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Search: Posts Made By: rv7charlie
Forum: RV Photo/Video URLs 07-18-2018, 11:58 AM
Replies: 82
Views: 8,670
Posted By rv7charlie
Feel free to email me off-list, for a secure...

Feel free to email me off-list, for a secure image hosting site.

Charlie
mcsophie@gmail.com
Forum: Tools 07-16-2018, 10:59 AM
Replies: 19
Views: 1,604
Posted By rv7charlie
If you know the length, you can buy virtually any...

If you know the length, you can buy virtually any blade pitch/profile/material/etc you can imagine, from a local machine shop supplier, or from a vendor like McMaster-Carr. Either will weld you a...
Forum: Traditional Aircraft Engines 07-15-2018, 03:30 PM
Replies: 9
Views: 783
Posted By rv7charlie
Did you read post #6?

Did you read post #6?
Forum: Traditional Aircraft Engines 07-14-2018, 06:31 PM
Replies: 9
Views: 783
Posted By rv7charlie
If it's a key switch & not individual switches,...

If it's a key switch & not individual switches, it's possible for the switch to ground both mags in the 'off' position, but *not* ground one or the other when in Left or Right positions.

Just a...
Forum: RV General Discussion/News 07-14-2018, 03:20 PM
Replies: 21
Views: 1,356
Posted By rv7charlie
Can't speak to FedEx (don't want to, either), but...

Can't speak to FedEx (don't want to, either), but several years ago I shipped a prop from MS to the west coast via UPS. Walking in to the intake office at the UPS distribution center, they wanted to...
Forum: RV General Discussion/News 07-13-2018, 06:24 AM
Replies: 21
Views: 1,356
Posted By rv7charlie
Can you use USPS (Postal Service) to ship to that...

Can you use USPS (Postal Service) to ship to that location?
Unless you have a commercial account with UPS, USPS Priority is almost always cheaper than UPS ground, and anywhere from 3 days to a week...
Forum: RV General Discussion/News 07-11-2018, 09:17 PM
Replies: 660
Views: 127,142
Posted By rv7charlie
If you're talking inlet/core area ratio, the K&W...

If you're talking inlet/core area ratio, the K&W ratios go beyond 3-1 with fairly short duct length. The example in the book has a rectangular inlet the same width as the core, with a flair on only...
Forum: RV General Discussion/News 07-11-2018, 08:43 PM
Replies: 660
Views: 127,142
Posted By rv7charlie
Sorry; my posts are purely about diffuser...

Sorry; my posts are purely about diffuser efficiency. The requesters may have specific needs when it comes to duct positioning.

If installation needs allow it, and you try the shape changes, you...
Forum: RV General Discussion/News 07-11-2018, 08:27 PM
Replies: 660
Views: 127,142
Posted By rv7charlie
Try moving the start of the flair farther...

Try moving the start of the flair farther downstream, so the max area isn't achieved until it touches the face of the core. Also, 'invert' the transitions from round to square in the corners. Then...
Forum: RV General Discussion/News 07-11-2018, 06:04 PM
Replies: 660
Views: 127,142
Posted By rv7charlie
Looks like many commercially available products,...

Looks like many commercially available products, and what most people do when they make one. But, while I'm no authority, all the reading I've done while preparing for my alt engine project indicates...
Forum: RV-4 07-11-2018, 12:01 PM
Replies: 16
Views: 987
Posted By rv7charlie
I think a closer analogy than Caddy would be...

I think a closer analogy than Caddy would be Porsche 911 with 1950's era rear tires.
Forum: RV-12 07-11-2018, 08:27 AM
Replies: 24
Views: 2,874
Posted By rv7charlie
Welcome to the world of mogas users. ;-) I...

Welcome to the world of mogas users. ;-) I haven't dug lead out of a spark plug in a couple of decades.
Forum: RV Building Tips/Techniques 07-10-2018, 09:33 PM
Replies: 15
Views: 1,868
Posted By rv7charlie
The data I found for diffusers say max expansion...

