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Search: Posts Made By: rv7charlie
Forum: RV General Discussion/News Yesterday, 02:19 PM
Replies: 51
Views: 2,512
Posted By rv7charlie
If you need 18 ga to avoid voltage drop on a long...

If you need 18 ga to avoid voltage drop on a long wire run, there's nothing wrong with crimping a few inches of 20 ga in a pin, and splicing on 18 ga just outside the connector shell. Note that I'm...
Forum: Temp / Test / Misc. (posts deleted after 2 weeks) 06-16-2018, 01:23 PM
Replies: 19
Views: 1,685
Posted By rv7charlie
Sounds like repair vs build (see earlier posts;...

Sounds like repair vs build (see earlier posts; the FAA specifically addresses this).

As to operation of exhibition category: see earlier posts; the rules on proficiency flying changed radically a...
Forum: RV General Discussion/News 06-16-2018, 01:16 PM
Replies: 7
Views: 502
Posted By rv7charlie
It's been a while, but I think the instructions...

It's been a while, but I think the instructions say to align everything (IIRC that means the gear itself, too) with the weight off the gear; hanging as they would in flight. I did mine by mounting...
Forum: RV General Discussion/News 06-16-2018, 11:50 AM
Replies: 7
Views: 502
Posted By rv7charlie
On my -7, I just used Van's instructions (string)...

On my -7, I just used Van's instructions (string) for aligning the leg fairings. I used a cheap Harbor Freight laser level (oriented vertically) to align the pants. The laser paints a line on the...
Forum: RV General Discussion/News 06-15-2018, 10:37 PM
Replies: 25
Views: 1,810
Posted By rv7charlie
My favorite trick happens after the ends are...

My favorite trick happens after the ends are squeezed: a nutplate instead of a hex nut. One less tool, so one extra hand in the mix.
Forum: Temp / Test / Misc. (posts deleted after 2 weeks) 06-15-2018, 08:49 PM
Replies: 19
Views: 1,685
Posted By rv7charlie
IIRC, the engine, prop, avionics & maybe a few...

IIRC, the engine, prop, avionics & maybe a few other major items are specifically exempted from the percentages. There really is specific guidance now. Check with EAA; I'm sure they can give you a...
Forum: Temp / Test / Misc. (posts deleted after 2 weeks) 06-15-2018, 05:31 PM
Replies: 19
Views: 1,685
Posted By rv7charlie
From the document that Scott linked: "f....

From the document that Scott linked:
"f. Type-Certificated Aircraft. Altering, repairing, or rebuilding type-certificated
aircraft constitutes maintenance of a type-certificated aircraft under part...
Forum: Electrical Systems 06-15-2018, 11:49 AM
Replies: 4
Views: 317
Posted By rv7charlie
Never used it, though I've wrapped an occasional...

Never used it, though I've wrapped an occasional harness in non-av use.

If you're trolling for ideas, here are a few.
1st, I'm forever making changes to the plane I'm flying, and even to the one...
Forum: Electronic Ignition Systems 06-15-2018, 08:59 AM
Replies: 160
Views: 17,820
Posted By rv7charlie
Hi Ross, To clarify (at least for me), are you...

Hi Ross,

To clarify (at least for me), are you actually running the engine (controller operating) on just alternator power when you do the 'load dump'? That, or more accurately, dumping both battery...
Forum: RV General Discussion/News 06-15-2018, 08:49 AM
Replies: 51
Views: 2,512
Posted By rv7charlie
Yeah, I didn't think it looked like a subD...

Yeah, I didn't think it looked like a subD socket. But there are 'rolled' pins & sockets that are kinda cheezy.
Forum: RV General Discussion/News 06-15-2018, 08:33 AM
Replies: 11
Views: 662
Posted By rv7charlie
If you're committed to it, you might consider the...

If you're committed to it, you might consider the white latex foam instead of the 'Great Stuff' urethane foam. The latex stuff is nowhere near as powerful in its expansion pressure.
Forum: Electrical Systems 06-14-2018, 05:32 PM
Replies: 41
Views: 1,866
Posted By rv7charlie
Correlation cannot be assumed to be...

Correlation cannot be assumed to be causation.

