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Search: Posts Made By: hgerhardt
Forum: Interiors 08-03-2020, 03:28 PM
Replies: 12
Views: 789
Posted By hgerhardt
I used Nomex felt...

I used Nomex felt (https://www.amazon.com/Meta-Aramid-Nomex-Sublimation-Felt-12/dp/B07KPP86P5?th=1), 1/2" thick, as the backing to attach the trim fabric to. It's stiff enough to support itself and...
Forum: RV-14 07-30-2020, 04:17 PM
Replies: 79
Views: 11,116
Posted By hgerhardt
The 2nd video shows detail of the new exhaust...

The 2nd video shows detail of the new exhaust overlaid on the old.
Forum: Autopilots 07-28-2020, 06:16 PM
Replies: 9
Views: 617
Posted By hgerhardt
Maybe a better question is, can a G5 interface...

Maybe a better question is, can a G5 interface with the old TruTrak GX Pilot head which would then drive the TT servos.
Forum: RV-14 07-24-2020, 02:48 PM
Replies: 79
Views: 11,116
Posted By hgerhardt
Here's a pic from a Van's email...

Here's a pic from a Van's email today:

https://mcusercontent.com/c57be1bb2d5168013c825b8d1/images/3e445cf9-66ec-4644-8264-c73c840ac4db.jpg
Forum: RV Ongoing Maintenance Issues 07-21-2020, 04:22 PM
Replies: 22
Views: 1,711
Posted By hgerhardt
I'll take next one after that for $29.00.

I'll take next one after that for $29.00.
Forum: Traditional Aircraft Engines 07-19-2020, 12:19 AM
Replies: 19
Views: 1,129
Posted By hgerhardt
This subject comes up fairly often here:...

This subject comes up fairly often here: https://vansairforce.com/community/showpost.php?p=1185599&postcount=3
Forum: Electronic Ignition Systems 07-18-2020, 01:08 PM
Replies: 3
Views: 286
Posted By hgerhardt
I hope he realizes that a 4-cylinder 4-stroke...

I hope he realizes that a 4-cylinder 4-stroke engine fires every 180 crankshaft degrees, which means that to get the other coil to fire, you need to rock the crankshaft at 180 deg from TDC #1 cyl.
Forum: Electronic Ignition Systems 07-13-2020, 04:34 PM
Replies: 6
Views: 468
Posted By hgerhardt
You have to install an op-amp. A quick search...

You have to install an op-amp. A quick search gets this: https://vansairforce.com/community/showthread.php?t=119508&highlight=op-amp
Forum: RV Ongoing Maintenance Issues 07-11-2020, 08:57 PM
Replies: 16
Views: 6,301
Posted By hgerhardt
You're welcome! Also, I'll put this out there...

You're welcome!

Also, I'll put this out there for general knowledge: if you ever get a sticky solenoid away from home base, use a screwdriver or whatever to manually pull/pry the pinion gear into...
Forum: RV Ongoing Maintenance Issues 07-11-2020, 06:12 PM
Replies: 16
Views: 6,301
Posted By hgerhardt
Pull the pinion gear forward into the ring gear...

Pull the pinion gear forward into the ring gear which causes the fork to move aft which will give you more clearance for assembly.
Forum: RV-6/6A 07-09-2020, 12:28 PM
Replies: 17
Views: 2,376
Posted By hgerhardt
Really??? SW is that limited? I can do anything I...

Really??? SW is that limited? I can do anything I want with "dumb" solids in NX with Direct Modeling tools. Same with CATIA I'm pretty sure.
Forum: My RV Build Project 07-09-2020, 11:53 AM
Replies: 106
Views: 24,842
Posted By hgerhardt
Not only that, the new trim bracket will...

Not only that, the new trim bracket will interfere with the seat cushion. The thigh bolsters sit on top of the spar and extend forward an inch or so. At least mine do, and even if yours are shorter...
Forum: RV General Discussion/News 07-06-2020, 08:28 PM
Replies: 9
Views: 1,581
Posted By hgerhardt
Flew "around the block" on July 4th from Redondo...

