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Search: Posts Made By: gmcjetpilot
Forum: RV General Discussion/News Yesterday, 08:39 PM
Replies: 42
Views: 7,722
Posted By gmcjetpilot
OK these are not the LAMB 11-400 x 5 many used in...

OK these are not the LAMB 11-400 x 5 many used in the past. The 11-400x5 was made by Cheng Shin - China). They were used on ultra lights and experimental AC (e.g., Vari Ez / Long Ez). Spruce Aircraft...
Forum: Traditional Aircraft Engines 08-05-2020, 03:41 PM
Replies: 30
Views: 1,817
Posted By gmcjetpilot
Let me add another irrelevant but related...

Let me add another irrelevant but related comment. Stick with 8.5 to 1.... 9 to 1 max.

Personally I prefer 8.5 to 1 CR.... It has higher detonation margins than 9.0 to 1 CR, and another 10 HP is not...
Forum: RV General Discussion/News 08-04-2020, 09:26 PM
Replies: 13
Views: 2,190
Posted By gmcjetpilot
I guess if you own and fly a $175K to $500K (not...

I guess if you own and fly a $175K to $500K (not kidding) Cirrus single engine plane you can afford $5995 for wheel pant intersection fairing...:rolleyes:

As was said above, just eyeball engineering...
Forum: RV General Discussion/News 08-01-2020, 09:21 AM
Replies: 42
Views: 7,722
Posted By gmcjetpilot
I have some NEW LAMB tubes give me a PM me if...

I have some NEW LAMB tubes give me a PM me if interested.



Why, are they metric? Because it is made in CHINA and these are not aircraft tires. They were made for other utilitarian uses (carts,...
Forum: Traditional Aircraft Engines 08-01-2020, 09:04 AM
Replies: 30
Views: 1,817
Posted By gmcjetpilot
There is a relationship between bore & stroke...

There is a relationship between bore & stroke (displacement), cylinder head volume (combustion chamber), and piston shape in determining CR.

By definition.

BORE X STROKE = DISPLACEMENT

* You can...
Forum: RV General Discussion/News 07-28-2020, 08:10 PM
Replies: 17
Views: 8,072
Posted By gmcjetpilot
Exclamation I ended all the issues with the wire Push Pull...

I ended all the issues with the wire Push Pull cable by going to a cable with a threaded end. I use a rod end fitting. No Mickey Mouse issues. This is an important control and this isn't a place...
Forum: RV Building Tips/Techniques 07-26-2020, 10:00 PM
Replies: 22
Views: 5,797
Posted By gmcjetpilot
How much gap are we talking. In the day before...

How much gap are we talking. In the day before the two piece pants you had large gaps. Baffle material was common. Once we got the two piece you could make it tight. The down side is different tire...
Forum: RV General Discussion/News 07-24-2020, 08:51 PM
Replies: 71
Views: 11,638
Posted By gmcjetpilot
Premium is of course dependent on many factors....

Premium is of course dependent on many factors. TW can be less than Trike...

Ways to save money (for less coverage) besides no insurance at all, is liability only. Another level is non-movement...
Forum: RV General Discussion/News 07-24-2020, 08:18 PM
Replies: 9
Views: 890
Posted By gmcjetpilot
Beautiful Primer. But later same color as...

Beautiful Primer. But later same color as plane... This was on my first RV. My RV-7 all lights are in wingtips and it is currently gel-coat... but will be painted airplane color....
Forum: RV General Discussion/News 07-12-2020, 02:50 PM
Replies: 5
Views: 859
Posted By gmcjetpilot
too much automation. I'd call Dynon. Curious what...

too much automation. I'd call Dynon. Curious what it uses for input. I assume OAT is one. Why it alerts at 70F I don't know.
Forum: Safety 06-28-2020, 06:31 PM
Replies: 30
Views: 2,153
Posted By gmcjetpilot
You were not the first. Cirrus now offers from...

You were not the first. Cirrus now offers from the factory a gear switch on fixed gear SR22's (option I think). A pilot I flew with late 80's came from an airline with a mixed fleet of DHC-6 Twin...
Forum: RV-14 06-26-2020, 08:22 PM
Replies: 37
Views: 7,524
Posted By gmcjetpilot
Another pilot with tail wheel envy. :D Yes Trikes...