Can you cite lab tests demonstrating starter current spikes failing current technology a/c electronics? Be aware that there *were* lab tests...
Forum: Electrical Systems 06-14-2018, 02:20 PM
Replies: 41
Views: 1,866
Posted By rv7charlie
Yeah, you could. :-) Let's start with why we...

Yeah, you could. :-)

Let's start with why we install protection devices at the supply end of the wire (instead of on the device).

Explain that, and then we'll move forward.
Forum: COMM 06-14-2018, 12:50 PM
Replies: 10
Views: 537
Posted By rv7charlie
Are all symptoms repeatable? (important...) If...

Are all symptoms repeatable? (important...)

If you shut down the engine, can you again transmit, etc?

If you restart the engine, can you again *not* transmit?

If all symptoms are consistently...
Forum: RV General Discussion/News 06-13-2018, 08:25 PM
Replies: 51
Views: 2,512
Posted By rv7charlie
Again, old hangar tales. Slice open a crimp with...

Again, old hangar tales.

Slice open a crimp with a diamond saw and you will see the same solid peak (assuming the crimp was made correctly). And if you use a 'bare' crimp sleeve (no grab of the...
Forum: RV General Discussion/News 06-13-2018, 06:54 PM
Replies: 28
Views: 1,198
Posted By rv7charlie
Tom, Here's a useful description of an...

Tom,

Here's a useful description of an electrical buss (bus; busbar, etc):
https://en.wikipedia.org/wiki/Busbar

If you're using breakers, the bus is the set of hot terminals on the breakers, strung...
Forum: Electrical Systems 06-13-2018, 03:42 PM
Replies: 12
Views: 665
Posted By rv7charlie
If you don't have a good grasp on the 'whys' of...

If you don't have a good grasp on the 'whys' of grounding methods, be a bit cautious on how you distribute multiple forests of tabs.

This is a gross oversimplification, but look at the 'geography'...
Forum: RV-12 06-13-2018, 03:13 PM
Replies: 5
Views: 614
Posted By rv7charlie
Isn't running extra wire a change from the plans?...

Isn't running extra wire a change from the plans? I've never built an ELSA, so I don't know how strict that requirement actually is.
Forum: RV General Discussion/News 06-13-2018, 03:06 PM
Replies: 11
Views: 570
Posted By rv7charlie
AN bolt values on aluminum hydraulic fittings?

AN bolt values on aluminum hydraulic fittings?
Forum: RV General Discussion/News 06-13-2018, 01:52 PM
Replies: 28
Views: 1,198
Posted By rv7charlie
If you're married to breakers (I'm not), wiring...

If you're married to breakers (I'm not), wiring the hot 'buss' is a bigger project in a 2D array than a 1D array (line). And orders of magnitude more expensive than ATO fuses, but that's an...
Forum: RV General Discussion/News 06-13-2018, 01:31 PM
Replies: 51
Views: 2,512
Posted By rv7charlie
Of course, the *probability* of breaking at all...

Of course, the *probability* of breaking at all went up by several hundred percent because there was no strain relief protecting the stress riser at the joint, but you could certainly see the...
Forum: RV General Discussion/News 06-13-2018, 11:11 AM
Replies: 51
Views: 2,512
Posted By rv7charlie
And that matters because...? (Really analyse the...

And that matters because...? (Really analyse the full installation of the terminal and wire before answering.)
Forum: RV General Discussion/News 06-13-2018, 09:19 AM
Replies: 51
Views: 2,512
Posted By rv7charlie
Exactly. My earlier post worked on the premise...

Exactly.

My earlier post worked on the premise that if you need to ask, you probably don't have the skills, experience and equipment to get consistent good results. And there remains the issue of...
Forum: Electrical Systems 06-13-2018, 09:03 AM
Replies: 41
Views: 1,866
Posted By rv7charlie
Interesting that working for multiple major...

Interesting that working for multiple major players in the aviation field, and working on everything from military hardware to bizjets to single engine GA a/c for around 50 years leaves you 'not well...
Forum: VAF Classifieds (posts in here deleted after 30 days) 06-13-2018, 08:29 AM
Replies: 2
Views: 170
Posted By rv7charlie
Did you check with Van's already? I'm pretty sure...