Flew "around the block" on July 4th from Redondo Beach to Huntington Beach and once again all the beaches completely empty. What a strange sight.
Forum: RV General Discussion/News 07-04-2020, 09:18 AM
Replies: 7
Views: 891
Posted By hgerhardt
FYI Koger is having a $25 off sale in the spirit...

FYI Koger is having a $25 off sale in the spirit of OSH right now. I just ordered a Superslider for my -6.
Forum: RV-6/6A 06-29-2020, 03:38 PM
Replies: 17
Views: 2,376
Posted By hgerhardt
Nice find! There's a guy who posted here years...

Nice find!

There's a guy who posted here years ago with a -7 CAD model which he was giving away for free. This one is much more detailed.
Forum: Fuel Injection Systems 06-26-2020, 09:32 PM
Replies: 5
Views: 682
Posted By hgerhardt
This just came up last month:...

This just came up last month: http://www.vansairforce.com/community/showthread.php?t=182807
Forum: RV-12/RV-12iS 06-26-2020, 05:32 PM
Replies: 18
Views: 1,489
Posted By hgerhardt
Give us some more information: is your airplane...

Give us some more information: is your airplane fuel injected? Does it have Kavlico sensors? (see pic below) If so, do a search on this forum. I think one of the failure modes is the red X....
Forum: Virtual Hangar 06-21-2020, 08:48 PM
Replies: 25
Views: 19,450
Posted By hgerhardt
You need to search "N13PL" and you'll find:...

You need to search "N13PL" and you'll find: https://flightaware.com/resources/registration/N13PL
Forum: RV General Discussion/News 06-21-2020, 10:50 AM
Replies: 8
Views: 1,019
Posted By hgerhardt
You mean this one?...

You mean this one? https://www.summitracing.com/parts/sum-227203 It actually has a 65mm bore.
Forum: Glass Cockpit 06-18-2020, 08:44 AM
Replies: 7
Views: 751
Posted By hgerhardt
cirrusreports.com works well too.

cirrusreports.com works well too.
Forum: Glass Cockpit 06-16-2020, 04:05 PM
Replies: 59
Views: 7,426
Posted By hgerhardt
8.71 updated fine for me. But, one thing is...

8.71 updated fine for me.
But, one thing is different now: with earlier releases, upon startup, system would boot up with transponder in 'GND' mode and automatically go to 'ALT' once airborne. Now,...
Forum: Tools 06-15-2020, 10:57 PM
Replies: 12
Views: 1,034
Posted By hgerhardt
Wood bandsaw speed is fine for aluminum provided...

Wood bandsaw speed is fine for aluminum provided you have a compatible blade. Slower speed is only needed for harder metals like steel.

Some of those 14" Rockwell/Deltas have a gear reduction...
Forum: RV General Discussion/News 06-14-2020, 04:34 PM
Replies: 18
Views: 1,810
Posted By hgerhardt
Installed and tested my new Matco 7" pneumatic...

Installed and tested my new Matco 7" pneumatic tailwheel. SO nice to not feel like my fillings are rattling out on taxi! And, it even fits my stock Van's tailwheel fork (I do have an ancient...
Forum: Glass Cockpit 06-11-2020, 09:13 PM
Replies: 59
Views: 7,426
Posted By hgerhardt
Installed 8.71 in my GDU 460/GSU 73/GTX 23ES...

Installed 8.71 in my GDU 460/GSU 73/GTX 23ES system today and all seems to work. The GDL 39 took the longest to update but did complete.
Forum: RV General Discussion/News 06-11-2020, 09:03 PM
Replies: 46
Views: 4,162
Posted By hgerhardt
If you DO decide that, I could use the cockpit...

If you DO decide that, I could use the cockpit from the firewall to the baggage bulkhead with canopy. Want to build a ground-based air conditioning demonstrator/test bed.
Forum: RV-10 05-30-2020, 08:41 PM
Replies: 38
Views: 3,943
Posted By hgerhardt
Consider this: I used a ton of Click Bonds in my...

Consider this: I used a ton of Click Bonds in my -6 and every condition inspection I have at least one pop off and have to re-epoxy it on. They're good if what they're bonded to is stiff and rigid....
Forum: Traditional Aircraft Engines 05-29-2020, 01:10 PM
Replies: 77
Views: 14,636
Posted By hgerhardt
"You don't have a proven product until you have...

