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Search: Posts Made By: Lars
Forum: RV General Discussion/News Yesterday, 10:21 PM
Replies: 41
Views: 7,569
Posted By Lars
You are missing the point of this thread. This...

You are missing the point of this thread. This discussion is about main wheel tires, not nose wheel. 380-150 x 5 tires are substantially larger in diameter than typical 5.00 x 5 tires, and they are...
Forum: VAF Classifieds (posts in here deleted after 30 days) 08-03-2020, 10:24 PM
Replies: 1
Views: 203
Posted By Lars
SOLD: Telex TC200 intercom

I bought this for my primary flight training in 1992, back when it seemed that intercoms in training aircraft were a novelty. Guessing it was last used in 1998. Original box, I believe all parts,...
Forum: RV General Discussion/News 07-30-2020, 10:57 PM
Replies: 41
Views: 7,569
Posted By Lars
FWIW. I took the photo when I replaced my last...

FWIW. I took the photo when I replaced my last pair of Desser Aero Classic 5.00x5's with the first pair of Desser Aero Classic 380x150-5's a few years...
Forum: California 07-15-2020, 09:13 AM
Replies: 9
Views: 902
Posted By Lars
Congratulations, Frank!

Congratulations, Frank!
Forum: Glass Cockpit 07-06-2020, 10:50 PM
Replies: 6
Views: 1,251
Posted By Lars
static port accuracy

There is a true airspeed Excel spreadsheet calculator floating around out in the ether. The value is that dynamic (as opposed to test set) static system errors are identified. While your pitot/static...
Forum: Autopilots 06-28-2020, 11:44 PM
Replies: 14
Views: 1,773
Posted By Lars
Describe the failure. I repaired mine, after...

Describe the failure. I repaired mine, after being told it couldn't be fixed. It was a little fiddly but in my case, I got the required part (an RC servomotor) from Amazon for a few bucks.
Forum: Traditional Aircraft Engines 06-16-2020, 05:38 PM
Replies: 21
Views: 3,148
Posted By Lars
Paul, if you can?t find any other way to dispose...

Paul, if you can?t find any other way to dispose of them, I?ll gladly take one off your hands next time our paths cross. Hangar art...
Forum: Electrical Systems 06-15-2020, 03:41 PM
Replies: 15
Views: 1,432
Posted By Lars
What he said.

What he said.
Forum: Electrical Systems 06-15-2020, 03:40 PM
Replies: 15
Views: 1,432
Posted By Lars
True enough. But the BC410-H alternator in...

True enough. But the BC410-H alternator in question is not a permanent magnet alternator. Different animal.
Forum: RV-8/8A 06-15-2020, 03:36 PM
Replies: 9
Views: 1,086
Posted By Lars
To close this out...

Great advice, thank you. It turned out to be the solution. We had been working front to back. When we went the other way this morning we quickly realized we had a lot more trimming do do, which in...
Forum: Electrical Systems 06-15-2020, 09:05 AM
Replies: 15
Views: 1,432
Posted By Lars
Yes, I am enabling the backup field with a...

Yes, I am enabling the backup field with a switch, but strictly speaking it's unnecessary. See also Rick's reply. That enables the regulator but doesn't turn on the alternator.

B&C's architecture...
Forum: Electrical Systems 06-15-2020, 08:05 AM
Replies: 15
Views: 1,432
Posted By Lars
You don't need a field switch for the backup...

You don't need a field switch for the backup alternator, though their wiring diagram shows one. I installed the switch on my RV-7, my neighbor doesn't have one on his RV-14.

Installation...
Forum: RV-8/8A 06-14-2020, 10:34 PM
Replies: 9
Views: 1,086
Posted By Lars
We trimmed this thing minimally. Because of the...