The data I found for diffusers say max expansion is actually less than half that; 7 degrees from streamline. And for wedge diffusers (where the stream enters the diffuser at an acute angle to the...
Forum: RV Building Tips/Techniques 07-10-2018, 05:16 PM
Replies: 15
Views: 1,868
Posted By rv7charlie
No matter the size, you can bet that those...

No matter the size, you can bet that those adapters Darin printed helped flow into the SCAT tubing a bit. They look a lot like a properly designed intake runner, inside a plenum. Almost makes one...
Forum: RV General Discussion/News 07-10-2018, 05:13 PM
Replies: 11
Views: 983
Posted By rv7charlie
Carb or injected? If injected, maybe dirt in an...

Carb or injected?

If injected, maybe dirt in an injector?

Either one, intermittent sticking exhaust valve?

Either one, flaky plug or plug wire?
Forum: RV General Discussion/News 07-09-2018, 07:20 PM
Replies: 7
Views: 487
Posted By rv7charlie
No doubt that's a great flairing tool, but I (and...

No doubt that's a great flairing tool, but I (and the person I borrow it from) have made a bunch of perfectly serviceable flairs using a 'skinny candy bar' shaped tool that's about 1/4 the price....
Forum: RV-12 07-08-2018, 04:15 PM
Replies: 24
Views: 2,874
Posted By rv7charlie
That really would be nice. But I wonder if it...

That really would be nice. But I wonder if it will meet all the *other* pollution standards for cars, when run in existing engines and control systems. No way a/c engines meet automotive standards...
Forum: RV-8/8A 07-08-2018, 12:25 PM
Replies: 4
Views: 340
Posted By rv7charlie
For the inboard nose attach? The ones on my -7...

For the inboard nose attach? The ones on my -7 fuselage are steel. Roughly 0.067" including paint.
Forum: Temp / Test / Misc. (posts deleted after 2 weeks) 07-08-2018, 08:02 AM
Replies: 13
Views: 624
Posted By rv7charlie
I rolled my own with an old 430. Never compared...

I rolled my own with an old 430. Never compared prices with G's, so I can't address that, nor can I help with the newer product requirements.

I will say that standard subD backshells can be less...
Forum: RV General Discussion/News 07-07-2018, 07:55 PM
Replies: 10
Views: 880
Posted By rv7charlie
Yeah, my numbers are for tail only (in pieces),...

Yeah, my numbers are for tail only (in pieces), wings only, or fuselage only. I doubt you could fit the horizontal very well in that space, much less the vertical.
Forum: RV-6/6A 07-07-2018, 06:11 PM
Replies: 22
Views: 1,874
Posted By rv7charlie
Here's a Lyc...

Here's a Lyc document.
https://www.lycoming.com/sites/default/files/O-HO-IO-HIO-AIO%20%26%20TIO-360%20Oper%20Manual%2060297-12.pdf
You might not find your exact model listed, but all the parallel...
Forum: RV General Discussion/News 07-07-2018, 04:47 PM
Replies: 39
Views: 2,943
Posted By rv7charlie
Dave, I tend to agree with dwranda; that's why...

Dave,

I tend to agree with dwranda; that's why I mounted mine slightly aft of the sub-panel, on the panel brace rib (tipup -7). Firewall mounting creates a hole in the stainless, that's plugged...
Forum: RV-6/6A 07-07-2018, 04:09 PM
Replies: 22
Views: 1,874
Posted By rv7charlie
At altitude (7500' +), if you're happy with the...

At altitude (7500' +), if you're happy with the cruise speed/fuel burn, then that's great. A lot of guys never seem to go above 2400 in cruise. I rarely do these days, if I'm just up boring holes....
Forum: RV-4 07-07-2018, 03:47 PM
Replies: 16
Views: 987
Posted By rv7charlie
http://www.vansaircraft.com/public/rv4specs.htm 1...

http://www.vansaircraft.com/public/rv4specs.htm

1080+192(fuel)+220(passenger)=1492 lbs, without a pilot.
Were you a newborn at the time? ;-)

Van says empty weight should be 905-913. Admittedly,...
Forum: RV General Discussion/News 07-07-2018, 07:41 AM
Replies: 24
Views: 3,191
Posted By rv7charlie
Link to actual belt...

