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Search: Posts Made By: gmcjetpilot
Forum: Safety Yesterday, 08:07 PM
Replies: 18
Views: 1,910
Posted By gmcjetpilot
Ha ha ha. Yea weight was not the issue except...

Ha ha ha. Yea weight was not the issue except when the wing stopped flying and supporting weight.

Not to disparage the Zenith (although the shipping container is funny), it has a loyal following,...
Forum: Safety Yesterday, 11:39 AM
Replies: 18
Views: 1,910
Posted By gmcjetpilot
Sad Story of Pilot New to EAB Kit Planes Crashes 1st Flight (No One Hurt)

So I just got done going over the story of a guy who buys a Zenith 750 Cruiser and crashes it on first flight. He and his passenger were OK. The passenger was a more experienced pilot asked to come...
Forum: Painting your RV 10-24-2021, 06:53 PM
Replies: 13
Views: 830
Posted By gmcjetpilot
If you want to see a video for grins and...

If you want to see a video for grins and giggles.... some youtube videos of folks buying them and using them....
Forum: RV General Discussion/News 10-23-2021, 07:21 AM
Replies: 10
Views: 957
Posted By gmcjetpilot
You are being a teeny tiny bit pedantic about...

You are being a teeny tiny bit pedantic about terms. :) No maintenance, no lube, self lubricating are all synonymous or interchangeable. Google "self-lubricating" rod end bearings:

Self-lubricating...
Forum: RV General Discussion/News 10-22-2021, 09:33 PM
Replies: 4
Views: 518
Posted By gmcjetpilot
RC servos are popular for actuation. There are...

RC servos are popular for actuation. There are different stand alone controllers to move servos you can mount behind panel. Personally I would mount lights in access panels under wing. Why? Wing tip...
Forum: RV General Discussion/News 10-22-2021, 09:09 PM
Replies: 10
Views: 957
Posted By gmcjetpilot
In general rod ends are "self lubricated" and are...

In general rod ends are "self lubricated" and are lined with low friction material. However the above advice is excellent. LPS2 or toss them in trash can if there is any doubt.
Forum: RV Ongoing Maintenance Issues 10-22-2021, 08:57 PM
Replies: 11
Views: 532
Posted By gmcjetpilot
Ohooooo yea.... Very common. Spinner bulkhead...

Ohooooo yea.... Very common. Spinner bulkhead cracks are common. I can't picture your exact crack description.

This bulkhead is just sheet aluminum that was formed soft and heat treated (I am...
Forum: RV General Discussion/News 10-22-2021, 12:39 PM
Replies: 14
Views: 1,819
Posted By gmcjetpilot
They already know and have done studies which I...

They already know and have done studies which I disagree with and are flawed. Never the less I agree, but I just heard this on the news and small planes were mentioned.
Forum: Electrical Systems 10-22-2021, 10:52 AM
Replies: 2
Views: 281
Posted By gmcjetpilot
Those look nice, illuminated with icon of...

Those look nice, illuminated with icon of function. I have no personal experience with these, but they are suitable.

It is a switch not rocket brain surgery. Ha ha. The specs look officious and...
Forum: RV General Discussion/News 10-21-2021, 05:47 PM
Replies: 46
Views: 3,298
Posted By gmcjetpilot
Tell me your method. The math is simple. The...

Tell me your method. The math is simple. The three legs and GPS SPEED is averaged. (V1 + V2 + V3)/3 = Average TAS Speed. The idea is to average out WINDS. It is called the wind triangle. You can do...
Forum: RV General Discussion/News 10-21-2021, 12:35 AM
Replies: 46
Views: 3,298
Posted By gmcjetpilot
Yes. I like your method and logic. �� You...

Yes. I like your method and logic. ��

You checked for leaks but said no significant leak? There shouldn't be any leak. You should be able to pull a vacuum and it...
Forum: RV-9/9A 10-20-2021, 08:10 AM
Replies: 3
Views: 444
Posted By gmcjetpilot
The wing LEADING edge is 70 inch aft of datum as...

The wing LEADING edge is 70 inch aft of datum as shown in Section 7 of builder manual. Measure from there. 80 inches sounds too far aft just looking at the sketch in builder manual, but measuring...
Forum: RV General Discussion/News 10-18-2021, 09:03 PM
Replies: 9
Views: 929
Posted By gmcjetpilot
So it is all skinned and you have no access.......

So it is all skinned and you have no access.... Hummm.

