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Search: Posts Made By: Lars
Forum: RV General Discussion/News 02-12-2020, 10:06 AM
Replies: 30
Views: 3,203
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, 11:25 AM
Replies: 10
Views: 762
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, 11:07 PM
Replies: 18
Views: 1,444
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, 02:07 PM
Replies: 48
Views: 4,344
Posted By Lars
Lots of beautiful white sand there. Oh. wait...

Lots of beautiful white sand there. Oh. wait...
Forum: Autopilots 01-15-2020, 10:37 PM
Replies: 10
Views: 649
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, 10:10 AM
Replies: 10
Views: 649
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, 07:22 PM
Replies: 18
Views: 2,669
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, 05:03 PM
Replies: 8
Views: 1,385
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, 10:05 PM
Replies: 106
Views: 8,379
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, 09:15 AM
Replies: 31
Views: 5,002
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, 11:48 PM
Replies: 9
Views: 831
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: RV General Discussion/News 12-02-2019, 11:32 PM
Replies: 35
Views: 4,089
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, 11:24 PM
Replies: 31
Views: 5,002
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: RV General Discussion/News 10-27-2019, 12:33 PM
Replies: 35
Views: 4,089
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: RV General Discussion/News 10-25-2019, 10:31 AM
Replies: 35
Views: 4,089
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, 11:46 PM
Replies: 39
Views: 6,293
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, 11:19 AM
Replies: 7
Views: 1,360
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, 11:24 AM
Replies: 7
Views: 1,360
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, 11:46 PM
Replies: 7
Views: 1,360
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, 10:02 PM
Replies: 2
Views: 574
Posted By Lars
Me :) Already know the details ;)

Me :)

Already know the details ;)
Forum: RV General Discussion/News 09-05-2019, 11:30 PM
Replies: 31
Views: 3,646
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, 02:04 PM
Replies: 145
Views: 16,974
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, 09:04 PM
Replies: 145
Views: 16,974
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, 11:25 PM
Replies: 116
Views: 143,184
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, 11:23 AM
Replies: 41
Views: 7,510
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, 09:33 AM
Replies: 13
Views: 2,448
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, 05:36 PM
Replies: 25
Views: 2,874
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, 01:49 PM
Replies: 10
Views: 1,305
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, 01:39 PM
Replies: 25
Views: 2,874
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 05-07-2019, 12:25 AM
Replies: 25
Views: 2,874
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, 10:46 AM
Replies: 10
Views: 1,390
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 05-03-2019, 12:14 AM
Replies: 10
Views: 1,305
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 05-03-2019, 12:04 AM
Replies: 8
Views: 1,312
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, 10:49 AM
Replies: 24
Views: 2,027
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, 10:42 AM
Replies: 24
Views: 2,027
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, 05:30 PM
Replies: 24
Views: 2,027
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, 05:19 PM
Replies: 24
Views: 2,027
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, 11:39 PM
Replies: 24
Views: 2,027
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, 11:00 PM
Replies: 10
Views: 1,003
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, 10:35 PM
Replies: 25
Views: 4,382
Posted By Lars
Sent you a PM.

Sent you a PM.
Forum: Electronic Ignition Systems 03-10-2019, 10:57 PM
Replies: 10
Views: 1,397
Posted By Lars
Each coil fires two plugs. If the processor or...

Each coil fires two plugs. If the processor or primary wire is failing and affecting a coil, then two cylinders will have issues. OTOH a failing coil could affect one cylinder. I removed a Plasma II...
Forum: RV Ongoing Maintenance Issues 03-05-2019, 10:37 AM
Replies: 29
Views: 5,086
Posted By Lars
https://www.aircraftspruce.com/catalog/lgpages/ber...

https://www.aircraftspruce.com/catalog/lgpages/beringer5nose.php
https://www.aircraftspruce.com/catalog/lgpages/beringer5rvfinishing.php

Which I know about only because I suffer from Beringer Wheel...
Forum: Electrical Systems 03-02-2019, 12:46 PM
Replies: 41
Views: 2,808
Posted By Lars
Or consider a more exotic, expensive but...

Or consider a more exotic, expensive but extremely reliable switch such as a Gigavac MX11S**. As a bonus the hold current is a tiny fraction of the switching current, something that might be...
Forum: RV-9/9A 03-01-2019, 10:30 AM
Replies: 18
Views: 1,619
Posted By Lars
Or if you are lazy like me, GRT says they can be...

Or if you are lazy like me, GRT says they can be mounted on a vertical surface, so I did. 2 holes through the end rib of the wing, another for a zip tie to retain wires. Done. Which is not to...
Forum: ADS-B 02-28-2019, 11:29 PM
Replies: 133
Views: 31,115
Posted By Lars
Exactly that combo. 3 different aircraft. iPad...

Exactly that combo. 3 different aircraft. iPad didn’t know where it was. External gps chip solved the problem each time. My understanding was/is that the gps info supplied via the WiFi signal to the...
Forum: ADS-B 02-28-2019, 12:06 PM
Replies: 133
Views: 31,115
Posted By Lars
iPad and Foreflight

Specifically the issue I've seen running ForeFlight on a wifi-only iPad is that traffic is depicted in the correct location on the map background, but ForeFlight (the iPad) doesn't know where your...
Forum: RV-4 02-28-2019, 12:00 PM
Replies: 104
Views: 68,611
Posted By Lars
Boy, I'll say. I've cut a tire open just to look....