Another pilot with tail wheel envy. :D Yes Trikes never have pilot induced landing issues. :rolleyes:

http://1.bp.blogspot.com/-YQS_T2W5vvI/UXB5l5jFwhI/AAAAAAAAJ7c/kYfRhKLFBu4/s320/rv9_flaps.jpg
Forum: RV-7/7A 06-26-2020, 05:57 PM
Replies: 8
Views: 749
Posted By gmcjetpilot
I like how you think... Larger douber would be...

I like how you think... Larger douber would be good as suggested. ELT does not have too much drag. If you push on it with a few lbs of force near base. It should not move and skin should not have...
Forum: Steam Gauges 06-26-2020, 05:26 PM
Replies: 2
Views: 1,582
Posted By gmcjetpilot
Good for you Sir.... Keep the steam gauges alive....

Good for you Sir.... Keep the steam gauges alive. :D
Forum: RV General Discussion/News 06-24-2020, 04:29 PM
Replies: 42
Views: 5,003
Posted By gmcjetpilot
It's called American Revolution and we won. :D

It's called American Revolution and we won. :D
Forum: RV General Discussion/News 06-24-2020, 04:25 PM
Replies: 19
Views: 1,672
Posted By gmcjetpilot
Impossible question with no answer..... Depends...

Impossible question with no answer..... Depends on accident and more over the quality of repair and in general the quality of the aircraft.
Forum: RV General Discussion/News 06-24-2020, 04:24 PM
Replies: 10
Views: 775
Posted By gmcjetpilot
Fltplan.com and iPad or Tablet App Fltplan Go.

Fltplan.com and iPad or Tablet App Fltplan Go.
Forum: RV General Discussion/News 06-24-2020, 04:12 PM
Replies: 39
Views: 11,150
Posted By gmcjetpilot
I used 121.500 Mhz, seems to always be quiet......

I used 121.500 Mhz, seems to always be quiet... kidding. Freqs are congested World wide and why the current 760 channels is insufficient. The 8.33 Khz spacing is to address this and if at FL195 or...
Forum: Safety 06-23-2020, 08:44 PM
Replies: 30
Views: 2,153
Posted By gmcjetpilot
I like it.... use it. If you need to modify it do...

I like it.... use it.
If you need to modify it do so, but don't make it longer.This is a RV not a B737 two crew transport. It's a nice size now...

Personally I use flow top to bottom, front to back,...
Forum: RV General Discussion/News 06-23-2020, 07:00 PM
Replies: 42
Views: 5,003
Posted By gmcjetpilot
https://www.faa.gov/air_traffic/publications/atpub...

https://www.faa.gov/air_traffic/publications/atpubs/aim_html/chap2_section_3.html

We have yellow lines, solid and dashed on the hold side on the taxiway. All Americans have 20/15 X-ray vision and...
Forum: RV Ongoing Maintenance Issues 06-21-2020, 11:14 PM
Replies: 31
Views: 2,812
Posted By gmcjetpilot
Guessing is fun. Already mentioned: Could be...

Guessing is fun. Already mentioned: Could be loose connection. Could be voltage regulator. Could be bad switch...
Forum: RV General Discussion/News 06-21-2020, 10:43 PM
Replies: 42
Views: 5,003
Posted By gmcjetpilot
I think it was all covered here, but uncontrolled...

I think it was all covered here, but uncontrolled or on-towered is see and be seen... don't assume. Here is a video to prove that.

https://youtu.be/DbZqH6HQ0vQ

At large towered airports with tower...
Forum: RV General Discussion/News 06-15-2020, 08:49 PM
Replies: 47
Views: 4,887
Posted By gmcjetpilot
I find it hard to believe in the ear has the...

I find it hard to believe in the ear has the sound reduction of a full cup headset, but they look cool..... but I flew piston airplanes for a long time without Noise Cancelling headsets.... passive...
Forum: RV General Discussion/News 06-15-2020, 08:41 PM
Replies: 6
Views: 1,759
Posted By gmcjetpilot
This is a good builder site and has lots of Sam...

This is a good builder site and has lots of Sam James Cowl Plenum mod'g going on.

http://romeolima.com/rv8/Cowl.htm
Forum: Instrument Flight Rules 06-14-2020, 11:59 PM
Replies: 13
Views: 1,592
Posted By gmcjetpilot
Yep you got the picture. TSO'ed GPS and...

Yep you got the picture. TSO'ed GPS and subscription is expensive.

