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Search: Posts Made By: mburch
Forum: VAF Classifieds (posts in here deleted after 30 days) 10-22-2021, 09:23 AM
Replies: 2
Views: 351
Posted By mburch
I'll take it, PM sent!

I'll take it, PM sent!
Forum: RV General Discussion/News 10-11-2021, 10:56 AM
Replies: 42
Views: 4,551
Posted By mburch
I did this on my RV-7. Not flying yet (how time...

I did this on my RV-7. Not flying yet (how time flies...) but it is plenty bright, weighs very little, and doesn't protrude much. Mounting it on top of the rudder and paying attention the shape of...
Forum: RV-7/7A 09-23-2021, 09:18 AM
Replies: 11
Views: 946
Posted By mburch
Yes, Scott has it exactly right here. In spots...

Yes, Scott has it exactly right here. In spots where the windscreen is too low, it's easy to shim outward and nobody but you will ever know, especially if you use a bead of your favorite sealant...
Forum: RV-8/8A 09-20-2021, 03:15 PM
Replies: 10
Views: 753
Posted By mburch
If you choose to leave your wing walk doublers a...

If you choose to leave your wing walk doublers a little long, do yourself a favor and consider if/how they will interfere with the nutplates on the inboard side to which the wing root fairing will...
Forum: Glass Cockpit 09-19-2021, 02:15 PM
Replies: 9
Views: 403
Posted By mburch
The installation manual is pretty clear about GPS...

The installation manual is pretty clear about GPS antenna requirements - see section 2.1.1.8 and the note at the beginning of section 8.1, in the current manual revision (rev AN...
Forum: Alternative Engines 09-07-2021, 02:47 PM
Replies: 37
Views: 5,075
Posted By mburch
Maybe not for an RV, but the little helicopter I...

Maybe not for an RV, but the little helicopter I fly sure would be great with something like this...
Forum: RV-15 08-26-2021, 09:12 AM
Replies: 20
Views: 3,829
Posted By mburch
They did say they are working on an RV-15 and an...

They did say they are working on an RV-15 and an RV-16... maybe we'll get a two-seater and a four-seater?
Forum: RV-7/7A 08-22-2021, 07:47 AM
Replies: 3
Views: 585
Posted By mburch
I agree with the above, the stock location for...

I agree with the above, the stock location for the fuel line is a bit too close to the starter contactor for my taste.

With the same engine/airframe combination as you've got, I ended up moving my...
Forum: RV Building Tips/Techniques 08-13-2021, 10:14 AM
Replies: 14
Views: 1,595
Posted By mburch
I think you could certainly do it this way if you...

I think you could certainly do it this way if you were installing the pitot plumbing prior to riveting on the bottom wing skin. In my case I was working through the access hole, so it would have been...
Forum: RV Building Tips/Techniques 08-12-2021, 08:05 AM
Replies: 21
Views: 2,073
Posted By mburch
I completely agree, but want to add one caveat:...

I completely agree, but want to add one caveat: before buying any bandsaw for your RV project, take a minute to check how easy it will be to get a blade for it. In my case I got a killer deal on a...
Forum: RV Building Tips/Techniques 08-09-2021, 07:26 AM
Replies: 14
Views: 1,595
Posted By mburch
Good question - I did have to be somewhat careful...

Good question - I did have to be somewhat careful when cutting the tubing to length, but the bracket that holds the fittings is pretty light-gauge which allowed me to tweak the geometry for a perfect...
Forum: RV Building Tips/Techniques 08-08-2021, 07:13 AM
Replies: 14
Views: 1,595
Posted By mburch
Hi Ed - Since I have a 7 instead of a 9, I don't...

Hi Ed - Since I have a 7 instead of a 9, I don't have the same flap bracket setup you do, so I can't fully picture what you're saying (been a long time since I sold my 9A!). But if you browse through...
Forum: RV Building Tips/Techniques 08-05-2021, 07:21 AM
Replies: 6
Views: 418
Posted By mburch
Maybe too obvious, but in these cases I usually...

