was in the background, the system utilizing the best information. I used to fly a Collins...
Forum: RV Ongoing Maintenance Issues 05-29-2013, 10:03 AM
Replies: 18
Views: 6,996
Posted By John Clark
Bob, I was thinking more of a worst case scenario...

Bob, I was thinking more of a worst case scenario like a major detonation event. You are right, simple broken rings won't add much crankcase pressure. I have witnessed a piston failure like this in...
Forum: RV Ongoing Maintenance Issues 05-29-2013, 07:03 AM
Replies: 18
Views: 6,996
Posted By John Clark
As Joe Blank pointed out, the cockpit will smell...

As Joe Blank pointed out, the cockpit will smell like hot oil. My concern, although unlikely, is what happens if you do get a lot of crankcase pressure from a failure like a piston or piston ring...
Forum: RV General Discussion/News 05-17-2013, 10:05 AM
Replies: 57
Views: 12,247
Posted By John Clark
To expand on Mel's response, here is the wording...

To expand on Mel's response, here is the wording from AC 45-2D on the subject:

N-Number Legibility. The N-number is required to be legible and written in capital Roman style letters without any...
Forum: RV Ongoing Maintenance Issues 05-16-2013, 11:09 AM
Replies: 60
Views: 25,548
Posted By John Clark
Not really, the "good guy" price on a proper...

Not really, the "good guy" price on a proper filter is around $20, the usual retail on a NAPA 1515 is around $6, although the list price is $10.82 :eek: So the cost of my peace of mind is $28. a...
Forum: RV Ongoing Maintenance Issues 05-16-2013, 10:14 AM
Replies: 60
Views: 25,548
Posted By John Clark
First, I plan ahead and buy more than one filter...

First, I plan ahead and buy more than one filter at a time, saves on shipping and you can usually get a price break.

A rotax is not relying on as much oil cooling as the Lycoming is, less flow to...
Forum: RV Ongoing Maintenance Issues 05-16-2013, 07:42 AM
Replies: 60
Views: 25,548
Posted By John Clark
I agree with Walt on this issue, an oil filter is...

I agree with Walt on this issue, an oil filter is a bad place to get cheap. If you are really interested in using automotive filters, I suggest you spend a few minutes cutting an auto filter and an...
Forum: RV General Discussion/News 04-27-2013, 09:51 PM
Replies: 34
Views: 7,254
Posted By John Clark
This was the result of a very bumpy, offshore...

This was the result of a very bumpy, offshore wind day in SoCal. Straight and level, no aerobatics, on my to KSMO to meet my ladyfriend for lunch. Bumpy, but no...
Forum: Electrical Systems 04-27-2013, 11:45 AM
Replies: 14
Views: 4,519
Posted By John Clark
"Unexpected ways" is what causes a lot of grief. ...

"Unexpected ways" is what causes a lot of grief. I have flown several multi buss, multi alternator airliners that, we learned in training, had "gotchas," the ability to trash the part that was still...
Forum: Safety 04-16-2013, 06:44 PM
Replies: 18
Views: 3,527
Posted By John Clark
http://www.navcen.uscg.gov/?pageName=gpsServiceInt...

http://www.navcen.uscg.gov/?pageName=gpsServiceInterruptions


John Clark ATP, CFI
FAAST Team Representative
EAA Flight Advisor
RV8 N18U "Sunshine"
KSBA
Forum: Safety 04-16-2013, 06:14 PM
Replies: 18
Views: 3,527
Posted By John Clark
Flight Advisory (West)

GPS Interference testing Western US April 19 to May 03.

https://www.faasafety.gov/files/notices/2013/Apr/NSAWC_13-02_GPS_Flight_Advisory_.pdf

John Clark ATP, CFI
FAAST Team Representative
EAA...
Forum: RV-8/8A 04-08-2013, 03:51 PM
Replies: 6
Views: 2,043
Posted By John Clark
Pressure is a factor, but the flat spotting is a...

Pressure is a factor, but the flat spotting is a function of the tire design and the cord material. The flat spot will go away as the tires warm up, the problem is that it is hard to generate much...
Forum: RV-12/RV-12iS 04-05-2013, 02:20 PM
Replies: 9
Views: 1,982
Posted By John Clark
I agree, it is a shortcut. Also, as Bob...

I agree, it is a shortcut. Also, as Bob mentioned, there is a very good chance that the lens will have some paint on the inside when you are done. Plastic frequently has a static charge that will...
Forum: RV General Discussion/News 03-30-2013, 12:59 AM
Replies: 28
Views: 8,746
Posted By John Clark
Actually it is a GTA, The GTA was the same shape...

Actually it is a GTA, The GTA was the same shape as the GTV, but was built with aluminum external panels replacing the standard steel panels. The 'A' stood for "Alleggerita", Italian for...
Forum: RV General Discussion/News 03-29-2013, 04:45 PM
Replies: 28
Views: 8,746
Posted By John Clark
Me too, the problem is the the issues seem to go...

Me too, the problem is the the issues seem to go up as the cube of the number of toys. I would really rather go flying than overhauling a differential. ...
Forum: RV General Discussion/News 03-15-2013, 07:48 PM
Replies: 6
Views: 1,444
Posted By John Clark
Exactly! Filing IFR eliminates all sorts of...

Exactly! Filing IFR eliminates all sorts of airspace concerns. You just need to follow ATC's directions and stay on course.

John Clark ATP, CFI
FAAST Team Representative
EAA Flight Advisor
RV8...
Forum: RV General Discussion/News 03-14-2013, 05:40 PM
Replies: 24
Views: 7,040
Posted By John Clark
Getting back to Bob's original post, I, with a...

Getting back to Bob's original post, I, with a little frustration. signed up on the "new" AOPA flight planner. A couple of interesting problems, there is a long list of aircraft, but of course no...
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