With all your capabilities now you should be OK? However that is up to you. Depends on what approaches you want to use. If it get's...
Forum: RV General Discussion/News 06-14-2020, 10:58 PM
Replies: 22
Views: 1,684
Posted By gmcjetpilot
As was said the FAR's are vague and clear as mud...

As was said the FAR's are vague and clear as mud here. However the caveat I recall (rusty memory alert) is a maneuver for training toward a rating. Example a CFI teaching another pilot for CFI rating...
Forum: Electrical Systems 06-06-2020, 11:28 AM
Replies: 60
Views: 6,590
Posted By gmcjetpilot
I like it a lot better than original. Much more...

I like it a lot better than original. Much more smple, lighter better operationally. But you could do better.

I don't have an issue with clearance delivery switch or avionics switch but Why? It's...
Forum: Glass Cockpit 06-02-2020, 06:16 AM
Replies: 73
Views: 4,248
Posted By gmcjetpilot
I am going to hold my breath and I'm turning blue...

I am going to hold my breath and I'm turning blue until I get it. Ha ha. Yeah I hear you. I don't expect it either, but I'll probably transition to some other software. However AHAR not my main...
Forum: Glass Cockpit 06-02-2020, 05:51 AM
Replies: 57
Views: 4,966
Posted By gmcjetpilot
Cool. Thanks for the replies. Glad this was just...

Cool. Thanks for the replies. Glad this was just a bad unit and many have good solid performance.

G5 and others, all the "experimenral" solid state EFIS attitude (some STC'ed for certified planes)...
Forum: RV General Discussion/News 05-31-2020, 08:29 PM
Replies: 74
Views: 9,027
Posted By gmcjetpilot
Thumbs up Wow for a rookie plane camper you did it all....

Wow for a rookie plane camper you did it all. Experienced the bliss and bane of camping. Glad you are safe and had fun. Get back to Johnson Creek someday soon. It's worth it. Thanks for the travel...
Forum: Glass Cockpit 05-31-2020, 06:23 PM
Replies: 73
Views: 4,248
Posted By gmcjetpilot
Thanks for the great replies. I bought a Samsung...

Thanks for the great replies.

I bought a Samsung Tab S2 SM-T713 and built a stratux ADS-B with AHAR. Using FltPlan Go. Amazing. They don't have the AHAR display yet for android but that's coming....
Forum: Glass Cockpit 05-31-2020, 01:17 PM
Replies: 57
Views: 4,966
Posted By gmcjetpilot
Sorry for the dumb questions, but it's how we...

Sorry for the dumb questions, but it's how we learn.

Why is the AV30 attractive or desirable? I watched the ad https://youtu.be/_3SjbeZtruQ

I see it has some unique form, fit and function. However...
Forum: RV-7/7A 05-30-2020, 08:52 PM
Replies: 17
Views: 1,626
Posted By gmcjetpilot
Thanks for great data. As you discovered 2.75 is...

Thanks for great data. As you discovered 2.75 is too small, but in my opinion 3" is still too small. Duct area of 4" dia. is about the right area to feed the cooler.

Also / other threads show the...
Forum: RV General Discussion/News 05-26-2020, 09:46 AM
Replies: 17
Views: 1,606
Posted By gmcjetpilot
You don't need a DAR to do this. This is straight...

You don't need a DAR to do this. This is straight forward (for Government). With a little research you can navigate the paper trail. First place is FAA web site.

Must...
Forum: RV General Discussion/News 05-25-2020, 09:57 AM
Replies: 26
Views: 1,818
Posted By gmcjetpilot
Yes it is thought it best to remove the heat muff...

Yes it is thought it best to remove the heat muff if you take off the feed air. Is a bad to leave it on? Let's think about it. :D

So normally that part of the pipe where the heat muff is cooler...
Forum: RV General Discussion/News 05-25-2020, 09:48 AM
Replies: 26
Views: 1,818
Posted By gmcjetpilot
Thank you Sir for the fast flight test and...

Thank you Sir for the fast flight test and report. Wow that is dramatic and more than I'd guess. How are the other jugs? Did they see an improvement? :D
Forum: RV General Discussion/News 05-24-2020, 11:06 AM
Replies: 36
Views: 3,777
Posted By gmcjetpilot
I have heard of this before. I was training...

I have heard of this before. I was training pilots on the B757/B767/B747-400 in the early 90's and there were still pilots transitioning from steam gauges to glass. Some embraced it, some were...
Forum: Glass Cockpit 05-24-2020, 09:59 AM
Replies: 73
Views: 4,248
Posted By gmcjetpilot
Good tip Snowflak. [edit] I found web page, links...