We trimmed this thing minimally. Because of the severe taper at the back, small cuts shorten the canopy substantially. A little bit of trimming with the canopy in its natural (unclamped) state got...
Forum: RV-8/8A 06-13-2020, 09:57 AM
Replies: 9
Views: 1,086
Posted By Lars
RV-8 canopy bubble to frame fit

Hi all-

Helping a friend replace the canopy and windshield on his 2005 RV-8 due to unfortunate circumstances. He is not the original builder; the actual bubble on this aircraft was probably...
Forum: My RV Build Project 04-28-2020, 09:17 PM
Replies: 106
Views: 24,843
Posted By Lars
Something scary

How time flies (ha). That was over 10 years ago. More like 12. Glad to have Mark be the keeper of a very special RV-4.
Forum: My RV Build Project 04-23-2020, 10:24 PM
Replies: 106
Views: 24,843
Posted By Lars
James, the bones of that RV-6 are really nice. It...

James, the bones of that RV-6 are really nice. It won't be an RV-4, and as long as you don't ask it to be one, you won't be disappointed. I can assure you that it will be up to the challenge of being...
Forum: RV General Discussion/News 04-07-2020, 09:11 PM
Replies: 16
Views: 2,021
Posted By Lars
Thanks, Neal. That was a heckuva a dent. After...

Thanks, Neal. That was a heckuva a dent. After getting the tank off today and looking things over, I suspect that drilling off that outboard bottom skin is unavoidable if one wants to use solid...
Forum: RV General Discussion/News 04-07-2020, 08:33 AM
Replies: 16
Views: 2,021
Posted By Lars
A different angle on my original question

Leading edge skin and bent rib removal will probably commence today. I have lots of experience drilling out rivets, so not too concerned about that part.

For those who have done this, how did you...
Forum: RV General Discussion/News 04-06-2020, 02:27 PM
Replies: 16
Views: 2,021
Posted By Lars
Thanks, all. The skin is getting replaced, along...

Thanks, all. The skin is getting replaced, along with the damaged rib. The folks at Van?s think it can be done without having to drill off the outboard bottom skin, which is what I was hoping to...
Forum: RV General Discussion/News 04-05-2020, 07:23 PM
Replies: 16
Views: 2,021
Posted By Lars
Wing leading edge dent

Helped a good friend weigh his pride and joy almost-done RV-14A today. In the process, an error chain got clanking along. Rolled off the scales and an errant wing jack put a big dent in the left...
Forum: Safety 03-19-2020, 10:34 AM
Replies: 29
Views: 3,815
Posted By Lars
Parker 919B hose ("B" is important) is conductive...

Parker 919B hose ("B" is important) is conductive teflon with stainless overbraid. Compatible field-installable fittings are Parker 90 series; they are typically plated steel in a variety of...
Forum: California 03-06-2020, 09:53 PM
Replies: 48
Views: 8,670
Posted By Lars
Weather is looking dicey up this way too. Will...

Weather is looking dicey up this way too. Will check again in the AM, fingers crossed.
Forum: RV General Discussion/News 02-12-2020, 09:06 AM
Replies: 30
Views: 4,694
Posted By Lars
I rescued a friend yesterday with a small Harbor...

I rescued a friend yesterday with a small Harbor Freight aluminum floor jack, a hose clamp and a can of fix-a-flat. The goo inflated the tire and stopped the leak enough that he was able to get off...
Forum: RV General Discussion/News 02-06-2020, 10:25 AM
Replies: 10
Views: 1,058
Posted By Lars
I'd be leery about using one of those on an...

I'd be leery about using one of those on an aircraft. They are made by Pollak. I've been through 3 of them in about 100,000 miles on my truck. A typical failure mode is pulling from one tank and...
Forum: California 01-31-2020, 10:07 PM
Replies: 48
Views: 8,670
Posted By Lars
Will be there, assuming wx better than last year...

Will be there, assuming wx better than last year (or was it the year before, CRS moment). Email sent.
Forum: RV General Discussion/News 01-16-2020, 01:07 PM
Replies: 48
Views: 5,562
Posted By Lars
Lots of beautiful white sand there. Oh. wait...

