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Search: Posts Made By: hgerhardt
Forum: COMM Today, 10:53 AM
Replies: 16
Views: 510
Posted By hgerhardt
So hard to understand for a kid who grew up in...

So hard to understand for a kid who grew up in SoCal! A 'cold' day here is +40F...
Forum: COMM Yesterday, 07:30 PM
Replies: 16
Views: 510
Posted By hgerhardt
Paul, I always start the engine with headset OFF....

Paul, I always start the engine with headset OFF. If there's a mechanical problem in the engine, it is typically most pronounced during a cold start... so I'm actively listening to the engine for the...
Forum: Electronic Ignition Systems 11-04-2017, 01:17 PM
Replies: 13
Views: 930
Posted By hgerhardt
This is what BMW did with their first V12 in the...

This is what BMW did with their first V12 in the 80's. They even advertised it as having a "limp home mode" when running on 6 cylinders.

The question is, is less than 1/2 the horsepower enough to...
Forum: Electrical Systems 11-02-2017, 07:06 PM
Replies: 24
Views: 1,697
Posted By hgerhardt
Low self-discharge rate indeed. I have a '66 GTO...

Low self-discharge rate indeed. I have a '66 GTO with a trunk-mounted PC-925 which I keep parked behind the RV. Last Friday I finally found an excuse to drive it (last cruise of 2017) and after 7...
Forum: Electronic Ignition Systems 11-01-2017, 11:06 PM
Replies: 13
Views: 930
Posted By hgerhardt
I'm going by somewhat hazy recollection since I...

I'm going by somewhat hazy recollection since I last tuned it 15 years ago, but what I like is the extreme adjustability. There are tons of options just for idle, off-idle, accelerator pump tuning......
Forum: Electronic Ignition Systems 10-31-2017, 07:41 PM
Replies: 13
Views: 930
Posted By hgerhardt
No experience with airborne Motecs, but I've had...

No experience with airborne Motecs, but I've had an M48 in my '66 GTO for 19 years. Never had an issue with it.

Heinrich
Forum: COMM 10-27-2017, 04:10 PM
Replies: 4
Views: 304
Posted By hgerhardt
My 240 was like that too, and my 245 is still...

My 240 was like that too, and my 245 is still like that. I do have a Bose A20 on the LH side and a Zulu 2 (now 3) on the RH side. My workaround is to turn up the volume sliders on the Zulu box to...
Forum: Fiberglass 10-23-2017, 06:59 PM
Replies: 15
Views: 1,831
Posted By hgerhardt
How about using today's technology and grow one?...

How about using today's technology and grow one? You can download SolidWorks from the EAA website for free, make an STL file from that and then have it 3-d printed via SLS...
Forum: Traditional Aircraft Engines 10-15-2017, 02:42 PM
Replies: 31
Views: 3,902
Posted By hgerhardt
And on the other hand, the IO-360 in my -6 was a...

And on the other hand, the IO-360 in my -6 was a 2000-hr runout "core" which had been stored in the crawl space under a house in the San Francisco area for at least 5 years before I bought it. I...
Forum: RV General Discussion/News 09-17-2017, 09:19 PM
Replies: 28
Views: 5,474
Posted By hgerhardt
We almost did that on takeoff at Roche Harbor,...

We almost did that on takeoff at Roche Harbor, San Juan Island, WA. No taxiway, so you have to back-taxi the whole runway and still a pair of deer wandered onto the runway right at rotation. We...
Forum: Glass Cockpit 09-06-2017, 11:39 PM
Replies: 194
Views: 54,518
Posted By hgerhardt
It already does this. See this post ...

It already does this. See this post (http://www.vansairforce.com/community/showthread.php?t=119508). Unknown is whether or not an op amp is required for the ElectroAir as Lightspeed needs. Although,...
Forum: RV General Discussion/News 09-03-2017, 10:33 PM
Replies: 5
Views: 358
Posted By hgerhardt
All the IP's are on Van's website available as...

All the IP's are on Van's website available as download in dxf.
Forum: Electrical Systems 08-29-2017, 11:55 PM
Replies: 42
Views: 2,804
Posted By hgerhardt
Actually, with no external source of power, the...