Good tip Snowflak. [edit] I found web page, links to DIY (Youtube) and parts? Parts as full kits are sold out, but looks like you can go ala carte.

Do you all recommend 8", 9.7" or 10.1"...... It...
Forum: Glass Cockpit 05-23-2020, 09:42 AM
Replies: 73
Views: 4,248
Posted By gmcjetpilot
What Samsung Tablet is required and which one do...

What Samsung Tablet is required and which one do you all recommend. There is a crazy number of models.

The current crop in order: Tab A, Tab S5e, Tab 4 and Tab 6. What is min RAM and Storage. I...
Forum: RV General Discussion/News 05-23-2020, 08:22 AM
Replies: 26
Views: 1,818
Posted By gmcjetpilot
Yep that is what B17 crews did in WWII. They had...

Yep that is what B17 crews did in WWII. They had heated flight suits and boot liners, pluse insulated lined gloves and caps. http://www.303rdbg.com/uniforms-gear3.html

Delivering an RV-4 from...
Forum: RV General Discussion/News 05-22-2020, 09:42 AM
Replies: 26
Views: 1,818
Posted By gmcjetpilot
Hot Weather Remove (Temporarily) Cabin Heat & Does Cabin Heat Reduce Engine Cooling?

Envision the cabin heat system:
> High Pressure Air is removed from the high pressure side of the engine baffle
> Air routed to a heat muff wrapped around an exhaust pipe by flex hose
> Hot air out...
Forum: RV General Discussion/News 05-22-2020, 09:02 AM
Replies: 28
Views: 1,888
Posted By gmcjetpilot
Anyone semi-permanently mount the iPad in the...

Anyone semi-permanently mount the iPad in the panel? How is the off angle viewing?
Anyone use their iPad flight nave App as primary NAV?
Forum: Glass Cockpit 05-22-2020, 08:58 AM
Replies: 73
Views: 4,248
Posted By gmcjetpilot
Android Tablet and Software Alternative to iPad and Foreflight?

There is a great current thread on iPad flight applications. I did not want to hijack it. http://www.vansairforce.com/community/showthread.php?t=182743


Anyone using an Android Tablet?
Any...
Forum: RV General Discussion/News 05-22-2020, 08:50 AM
Replies: 23
Views: 21,111
Posted By gmcjetpilot
This is like the washer trick to hold the baffle...

This is like the washer trick to hold the baffle off the fins to allow more airflow around the back and lower part of the #3 that has been around for about 30 years or more, but like this channel...
Forum: RV General Discussion/News 05-21-2020, 08:07 PM
Replies: 42
Views: 6,609
Posted By gmcjetpilot
Tango Tango you have been at for 9 months. Good...

Tango Tango you have been at for 9 months. Good for you, glad you are back. There was some thread drift. As Whisky Romeo said, this CT is the normal range. I posted before but you may want to back...
Forum: RV General Discussion/News 05-21-2020, 08:01 PM
Replies: 13
Views: 992
Posted By gmcjetpilot
Oh my.... :rolleyes:

Oh my.... :rolleyes:
Forum: Safety 05-18-2020, 01:33 PM
Replies: 2
Views: 609
Posted By gmcjetpilot
Thanks for the PIREP... yep chrome can reduce...

Thanks for the PIREP... yep chrome can reduce fatigue life. Not sure about the chrome process changing the heat treat of the aluminum... but chrome is super hard but brittle. It bonds to base metal....
Forum: Electrical Systems 05-18-2020, 12:57 PM
Replies: 60
Views: 6,590
Posted By gmcjetpilot
I long for the day, two relays (Bat/Start), one...

I long for the day, two relays (Bat/Start), one Alt, one battery, one buss. Most Piper and Cessna and Beech are flying like this IFR everyday. Of course they have vacuum pumps for flight instruments...
Forum: RV General Discussion/News 05-18-2020, 12:51 PM
Replies: 14
Views: 1,475
Posted By gmcjetpilot
I need something for my reading glasses....

I need something for my reading glasses....
Forum: Electrical Systems 05-17-2020, 10:24 PM
Replies: 36
Views: 2,438
Posted By gmcjetpilot
Cutting sheet metal is not hard. You built what...

Cutting sheet metal is not hard. You built what looks like a beautiful fast back RV-4.