Maybe too obvious, but in these cases I usually run a screw into the nutplate if I need to hold it tight to the skin while riveting.
Forum: COMM 08-04-2021, 07:12 AM
Replies: 4
Views: 467
Posted By mburch
Go to the setup menu and change the setting for...

Go to the setup menu and change the setting for COM ICS MUTE to OFF. See page 14 in the manual (https://static.garmin.com/pumac/190-01553-01_h.pdf).
Forum: Tools 08-02-2021, 06:55 AM
Replies: 6
Views: 1,780
Posted By mburch
Mine seems to not have this issue, maybe you got...

Mine seems to not have this issue, maybe you got a bad one? Anyway, mostly I'm picking up things like dropped nuts and bolts, for which it works great.
Forum: RV-15 08-01-2021, 12:44 PM
Replies: 32
Views: 6,126
Posted By mburch
Yes, I had that page open in another tab while I...

Yes, I had that page open in another tab while I was writing my suggestion, I'd just like to see it as a factory-sanctioned option similar to the low-wing step kit.
Forum: Tools 08-01-2021, 06:38 AM
Replies: 6
Views: 1,780
Posted By mburch
A cheap tool I can't live without

I can't remember where I got hip to this tool, but for certain tasks it's changed my life. Hartmann alligator forceps (https://en.wikipedia.org/wiki/Hartmann_alligator_forceps) are like tiny...
Forum: RV-15 08-01-2021, 06:09 AM
Replies: 32
Views: 6,126
Posted By mburch
Hi to any Van's folks reading this... I imagine...

Hi to any Van's folks reading this... I imagine you have the fundamental design details frozen already, but here are a few minor quality-of-life features I'd love to see:

1. Ability to look into the...
Forum: RV Building Tips/Techniques 07-31-2021, 09:15 PM
Replies: 14
Views: 1,595
Posted By mburch
The forward tube of the GAP 26 is pitot pressure,...

The forward tube of the GAP 26 is pitot pressure, aft is AOA pressure. I am using different-colored plastic tubing for each, so that shouldn't be an issue!
Forum: RV Building Tips/Techniques 07-31-2021, 09:00 PM
Replies: 14
Views: 1,595
Posted By mburch
GAP 26 plumbing connections

I've seen other builders post pictures of the various ways they handled the plumbing connections for their GAP 26 pitot tube / AOA probe, but I've never seen photos of this exact method, so I thought...
Forum: RV Building Tips/Techniques 07-31-2021, 07:34 AM
Replies: 4
Views: 431
Posted By mburch
If you're careful you can probably get away with...

If you're careful you can probably get away with this, but I'd personally put some kind of backing behind the spar. Remember that you can match-drill right into a piece of plywood or MDF and it will...
Forum: Glass Cockpit 07-31-2021, 06:29 AM
Replies: 12
Views: 805
Posted By mburch
I'd take another look... my G3X Touch system...

I'd take another look... my G3X Touch system records both normal acceleration and lateral acceleration.



Sounds you are looking for some kind of custom data acquisition system. This is...
Forum: RV-12/RV-12iS 07-28-2021, 03:52 PM
Replies: 7
Views: 1,195
Posted By mburch
Sounds like he followed the instructions... at...

Sounds like he followed the instructions... at least the plans for my RV-7 have you use electrical tape, plus lengths of split vinyl tubing to prevent chafing.
Forum: RV-15 07-27-2021, 07:06 AM
Replies: 29
Views: 4,496
Posted By mburch
I voted "pull" but what I actually want is more...

I voted "pull" but what I actually want is more nuanced than a binary choice. I love squeezing rivets and I don't really even mind driving rivets when I can get my hands on both sides to buck them...
Forum: RV General Discussion/News 07-17-2021, 08:26 AM
Replies: 2
Views: 453
Posted By mburch
Assuming you don't actually have to grind away...

Assuming you don't actually have to grind away (much of) the threaded barrel of the nutplate, I'd look at using MS21053 single-lug nutplates which you could angle away from the fuel tank rib.
Forum: RV General Discussion/News 07-17-2021, 06:48 AM
Replies: 23
Views: 2,392
Posted By mburch
In 2015 I paid closer to $3000 to have Tony...

