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Search took 0.15 seconds. Search: Posts Made By: rv7charlie
Forum: Tools Today, 03:36 PM
Replies: 30
Views: 1,428
Posted By rv7charlie
If you can get past the fixation on 'certified'...

If you can get past the fixation on 'certified' (you're building an experimental, after all), you can easily self-calibrate a torque wrench, at least at the smaller values. A one lb weight one inch...
Forum: VAF Classifieds (posts in here deleted after 30 days) Yesterday, 01:24 PM
Replies: 2
Views: 474
Posted By rv7charlie
pm sent on pump & valve Charlie

pm sent on pump & valve

Charlie
Forum: COMM Yesterday, 11:16 AM
Replies: 5
Views: 369
Posted By rv7charlie
Simple answer: don't worry about it. The PTT just...

Simple answer: don't worry about it. The PTT just takes a sense line to ground potential, and any ground will do, for that purpose. The radio itself is almost certainly grounded to the instrument...
Forum: ADS-B 02-18-2019, 02:55 PM
Replies: 105
Views: 4,721
Posted By rv7charlie
Will you feel the same way when the 'black box'...

Will you feel the same way when the 'black box' built into all current cars gets datalinked to a DOT data mine, you you get fined every time you slip 5mph over the speed limit or get closer than the...
Forum: ADS-B 02-17-2019, 10:15 AM
Replies: 105
Views: 4,721
Posted By rv7charlie
It's not just the FAA that can be an issue. Some...

It's not just the FAA that can be an issue. Some of us pre-millennials just don't like sharing our entire lives with anyone and everyone motivated to look/listen. And there can be legit reasons to...
Forum: RV General Discussion/News 02-17-2019, 09:59 AM
Replies: 24
Views: 1,436
Posted By rv7charlie
Very do-able, if you're willing to use in-tank...

Very do-able, if you're willing to use in-tank pumps. But for inline use, it'll be a problem. All the turbine pumps I've seen have two significant issues for inline use. They will not self-prime (no...
Forum: RV-10 02-16-2019, 06:44 PM
Replies: 19
Views: 1,805
Posted By rv7charlie
Fuel load? Baggage load?

Fuel load?
Baggage load?
Forum: ADS-B 02-16-2019, 02:38 PM
Replies: 105
Views: 4,721
Posted By rv7charlie
Are you sure about that? I think that all it...

Are you sure about that? I think that all it suppresses is your N number; isn't the raw code of the ADSB unit (which is tied to your N number in the FAA database) still transmitted?
Forum: Safety 02-16-2019, 09:45 AM
Replies: 22
Views: 1,679
Posted By rv7charlie
I'd direct your attention to Avemco, and their...

I'd direct your attention to Avemco, and their refusal to pay a claim related to a LongEZ a couple of decades ago. The owner had made an undocumented mod, and then returned the mod to the original...
Forum: Glass Cockpit 02-15-2019, 06:17 PM
Replies: 36
Views: 2,596
Posted By rv7charlie
Or, we could lobby EAA, to lobby FAA, to revise...

Or, we could lobby EAA, to lobby FAA, to revise the IFR GPS rules to align them with the ground based nav/approach rules: for experimentals, use would be performance based. If it's a WAAS navigator...
Forum: Alternative Engines 02-15-2019, 03:25 PM
Replies: 96
Views: 8,697
Posted By rv7charlie
And it would eliminate a 2gal 100psi-capable...

And it would eliminate a 2gal 100psi-capable tank, the place to put it, and 2 lgal of unusable fuel.
Forum: RV General Discussion/News 02-15-2019, 08:34 AM
Replies: 31
Views: 1,941
Posted By rv7charlie
I see this as two different questions, one about...

I see this as two different questions, one about workmanship; the other more, well, philosophical.

I would say that you confirm quality of cable/connection the same way that you confirm the rest of...
Forum: Glass Cockpit 02-15-2019, 08:14 AM
Replies: 8
Views: 564
Posted By rv7charlie
Hate to break it to you, but there are things in...