Lots of beautiful white sand there. Oh. wait...
Forum: Autopilots 01-15-2020, 09:37 PM
Replies: 10
Views: 966
Posted By Lars
...for the win. Thanks for that tidbit! Helps me...

...for the win. Thanks for that tidbit! Helps me too :D
Forum: Autopilots 01-15-2020, 09:10 AM
Replies: 10
Views: 966
Posted By Lars
Another possibility would be to send the EX back...

Another possibility would be to send the EX back to GRT and have them install the optional serial ports, for a total of 6. That would simplify your wiring, since the serial port expander will consume...
Forum: RV-10 01-01-2020, 06:22 PM
Replies: 18
Views: 3,182
Posted By Lars
This is a simple option if you don't mind the...

This is a simple option if you don't mind the price:

http://www.cleavelandtool.com/RUDDER-TRIM-TAB/productinfo/9883/#.Xg1FeRdKjOQ
Forum: Alternative Engines 12-13-2019, 04:03 PM
Replies: 8
Views: 1,600
Posted By Lars
If you like to tinker...

I know someone who does, and things seem to be working pretty well. The carbon fiber intake manifold he fabricated is pretty cool, too ;)

Have to admit, his experience has softened my stance. Sound...
Forum: RV Friends Who Have Passed On 12-08-2019, 09:05 PM
Replies: 106
Views: 13,288
Posted By Lars
Tom, condolences from us at Team Light Aviation....

Tom, condolences from us at Team Light Aviation. Nothing can erase the loss of your beloved. It's a feeling you get used to, not one you get over. But support for you is broad, and deep.
Forum: RV Ongoing Maintenance Issues 12-03-2019, 08:15 AM
Replies: 31
Views: 6,437
Posted By Lars
Count me among those that think it looks hokey....

Count me among those that think it looks hokey. Etc. But in the end (and actually, it was the beginning since my RV-7 wasn't even flying yet) all the other solutions I was dreaming up seemed too...
Forum: GPS 12-02-2019, 10:48 PM
Replies: 9
Views: 989
Posted By Lars
If you ordered it as a standalone unit, it should...

If you ordered it as a standalone unit, it should be wired per the diagram on page 21 of the installation manual. Assuming GRT configured it correctly, the SafeFly should be ok. Configured that way,...
Forum: ADS-B 12-02-2019, 10:32 PM
Replies: 45
Views: 7,466
Posted By Lars
I contacted uAvionix and ForeFlight directly....

I contacted uAvionix and ForeFlight directly. Both confirmed that there is no position info in the Echo data stream. I had worked on an RV installation where the owner insisted that he was getting...
Forum: RV Ongoing Maintenance Issues 12-02-2019, 10:24 PM
Replies: 31
Views: 6,437
Posted By Lars
Adding to the chorus... When I was installing my...

Adding to the chorus... When I was installing my exhaust system about 10 years ago I saw numerous posts describing broken Vetterman style flattened tube hangers.

Stainless is good for being...
Forum: ADS-B 10-27-2019, 11:33 AM
Replies: 45
Views: 7,466
Posted By Lars
The Echo output doesn't include GPS position...

The Echo output doesn't include GPS position information, so the GPS position accuracy you are seeing in ForeFlight is coming from either the iPad internal GPS if you have a wifi+cellular version, or...
Forum: ADS-B 10-25-2019, 09:31 AM
Replies: 45
Views: 7,466
Posted By Lars
The Echo "sniffs" the transponder squawk code and...

The Echo "sniffs" the transponder squawk code and altitude information from the transponder output when the transponder is polled by radar and replies. Thus wireless. The Echo does require a...
Forum: RV General Discussion/News 10-14-2019, 10:46 PM
Replies: 52
Views: 11,484
Posted By Lars
How timely. Same here. I glassed on some wooden...

