VansAirForceForums  
Home > VansAirForceForums

- POSTING RULES
- Donate yearly (please).
- Advertise in here!

- Today's Posts | Insert Pics


Go Back   VAF Forums > Search Forums
Register FAQ Members List Calendar Search Today's Posts Mark Forums Read

Showing results 1 to 62 of 500
Search took 0.36 seconds.
Search: Posts Made By: AlexPeterson
Forum: Trip Write-ups 07-15-2018, 03:17 PM
Replies: 54
Views: 16,176
Posted By AlexPeterson
Australia!! Amazing journey!

Australia!! Amazing journey!
Forum: RV Building Tips/Techniques 07-11-2018, 09:32 AM
Replies: 15
Views: 1,874
Posted By AlexPeterson
It depends on the flow regime (laminar or...

It depends on the flow regime (laminar or turbulent). Our short runs to the oil cooler aren't long enough in all likelihood to develop the flow regime, so it's probably mostly just chaotic...
Forum: Places To Fly...Things to See...Things to Eat 07-10-2018, 09:01 PM
Replies: 14
Views: 1,715
Posted By AlexPeterson
Kate, I want to see the video of how you and your...

Kate, I want to see the video of how you and your dad changed seats mid-flight...hehehe
Forum: RV Building Tips/Techniques 07-10-2018, 06:14 PM
Replies: 15
Views: 1,874
Posted By AlexPeterson
It is a common myth that the smallest restriction...

It is a common myth that the smallest restriction somehow sets the flow rate for the whole system. The transition shapes are probably much more important than some minimum section area, particularly...
Forum: RV General Discussion/News 06-29-2018, 06:53 AM
Replies: 35
Views: 3,870
Posted By AlexPeterson
Not quite true - the bolt will still see cyclic...

Not quite true - the bolt will still see cyclic loading, but the magnitude of fluctuation will only be a small percentage of the externally applied cyclic load in a properly designed joint. The...
Forum: Traditional Aircraft Engines 06-19-2018, 11:23 AM
Replies: 19
Views: 2,029
Posted By AlexPeterson
Bill, I found a number of air leaks around fins...

Bill, I found a number of air leaks around fins on #4. In a darkened hangar, take a flashlight from below and above, while observing for light "leaks". Hard to describe in words where I found them,...
Forum: RV General Discussion/News 06-07-2018, 09:27 PM
Replies: 12
Views: 1,127
Posted By AlexPeterson
While building my plane (or later whenever...

While building my plane (or later whenever removing and/or replacing a hose), just before assembling a hose into the airframe, I'd run a small wire through each tube/hose, and pull a solvent soaked...
Forum: Glass Cockpit 05-24-2018, 07:22 AM
Replies: 8
Views: 904
Posted By AlexPeterson
Steve, thanks for the update. Alex

Steve, thanks for the update.
Alex
Forum: RV Friends Who Have Passed On 05-23-2018, 05:26 PM
Replies: 19
Views: 7,069
Posted By AlexPeterson
Pictures and video from the Wisconsin Celebration of Life

Here are some updates, pictures and video from this past Saturday's Celebration of Life event at Tom's hangar in WI. There was a similar event in FL last month. Tom really had a profound effect on...
Forum: Glass Cockpit 05-23-2018, 07:36 AM
Replies: 8
Views: 904
Posted By AlexPeterson
Managing Database Updates - G3X Touch

I am curious how others manage updating their databases, particularly the data heavy charts.

Specifically, it is perhaps a reasonable practice to update the entire US set of charts once a year, and...
Forum: RV General Discussion/News 05-03-2018, 11:22 AM
Replies: 34
Views: 2,588
Posted By AlexPeterson
Be sure all fuel is dried out before you do this,...

Be sure all fuel is dried out before you do this, or it will simply boil and behave like a leak.
Forum: RV General Discussion/News 05-03-2018, 11:19 AM
Replies: 34
Views: 2,588
Posted By AlexPeterson
I'm guessing if you change the rpm some, you'll...

I'm guessing if you change the rpm some, you'll see the oscillations go away. Regarding the sampling rate, the 1/s is probably what is saved to your flight log. I wasn't able to figure out what the...
Forum: RV General Discussion/News 05-02-2018, 08:31 PM
Replies: 34
Views: 2,588
Posted By AlexPeterson
Approximately what is the frequency? I've...

Approximately what is the frequency? I've noticed this at about 2400 RPM as monitored by the G3x Touch. I believe it may have to do with the sampling frequency of the engine monitor vs pressure...
Forum: RV General Discussion/News 04-29-2018, 04:18 PM
Replies: 64
Views: 6,051
Posted By AlexPeterson
Data point for AFP pump

I know various pumps are being discussed, but here's one data point for the Airflow Performance pump on my plane (installed in 2001), which I understand is an automotive one:

I had it on for 1.5...
Forum: RV General Discussion/News 04-27-2018, 07:58 PM
Replies: 13
Views: 1,886
Posted By AlexPeterson
Scott - I didn't have water to offer, but I did...