In 2015 I paid closer to $3000 to have Tony Partain move my mostly-complete RV from Kansas to Oregon. Maybe I just got lucky and got the "empty truck heading west to pick up more QB kits anyway"...
Forum: RV General Discussion/News 07-07-2021, 06:51 PM
Replies: 5
Views: 945
Posted By mburch
This looks like a great idea. For those of us...

This looks like a great idea. For those of us without the ability to weld, what about machining a simple slot across the wide end, to accommodate a flat-blade screwdriver? Not as nice as your...
Forum: RV Building Tips/Techniques 07-05-2021, 08:29 PM
Replies: 3
Views: 1,279
Posted By mburch
Ten-foot drill bit

I followed the factory guidance (https://www.vansaircraft.com/faq-technical-builder-items/wing-wiring-routing-wires-in-the-wings/) for installing plastic wiring conduits in my wing ribs. Now that I'm...
Forum: Glass Cockpit 07-04-2021, 08:31 AM
Replies: 3
Views: 705
Posted By mburch
With only two wires and a shield, if a CAN bus is...

With only two wires and a shield, if a CAN bus is installed correctly initially there are only a few things that can go wrong. If a CAN wiring issue is suspected, there is a detailed step-by-step...
Forum: Tools 06-24-2021, 01:11 PM
Replies: 36
Views: 3,706
Posted By mburch
Milbar model 7W is what you want (or Snap-On...

Milbar model 7W is what you want (or Snap-On WTG8A if you want to spend even more).
Forum: Tools 06-24-2021, 10:34 AM
Replies: 36
Views: 3,706
Posted By mburch
Yes, that's what I was getting at... Milbar now...

Yes, that's what I was getting at... Milbar now has a model with one-hand locking.

This is a Snap-On video but I'm 99% sure the pliers shown here are actually made by Milbar:...
Forum: Tools 06-24-2021, 09:34 AM
Replies: 36
Views: 3,706
Posted By mburch
I have a Milbar pair and I love the reversing...

I have a Milbar pair and I love the reversing feature, but the locking mechanism is the same as any old pliers. I see now that newer Milbar units have a greatly improved locking feature. Oh no, this...
Forum: RV-7/7A 06-23-2021, 10:13 AM
Replies: 16
Views: 1,493
Posted By mburch
I was just about to comment the same thing but...

I was just about to comment the same thing but Larry beat me to it.
Forum: RV Building Tips/Techniques 06-21-2021, 08:19 AM
Replies: 5
Views: 898
Posted By mburch
I'm almost sure I ignored the plans and just...

I'm almost sure I ignored the plans and just found a hole location that I could make work! Lots of that kind of thing in this vintage of kit, where the locations of things in the FWF plans are more...
Forum: RV General Discussion/News 06-20-2021, 06:31 PM
Replies: 29
Views: 5,505
Posted By mburch
Technically, the wings and fuselage are now...

Technically, the wings and fuselage are now "connected"! ;)

http://www.rv7blog.com/images/20210620_testing1.jpg

http://www.rv7blog.com/images/20210620_testing2.jpg
Forum: RV Building Tips/Techniques 06-20-2021, 07:40 AM
Replies: 5
Views: 898
Posted By mburch
I have a throttle quadrant in my RV-7 so I tucked...

I have a throttle quadrant in my RV-7 so I tucked the alternate air control next to it. Left side of panel would have been a little easier but I didn't have...
Forum: RV-14 06-19-2021, 04:28 PM
Replies: 5
Views: 1,003
Posted By mburch
If you think your calibration curves are correct,...

If you think your calibration curves are correct, but just assigned to the wrong inputs, you may not need to drain your tanks or do any recalibration. First try this:

After you fix up your wiring,...
Forum: Glass Cockpit 06-04-2021, 09:21 AM
Replies: 16
Views: 1,600
Posted By mburch
There's plenty of room on the F-7112 top skin for...