Link to actual belt specs:
https://www.napaonline.com/en/p/NBG257350

Did you take a look at the Gates .pdf I linked? There are belts spec'd in both metric and English. Within each group, there are...
Forum: RV General Discussion/News 07-06-2018, 09:04 PM
Replies: 24
Views: 3,191
Posted By rv7charlie
Looks like there are metric belts, and then there...

Looks like there are metric belts, and then there are...not-metric belts.

http://resources.kamanmarketing.com/wordpress/wp-content/uploads/2010/08/31/gates-belt-number-and-identification-chart.pdf
Forum: RV General Discussion/News 07-06-2018, 04:04 PM
Replies: 10
Views: 880
Posted By rv7charlie
Belly skin (widest thing permanently attached to...

Belly skin (widest thing permanently attached to fuse) on my -7 is ~46.625" wide. If the fuel lines are hanging out the sides (uncut on the tank end, as mine are), that'll add to width. If the...
Forum: Rocket 07-06-2018, 03:19 PM
Replies: 26
Vne
Views: 2,313
Posted By rv7charlie
I, for one, would love to know what you did to...

I, for one, would love to know what you did to your -4 to get 212 statute mph in a slight climb with a stock 160 hp Lyc. I've owned two of them, and I thought the 1st one was quite fast for 160 HP,...
Forum: Electrical Systems 07-06-2018, 01:51 PM
Replies: 8
Views: 585
Posted By rv7charlie
If you don't have anything connected to the 'I'...

If you don't have anything connected to the 'I' terminal, you should be good to go (with fat wires interchangeable, like Joe said). I realized after writing my previous post that you might have your...
Forum: RV General Discussion/News 07-06-2018, 12:03 PM
Replies: 24
Views: 3,191
Posted By rv7charlie
There's no way for us to know your flywheel...

There's no way for us to know your flywheel pulley size, alt pulley size, etc,...
Forum: Electrical Systems 07-06-2018, 07:33 AM
Replies: 8
Views: 585
Posted By rv7charlie
Justin, Does one of the small terminals have an...

Justin,

Does one of the small terminals have an 'I' stamped next to it? If so, take a look at the link in my previous post, because you probably have that type of contactor.

Here's how to check....
Forum: RV General Discussion/News 07-05-2018, 02:35 PM
Replies: 10
Views: 880
Posted By rv7charlie
I very rarely had height issues while building,...

I very rarely had height issues while building, except when doing things like re-positioning wings. If you don't have enough horizontal length in both directions to rotate a wing (I did), you'll need...
Forum: Painting your RV 07-05-2018, 02:16 PM
Replies: 5
Views: 739
Posted By rv7charlie
I don't have any actual advice. But my neighbor...

I don't have any actual advice. But my neighbor rebuilt an -8 a couple of years ago, and another pilot friend who owns a couple of body shops came over to help out with finishing (actually, insisted...
Forum: RV-12 07-05-2018, 02:01 PM
Replies: 29
Views: 8,008
Posted By rv7charlie
subD pins. (as in, period) :-) You can use the...

subD pins. (as in, period) :-)

You can use the crimpers you already have for... subD pins. The machined ones are gold plated, as Joe mentioned a few years ago in this thread. Someone else back then...
Forum: Electrical Systems 07-04-2018, 04:40 PM
Replies: 8
Views: 585
Posted By rv7charlie
Isn't it pretty unlikely that a true starter...

Isn't it pretty unlikely that a true starter contactor would use ground side switching, which is more typical for master contactors? I'd certainly avoid using one (middle one in the linked image),...
Forum: VAF Classifieds (posts in here deleted after 30 days) 07-04-2018, 03:27 PM
Replies: 1
Views: 793
Posted By rv7charlie
Link to pics & history? Location? Possible for...

Link to pics & history?
Location?
Possible for purchaser (or seller) to fly to new location, and truck the engine/etc back home? (A lot easier to move an engine without damage, than an entire...
Forum: RV General Discussion/News 07-04-2018, 03:17 PM
Replies: 10
Views: 880
Posted By rv7charlie
I've built everything, short of final assy, in a...