"You don't have a proven product until you have 500 units installed in 500 homebuilts by 500 amateurs."

So true, that.
Forum: RV General Discussion/News 05-27-2020, 06:38 PM
Replies: 30
Views: 3,521
Posted By hgerhardt
Finally got around to checking my pressure after...

Finally got around to checking my pressure after hot shutdown and started with 29.0 PSI and about 2 mins later went up to 29.5 and then slowly decayed to about 25 PSI 15 min later. My...
Forum: Glass Cockpit 05-21-2020, 09:36 PM
Replies: 22
Views: 3,152
Posted By hgerhardt
Reading comprehension?

Go back and look at post 7 (http://www.vansairforce.com/community/showpost.php?p=1431148&postcount=7) in this thread. That document has Kavlico part numbers. And your link is the old style that's...
Forum: RV General Discussion/News 05-15-2020, 06:51 PM
Replies: 21
Views: 2,450
Posted By hgerhardt
I opened your links and right-clicked on each...

I opened your links and right-clicked on each photo and selected "copy image location". Took that and used the standard ... with the info pasted between. But what it took to make it work was delete...
Forum: RV General Discussion/News 05-15-2020, 11:21 AM
Replies: 21
Views: 2,450
Posted By hgerhardt
https://lh3.googleusercontent.com/pw/ACtC-3dzZ9EgT...

https://lh3.googleusercontent.com/pw/ACtC-3dzZ9EgTG1YEq9Qdld9e8ZGNWGsQ6WcmAO1_3DymOAHRCOFldb0mo4bM7bt3xHneElYmP_RD4LFlRAiG2tCrx6mRz2LutLQtVHsV6X8kgEhtUjs63OuFoOXtn0umOcl46DSUpyVqmd0ikeJRI_dLBk5=w900-h...
Forum: Fiberglass 05-09-2020, 04:39 PM
Replies: 4
Views: 755
Posted By hgerhardt
I use the same type 1/4" nylon tubing...

I use the same type 1/4" nylon tubing (https://www.amazon.com/Tailonz-Pneumatic-Meters-Tubing-Transfer/dp/B07R2F97T9/ref=sr_1_3?dchild=1&keywords=nylon+tubing+1%2F4%22&qid=1589049693&sr=8-3) as Van's...
Forum: RV General Discussion/News 05-09-2020, 04:27 PM
Replies: 30
Views: 3,521
Posted By hgerhardt
Looking at the datasheet ...

Looking at the datasheet (http://cdn1.kavlico.com/downloads/datasheets/P4055_Kavlico_Pressure_Data_Sheet_(US).pdf)for the P4055-50G (what we're using for FI fuel pressure application), they're rated...
Forum: RV General Discussion/News 05-07-2020, 03:21 PM
Replies: 30
Views: 3,521
Posted By hgerhardt
Kavlico reliability poll

Rather than muddying up the other recent Kavlico posts, It would be nice to get a better picture of the failure rate of these sensors.

IF YOU HAD A FAILURE please post:

Purchase date of the sensor...
Forum: RV Ongoing Maintenance Issues 05-07-2020, 02:55 PM
Replies: 3
Views: 529
Posted By hgerhardt
All 3 of those are Kavlicos. If you look hard...

All 3 of those are Kavlicos. If you look hard enough you'll see stamped part numbers on the...
Forum: RV General Discussion/News 05-02-2020, 12:11 PM
Replies: 1,536
Views: 366,360
Posted By hgerhardt
I know of a frontline supersonic fighter which...

I know of a frontline supersonic fighter which uses VHB tape to hold composite trailing edge caps in place.
Forum: RV Ongoing Maintenance Issues 05-02-2020, 12:07 PM
Replies: 85
Views: 36,982
Posted By hgerhardt
Mine's 15+ years old and hasn't shrunk enough to...

Mine's 15+ years old and hasn't shrunk enough to tell yet. I clean it every 5 years or so. K&N's work better with some dirt on them.
Forum: RV General Discussion/News 05-01-2020, 08:50 PM
Replies: 18
Views: 1,146
Posted By hgerhardt
Paid $3.29 in Santa Paula, CA last Tuesday....