Hate to break it to you, but there are things in a Van's kit that aren't 'aircraft grade'.

Maintaining high quality is a very good idea, but some rational thought is in order to know when good...
Forum: Alternative Engines 02-14-2019, 07:03 PM
Replies: 96
Views: 8,697
Posted By rv7charlie
I had a phone conversation with a tech at Walbro...

I had a phone conversation with a tech at Walbro a couple of years ago, about PWM & their gerotor pumps. He told me that the issue was effectively 'hammering' (my word) on the gears due to the high...
Forum: Tools 02-14-2019, 04:58 PM
Replies: 30
Views: 1,428
Posted By rv7charlie
Probably, though Amazon's typical...

Probably, though Amazon's typical less-than-useful description doesn't actually specify it.

Here's a cheap example of a stand-alone gauge; though not in a range useful to...
Forum: Tools 02-14-2019, 04:31 PM
Replies: 30
Views: 1,428
Posted By rv7charlie
Apologies to those who already know this, but...

Apologies to those who already know this, but for you that are new to torque wrenches, here are a couple of things worth knowing.

1. 'Click' type wrenches are really convenient, but do *need*...
Forum: RV General Discussion/News 02-14-2019, 02:01 PM
Replies: 31
Views: 1,941
Posted By rv7charlie
The problem can arise in the situation I...

The problem can arise in the situation I described earlier. If the heavy duty ground is lost, and you have a few light-gauge ground wires (mag shields, sensor shields, etc) connecting the engine to...
Forum: RV General Discussion/News 02-14-2019, 08:48 AM
Replies: 31
Views: 1,941
Posted By rv7charlie
It wasn't an issue of tight or not; it was an...

It wasn't an issue of tight or not; it was an issue of cross sectional area and type of metal (conductivity) of the conductor. What amounted to a small gauge steel cable became a heater, with starter...
Forum: RV General Discussion/News 02-14-2019, 08:38 AM
Replies: 31
Views: 1,941
Posted By rv7charlie
That might be true for normal electrical loads,...

That might be true for normal electrical loads, but I'd be very leery of expecting them to carry starting loads. Not because of explosion risk, but the risk of weakening and eventually failing the...
Forum: Tools 02-14-2019, 08:03 AM
Replies: 7
Views: 574
Posted By rv7charlie
If you want to keep your heat, you'll obviously...

If you want to keep your heat, you'll obviously have to go all the way to the ceiling, unless you want the divider to include your own false ceiling. I like Mike's idea of 1/2" insulation board, but...
Forum: RV General Discussion/News 02-14-2019, 07:52 AM
Replies: 31
Views: 1,941
Posted By rv7charlie
Hmmm... Don't forget that the most likely...

Hmmm...

Don't forget that the most likely failure point is the termination.
Forum: RV General Discussion/News 02-13-2019, 08:42 AM
Replies: 33
Views: 3,261
Posted By rv7charlie
If you're really thinking Cirrus money, have you...

If you're really thinking Cirrus money, have you thought about the Cessna TTX? I know less than nothing about either one, but a friend who does a lot of corporate flying in literally hundreds of a/c...
Forum: VAF Classifieds (posts in here deleted after 30 days) 02-12-2019, 05:37 PM
Replies: 6
Views: 381
Posted By rv7charlie
Well that's a bummer. I could use a replacement...

Well that's a bummer. I could use a replacement dome for mine right now, but have been too lazy to order one.
Forum: VAF Classifieds (posts in here deleted after 30 days) 02-12-2019, 04:16 PM
Replies: 6
Views: 381
Posted By rv7charlie
Did you check with Van's? It's been a few years,...

Did you check with Van's? It's been a few years, but I bought one from 'the source' for my '91 vintage -4.
Forum: Temp / Test / Misc. (posts deleted after 2 weeks) 02-12-2019, 08:08 AM
Replies: 26
Views: 1,035
Posted By rv7charlie
Hi Mickey, Just a heads-up about zeners. To...