Scott - I didn't have water to offer, but I did inform the nice guy halfway through the taxi jam that I was indeed going to leave the line and go shut down near some T hangars. He told me I couldn't...
Forum: RV General Discussion/News 04-27-2018, 03:48 PM
Replies: 13
Views: 1,886
Posted By AlexPeterson
Uh, yes, good idea. The 3 planes ahead of me...

Uh, yes, good idea. The 3 planes ahead of me last summer all requested and got 36. Silly me thought maybe the pattern would be less crowded to 27, which it was. But...the 1.5 hour taxi from 27 to...
Forum: RV Friends Who Have Passed On 04-22-2018, 03:19 PM
Replies: 19
Views: 7,069
Posted By AlexPeterson
The prop carver is Paul Irlbeck, Tom's brother.

The prop carver is Paul Irlbeck, Tom's brother.
Forum: RV Friends Who Have Passed On 04-20-2018, 05:25 PM
Replies: 19
Views: 7,069
Posted By AlexPeterson
I can't resist posting this picture. I do not...

I can't resist posting this picture. I do not recall just how Tom got the plane and smoke in this particular...
Forum: RV Friends Who Have Passed On 04-20-2018, 05:13 PM
Replies: 19
Views: 7,069
Posted By AlexPeterson
Here's the picture Eric was trying to post of Tom...

Here's the picture Eric was trying to post of Tom helping to give Eric's father a ride in their new...
Forum: RV Friends Who Have Passed On 04-18-2018, 02:26 PM
Replies: 19
Views: 7,069
Posted By AlexPeterson
Here's a picture of Tom in "Bear" way back in...

Here's a picture of Tom in "Bear" way back in 2001. He's the only person I'd ever let fly anywhere near that close to...
Forum: RV-4 04-18-2018, 07:52 AM
Replies: 7
Views: 1,250
Posted By AlexPeterson
Mike, nice catch. Could that damage have been...

Mike, nice catch. Could that damage have been from the two rod ends on that particular pushrod being clocked with a "twist", causing binding? It almost looks like a washer was grinding into the...
Forum: RV Friends Who Have Passed On 04-15-2018, 08:23 PM
Replies: 19
Views: 7,069
Posted By AlexPeterson
This is a very difficult day. Tom was a flying...

This is a very difficult day. Tom was a flying mentor and a good friend, having transition trained me in RV's almost 17 years ago, as well as having made the first flight in my plane.

A very short...
Forum: Traditional Aircraft Engines 04-12-2018, 08:51 PM
Replies: 5
Views: 917
Posted By AlexPeterson
All steel has carbon - I'm curious why you asked?

All steel has carbon - I'm curious why you asked?
Forum: RV General Discussion/News 03-30-2018, 06:34 AM
Replies: 28
Views: 4,524
Posted By AlexPeterson
Please do not use a standard drill bit... Yes,...

Please do not use a standard drill bit... Yes, many will report doing so without problems. A regular drill bit, just as it is starting to break through the far side, will "pull" itself through the...
Forum: RV General Discussion/News 03-23-2018, 07:30 AM
Replies: 16
Views: 1,174
Posted By AlexPeterson
What a wealth of talent this group has - thanks...

What a wealth of talent this group has - thanks Lynn and Rodrigo.

If one simply grabs the url from the browser of a photo today, it starts with:

"https://photos.google.com/share/AF1Q", and I do not...
Forum: RV General Discussion/News 03-22-2018, 07:46 PM
Replies: 16
Views: 1,174
Posted By AlexPeterson
Interesting stuff about Google’s photos. Can you...

Interesting stuff about Google’s photos. Can you see the images in my first post in this 9 yr old thread?
http://www.vansairforce.com/community/showthread.php?t=41048
Forum: RV General Discussion/News 03-22-2018, 12:40 PM
Replies: 16
Views: 1,174
Posted By AlexPeterson
Here is what seems to work in Chrome. I'd think...

Here is what seems to work in Chrome. I'd think it should work in any browser, but I can't say for sure.

Steps 3 and 4 must be followed carefully, and I don't believe anyone has suggested this...
Forum: RV-12 03-19-2018, 08:12 AM
Replies: 20
Views: 3,724
Posted By AlexPeterson
Uh, Pete, let's just say my panel is a bit newer...

Uh, Pete, let's just say my panel is a bit newer than yours...and I don't hate it!

Re the Swift fuel, we've got a great thing going. Nice 20 minute flight over, $3.25/gallon, clean engines, what's...
Forum: RV-10 03-15-2018, 04:37 PM
Replies: 8
Views: 852
Posted By AlexPeterson
Someday, perhaps, someone will get to the bottom...

Someday, perhaps, someone will get to the bottom of the mystery of fluctuating fuel pressures. Pressure "drop-outs" have quite commonly been reported on this forum. I've had them myself for 16...
Forum: RV General Discussion/News 03-08-2018, 01:14 PM
Replies: 27
Views: 3,122
Posted By AlexPeterson
Wonder if anyone has ever flown an RV without a...