Paid $3.29 in Santa Paula, CA last Tuesday. That's about a buck less than a month ago. And $2.20 less than my home field, TOA.
Forum: RV-10 04-30-2020, 09:40 AM
Replies: 7
Views: 520
Posted By hgerhardt
Are you considering the "real" A/C ArcticAir ...

Are you considering the "real" A/C ArcticAir (http://www.arcticaircooler.com/product-p/rac-200-1-12d.htm)unit or the ice cube version (http://www.arcticaircooler.com/product-p/pac-30-1-12d.htm)?
Forum: RV Ongoing Maintenance Issues 04-30-2020, 08:42 AM
Replies: 7
Views: 909
Posted By hgerhardt
I had the same problem with my -6 a long time...

I had the same problem with my -6 a long time ago, and had heard (I think on MotorWeek) it's most likely caused by fuel deposits on the resistance wire causing the wiper to make inconsistent contact....
Forum: RV-10 04-29-2020, 11:05 PM
Replies: 60
Views: 6,765
Posted By hgerhardt
For my G3X installation, I bought my Kavlicos...

For my G3X installation, I bought my Kavlicos from Dynon because they were cheaper back in 2013. No idea how they compare today. They were identical parts.
Forum: RV-10 04-29-2020, 04:08 PM
Replies: 60
Views: 6,765
Posted By hgerhardt
Been discussed several times recently. Here's one...

Been discussed several times recently. Here's one thread:

http://www.vansairforce.com/community/showthread.php?t=150042&highlight=kavlico
Forum: Glass Cockpit 04-27-2020, 11:26 PM
Replies: 4
Views: 637
Posted By hgerhardt
Had a Kavlico oil pressure sensor on my 2003...

Had a Kavlico oil pressure sensor on my 2003 Silverado start reading substantially off-- although I can't remember if it was high or low. It had about 60k miles and 10 years on it at the time.
Forum: RV General Discussion/News 04-27-2020, 12:32 PM
Replies: 41
Views: 4,328
Posted By hgerhardt
Sure, you can use silicone-impregnated fiberglass...

Sure, you can use silicone-impregnated fiberglass sleeving from McMaster (https://www.mcmaster.com/silicone-coated-fiberglass-sleeving). I used this on my home-swaged steel-braided teflon hoses, but...
Forum: RV General Discussion/News 04-23-2020, 09:31 PM
Replies: 3
Views: 457
Posted By hgerhardt
Amazon has it too:...

Amazon has it too: https://www.amazon.com/Gates-23832-Air-Intake-Hose/dp/B000CRHKM2/
Forum: Traditional Aircraft Engines 04-20-2020, 07:19 PM
Replies: 6
Views: 1,022
Posted By hgerhardt
Never assume anything when it comes to machined...

Never assume anything when it comes to machined clearances. I've had several "reputable shops" make machining errors over the years. Either get a snap gauge and micrometer or Plastigage.
Forum: RV General Discussion/News 04-16-2020, 08:43 PM
Replies: 41
Views: 4,328
Posted By hgerhardt
Do you happen to have a photo of that...

Do you happen to have a photo of that installation? Would be interesting from an educational standpoint.
Forum: RV General Discussion/News 04-16-2020, 06:54 PM
Replies: 41
Views: 4,328
Posted By hgerhardt
Have a look at the -14 drawing here:...

Have a look at the -14 drawing here: https://www.vansaircraft.com/service-information-and-revisions/43-2/
Forum: RV General Discussion/News 04-16-2020, 06:29 PM
Replies: 41
Views: 4,328
Posted By hgerhardt
The way you have it looks like the hard lines on...

The way you have it looks like the hard lines on the rear of the engine would get in the way of maintenance, especially if you need to remove that ignition coil assy. You could use hard line up to...
Forum: Electrical Systems 04-09-2020, 05:03 PM
Replies: 20
Views: 1,981
Posted By hgerhardt
I wrote those instructions 12 years ago after I...