Leave it. If you had some access you could drill out that one blind and re-set a new blind. That's not an option now. it's skinned. To drill...
Forum: RV Building Tips/Techniques 10-18-2021, 08:55 PM
Replies: 7
Views: 650
Posted By gmcjetpilot
I used red silicon baffle seal. On the FAB I...

I used red silicon baffle seal.

On the FAB I put a piece on the top flat side.

On the cowl side I had a fiberglass tunnel from the air inlet. There was about 3/8 inch gap between the cowl tunnel...
Forum: RV General Discussion/News 10-18-2021, 07:45 PM
Replies: 20
Views: 2,037
Posted By gmcjetpilot
Fly lower and breath O2 as provided by God for...

Fly lower and breath O2 as provided by God for free. :D
Forum: VAF Classifieds (posts in here deleted after 30 days) 10-17-2021, 10:58 AM
Replies: 21
Views: 2,297
Posted By gmcjetpilot
In general a toggle/rocker rated for 15A (AC)...

In general a toggle/rocker rated for 15A (AC) 125V is acceptable for 15A 12 volts DC. Up to you. There is no secret. Switch is a switch. True a DC circuits may be more likely to arc when opening a...
Forum: VAF Classifieds (posts in here deleted after 30 days) 10-17-2021, 10:43 AM
Replies: 16
Views: 3,729
Posted By gmcjetpilot
There is a Dynon D-100 and D-120 with all sensors...

There is a Dynon D-100 and D-120 with all sensors and probes on eBay. The D100 is a larger screen than D10, so this may not be your cup of...
Forum: RV General Discussion/News 10-14-2021, 06:57 PM
Replies: 42
Views: 4,551
Posted By gmcjetpilot
I thought of all those things you mentioned back...

I thought of all those things you mentioned back in the late 80s when I built my first RV. You may remember the US Air aircraft landing on a small Regional turboprop in position and hokd at LAX many...
Forum: RV General Discussion/News 10-14-2021, 06:51 PM
Replies: 9
Views: 929
Posted By gmcjetpilot
I'm an engineer, mechanical and worked for Boeing...

I'm an engineer, mechanical and worked for Boeing as a stress engineer (doing structural analysis and supporting certification and manufacturing. I signed off drawings for new airplanes and came up...
Forum: RV Building Tips/Techniques 10-12-2021, 09:14 AM
Replies: 30
Views: 2,644
Posted By gmcjetpilot
I got you. This is recommended by the SDS EFI...

I got you. This is recommended by the SDS EFI fuel system manufacture, YOU... :D

From the EM-5 manual (as you know, you wrote it, ha ha).

Fuel Filters
All fuel tanks should have screen type...
Forum: RV Building Tips/Techniques 10-11-2021, 11:23 PM
Replies: 30
Views: 2,644
Posted By gmcjetpilot
So I see folks adding filters or mini gascolators...

So I see folks adding filters or mini gascolators in each wing root area and comments about tail dragger as lowest point. ​Is this in the building instructions now or builder modification / option....
Forum: RV General Discussion/News 10-11-2021, 10:27 PM
Replies: 1
Views: 333
Posted By gmcjetpilot
Needs to be moved to Classified... It is missing...

Needs to be moved to Classified...

It is missing some parts, the K&N filter, base plate, nut plates, fastener alternate-air/carb-heat hinge/bracket/rivets, bypass valve (optional goes on bottom).
Forum: RV General Discussion/News 10-11-2021, 10:23 PM
Replies: 21
Views: 1,260
Posted By gmcjetpilot
Link not working? Says photo Preview not...

Link not working? Says photo Preview not available, File is on owners trash.

Good luck with repair...



You may want to start a new thread and say what you are asking to bond or fasten. Cheers
Forum: RV General Discussion/News 10-11-2021, 12:39 PM
Replies: 15
Views: 1,085
Posted By gmcjetpilot
Interesting. Personally taking a low time Pvt and...

Interesting. Personally taking a low time Pvt and getting them up to speed (pun intended) in a RV-X I can see taking time. One insurance company is 10 hours another 25 hours.

Two good points you...
Forum: RV General Discussion/News 10-11-2021, 12:01 PM
Replies: 7
Views: 1,538
Posted By gmcjetpilot
Thanks Bob.... this shows how hard it is to...

Thanks Bob.... this shows how hard it is to quantify changes in speed changes for one modification on an already fast plane. Even 1 kt. or two is hard to measure and may very over different flight...
Forum: RV General Discussion/News 10-07-2021, 11:53 PM
Replies: 15
Views: 1,085
Posted By gmcjetpilot
I once lived in Seattle area (I think per your...