Boy, I'll say. I've cut a tire open just to look. The overlap was ugly, though that was a sample of 1. My current set (Desser Aero Classic) is ok. Worst one was less than 1/4" out of round after...
Forum: RV-4 02-28-2019, 10:40 AM
Replies: 104
Views: 68,611
Posted By Lars
It was a noticeable improvement for me in...

It was a noticeable improvement for me in rough/soft field ops. But it made the gear legs on my RV-7 shake like a paint mixer on landing starting around 30 knots, until I slowed to below 20. I tried...
Forum: RV-9/9A 02-28-2019, 10:32 AM
Replies: 18
Views: 1,619
Posted By Lars
That's a popular AHARS mounting spot for Dynon...

That's a popular AHARS mounting spot for Dynon SkyView systems, in which the (external) AHARS also includes a magnetometer. It would probably work fine for the GRT magnetometer, but it's more work...
Forum: ADS-B 02-28-2019, 10:19 AM
Replies: 133
Views: 31,115
Posted By Lars
But I can tell you from personal experience...

But I can tell you from personal experience installing several Echos that the iPad can't use that gps data to know where it is. If you buy a wifi only iPad you will need an external gps chip for that.
Forum: RV-10 02-28-2019, 09:57 AM
Replies: 33
Views: 3,832
Posted By Lars
You just dated yourself, Mike!

You just dated yourself, Mike!
Forum: RV-9/9A 02-25-2019, 06:21 PM
Replies: 18
Views: 1,619
Posted By Lars
X2 on Painless' recommendation. I've had one...

X2 on Painless' recommendation. I've had one mounted there and it calibrated nicely. GRT recommends wingtip mounting for RV's, and describes that in their installation manuals. I have one there now...
Forum: RV General Discussion/News 02-15-2019, 10:26 AM
Replies: 24
Views: 3,056
Posted By Lars
Thank you for your efforts. I'll confess to...

Thank you for your efforts. I'll confess to having been a bit skeptical about whether your efforts would be worth the trouble; clearly they were, to the benefit of many of us. I'm thinking about...
Forum: Alternative Engines 02-10-2019, 11:19 PM
Replies: 485
Views: 75,758
Posted By Lars
I can comment on that valve. It looks exactly...

I can comment on that valve. It looks exactly like the heater valve used on millions of Ford vehicles, decades ago, including my 1970 Bronco. They do not throttle, even though upon visual inspection...
Forum: RV General Discussion/News 01-19-2019, 11:48 AM
Replies: 67
Views: 7,408
Posted By Lars
My concern was the same as Alex's; that was why I...

My concern was the same as Alex's; that was why I posted my T/O numbers. This clarifies things.

Question: I presume the hexagonal cylinders on top of the pumps are the relief valves (or pressure...
Forum: RV General Discussion/News 01-18-2019, 12:04 PM
Replies: 67
Views: 7,408
Posted By Lars
max fuel flow

For what it's worth, I routinely see takeoff fuel flow numbers above 16 gph departing sea level airports (Sacramento Valley) even in hot weather. In cooler weather, above 17 gph. As measured with an...
Forum: RV General Discussion/News 01-17-2019, 10:30 AM
Replies: 67
Views: 7,408
Posted By Lars
Thanks for posting the link. I've wondered what...

Thanks for posting the link. I've wondered what became of Walbro, but being easily distracted, every time I've gone looking I failed to figure it out. I see now they were bought up. FWIW GSL393 pumps...
Forum: RV General Discussion/News 01-16-2019, 05:03 PM
Replies: 67
Views: 7,408
Posted By Lars
Dan, are you thinking returnless system? I...

Dan, are you thinking returnless system? I remember seeing them on Ford Explorers starting around 1998 or so (there were/are probably lots of others, those are just the ones I came across) when I was...
Forum: Propellers 01-10-2019, 12:10 AM
Replies: 1
Views: 476
Posted By Lars
Try Lee Apaka at Team Light Aviation in Rio Vista...

Try Lee Apaka at Team Light Aviation in Rio Vista (O88). 707-863-1121.
Forum: ADS-B 01-10-2019, 12:08 AM
Replies: 25
Views: 4,382
Posted By Lars
Andy, my Sport SX was of a similar vintage (I...

Andy, my Sport SX was of a similar vintage (I just upgraded to an HXr that fits on the same spot). Mine had the high speed processor mod that gave it a 5th serial port (that's standard now, I...
Forum: ADS-B 01-09-2019, 11:58 PM
Replies: 25
Views: 4,382
Posted By Lars
Depending on the vintage and option level of the...

Depending on the vintage and option level of the Sport, it will have either 4 or 5 serial ports. The HX will have 8. Presumably you have serial in/out connected between each display as an...
Forum: RV General Discussion/News 12-31-2018, 10:50 AM
Replies: 11
Views: 2,159
Posted By Lars
Enjoy, Jim. You got yourself a nice clean...

Enjoy, Jim. You got yourself a nice clean straight RV-6A.
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