I wrote those instructions 12 years ago after I performed that mod on my own alternator (and then sent to Bob, who published it). That same alternator is still performing well after 800+ hours. One...
Forum: RV General Discussion/News 04-08-2020, 10:34 PM
Replies: 4
Views: 410
Posted By hgerhardt
The Lightspeed Ignition kit normally comes with a...

The Lightspeed Ignition kit normally comes with a mag cover... go call Klaus and get one.
Forum: RV General Discussion/News 03-31-2020, 02:10 PM
Replies: 27
Views: 7,521
Posted By hgerhardt
We know the -10 is a joy to fly and is a great...

We know the -10 is a joy to fly and is a great all-around airplane. But looking beyond performance and functionality, how do the -10 and SR22 compare in, well, niceness factors? A few random things...
Forum: RV Ongoing Maintenance Issues 03-31-2020, 10:39 AM
Replies: 11
Views: 1,167
Posted By hgerhardt
Which sensor do you have? VDO or Kavlico 3-wire?

Which sensor do you have? VDO or Kavlico 3-wire?
Forum: RV General Discussion/News 03-30-2020, 11:05 PM
Replies: 35
Views: 2,528
Posted By hgerhardt
Feel exactly the same way! I've used UG/NX for...

Feel exactly the same way! I've used UG/NX for about 20 years. For a couple years, we moved to CATIA V5 and then back to NX. Hated those years with CATIA.
Forum: Tools 03-30-2020, 10:59 PM
Replies: 14
Views: 1,771
Posted By hgerhardt
Mine is several years old and now has a hazy film...

Mine is several years old and now has a hazy film on the backside of the lens, which degrades the image. Need to spend some time with it to see if the lens is removable.
Forum: RV General Discussion/News 03-27-2020, 09:06 AM
Replies: 38
Views: 3,964
Posted By hgerhardt
It is not spring steel. The cover you see is...

It is not spring steel. The cover you see is stamped from mild steel. The dimple in the center is to locate a coil spring which holds down a bakelite disc which holds the port closed. This is...
Forum: RV General Discussion/News 03-26-2020, 03:28 PM
Replies: 38
Views: 3,964
Posted By hgerhardt
Dan, thanks for getting us to critically analyze...

Dan, thanks for getting us to critically analyze how the Lyc oil system works. I had assumed (wrongly) that the spring in the back of the filter works as a bypass to unseat the filter element. Once...
Forum: RV General Discussion/News 03-26-2020, 02:47 PM
Replies: 14
Views: 1,702
Posted By hgerhardt
I've had good success with 3dHubs...

I've had good success with 3dHubs (https://www.3dhubs.com/). Much of their machining capability comes via China, but quality is great and price is good too. Gotten several AC prototype parts from...
Forum: RV General Discussion/News 03-25-2020, 10:40 PM
Replies: 12
Views: 1,540
Posted By hgerhardt
The cardboard/centerpunch trick for sure, but...

The cardboard/centerpunch trick for sure, but also glass bead-blast them before painting. Paint adheres much better to a non-shiny surface.
Forum: RV General Discussion/News 03-22-2020, 10:38 PM
Replies: 30
Views: 2,779
Posted By hgerhardt
Flew ?around the block? from Torrance Beach to...

Flew ?around the block? from Torrance Beach to Huntington Beach and back. Overheard someone telling ATC ?glad to find some normalcy up here?. Amen brother.
Forum: RV Ongoing Maintenance Issues 03-21-2020, 11:54 AM
Replies: 22
Views: 5,147
Posted By hgerhardt
Notice the Kavlico part number stamped in the...

Notice the Kavlico part number stamped in the sensor (P4055-50G (http://cdn1.kavlico.com/downloads/datasheets/P4055_Kavlico_Pressure_Data_Sheets_(EU).pdf)). These are robust sensors; they're used by...
Forum: RV Ongoing Maintenance Issues 03-17-2020, 04:10 PM
Replies: 22
Views: 5,147
Posted By hgerhardt
These are Kavlico sensors, right? Odd that these...

These are Kavlico sensors, right? Odd that these failures are all from the southern hemisphere.

Here's a video from How it's Made showing how these sensors are produced. Pretty interesting!...
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