Actually, with no external source of power, the alternator is the only thing supplying power to its own field, so shorting the field via crowbar should instantly shut down the alternator. I say...
Forum: COMM 07-31-2017, 12:20 AM
Replies: 5
Views: 710
Posted By hgerhardt
Steve, thanks for that. Where in your -7A did you...

Steve, thanks for that. Where in your -7A did you install it? Cut a hole in the fwd instrument panel bulkhead? Or install it in the main panel with a grille?



Brian, was thinking along those lines...
Forum: COMM 07-29-2017, 06:21 PM
Replies: 5
Views: 710
Posted By hgerhardt
GMA 245 cabin speaker

Since Garmin's GMA 245 audio panel has a cockpit speaker output, anyone have suggestions as to what brand/model worked well for you (or not)? This is just to listen to ATIS before engine start, etc....
Forum: RV-6/6A 07-08-2017, 12:10 PM
Replies: 5
Views: 911
Posted By hgerhardt
Ballenger Motorsports...

Ballenger Motorsports (https://www.bmotorsports.com/shop/index.php/cPath/109?osCsid=r8e1urln3m9cgtqieeb54javs4) most likely has it.
Forum: Traditional Aircraft Engines 07-06-2017, 11:40 PM
Replies: 9
Views: 994
Posted By hgerhardt
Gates' spec ...

Gates' spec ...
Forum: Traditional Aircraft Engines 07-05-2017, 08:12 PM
Replies: 9
Views: 994
Posted By hgerhardt
power steering return hose

Power steering return hose. This hose (https://www.amazon.com/Gates-361970-Bulk-Power-Steering/dp/B000C2WHIY/ref=sr_1_1?ie=UTF8&qid=1499303206&sr=8-1&keywords=Gates+361970+Bulk+Power+Steering+Hose)...
Forum: Electronic Ignition Systems 07-05-2017, 07:25 PM
Replies: 33
Views: 7,630
Posted By hgerhardt
Maybe. At least Ford and Toyota have introduced...

Maybe. At least Ford and Toyota have introduced engines which have both port and direct injection on the same engine. Ford just recently and Toyota for a while now.
Forum: RV General Discussion/News 06-29-2017, 10:50 PM
Replies: 14
Views: 1,233
Posted By hgerhardt
If it's just cutting a narrow strip to length,...

If it's just cutting a narrow strip to length, use a cold chisel with a vise. If the chisel is reasonably sharp and you hold it at the right angle, it will make a clean cut. The part cut off will...
Forum: RV General Discussion/News 06-29-2017, 06:35 PM
Replies: 14
Views: 1,233
Posted By hgerhardt
Fiber cut-off wheel in an angle grinder...

Fiber cut-off wheel in an angle grinder (http://www.homedepot.com/p/Husky-Side-Mounted-Cut-Off-Tool-H4250/205805299), preferably pneumatic....
Forum: RV Building Tips/Techniques 06-22-2017, 11:08 PM
Replies: 16
Views: 1,556
Posted By hgerhardt
Semco guns are the only way to build tanks. Work...

Semco guns are the only way to build tanks. Work really well.
Forum: Fuel Injection Systems 06-18-2017, 01:42 PM
Replies: 145
Views: 38,072
Posted By hgerhardt
Assuming you're using a vacuum pump pad-driven...

Assuming you're using a vacuum pump pad-driven alternator: Since that splined shaft only rotates at 1.3x crankshaft RPM, you'll get very little output at idle/low RPM (belt-driven alternators...
Forum: RV-10 06-10-2017, 08:10 PM
Replies: 15
Views: 1,641
Posted By hgerhardt
I doubt there was much of ANY heat-load...

I doubt there was much of ANY heat-load engineering involved with small airplane AC... all the manufacturers use off-the-shelf aftermarket hot-rod-type automotive components and hope for the best....
Forum: RV-12 05-28-2017, 09:28 PM
Replies: 40
Views: 8,511
Posted By hgerhardt
Hey Joe, since you are installing the Arduino...