How timely. Same here. I glassed on some wooden stiffeners that were made from door molding, from a forum vendor. Same size tires, carefully balanced, tried Michelins, Dessers, blah blah. The shimmy...
Forum: GPS 10-13-2019, 10:19 AM
Replies: 7
Views: 1,584
Posted By Lars
Understand simple. As Mark described above, the...

Understand simple. As Mark described above, the SafeFly is only a position source. It can't feed the TruTrak directly. The position data has to be processed somehow; the WS can do that.

There is a...
Forum: GPS 10-12-2019, 10:24 AM
Replies: 7
Views: 1,584
Posted By Lars
What he said.. ^^^ too much to write when typing...

What he said.. ^^^ too much to write when typing on my teeny iPhone screen.

Adding a little bit of detail, if you want the SafeFly to supply information to the TruTrak, it needs to happen via an...
Forum: GPS 10-10-2019, 10:46 PM
Replies: 7
Views: 1,584
Posted By Lars
It'll work. Feed the GPS RS232 out line (don't...

It'll work. Feed the GPS RS232 out line (don't recall the pin on the SafeFly offhand) to both. Which GRT EFIS model do you have? It matters in terms of configuration of the SafeFly.
Forum: California 09-06-2019, 09:02 PM
Replies: 2
Views: 613
Posted By Lars
Me :) Already know the details ;)

Me :)

Already know the details ;)
Forum: RV General Discussion/News 09-05-2019, 10:30 PM
Replies: 31
Views: 4,376
Posted By Lars
Could be me writing that. First time I tried my...

Could be me writing that. First time I tried my new-to-me pulse oximeter (very cheap, as in free to me) at altitude, I was alarmed. A few deep breaths later, all well. Have had the same experience a...
Forum: Electrical Systems 08-27-2019, 01:04 PM
Replies: 154
Views: 22,808
Posted By Lars
Thanks for the info. I've witnessed two PP...

Thanks for the info. I've witnessed two PP alternator failures (both were pre-Hartzell models, as is mine), neither in my airplane fortunately. Not a connector getting flakey, something going TU and...
Forum: Electrical Systems 08-25-2019, 08:04 PM
Replies: 154
Views: 22,808
Posted By Lars
Regarding using one of these to replace a PP...

Regarding using one of these to replace a PP alternator... I have a lathe and can likely figure out mechanical mounting details, but curious about what else is required for the swap. PP alternators...
Forum: RV-3 07-09-2019, 10:25 PM
Replies: 137
Views: 156,061
Posted By Lars
Looks great in the photo, looked even better in...

Looks great in the photo, looked even better in person!
Forum: RV General Discussion/News 07-07-2019, 10:23 AM
Replies: 41
Views: 8,904
Posted By Lars
For what it's worth... My engine has the same...

For what it's worth... My engine has the same flow divider orientation. I was hoping I could find a better photo, but the one below gives the general idea. Several things have changed since it was...
Forum: RV-7/7A 06-16-2019, 08:33 AM
Replies: 13
Views: 2,757
Posted By Lars
Another possibility

Described in this thread: http://www.vansairforce.com/community/showthread.php?t=125262

This happened to me. Buss voltage was a consistent 14.0-14.2 volts for years. Started dropping erratically,...
Forum: Traditional Aircraft Engines 05-07-2019, 04:36 PM
Replies: 25
Views: 3,224
Posted By Lars
Steve, the OAT reading is on the left side of my...

Steve, the OAT reading is on the left side of my display- PFD side- upper center. 53?F.

Here?s a photo I took a few minutes ago. 1500? MSL, ~25 squared, about 40? LOP, OAT 68?F. I had been in level...
Forum: RV-7/7A 05-07-2019, 12:49 PM
Replies: 10
Views: 1,402
Posted By Lars
I've responded to a few Sika threads over the...

I've responded to a few Sika threads over the years, but I think my usual verbal arm-waving tends to confuse more than help. I used techniques similar to what others before me described, including no...
Forum: Traditional Aircraft Engines 05-07-2019, 12:39 PM
Replies: 25
Views: 3,224
Posted By Lars
Was thinking about this thread yesterday while...