I've built everything, short of final assy, in a 20x21 foot space, with roughly 5' x 6' notched out of the corner for a restroom. That includes all storage of everything in the kit except the canopy,...
Forum: RV General Discussion/News 07-04-2018, 09:56 AM
Replies: 8
Views: 624
Posted By rv7charlie
true confessions....

Is this a change, or something you just noticed?

Like Toolbuilder said, the intake could have inhaled something like a rag, and it's blocking the filter, if you have vertical induction. Less likely...
Forum: RV-4 07-04-2018, 07:27 AM
Replies: 3
Views: 320
Posted By rv7charlie
The Facet just goes in series in the fuel...

The Facet just goes in series in the fuel line:

Tank>selector>Facet>engine driven pump>carb

If you're adding the Facet, the only reason to keep the wobble pump is if you want belt, suspenders, and...
Forum: RV General Discussion/News 07-03-2018, 08:20 PM
Replies: 11
Views: 1,021
Posted By rv7charlie
It will very much depend on the individual. But I...

It will very much depend on the individual. But I can tell you that the guy who built my -4 learned to fly in it after he built it.

I transitioned from nose to tailwheel while still a student; from...
Forum: RV General Discussion/News 07-03-2018, 02:19 PM
Replies: 43
Views: 2,509
Posted By rv7charlie
Here's a data point that *might* come into play...

Here's a data point that *might* come into play if the start switch itself is failing.

A lot of early starters had a mechanism that the spinning starter used to drive the bendix forward into the...
Forum: GPS 07-02-2018, 08:12 PM
Replies: 14
Views: 763
Posted By rv7charlie
It's good to hear that newer GPS antennas can...

It's good to hear that newer GPS antennas can handle such long cable runs. But Bill and I seem to agree about simplicity of installation. :-)

Charlie
Forum: GPS 07-02-2018, 02:19 PM
Replies: 14
Views: 763
Posted By rv7charlie
Dan, I know everyone (probably including Dynon)...

Dan, I know everyone (probably including Dynon) calls those 'antennas', but they are actually receivers. The only thing traveling on the wire is power & digital data. Most 'pucks' these days are...
Forum: GPS 07-02-2018, 01:18 PM
Replies: 14
Views: 763
Posted By rv7charlie
Might, depending on design. If the receiver's in...

Might, depending on design. If the receiver's in the puck, then probably. There's even a product (Skybeacon) on the market now that combines GPS/ADS-B with a position light, and you know a strobe...
Forum: RV-14 07-01-2018, 07:57 AM
Replies: 8
Views: 760
Posted By rv7charlie
Agree on the tedious screw-locking mechanism for...

Agree on the tedious screw-locking mechanism for subDs, but for inline service, you can get a spring 'bale' connection that just requires flipping two spring-wire loops to lock or unlock. And in an...
Forum: Electrical Systems 07-01-2018, 07:18 AM
Replies: 20
Views: 1,801
Posted By rv7charlie
The one Bill linked is the same frame as the...

The one Bill linked is the same frame as the Suzuki model I mentioned earlier. Note that the frame above it, with an external fan, is only slightly larger and works fine, but the external fan is...
Forum: RV-14 07-01-2018, 06:49 AM
Replies: 8
Views: 760
Posted By rv7charlie
I really hate molex style connectors; I saw many...

I really hate molex style connectors; I saw many failures in a couple of different electronics related careers. With the -14, it might be the path of least resistance to use the as-designed...
Forum: Electrical Systems 06-30-2018, 09:46 PM
Replies: 20
Views: 1,801
Posted By rv7charlie
I've used various 1-wire alts on homebuilts for...

I've used various 1-wire alts on homebuilts for about 30 years. Obviously, I like them. But...If you think you can use that control terminal to protect against damage to avionics in an overvoltage...
Forum: RV-3 06-29-2018, 10:10 PM
Replies: 25
Views: 6,779
Posted By rv7charlie
Good point. But if built light, and the initial...

Good point. But if built light, and the initial gross weight is set a few knots slower, it shouldn't be too difficult to meet the no flaps stall number. Anyone have a good idea on how many knots the...
Forum: RV-12 06-29-2018, 04:40 PM
Replies: 3
Views: 870
Posted By rv7charlie
Always fun to speculate on English words that are...