I once lived in Seattle area (I think per your profile your base is SEA). Arlington Airport North of Seattle, when I was there, we had well over a dozen RV's, but that has been almost 20 yrs ago. A...
Forum: RV General Discussion/News 10-06-2021, 08:10 AM
Replies: 7
Views: 830
Posted By gmcjetpilot
+1 on Bill's and David's comment. One trick is...

+1 on Bill's and David's comment. One trick is get good foam and cut it and glue it to make the shape. Design it so you glue on a top layer of "temper foam" or memory foam (invented by NASA for...
Forum: RV General Discussion/News 10-05-2021, 09:35 PM
Replies: 6
Views: 946
Posted By gmcjetpilot
I remember a Thailand RV4 many years ago in the...

I remember a Thailand RV4 many years ago in the RVator... There could be more than one or two already. Sounds like a Thai VAF.. Good luck!!!

BTW I vacationed in Thailand with my girl friend a few...
Forum: RV General Discussion/News 10-05-2021, 09:12 PM
Replies: 13
Views: 2,733
Posted By gmcjetpilot
In context of flying WITHIN IN limits and early...

In context of flying WITHIN IN limits and early RV3 rear spar attach issue... The Van's aircraft planes are structurally sound. I have a degree in mechanical engineer and did aircraft structural...
Forum: RV General Discussion/News 10-05-2021, 12:22 PM
Replies: 7
Views: 830
Posted By gmcjetpilot
Oregon Aero have been around almost as long as I...

Oregon Aero have been around almost as long as I have been flying. Never heard anything bad about them except may be their headset accessory once 30 yrs ago. Not sure what your upholster will...
Forum: RV General Discussion/News 10-04-2021, 07:03 PM
Replies: 7
Views: 1,538
Posted By gmcjetpilot
It is less wing area, less drag. Is a flat plate...

It is less wing area, less drag. Is a flat plate wing tip better? I don't know. Anyone do a before and after.
Forum: RV General Discussion/News 10-02-2021, 09:21 AM
Replies: 1
Views: 474
Posted By gmcjetpilot
Trade-A-Plane would be my first go to....

Trade-A-Plane would be my first go to. Barnstormers is another aviation classifieds. These VAF Forum Classifieds also a good place (post want to buy and scan it daily for people selling engines)....
Forum: ADS-B 10-01-2021, 06:22 AM
Replies: 3
Views: 455
Posted By gmcjetpilot
Garmin is the Apple of Avionics. Microsoft,...

Garmin is the Apple of Avionics. Microsoft, Tesla, Apple and Garmin are proprietary with no right to repair....
Forum: RV General Discussion/News 09-30-2021, 09:46 PM
Replies: 26
Views: 2,409
Posted By gmcjetpilot
It is about 1800 statue miles? The plane goes...

It is about 1800 statue miles? The plane goes 150-165 mph? So it would be a two day flight easy. Not withstanding weather, during longer summer days (which are in rearview mirror at this point),...
Forum: RV General Discussion/News 09-30-2021, 09:27 PM
Replies: 7
Views: 1,104
Posted By gmcjetpilot
Flap would be easier. Steel bracket would be my...

Flap would be easier.

Steel bracket would be my preference, and by slow, careful work it could be done "Situ" (in place), but risk of damage to fuselage skin might be considered.

If you do the...
Forum: RV General Discussion/News 09-29-2021, 05:07 PM
Replies: 16
Views: 2,033
Posted By gmcjetpilot
I use the two torque methods: The German method:...

I use the two torque methods:

The German method: Gut Und Tight

The mechanic method: Tighten until it breaks off then back off a 1/4 turn.

All RV builders should down load this Aviation Circular...
Forum: RV General Discussion/News 09-28-2021, 08:40 AM
Replies: 26
Views: 3,305
Posted By gmcjetpilot
Yes I am aware of the difference in passive and...

Yes I am aware of the difference in passive and ANR and how ANR works. However you are aware there are ANR in-ear headsets.... Bose ProFlight 2 and UFQ ANR L2 are two models that come to mind. How...
Forum: RV General Discussion/News 09-28-2021, 07:56 AM
Replies: 32
Views: 2,989
Posted By gmcjetpilot
Tailwinds are pilots delights.... In GA my best...

Tailwinds are pilots delights.... In GA my best tailwind (rusty memory) was also in the 35kt to 40kts range at similar altitudes. In a jet it was about 150 kts. Fun to see the high ground speeds.
Forum: RV General Discussion/News 09-27-2021, 09:10 AM
Replies: 26
Views: 3,305
Posted By gmcjetpilot
Great article devoid of hype/opinion, just data...