Was thinking about this thread yesterday while flying around NorCal. Pic below was taken a couple of minutes or so after I leveled off, leaned out fully, etc. Eventually the highest CHT dropped to...
Forum: Traditional Aircraft Engines 05-06-2019, 11:25 PM
Replies: 25
Views: 3,224
Posted By Lars
A PMag could have more advanced timing than the...

A PMag could have more advanced timing than the engine needs, which could make it run hot. But, start with the basics. Remove cowl (upper and lower). In darkened hangar, shine flashlight up from...
Forum: Glass Cockpit 05-03-2019, 09:46 AM
Replies: 10
Views: 1,465
Posted By Lars
Someone at ForeFlight must peruse this forum- I...

Someone at ForeFlight must peruse this forum- I just checked ForeFlight on my iFone (has latest update) and it found it.
Forum: RV-7/7A 05-02-2019, 11:14 PM
Replies: 10
Views: 1,402
Posted By Lars
I'm not sure I understand all your questions...

I'm not sure I understand all your questions (it's late and the beer in the fridge was beckoning yet again) but I used spacers on the front and rear bows only. Along the side I cut the canopy so...
Forum: RV General Discussion/News 05-02-2019, 11:04 PM
Replies: 8
Views: 1,440
Posted By Lars
What is your true airspeed in that condition? At...

What is your true airspeed in that condition? At 8000' DA it'll be a lot more than 159mph. The numbers on Van's site are true, not indicated, as that's the only way to normalize the values.

Also,...
Forum: RV-9/9A 04-27-2019, 09:49 AM
Replies: 24
Views: 2,291
Posted By Lars
My favorite time of day to confront conundrums...

My favorite time of day to confront conundrums like this is about 2AM. Ha... For what it's worth I also laid up the canopy skirt rather than using aluminum. I used packing tape as mold release (3M...
Forum: RV-9/9A 04-27-2019, 09:42 AM
Replies: 24
Views: 2,291
Posted By Lars
I did apply Sika on the inside. Helps to have...

I did apply Sika on the inside. Helps to have long skinny arms and fingers (I have neither). I masked the deck before plopping the windshield down, used low-adhesion 3M masking tape. It was still fun...
Forum: RV-9/9A 04-26-2019, 04:30 PM
Replies: 24
Views: 2,291
Posted By Lars
I found a couple of photos. Not great (digital...

I found a couple of photos. Not great (digital cameras have come a long way since I did this) but maybe slightly helpful.

This one shows aluminum clips I referred to in a previous post. Along with...
Forum: RV-9/9A 04-26-2019, 04:19 PM
Replies: 24
Views: 2,291
Posted By Lars
Dan makes some important points about thermal...

Dan makes some important points about thermal expansion. In this case the 3-D curves of the canopy and windscreen help us. Consider a windshield fixed at both ends of the (curved) roll bar. The...
Forum: RV-9/9A 04-25-2019, 10:39 PM
Replies: 24
Views: 2,291
Posted By Lars
Therein lies a potential problem. Is it in fact...

Therein lies a potential problem. Is it in fact bonded? When I was building I saw numerous local RVs in the blazing-hot-in-the-summer/cold-in-the-winter Sacramento Valley with delaminating...
Forum: RV General Discussion/News 04-21-2019, 10:00 PM
Replies: 10
Views: 1,061
Posted By Lars
9 years. 780 hours. RV-7 slider. Only scuffed...

9 years. 780 hours. RV-7 slider. Only scuffed powder coat. Bonded canopy and windscreen, no rivets or screws into plexi anywhere. Used 209D primer on all surfaces including bare aluminum. Zero...
Forum: ADS-B 03-13-2019, 09:35 PM
Replies: 25
Views: 4,808
Posted By Lars
Sent you a PM.

Sent you a PM.
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