There's plenty of room on the F-7112 top skin for multiple antennas, as long as you don't mount them too far forward: ...
Forum: RV Building Tips/Techniques 06-01-2021, 11:05 AM
Replies: 18
Views: 3,631
Posted By mburch
Congratulations, you have a bright future as a...

Congratulations, you have a bright future as a Prussian army commander. :)
Forum: RV Building Tips/Techniques 05-25-2021, 11:38 AM
Replies: 21
Views: 2,718
Posted By mburch
Specifically, FAR 45.29. This website has some...

Specifically, FAR 45.29. This website has some useful discussion: http://www.highergraphics.com/FAR45C/
Forum: RV General Discussion/News 05-25-2021, 09:51 AM
Replies: 56
Views: 10,719
Posted By mburch
Thanks Larry - and by the way I referred to your...

Thanks Larry - and by the way I referred to your Kitplanes article on the Sika process to figure it out!
Forum: RV General Discussion/News 05-25-2021, 09:50 AM
Replies: 56
Views: 10,719
Posted By mburch
Hi Kent - Along the longerons I used AACQ-4-x...

Hi Kent - Along the longerons I used AACQ-4-x rivets, spaced in between the existing rivet holes (no edge distance worries). Where the fairings attach to the fuselage skin only, the rivets are all...
Forum: RV General Discussion/News 05-24-2021, 09:37 PM
Replies: 56
Views: 10,719
Posted By mburch
It would certainly be doable - if I'm not...

It would certainly be doable - if I'm not mistaken, the factory RV-14A (N214VA) has an aluminum fairing strip around the base of the windshield.
Forum: RV General Discussion/News 05-21-2021, 11:37 AM
Replies: 56
Views: 10,719
Posted By mburch
Finished result

Full details here: ...
Forum: RV-12/RV-12iS 05-16-2021, 08:03 AM
Replies: 50
Views: 9,501
Posted By mburch
So the designer's intent is to have the fuel pump...

So the designer's intent is to have the fuel pump operating any time the engine is running, and the objection of some owners is that having the pump going while doing ground maintenance is annoying....
Forum: RV General Discussion/News 05-09-2021, 05:41 PM
Replies: 56
Views: 10,719
Posted By mburch
I added an extra screw hole on each side to...

I added an extra screw hole on each side to secure the top corner of the lower fairing, drilled the rivet holes in the longeron, and trimmed away the excess...
Forum: RV General Discussion/News 05-03-2021, 08:22 AM
Replies: 56
Views: 10,719
Posted By mburch
Thanks guys - I am holding off on the...

Thanks guys - I am holding off on the celebrations until I get it all finished, then it will be Miller Time.

My current plan is to add one more screw hole on each side to secure the aft edge of the...
Forum: RV General Discussion/News 05-01-2021, 10:59 AM
Replies: 56
Views: 10,719
Posted By mburch
I searched high and low for something with the...

I searched high and low for something with the right combination of stiffness and flexibility that I could use to mark a smooth curve to trim the top of the windscreen base fairing. I happened to...
Forum: RV-7/7A 05-01-2021, 06:09 AM
Replies: 19
Views: 2,919
Posted By mburch
It just so happens that's where I put mine as...

It just so happens that's where I put mine as well:

http://www.rv7blog.com/images/20201121_placards3.jpg
Forum: RV-7/7A 04-28-2021, 07:37 AM
Replies: 19
Views: 2,919
Posted By mburch
I have probably spent more time using the G5 than...

I have probably spent more time using the G5 than most; based on that experience, in my RV-7 slider I chose to put it to the left of the pilot's display, which is as close to the pilot's field of...
Forum: RV General Discussion/News 04-27-2021, 07:00 PM
Replies: 56
Views: 10,719
Posted By mburch
Yup, no different than the time a guy tried to...

Yup, no different than the time a guy tried to close my tip-up canopy for me and broke it. :mad:

I still have the option to trim more off of the rollbar cover, although I need to keep some amount of...
Forum: RV General Discussion/News 04-27-2021, 02:20 PM
Replies: 56
Views: 10,719
Posted By mburch
Good question Steve. I'm following in Andy's...