1) Why do you need a TAXI Camera? I have 900 hours in RV-4 and they are easy to taxi with out S-turn. Keep...
Forum: Traditional vs. Alternative Powerplants 05-16-2020, 09:36 PM
Replies: 10
Views: 7,563
Posted By gmcjetpilot
Diesel is up to 20% to 30% more efficient and the...

Diesel is up to 20% to 30% more efficient and the fuel has 10% to 15% more energy density, and makes more low end torque than a petrol engine.

I drive a VW TDI Sportwagen and can get over 50 mpg...
Forum: RV General Discussion/News 05-16-2020, 11:50 AM
Replies: 20
Views: 1,698
Posted By gmcjetpilot
Mike of Savvy is pretty good source of solid...

Mike of Savvy is pretty good source of solid advice. Here is him giving his background. Interesting path to his career now. https://youtu.be/l-gNZuqa_Ug

12 or 16 channel engine analyzers are...
Forum: RV General Discussion/News 05-15-2020, 12:02 PM
Replies: 21
Views: 2,450
Posted By gmcjetpilot
I think it looks great and should last a long...

I think it looks great and should last a long time, heat, fluids will take a toll over time but I see this lasting a long time. We shall see. Nice work.
Forum: RV General Discussion/News 05-14-2020, 05:08 PM
Replies: 6
Views: 407
Posted By gmcjetpilot
As MEL said EGT is not an absolute but a...

As MEL said EGT is not an absolute but a reference. More important is what is the RELATIVE EGT to each JUG. Also important is what is NORMAL for your plane. If you have one get cold or super hot...
Forum: RV General Discussion/News 05-14-2020, 09:11 AM
Replies: 25
Views: 1,772
Posted By gmcjetpilot
I prefer dimple on 0.032 because with 3/32 flush...

I prefer dimple on 0.032 because with 3/32 flush rivet it is knife edged. In the certified aircraft world it is usually a no no to have more than 67% countersking to skin thickness. Up to you! It...
Forum: Propellers 05-14-2020, 09:05 AM
Replies: 4
Views: 940
Posted By gmcjetpilot
Correction: anyone can paint it who knows what...

Correction: anyone can paint it who knows what they are doing and uses the proper paint and processes.":D I'd call the manufacture and ask what product to use.

I don't know but I talked to a prop...
Forum: Propellers 05-14-2020, 12:20 AM
Replies: 4
Views: 940
Posted By gmcjetpilot
The blades are aluminum. It is just paint. Anyone...

The blades are aluminum. It is just paint. Anyone who knows paint can do it. You could paint it on plane with out removal. You could remove it, and tear down.... that will be big money. With that...
Forum: RV General Discussion/News 05-14-2020, 12:06 AM
Replies: 32
Views: 3,636
Posted By gmcjetpilot
The RV-14 is even more snap together than the...

The RV-14 is even more snap together than the -7... but you are right they are punched. The RV-14 is just a next level where it has less fitting required.
Forum: RV General Discussion/News 05-14-2020, 12:00 AM
Replies: 20
Views: 1,698
Posted By gmcjetpilot
I don't have a brilliant answer or cure to the...

I don't have a brilliant answer or cure to the current pandemic but I have an observation.

Middle of graph, the EGT #1 delta is approx 50F. Not significant.

Right of graph EGT #1 matches closely...
Forum: RV General Discussion/News 05-11-2020, 11:34 PM
Replies: 4
Views: 428
Posted By gmcjetpilot
You don't need an IA an A&P might do especially...

You don't need an IA an A&P might do especially if they are familiar with RV's. As Mike S. said an experienced RV builder owner would be better than nothing.

There is no requirement to hire anyone...
Forum: COMM 05-11-2020, 11:25 PM
Replies: 43
Views: 4,838
Posted By gmcjetpilot
Thanks Bob...initially I was going on this was a...

Thanks Bob...initially I was going on this was a NAV antenna and there were no issues until the wing tip was installed.... there was no PTT or transmitting involved like the other thread.

When I...
Forum: COMM 05-11-2020, 05:59 PM
Replies: 43
Views: 4,838
Posted By gmcjetpilot
I'm a simple man so let me ask these dumb...

I'm a simple man so let me ask these dumb questions. The antenna is for NAV? Where does the coaxial go, a NAV unit (VOR/LOC/GS) somewhat separate of the Dynon. What does NAV have to do with the...
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