Did you check with Van's already? I'm pretty sure I've bought a 12" kit more recently than that.
Forum: RV General Discussion/News 06-12-2018, 10:03 PM
Replies: 51
Views: 2,512
Posted By rv7charlie
If you don't have a background in electronics...

If you don't have a background in electronics (meaning that you're very handy with a soldering iron), go with crimps for subD pins.

I've had several careers as an electronic tech. I've had a *lot*...
Forum: Electrical Systems 06-11-2018, 02:46 PM
Replies: 12
Views: 665
Posted By rv7charlie
Justin, If all your connections are perfect,...

Justin,

If all your connections are perfect, there will be no practical difference between grounding on the starter vs grounding on an engine bolt somewhere. But, occasionally someone has issues...
Forum: Electrical Systems 06-11-2018, 11:40 AM
Replies: 12
Views: 665
Posted By rv7charlie
There are a lot of things on certified a/c that...

There are a lot of things on certified a/c that get done better in the experimental world....

There's a pretty good guide to grounding practices in the Aeroelectric Connection book. The book also...
Forum: VAF Classifieds (posts in here deleted after 30 days) 06-10-2018, 06:35 PM
Replies: 2
Views: 391
Posted By rv7charlie
I'll take them, if you can keep the shipping...

I'll take them, if you can keep the shipping reasonable. You can email me at mcsophie@gmail.com with your paypal address, and I'll send my shipping info.

Just let me know how much to send to cover...
Forum: RV General Discussion/News 06-10-2018, 06:25 PM
Replies: 555
Views: 113,375
Posted By rv7charlie
I've never worried too much about the odds of...

I've never worried too much about the odds of catching a bug in flight. But they seem to catch the plane's orifices easily while it's sitting still. :-)

I don't get anywhere near ice either. If it's...
Forum: RV General Discussion/News 06-10-2018, 05:58 PM
Replies: 555
Views: 113,375
Posted By rv7charlie
Hmmm. I wonder if anyone makes a suction cup...

Hmmm. I wonder if anyone makes a suction cup (similar to what's used to stick stuff to windshields) big enough to completely cover the cap. If so, a low profile disc type magnet bonded inside might...
Forum: Electrical Systems 06-09-2018, 05:42 PM
Replies: 242
Views: 12,137
Posted By rv7charlie
I can follow his logic. If you feel you need...

I can follow his logic. If you feel you need redundant power feeds to a bus, the single stud would be a single point of failure for both feeds if it came loose.
Forum: RV General Discussion/News 06-09-2018, 01:49 PM
Replies: 11
Views: 876
Posted By rv7charlie
Are you saying you want the lights on in landing...

Are you saying you want the lights on in landing mode, any time the master is on? No concerns for battery capacity if you lose your alternator in flight?

Are you talking about a controller that does...
Forum: Temp / Test / Misc. (posts deleted after 2 weeks) 06-07-2018, 05:34 PM
Replies: 10
Views: 1,001
Posted By rv7charlie
Wish I'd seen this in time; I'm only ~40 miles...

Wish I'd seen this in time; I'm only ~40 miles away & could have loaned him a cap.

Charlie
Forum: VAF Classifieds (posts in here deleted after 30 days) 06-07-2018, 11:41 AM
Replies: 2
Views: 363
Posted By rv7charlie
I'll gamble. :-) Sending PM.

I'll gamble. :-) Sending PM.
Forum: VAF Classifieds (posts in here deleted after 30 days) 06-05-2018, 03:03 PM
Replies: 5
Views: 542
Posted By rv7charlie
I'll take it, if it's the same model that Van...

I'll take it, if it's the same model that Van sells for carb'd engines. (There are dozens of variations from Facet.)

You can email me at mcsophie@gmail.com with your preferred payment method, & I'll...
Forum: RV General Discussion/News 06-05-2018, 12:30 PM
Replies: 17
Views: 2,466
Posted By rv7charlie
Way to go! I'm sure you'll have your test time...

Way to go! I'm sure you'll have your test time flown off by the 1st Saturday in November; plan on being the 1st -14 to attend our annual Pumpkin Drop here at Slobovia Outernational, just north of...
Forum: RV General Discussion/News 06-03-2018, 05:52 PM
Replies: 7
Views: 603
Posted By rv7charlie
I got at least one threaded fastener in my -7 my...