Good question Steve. I'm following in Andy's footsteps (https://vansairforce.net/community/showpost.php?p=810617&postcount=156) and using the same .040" thick material over the rollbar that he used....
Forum: RV-7/7A 04-27-2021, 08:53 AM
Replies: 16
Views: 2,236
Posted By mburch
Same here... lately it seems like every time I...

Same here... lately it seems like every time I hit a difficult patch in the construction of my RV-7, I discover that it's been addressed in the RV-14: either through improved design, improved plans,...
Forum: RV General Discussion/News 04-27-2021, 08:16 AM
Replies: 56
Views: 10,719
Posted By mburch
It's clecoed through the plexiglass into the...

It's clecoed through the plexiglass into the rollbar. I already had pilot holes drilled in the windscreen and rollbar, so I just reverse-match-drilled them into the new fairing (not too bad of a job...
Forum: RV General Discussion/News 04-25-2021, 07:27 PM
Replies: 56
Views: 10,719
Posted By mburch
Making progress... I turned a six-foot sheet of...

Making progress... I turned a six-foot sheet of 0.040" into a single-piece fairing for the top of the rollbar. I got as far as getting it fitted and the aft edge trimmed to final size, before I ran...
Forum: RV General Discussion/News 04-21-2021, 07:30 AM
Replies: 23
Views: 2,736
Posted By mburch
I know personally of an occasion where an RV was...

I know personally of an occasion where an RV was flagged by a passing FAA inspector for having an N-number font that was deemed "too thin". As I recall they were forced to apply new vinyl digits on...
Forum: RV Ongoing Maintenance Issues 04-17-2021, 11:30 AM
Replies: 6
Views: 1,290
Posted By mburch
What you want is a "bug nut": ...

What you want is a "bug nut": https://shop.vansaircraft.com/cgi-bin/shop.cgi?browse=controls&product=wire-nut
Forum: RV General Discussion/News 04-13-2021, 08:41 AM
Replies: 56
Views: 10,719
Posted By mburch
I should also point out that a three-piece...

I should also point out that a three-piece fairing is certainly possible: a mostly-straight piece across the middle, with a curved piece on each side. I recall that the RV-14A prototype was built...
Forum: RV General Discussion/News 04-13-2021, 07:53 AM
Replies: 56
Views: 10,719
Posted By mburch
It's certainly possible, but it would be way more...

It's certainly possible, but it would be way more work. It's not a matter of just doubling the size of the bending jig - you'd have to design a much more elaborate one entirely. Or if you were the...
Forum: RV General Discussion/News 04-12-2021, 06:44 PM
Replies: 56
Views: 10,719
Posted By mburch
Looks great Jeff. I assume you sealed it up with...

Looks great Jeff. I assume you sealed it up with proseal or similar?
Forum: RV General Discussion/News 04-12-2021, 10:45 AM
Replies: 56
Views: 10,719
Posted By mburch
From my website...

From my website (http://www.rv7blog.com/2021/04/10/aluminum-windscreen-fairing/):
Forum: RV General Discussion/News 04-11-2021, 08:15 AM
Replies: 56
Views: 10,719
Posted By mburch
Thanks Andy! Yes, the bending process is a little...

Thanks Andy! Yes, the bending process is a little bit of a workout. Adding a handle for more leverage helps, but of course then you have to be careful not to overcook it. I just went slow and it...
Forum: RV General Discussion/News 04-10-2021, 08:20 PM
Replies: 56
Views: 10,719
Posted By mburch
Good news, another builder provided me with a...

Good news, another builder provided me with a copy, which I have hosted here (http://www.rv7blog.com/files/rvator_0697_windscreen_fairing.pdf) for your viewing pleasure!
Forum: RV General Discussion/News 04-10-2021, 08:13 PM
Replies: 56
Views: 10,719
Posted By mburch
Good question. You need a sheet approximately...

Good question. You need a sheet approximately 3.5' x 1' for a single half - a little less than twice that to make two, if you nest them. If you had a quarter of a 4'x8' sheet, that would probably be...
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