Hey Joe, since you are installing the Arduino into your RV, consider using an Arduino Nano (https://www.arduino.cc/en/Main/arduinoBoardNano). Much smaller and with the same functionality as an...
Forum: Traditional Aircraft Engines 05-18-2017, 11:00 PM
Replies: 10
Views: 2,177
Posted By hgerhardt
The XO-360-A1A has a front-mount governor? Are...

The XO-360-A1A has a front-mount governor? Are you certain? The non-X-A1A has it in the rear, I'm fairly certain.
Forum: Traditional Aircraft Engines 05-08-2017, 07:42 PM
Replies: 10
Views: 2,177
Posted By hgerhardt
I'd think if you had a complete factory FI setup...

I'd think if you had a complete factory FI setup to sell, including the horiz sump and intake tubes, that would be a desirable package for someone. And, that way you can get that aftermarket cold-air...
Forum: Traditional Aircraft Engines 04-19-2017, 07:02 PM
Replies: 9
Views: 1,483
Posted By hgerhardt
It's probably a sticky solenoid on the starter....

It's probably a sticky solenoid on the starter. I've had 2 now. It's a $20 part. See this: http://www.vansairforce.com/community/showthread.php?t=135453

Also, 6 ga seems pretty wimpy for power for a...
Forum: RV-6/6A 03-21-2017, 06:30 PM
Replies: 32
Views: 9,231
Posted By hgerhardt
Gary, after all that welding on the gear sockets,...

Gary, after all that welding on the gear sockets, do the gear legs still slide into the holes?

Heinrich
Forum: Electrical Systems 02-25-2017, 03:48 PM
Replies: 4
Views: 947
Posted By hgerhardt
Find someone with a lathe and turn a pair of...

Find someone with a lathe and turn a pair of spacers out of aluminum, since the pulley is alum too. That way, they will fit the shaft perfectly and no worries about balance. Plus, you could fine-tune...
Forum: RV General Discussion/News 02-18-2017, 03:42 PM
Replies: 14
Views: 1,883
Posted By hgerhardt
Tape measures are in fractions and for most...

Tape measures are in fractions and for most measurements on an RV, that's the preferred tool to use.
Forum: RV-12 02-11-2017, 07:18 PM
Replies: 2
Views: 1,483
Posted By hgerhardt
https://www.bmotorsports.com/shop/product_info.php...

https://www.bmotorsports.com/shop/product_info.php/cPath/109_130_132/products_id/2219?osCsid=el9c6lcch19vot436k2g253ea1

These guys have an awesome collection of connectors and pins. As for tools, I...
Forum: RV General Discussion/News 02-03-2017, 06:20 PM
Replies: 22
Views: 5,821
Posted By hgerhardt
Looks awesome, John! Reminds me of our F-20...

Looks awesome, John! Reminds me of our F-20 Tigersharks which were painted BMW code 151, Ascot Gray, which happened to be the color of the F-20 program VP's BMW at the time. I used the Ascot Gray,...
Forum: RV-6/6A 01-27-2017, 06:57 PM
Replies: 3
Views: 1,536
Posted By hgerhardt
I did exactly that. But if I was doing it today,...

I did exactly that. But if I was doing it today, I'd just get a -7 200HP cowl and toss the -6 cowl in the trash.
There's interference with #1-2 cylinders and also intake tube for #2 in the lower...
Forum: RV-10 01-27-2017, 12:07 PM
Replies: 13
Views: 3,138
Posted By hgerhardt
Van's used to sell McCauley governors before they...

Van's used to sell McCauley governors before they switched to Jihostroj, so when I started FF, I bought one of Van's McCauleys. It's worked flawlessly for 700 hours now. It maintains very tight...
Forum: RV General Discussion/News 01-25-2017, 11:38 PM
Replies: 11
Views: 2,237
Posted By hgerhardt
Coleman fuel

Coleman camping fuel works well for dissolving paraffin. Also works well for cleaning your belly without dissolving the paint. And it's milder than acetone, MEK, lacquer thinner,...
Forum: RV General Discussion/News 01-15-2017, 06:09 PM
Replies: 12
Views: 2,382
Posted By hgerhardt
It's most likely the cheap offshore-sourced...