I got at least one threaded fastener in my -7 my kit that wasn't.

So they might check every piece for hardness, but they sure don't check every one for function.
Forum: COMM 06-02-2018, 10:38 PM
Replies: 10
Views: 537
Posted By rv7charlie
Terminology (pardon the unavoidable pun): tip,...

Terminology (pardon the unavoidable pun): tip, ring, shield.

The wire's shield connects to the jack's shield; not the ring. :-) The ring gets mic audio, in this application.

Your test clip is on...
Forum: RV General Discussion/News 06-02-2018, 11:46 AM
Replies: 3
Views: 321
Posted By rv7charlie
Just a heads-up. Any alternator you're likely to...

Just a heads-up. Any alternator you're likely to encounter uses either coils of wire moving through a magnetic field, or a magnetic field rotating through coils, to generate electricity. The alts we...
Forum: COMM 06-01-2018, 10:02 PM
Replies: 10
Views: 537
Posted By rv7charlie
Yes, shorting tip to ground should trigger the...

Yes, shorting tip to ground should trigger the transmit line in the radio.

And corrosion on the board edge and connector pins can be surprisingly difficult to remove. The connector is a real pain...
Forum: RV General Discussion/News 06-01-2018, 03:05 PM
Replies: 16
Views: 1,335
Posted By rv7charlie
For visual reference, you'll have to find what...

For visual reference, you'll have to find what works for you. My 1st few loops were in the back seat of a Decathalon. I was taught to look to the side & keep the wing tip on the horizon. Worked...
Forum: COMM 06-01-2018, 02:48 PM
Replies: 10
Views: 537
Posted By rv7charlie
Yep; could be. Or, depending on how the plane is...

Yep; could be. Or, depending on how the plane is wired, could be a bad connection at the intercom connector. If the PTT wire goes in/out of the intercom, then it could be anywhere along the path from...
Forum: RV General Discussion/News 06-01-2018, 01:56 PM
Replies: 16
Views: 1,335
Posted By rv7charlie
Figs, Just read your reply. If you fly a loop in...

Figs,

Just read your reply. If you fly a loop in a vertical plane, you'll hit your upline wake as you pull back to horizontal. It won't be a buffet though; it will be a bump. If you're just slightly...
Forum: RV General Discussion/News 06-01-2018, 01:49 PM
Replies: 16
Views: 1,335
Posted By rv7charlie
As another non-competitor, I agree with Scott...

As another non-competitor, I agree with Scott about the area at the top. I had a tendency to ease off on g loading too soon on the way up; I was taught (by a Swift airshow pilot) to maintain the same...
Forum: COMM 05-31-2018, 09:25 PM
Replies: 10
Views: 537
Posted By rv7charlie
1. Are you getting a transmit light on the radio?...

1. Are you getting a transmit light on the radio? If not: problem with PTT line.

2. Can you pull the fuse or breaker for just the intercom? If so: most intercoms 'fail safe' to directly connect the...
Forum: RV General Discussion/News 05-31-2018, 06:20 PM
Replies: 13
Views: 1,423
Posted By rv7charlie
Bill beat me to it. :-) I reclined the seat in my...

Bill beat me to it. :-) I reclined the seat in my -4, & it made it a *much* more comfortable plane all around. And the military figured out a long time ago that reclining seats improves g...
Forum: VAF Classifieds (posts in here deleted after 30 days) 05-31-2018, 02:18 PM
Replies: 3
Views: 271
Posted By rv7charlie
PM sent on VMS stuff.

PM sent on VMS stuff.
Forum: RV-10 05-31-2018, 11:22 AM
Replies: 42
Views: 2,649
Posted By rv7charlie
Data point: When I first got into flying, I saw a...

Data point: When I first got into flying, I saw a Vari Eze that had shot bags in the nose for ballast. The plane was likely less than 10 years old at the time (this was late '80s/early '90s). The...
Forum: Electrical Systems 05-31-2018, 08:39 AM
Replies: 242
Views: 12,137
Posted By rv7charlie
Two potential issues occur to me about using a...