Hi Mickey,

Just a heads-up about zeners. To avoid someone coming to grief in the future after reading this, zeners very definitely *must* be installed in the correct orientation....
Forum: Temp / Test / Misc. (posts deleted after 2 weeks) 02-11-2019, 09:26 PM
Replies: 26
Views: 1,035
Posted By rv7charlie
Just so you don't feel all alone, the same...

Just so you don't feel all alone, the same failure in his -8 a couple of weeks ago.

If the diode is burned, that's almost certainly the cause of your problems. If it was installed backward, it would...
Forum: RV General Discussion/News 02-11-2019, 09:14 AM
Replies: 12
Views: 932
Posted By rv7charlie
If the hangar has a metal roof....

If the hangar has a metal roof....
Forum: RV General Discussion/News 02-10-2019, 03:43 PM
Replies: 15
Views: 870
Posted By rv7charlie
https://www.nbcnews.com/science/space/faa-issues-s...

https://www.nbcnews.com/science/space/faa-issues-spaceport-license-midland-airport-texas-n207746
Forum: COMM 02-10-2019, 01:47 PM
Replies: 30
Views: 6,045
Posted By rv7charlie
I'm far from being an authority, but my...

I'm far from being an authority, but my understanding is that while GPS must be TSO for IFR even in homebuilts, VOR/ILS can be whatever 'meets the requirements'. Perhaps someone with more intimate...
Forum: RV-14 02-10-2019, 09:10 AM
Replies: 11
Views: 1,085
Posted By rv7charlie
One very good reason to use teflon instead of...

One very good reason to use teflon instead of traditional hose liners is the lifespan of the hose. The traditional hoses have a fairly short life limit, if you follow recommendations.

For hard line:...
Forum: Electrical Systems 02-09-2019, 09:11 PM
Replies: 16
Views: 898
Posted By rv7charlie
I use the technique you describe for holding prop...

I use the technique you describe for holding prop balance weights on the inside of my spinner bulkhead. But, and it's a big but, I have access to both ends of the fastener.

If you use the technique...
Forum: RV General Discussion/News 02-09-2019, 10:02 AM
Replies: 12
Views: 1,361
Posted By rv7charlie
I know it wasn't funny to you, but it's pretty...

I know it wasn't funny to you, but it's pretty funny to anyone living in the deep south to hear someone complaining about that. :-)

Humidity above 80% is almost the norm down here, and 30 degree...
Forum: RV-14 02-07-2019, 08:06 PM
Replies: 24
Views: 2,363
Posted By rv7charlie
If you want to adapt something, there are...

If you want to adapt something, there are options; for...
Forum: RV General Discussion/News 02-07-2019, 04:24 PM
Replies: 12
Views: 1,065
Posted By rv7charlie
FWIW, my (purchased) '91 RV-4 has had the...

FWIW, my (purchased) '91 RV-4 has had the original stainless tape on the flap faying surfaces since new. Invisible with the flaps up, and a nice flap angle indicator as they're extended (if you...
Forum: RV-8/8A 02-07-2019, 02:41 PM
Replies: 27
Views: 3,604
Posted By rv7charlie
Looks like there will be a home + hangar on the...

Looks like there will be a home + hangar on the market soon here at Slobovia Outernational (MS71) near Jackson MS. Eleven property owners here, each owning an equal share in the corp that owns the...
Forum: RV General Discussion/News 02-07-2019, 11:02 AM
Replies: 11
Views: 752
Posted By rv7charlie
I can't point you to a readily accessible...

I can't point you to a readily accessible reference, but the 'machined pin' gold plated crimp style Dsub pins can handle around 7.5A each. The cheap, rolled pins can handle around 3A.

By using...
Forum: RV General Discussion/News 02-07-2019, 09:43 AM
Replies: 11
Views: 752
Posted By rv7charlie
Loman, Several assumptions there need...

Loman,

Several assumptions there need attention.

The alternator itself (assuming it's 60A or less capacity) will never come close to stressing a 60A ANL, no matter how big a hissy fit it throws....
Forum: RV General Discussion/News 02-07-2019, 07:57 AM
Replies: 15
Views: 1,032
Posted By rv7charlie
I've *read about* people using air to transfer...