Great article devoid of hype/opinion, just data and fair analysis of that data. They don't say what headsets they tested, the test set up, just a picture of a bunch of headsets with all the usual...
Forum: RV General Discussion/News 09-26-2021, 10:13 PM
Replies: 26
Views: 3,305
Posted By gmcjetpilot
QUOTE=scard;1557801]Rod, It is great that you are...

QUOTE=scard;1557801]Rod,
It is great that you are enjoying the sound experience that we've worked so hard for on the CQ Headset with Bluetooth. [/QUOTE]

Are you going to do an ANR version?

Do you...
Forum: RV General Discussion/News 09-23-2021, 08:31 AM
Replies: 28
Views: 3,301
Posted By gmcjetpilot
I have known that the FAR's don't set pilot...

I have known that the FAR's don't set pilot requirements since the late 1980's. The insurance companies set pilot requirements (if you rent or want insurance on a personal plane). Renting planes at...
Forum: RV General Discussion/News 09-21-2021, 07:46 PM
Replies: 11
Views: 989
Posted By gmcjetpilot
Oil change is more than draining oil, replacing...

Oil change is more than draining oil, replacing filter (cutting open looking for metal) and buttoning it up..

Inspect EVERYTHING, fasteners, hoses, wires, engine mount, engine, baffle, ignition...
Forum: RV General Discussion/News 09-21-2021, 07:40 PM
Replies: 8
Views: 1,625
Posted By gmcjetpilot
Still no joy on link... However I know everything...

Still no joy on link... However I know everything to know about airplane hull insurance. It is excessively expensive. :D
Forum: RV General Discussion/News 09-21-2021, 07:37 PM
Replies: 17
Views: 1,920
Posted By gmcjetpilot
It was in Washington state but on one airplane...

It was in Washington state but on one airplane decades ago I went into the state accessors office and talked to a state employee, showed them purchase price on bill of sale (factory plane) and they...
Forum: RV General Discussion/News 09-21-2021, 07:32 PM
Replies: 6
Views: 858
Posted By gmcjetpilot
Well said. Good advice. Agree do other things to...

Well said. Good advice. Agree do other things to lower temp before cutting extra holes.

I would add what jug has +400F? Is it the #3 Jug? Do you have a gap between baffle and cylinder to allow...
Forum: Traditional Aircraft Engines 09-20-2021, 06:58 PM
Replies: 56
Views: 16,157
Posted By gmcjetpilot
I am glad new life has been injected (pun...

I am glad new life has been injected (pun intended) into this thread. I watched Reno and got to see some Pit videos of the top Gold Class Sport planes with cowls off. Yes many of them use TWIN turbos...
Forum: RV-7/7A 09-20-2021, 11:49 AM
Replies: 15
Views: 1,992
Posted By gmcjetpilot
1) I am not against experimentation or...

1) I am not against experimentation or tinkering... Heck I experiment with my Scotch and Cigars all the time. :D However I am trying to help people. Seriously.

2) People can do as they like, but...
Forum: RV General Discussion/News 09-18-2021, 06:08 AM
Replies: 26
Views: 3,305
Posted By gmcjetpilot
They do seem to be the quality "Bose" of the...

They do seem to be the quality "Bose" of the in-ear headset brands. I talked to them at AirVenture Oshkosh 2021. They are the choice of the Army helicopter pilots. So they had to go through...
Forum: Engine Monitors 09-17-2021, 12:52 PM
Replies: 3
Views: 359
Posted By gmcjetpilot
Any one get GRT EIS to play nice with Dynon or Garmin G3X

I have a GRT EIS monitor which has it's own control and display head. The display is rudimentary but the control head has serial out that works with GRT EFIS displays....

Anyone able to get the the...
Forum: Tip up canopy vs. Sliding canopy 09-17-2021, 12:49 PM
Replies: 20
Views: 1,567
Posted By gmcjetpilot
Flyboy Accessories Canopy Slide Extension

"Supertracks Canopy Track Extension" for over $300, to allow easier access to baggage compartment by alowing canopy to slide back futher.

Anyone have comments? Must have? Nice to...
Forum: RV General Discussion/News 09-17-2021, 10:47 AM
Replies: 12
Views: 1,154
Posted By gmcjetpilot
Sorry to hijack but it is relevant. Can we get...