It's most likely the cheap offshore-sourced solenoid that Skytec supplied with the starter. Just go get a new 2000 Ford Crown Vic solenoid and replace it. You can change out the solenoid with the...
Forum: RV-7/7A 01-09-2017, 04:35 PM
Replies: 7
Views: 3,214
Posted By hgerhardt
Why don't you just download the .dxf from Van's...

Why don't you just download the .dxf from Van's and extrude it into a 3-d solid model in SolidWorks? You know you can open a dxf in SW...
Forum: RV General Discussion/News 01-02-2017, 04:16 PM
Replies: 19
Views: 4,010
Posted By hgerhardt
My favorite solvent for removing adhesive residue...

My favorite solvent for removing adhesive residue is Coleman fuel (https://en.wikipedia.org/wiki/Coleman_fuel). It typically doesn't dissolve or soften the surface you're trying to clean, unlike...
Forum: Photography 01-01-2017, 02:58 PM
Replies: 11
Views: 6,229
Posted By hgerhardt
Good to know! I was wondering how to replace...

Good to know! I was wondering how to replace...
Forum: Electronic Ignition Systems 12-28-2016, 10:59 PM
Replies: 2
Views: 1,328
Posted By hgerhardt
In case you're installing a G3X, remember that...

In case you're installing a G3X, remember that you can display ignition timing directly on the engine page. In fact, Lightspeed just released an adapter ...
Forum: RV General Discussion/News 12-15-2016, 10:51 PM
Replies: 38
Views: 7,391
Posted By hgerhardt
That's what I used to think too. But for me, a...

That's what I used to think too. But for me, a small meal before is better than an empty stomach.

Of course, being PIC is still the best remedy!
Forum: RV-14 12-12-2016, 06:45 PM
Replies: 0
Views: 1,713
Posted By hgerhardt
Real Continental vs Lycoming

So as not to derail that other C vs L thread, I'll ask the same question:

Why not a "real" Continental (6-cylinder IO-360) in place of the Lyc IO-390/360-A-series? They have similar weights and...
Forum: RV General Discussion/News 12-09-2016, 09:07 PM
Replies: 7
Views: 1,859
Posted By hgerhardt
Only thing about UDD is a fairly ridiculous...

Only thing about UDD is a fairly ridiculous rental car rate. They have a private company in there that charged us around $85/day.
Forum: RV General Discussion/News 12-04-2016, 01:57 PM
Replies: 22
Views: 4,275
Posted By hgerhardt
Sounds like you connected the jump start battery...

Sounds like you connected the jump start battery backwards. The clue was the 60A breaker popping without the engine running. That also explains the little diode burning up.

I'd suspect the regulator...
Forum: California 11-24-2016, 01:39 PM
Replies: 3
Views: 864
Posted By hgerhardt
A year ago, Monterey Jet Center charged us...

A year ago, Monterey Jet Center charged us $10/day for overnight parking with no other fees and they have 5 crew cars available.
Forum: RV General Discussion/News 10-25-2016, 06:45 PM
Replies: 20
Views: 4,639
Posted By hgerhardt
http://www.vansairforce.com/community/showthread.p...

http://www.vansairforce.com/community/showthread.php?t=143028
Forum: RV General Discussion/News 10-24-2016, 05:36 PM
Replies: 20
Views: 4,639
Posted By hgerhardt
Well, Gary, there's your perfect...

Well, Gary, there's your perfect opportunity/excuse to get SolidWorks for free from EAA and learn how to use it!...
Forum: RV General Discussion/News 10-16-2016, 03:55 PM
Replies: 31
Views: 7,695
Posted By hgerhardt
My dual-LSE II setup would kick back once in a...

My dual-LSE II setup would kick back once in a while too, so I modified my routine to start cranking with ignition off until prop swings 1/2 a revolution and then turn on both ignitions. That works...
Forum: Traditional Aircraft Engines 10-08-2016, 11:41 AM
Replies: 7
Views: 2,690
Posted By hgerhardt
Doesn't the 2nd prototype RV-10 have an IO-360...