I've *read about* people using air to transfer fuel from storage tanks, but I've never seen it done. I can think of a couple of things that would worry me about doing it.
Forum: RV General Discussion/News 02-06-2019, 05:03 PM
Replies: 15
Views: 1,032
Posted By rv7charlie
If you want to go to a little trouble, you could...

If you want to go to a little trouble, you could pick up 2 or 3 of the little in-tank turbine pumps & array them on a 'stalk' so they will fit in the bung hole of the drum. You'd have to extend the...
Forum: RV General Discussion/News 02-06-2019, 04:56 PM
Replies: 15
Views: 1,032
Posted By rv7charlie
During the aftermath of Katrina, with power off...

During the aftermath of Katrina, with power off for about a week, several of us on my home field used a Harbor Freight manual rotary pump to access the avgas in our community fuel farm. Never was a...
Forum: RV General Discussion/News 02-06-2019, 04:31 PM
Replies: 11
Views: 752
Posted By rv7charlie
In most certified (and homebuilt) a/c, the master...

In most certified (and homebuilt) a/c, the master contactor is considered to be 'pilot activated circuit protection'.

If you have convinced yourself that you need it, you can add catastrophic fault...
Forum: RV General Discussion/News 02-06-2019, 12:16 PM
Replies: 2
Views: 225
Posted By rv7charlie
You're missing ground (shield) continuity from...

You're missing ground (shield) continuity from the barrel of the jack to the intercom (or radio, if there's no intercom).

Remove the jack from the panel, so it's floating in air. Use an ohm meter...
Forum: COMM 02-06-2019, 11:06 AM
Replies: 12
Views: 612
Posted By rv7charlie
I was addressing the 'cable too short' issue....

I was addressing the 'cable too short' issue. Terminating at the antenna would be in whatever manner the antenna mfgr recommends. There are tens of thousands of dipole antennas in service that use...
Forum: RV General Discussion/News 02-06-2019, 09:03 AM
Replies: 13
Views: 2,003
Posted By rv7charlie
If the rule is inflexible, you could do an end...

If the rule is inflexible, you could do an end run around it by installing a 'packet' style central unit just outside the building. You don't need to run extensive ducting; just get the outlet and...
Forum: COMM 02-06-2019, 08:56 AM
Replies: 12
Views: 612
Posted By rv7charlie
Here you...

Here you go:
https://www.amazon.com/Splice-Connectors-extending-cables-Compatible/dp/B00KRJMQVK

Typical loss at com/nav frequencies to do this would probably be around 1-2 dB; you'll never know it's...
Forum: RV General Discussion/News 02-06-2019, 08:45 AM
Replies: 14
Views: 1,970
Posted By rv7charlie
There have been at least three versions of oplims...

There have been at least three versions of oplims that I've seen. The really old ones that require re-issue after major mods, then ones where the operator could return to phase one on his own, and...
Forum: Temp / Test / Misc. (posts deleted after 2 weeks) 02-05-2019, 04:21 PM
Replies: 8
Views: 739
Posted By rv7charlie
Who's Toady? ;-)

Who's Toady?


;-)
Forum: RV General Discussion/News 02-05-2019, 10:25 AM
Replies: 59
Views: 4,484
Posted By rv7charlie
OK, I'm going to demonstrate my untrained...

OK, I'm going to demonstrate my untrained ignorance. If Bernoulli says that speed and area have an inverse relationship, and speed and pressure have an inverse relationship (redneck engineering...
Forum: Safety 02-04-2019, 09:56 PM
Replies: 3
Views: 683
Posted By rv7charlie
Subscribe to Kitplanes Magazine, & peruse the...

Subscribe to Kitplanes Magazine, & peruse the archives.
Forum: RV General Discussion/News 02-04-2019, 08:48 PM
Replies: 59
Views: 4,484
Posted By rv7charlie
One differential pressure...