Two potential issues occur to me about using a fuse position as power input to a bus. One is a caution that a single blade position will have a current limit lower than the stud input location. The...
Forum: RV General Discussion/News 05-30-2018, 02:00 PM
Replies: 25
Views: 1,699
Posted By rv7charlie
Hi Matt, Good to hear from someone who's still a...

Hi Matt,

Good to hear from someone who's still a pro in the field. Care to address the custom molded earpieces, relative to how well they seal the ear canal vs. using foam or multi-ribbed silicone?...
Forum: RV General Discussion/News 05-29-2018, 07:02 PM
Replies: 25
Views: 1,699
Posted By rv7charlie
Aaannnddd if one wears glasses (or sunglasses),...

Aaannnddd if one wears glasses (or sunglasses), the same issue arises. Without a good seal against the head around one's ears, regular and noise cancelling muff style headsets have the same issue...
Forum: Electrical Systems 05-29-2018, 04:13 PM
Replies: 134
Views: 30,176
Posted By rv7charlie
Just a reminder, this thread started as a poll...

Just a reminder, this thread started as a poll asking what alternator you've used, and your experience with it. Poll choices were automotive, Plane Power, or B&C (no option for Van's old offering,...
Forum: RV General Discussion/News 05-29-2018, 04:06 PM
Replies: 25
Views: 1,699
Posted By rv7charlie
I've owned a -4 for most of the last 24...

I've owned a -4 for most of the last 24 years.

After about a decade of use/return for repair/use/repeat with a couple pairs of Lightspeeds, I bought my 1st pair of Halos. Let my wife try them first,...
Forum: Traditional Aircraft Engines 05-29-2018, 09:19 AM
Replies: 16
Views: 859
Posted By rv7charlie
I mentioned earlier that I'd seen some actual fwf...

I mentioned earlier that I'd seen some actual fwf weights for Lyc installations. I just stumbled across one link.

https://deej.net/sportsman/engine-weight.html

Charlie
Forum: RV General Discussion/News 05-29-2018, 07:13 AM
Replies: 555
Views: 113,375
Posted By rv7charlie
You must not have the same critters in your neck...

You must not have the same critters in your neck of the woods. The ones down here start building several to many inches up the tube, and work their way out.

Besides, the whole point is to avoid the...
Forum: RV General Discussion/News 05-28-2018, 09:05 PM
Replies: 555
Views: 113,375
Posted By rv7charlie
Certainly *looks* cooler than my little discs of...

Certainly *looks* cooler than my little discs of aluminum window screen, prosealed on my vent openings. Not sure it would be as effective, though. We have bees & wasps in my area that are quite adept...
Forum: RV-10 05-27-2018, 09:12 PM
Replies: 42
Views: 2,649
Posted By rv7charlie
But if it takes 50 lbs in the baggage area, it...

But if it takes 50 lbs in the baggage area, it might only take 2 lbs on the tailspring. Moment of inertia should be the same, right?
Forum: RV-10 05-27-2018, 02:42 PM
Replies: 42
Views: 2,649
Posted By rv7charlie
And report back after your 1st long solo cross...

And report back after your 1st long solo cross country...
Forum: Alternative Engines 05-25-2018, 05:51 PM
Replies: 19
Views: 1,184
Posted By rv7charlie
If it's classified as a glider (and what you can...

If it's classified as a glider (and what you can call a glider in the homebuilt world is pretty...liberal), then you don't need to worry about light sport rules. The medical rules are different for...
Forum: RV Building Tips/Techniques 05-25-2018, 03:31 PM
Replies: 7
Views: 602
Posted By rv7charlie
What are you building? The later pre-punched...

What are you building? The later pre-punched stuff is really close, even if not perfect. Like David said, metal shims work if the gap is large, but for spots where the skin just gets pulled in...
Forum: Traditional Aircraft Engines 05-24-2018, 02:45 PM
Replies: 16
Views: 859
Posted By rv7charlie
Thanks; that's what I thought, but wasn't sure....

Thanks; that's what I thought, but wasn't sure. My comment was about angle valve engines, which are typically 25-35 lbs heavier than the parallel valve engines. Kind of a bummer that Lyc chose to...
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