Always fun to speculate on English words that are strung together and no longer have English meaning (as in FAA docs).

The quote does say, 'combination of'...

So, turbine+complex? Turbine alone?...
Forum: Electrical Systems 06-28-2018, 09:49 PM
Replies: 20
Views: 1,801
Posted By rv7charlie
Look for a mid 90's Suzuki Samurai/Swift, Geo...

Look for a mid 90's Suzuki Samurai/Swift, Geo Metro/Tracker. Here's one example at 55...
Forum: Glass Cockpit 06-28-2018, 04:45 PM
Replies: 30
Views: 2,463
Posted By rv7charlie
Hey Rusty, I kinda hinted at this in my earlier...

Hey Rusty,

I kinda hinted at this in my earlier reply; here are a few more details.

If all you're doing is VFR and mostly local flying, with no real need for elaborate flight planning features, an...
Forum: RV General Discussion/News 06-28-2018, 10:16 AM
Replies: 44
Views: 4,353
Posted By rv7charlie
A thought from the scrounger gallery. If you're...

A thought from the scrounger gallery. If you're going to do heat shields as Dan mentions, you can use stainless instead of aluminum. Really thin stainless doesn't weigh much (if any) more than...
Forum: VAF Classifieds (posts in here deleted after 30 days) 06-27-2018, 08:11 PM
Replies: 37
Views: 1,899
Posted By rv7charlie
Mine did too. Looks great.

Mine did too. Looks great.
Forum: RV General Discussion/News 06-26-2018, 05:55 PM
Replies: 43
Views: 2,509
Posted By rv7charlie
It really is difficult to troubleshoot over the...

It really is difficult to troubleshoot over the internet, and after a bunch of back & forth, sometimes it's hard to remember the original symptoms. :-)

quote from the 1st post in the...
Forum: Traditional Aircraft Engines 06-26-2018, 10:04 AM
Replies: 9
Views: 1,155
Posted By rv7charlie
Hans, A lot of us here in the USA are running 91...

Hans,

A lot of us here in the USA are running 91 octane (US rating system for car gas) ethanol-free car gas in the low to medium compression 7-1 to 8.5-1) Lycs. I'd be a little uncomfortable with...
Forum: RV General Discussion/News 06-26-2018, 09:09 AM
Replies: 43
Views: 2,509
Posted By rv7charlie
None of us can see/hear what you do. But low...

None of us can see/hear what you do. But low starter voltage will present somewhat different symptoms from a bad switch. If it's the switch causing the problem, the start contactor will either be...
Forum: RV-12 06-25-2018, 10:38 PM
Replies: 16
Views: 2,909
Posted By rv7charlie
https://www.por15.com/POR-15-Fuel-Tank-Sealer Did...

https://www.por15.com/POR-15-Fuel-Tank-Sealer

Did you read the info on it? Might be a very good product, but it's effectively a 'slosh' - applied sealant for old corroded tanks. Sloshing sealants...
Forum: RV General Discussion/News 06-25-2018, 09:15 PM
Replies: 11
Views: 616
Posted By rv7charlie
After hearing stories about canopy fitment...

After hearing stories about canopy fitment problems with unriveted forward skin, I found some little flat head metric screws & nuts that fit the -3 rivet holes. I screwed down the line next to the...
Forum: RV General Discussion/News 06-25-2018, 04:24 PM
Replies: 43
Views: 2,509
Posted By rv7charlie
KADriver, That problem should manifest...

KADriver,

That problem should manifest noticeably different symptoms, if you know what you're seeing and hearing. If the start contacts of the ignition switch are flaky and dropping out, you should...
Forum: VAF Classifieds (posts in here deleted after 30 days) 06-25-2018, 08:42 AM
Replies: 4
Views: 709
Posted By rv7charlie
For a........?

For a........?
Forum: RV General Discussion/News 06-25-2018, 08:31 AM
Replies: 14
Views: 647
Posted By rv7charlie
If the nut you used will fit on the gascolator,...

If the nut you used will fit on the gascolator, you apparently have a defective pump, or a mis-numbered pump.
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