Sorry to hijack but it is relevant. Can we get everyone to agree...:D

As a CFI can I get LODA to instruct (for compensation) in any Vans Aircraft RV (EAB) model with any student without an...
Forum: RV General Discussion/News 09-16-2021, 06:39 PM
Replies: 2
Views: 397
Posted By gmcjetpilot
If you search these forums for Conical Lord...

If you search these forums for Conical Lord engine mount you will find the numbers. I think you have the correct part number.

NOTE: You can shim the engine mount to isolation mount to align engine....
Forum: Alternative Engines 09-13-2021, 08:29 PM
Replies: 771
Views: 199,994
Posted By gmcjetpilot
Sorry did not see the other post. Thanks for...

Sorry did not see the other post. Thanks for update. From video sounded good. Thanks for quantifying speed... The CS PROP will be a great change. Good luck.
Forum: Alternative Engines 09-12-2021, 07:59 PM
Replies: 771
Views: 199,994
Posted By gmcjetpilot
It has been 3 years... any update??? I see you...

It has been 3 years... any update??? I see you have flown it from videos

Update, Empty weight, top speed sea level, cruise at 8500 msl WOT speed and FF?
Forum: Alternative Engines 09-12-2021, 07:51 PM
Replies: 16
Views: 2,799
Posted By gmcjetpilot
PSRU PSRU PSRU Critical and often weak point of...

PSRU PSRU PSRU

Critical and often weak point of all engine conversions. I won't bother too tell you all the issues since you say you know, but you need to design a gear box. Will it be able to drive...
Forum: RV General Discussion/News 09-12-2021, 07:25 PM
Replies: 26
Views: 3,305
Posted By gmcjetpilot
The price is $725.00... with no ANR? How does it...

The price is $725.00... with no ANR? How does it compare to other in-ear headsets?

Faro Air Lightweight In-Ear Pilot Headset - Fixed Wing...
Forum: RV General Discussion/News 09-11-2021, 07:53 PM
Replies: 12
Views: 1,293
Posted By gmcjetpilot
I often thought of this myself many many times...

I often thought of this myself many many times over many years. Then I thought it was a little bit crazy. I'm glad enough other people are crazy too. :D

Seriously in plaine training is sufficient....
Forum: Alternative Engines 09-11-2021, 07:46 PM
Replies: 37
Views: 5,075
Posted By gmcjetpilot
I talked to these people and they are very nice,...

I talked to these people and they are very nice, but they really don't have anything. The engine they ran in the past was a totally different prototype. The engine they show is a plastic model. They...
Forum: RV-7/7A 09-10-2021, 05:56 AM
Replies: 15
Views: 1,992
Posted By gmcjetpilot
Excuse me. Sorry. I have been following new...

Excuse me. Sorry. I have been following new engines and alternatives for 35 years since I graduated with a mechanical engineering degree. You say you will be dead by the time they perfect this...
Forum: RV-7/7A 09-09-2021, 07:09 PM
Replies: 15
Views: 1,992
Posted By gmcjetpilot
What is a liquid piston? :eek::D You mean...

What is a liquid piston? :eek::D

You mean liquid cooling? There is a company that makes liquid cooled cylinders and heads for Lycoming's. Where you going to put the...
Forum: RV-7/7A 09-09-2021, 07:04 PM
Replies: 15
Views: 1,992
Posted By gmcjetpilot
I personally have not heard of it but if you have...

I personally have not heard of it but if you have the will, time, skill, time and money yes you can stuff a Continental IO360 6 cylinder into a RV. Now for my lecture. WHY? It will not fly better,...
Forum: RV General Discussion/News 09-06-2021, 12:54 PM
Replies: 42
Views: 4,365
Posted By gmcjetpilot
LOOKING AT POLL ANALYSIS AS OF TODAY... 1) ANR...

LOOKING AT POLL ANALYSIS AS OF TODAY...

1) ANR headsets are more popular than passive. Every 2 out of 3 headsets are ANR.

2) People are willing to pay $750 or more for a headset. At least half of...
Forum: RV General Discussion/News 09-05-2021, 04:48 PM
Replies: 8
Views: 1,392
Posted By gmcjetpilot
Your key question is learning: "Is there a place...

Your key question is learning: "Is there a place to go to school to learn how to do this? "

As someone said starting at an automotive shop as an apprentice for OJT would be a great start. If you...
Forum: RV General Discussion/News 09-02-2021, 02:17 PM
Replies: 12
Views: 1,393
Posted By gmcjetpilot
You got good advice above and add you can send...

You got good advice above and add you can send cushion off to upholstery shop to be modified for more clearance. Try as other said more Velcro to make sure cushion is more secure to seat pan...
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