Doesn't the 2nd prototype RV-10 have an IO-360 Conti installed? Might be able to leverage what Van's learned in the installation process if someone wanted to go down that alley (I mean for...
Forum: Traditional Aircraft Engines 10-08-2016, 11:28 AM
Replies: 6
Views: 2,478
Posted By hgerhardt
That cylinder wall looks outstanding. That's all...

That cylinder wall looks outstanding. That's all crosshatch from the honing process.
Forum: Glass Cockpit 10-06-2016, 02:21 PM
Replies: 17
Views: 4,066
Posted By hgerhardt
Add AGL height data field Woo-hoo! I asked about...

Add AGL height data field

Woo-hoo! I asked about that several years ago. That was one feature my old BMA EFIS-1 had that I really missed. Thanks.
Forum: RV General Discussion/News 10-05-2016, 10:00 PM
Replies: 22
Views: 5,821
Posted By hgerhardt
Yes; thanks. My hangar neighbor and I built a...

Yes; thanks. My hangar neighbor and I built a paint booth in his hangar using a 240V axial fan he got on ebay.

Also, find the model year and paint code (google) of the car you're thinking of. Not...
Forum: RV General Discussion/News 10-05-2016, 07:10 PM
Replies: 22
Views: 5,821
Posted By hgerhardt
John, any automotive body/paint supply store will...

John, any automotive body/paint supply store will mix the color for you based on formula. And, you can choose what type and brand of paint (single stage, 2 stage, etc).

Virtually all automotive...
Forum: RV General Discussion/News 09-18-2016, 02:11 PM
Replies: 17
Views: 2,492
Posted By hgerhardt
Spark plug threads. SkyTec starter (all the...

Spark plug threads.
SkyTec starter (all the hardware holding it together + solenoid terminal studs).
Forum: RV-6/6A 09-10-2016, 02:38 PM
Replies: 20
Views: 3,087
Posted By hgerhardt
Not anymore. It's not as easily installed, but...

Not anymore. It's not as easily installed, but apparently doable. See this pdf (https://nebula.wsimg.com/068b324554a1c1662c54c864deb0b911?AccessKeyId=4731B31033AF66D2F3CD&disposition=0&alloworigin=1)...
Forum: RV-6/6A 09-10-2016, 12:23 PM
Replies: 20
Views: 3,087
Posted By hgerhardt
The Almost-a-14 Mod from AntiSplat Aero makes a...

The Almost-a-14 Mod from AntiSplat Aero makes a big difference.
Forum: ADS-B 08-31-2016, 05:58 PM
Replies: 22
Views: 5,754
Posted By hgerhardt
Same thing about 2weeks ago off the coast of San...

Same thing about 2weeks ago off the coast of San Pedro. ADSB showing lots of yellow in clear conditions.
Forum: Electrical Systems 08-29-2016, 11:01 PM
Replies: 114
Views: 22,021
Posted By hgerhardt
Exactly! And that's the problem with this poll....

Exactly! And that's the problem with this poll. If people would just (carefully) take apart their alternators and diagnose what actually went wrong before returning them, that would be a nice benefit...
Forum: Electrical Systems 08-27-2016, 11:11 PM
Replies: 114
Views: 22,021
Posted By hgerhardt
It seems to me that most of us on this board look...

It seems to me that most of us on this board look at alternators as a monolithic entity, when really they are an assembly of fairly simple parts.

Plane Power and B&C both start out as Denso...
Forum: RV Ongoing Maintenance Issues 06-07-2016, 07:16 PM
Replies: 30
Views: 9,033
Posted By hgerhardt
And you can also just modify the internal...

And you can also just modify the internal regulator to make it runaway-proof, the same way PP does it: http://www.aeroelectric.com/articles/Nipon-Denso_Alternator_Mod.pdf which I wrote 8 years ago...
Forum: Electrical Systems 06-04-2016, 03:14 PM
Replies: 45
Views: 9,038
Posted By hgerhardt
FWIW, all pre-2000 Honda FWD 4-cylinders run...

FWIW, all pre-2000 Honda FWD 4-cylinders run "backwards" compared to almost all other automotive engines and therefore have the correct cooling fans to work with our Lycomings.

I've been using a...
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