One differential pressure sensor:
https://www.nxp.com/docs/en/data-sheet/MPXV5004G.pdf

Analog voltage output, could be fed to a spare analog input in an EFIS or engine monitor.

Temperature...
Forum: RV General Discussion/News 02-04-2019, 06:45 PM
Replies: 59
Views: 4,484
Posted By rv7charlie
Steve, I'm always trying to learn more stuff...

Steve,

I'm always trying to learn more stuff about cooling vs drag (water cooled alt engine), so...I'm curious about your info source indicating that a diffuser on a heat exchanger exit will...
Forum: Safety 02-04-2019, 11:26 AM
Replies: 47
Views: 3,424
Posted By rv7charlie
I suspect that you're getting way too wrapped up...

I suspect that you're getting way too wrapped up in that one '20g' word in the report. The seat back was torn loose at the top, and the instrument panel was caved in. Unless the autopsy said he died...
Forum: RV Ongoing Maintenance Issues 02-04-2019, 10:11 AM
Replies: 7
Views: 591
Posted By rv7charlie
Here's a link to Odyssey tech...

Here's a link to Odyssey tech info:
http://www.odysseybattery.com/documents/US-ODY-TM-002_1214.pdf

A quote from that document:
Longer storage life
Unlike conventional batteries that need a recharge...
Forum: RV Ongoing Maintenance Issues 02-04-2019, 08:14 AM
Replies: 7
Views: 591
Posted By rv7charlie
'Sealed' needs...

'Sealed' needs qualifying.
https://www.sealedperformance.com.au/faq/what-is-the-difference-between-sla-vrla-and-agm-batteries/

In normal operation, they don't vent anything. If they are physically...
Forum: RV Ongoing Maintenance Issues 02-03-2019, 07:19 PM
Replies: 10
Views: 579
Posted By rv7charlie
Our EAA chapter owns one, available to members of...

Our EAA chapter owns one, available to members of the local chapter (which you can join for $50).

Charlie
Slobovia Outernational (MS71)
Forum: RV-14 02-03-2019, 06:47 PM
Replies: 9
Views: 2,397
Posted By rv7charlie
Perfect application for those worthless (and...

Perfect application for those worthless (and almost free) Harbor Freight tools.

For pass-throughs, check the aviation plumbing isle at the local big box store for stainless grab bars. With those,...
Forum: RV General Discussion/News 02-03-2019, 03:49 PM
Replies: 12
Views: 932
Posted By rv7charlie
Kitplanes has had probably a dozen different base...

Kitplanes has had probably a dozen different base station antenna designs over the years. A stroll through their archives should give you plenty of ideas.
Forum: Traditional Aircraft Engines 02-02-2019, 11:18 PM
Replies: 22
Views: 995
Posted By rv7charlie
I've run mogas in a carb 320 for 20 yrs, with one...

I've run mogas in a carb 320 for 20 yrs, with one vapor lock incident. Winter blend gas on a 100+ degree day after a heat soak.

FWIW...
Forum: Traditional Aircraft Engines 02-02-2019, 11:06 PM
Replies: 22
Views: 995
Posted By rv7charlie
Or an intermittent stuck valve.

Or an intermittent stuck valve.
Forum: RV Ongoing Maintenance Issues 02-02-2019, 05:34 PM
Replies: 56
Views: 28,385
Posted By rv7charlie
You can't install an external 'in addition to'...

You can't install an external 'in addition to' the internal regulator. You could mod the alternator to use an external, but there's no way to use two at once; the regulator controls field voltage,...
Forum: Safety 02-02-2019, 02:34 PM
Replies: 47
Views: 3,424
Posted By rv7charlie
F1R, That was less thread drift than...

F1R,

That was less thread drift than dimension/reality shift. ;-)
Forum: Safety 02-02-2019, 01:14 PM
Replies: 47
Views: 3,424
Posted By rv7charlie
Look at the last pic in the CAA report, of an...

Look at the last pic in the CAA report, of an intact seat back. I'm not an engineer, though I've sought their advice when building a motor mount. Perhaps an actual engineer will weigh in on the...
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