Wonder if anyone has ever flown an RV without a cowl prior to this flight? Seems flow over the tail and wing roots would be pretty messed up.
Forum: COMM 03-07-2018, 10:50 AM
Replies: 17
Views: 1,610
Posted By AlexPeterson
In addition to what Dan said, one of the papers...

In addition to what Dan said, one of the papers noted strong reduction in EMI coupling when braid is inserted completely inside the metal back shell housing. That paper did clamp the metallic shield...
Forum: COMM 03-05-2018, 02:27 PM
Replies: 17
Views: 1,610
Posted By AlexPeterson
I'd better ground my plane immediately (is there...

I'd better ground my plane immediately (is there a pun...
Forum: RV General Discussion/News 02-16-2018, 03:49 PM
Replies: 59
Views: 6,843
Posted By AlexPeterson
Great - now cover up the fuel pressure gauge and...

Great - now cover up the fuel pressure gauge and don't look at it anymore! Given the number of people who've posted similar fluctuations, I'd say the fluctuations are not completely unexpected. ...
Forum: Florida (South) 02-13-2018, 12:14 PM
Replies: 7
Views: 1,180
Posted By AlexPeterson
Oh yeah, I've got a note in my calendar to get...

Oh yeah, I've got a note in my calendar to get even with Mike's most excellent troll in about August... or maybe during the next hurricane... :eek:

Hey, I didn't notice any bugs on my plane Sunday,...
Forum: Safety 02-08-2018, 03:06 PM
Replies: 42
Views: 6,126
Posted By AlexPeterson
You certainly might be right about the whole...

You certainly might be right about the whole thing being a crock. But, alpha particles, while harmlessly not penetrating skin, are believed to be problematic when emitted directly against lung...
Forum: Acts of Charity (using your RV) 01-29-2018, 09:50 AM
Replies: 54
Views: 15,745
Posted By AlexPeterson
Oh, man, Pete, that is tough news, sorry.

Oh, man, Pete, that is tough news, sorry.
Forum: RV General Discussion/News 01-28-2018, 08:58 PM
Replies: 59
Views: 6,843
Posted By AlexPeterson
I’ve had exactly that sort of experience. Seems...

I’ve had exactly that sort of experience. Seems like a stretch to blame it on a simple mechanical fuel pump.
Forum: RV General Discussion/News 01-28-2018, 04:35 PM
Replies: 1
Views: 424
Posted By AlexPeterson
EFIS and Eng Monitor Mfrs. Please Comment

There is yet another thread regarding fuel pressure excursions currently running, which seems to be a very commonly reported problem on this forum. By excursions, I mean atypically low pressures...
Forum: Safety 01-26-2018, 07:04 AM
Replies: 42
Views: 6,126
Posted By AlexPeterson
First Alert's test kit costs about $15, needs...

First Alert's test kit costs about $15, needs 48-72 hrs exposure time, with windows closed. Add another $7 to ship via priority mail, as they claim a high number of standard mail ones do not get to...
Forum: Safety 01-23-2018, 03:18 PM
Replies: 5
Views: 768
Posted By AlexPeterson
I'd be curious how the torque to rotate the valve...

I'd be curious how the torque to rotate the valve would increase, if any Fuel Lube is on the nylon spindle, and the valve is put in a freezer. That stuff gets really viscous when cold.
Forum: RV Ongoing Maintenance Issues 01-22-2018, 07:50 PM
Replies: 11
Views: 1,640
Posted By AlexPeterson
You probably know this, but be sure whatever...

You probably know this, but be sure whatever drill you use is either made specifically for acrylic or modified appropriately.
Forum: RV Building Tips/Techniques 01-21-2018, 09:34 AM
Replies: 64
Views: 7,550
Posted By AlexPeterson
I re-read this thread, and have some...

I re-read this thread, and have some thoughts.

It seems we've been discussing stress concentration factors, which are typically used when, for example, one places a strip of material containing...
Forum: RV Building Tips/Techniques 01-10-2018, 07:06 AM
Replies: 64
Views: 7,550
Posted By AlexPeterson
I believe there is one zero missing from each...

I believe there is one zero missing from each coefficient.

4130 Steel: about 7 x 10E-6
Acrylic: about 40 x 10E-6

Both with in/in/R units.
Forum: RV Building Tips/Techniques 01-08-2018, 01:31 PM
Replies: 64
Views: 7,550
Posted By AlexPeterson
The reflective discontinuity across the crack...

The reflective discontinuity across the crack seems to indicate (as you note, Scott) that more than thermal stresses are at work. Looks like either built-in curvature problems, or curvature which...
Forum: RV-6/6A 01-01-2018, 03:38 PM
Replies: 14
Views: 2,911
Posted By AlexPeterson
Lots of things to do, all documented on this...

Lots of things to do, all documented on this forum. Try searching for cabin heat or similar, and study away!
Forum: RV Photo/Video URLs 12-20-2017, 02:55 PM
Replies: 6
Views: 1,375
Posted By AlexPeterson
Very nice - thanks for sharing! I like the...

Very nice - thanks for sharing! I like the altitude, speed and track showing also, very clever. Beautiful area. How about the house on the ridge at the 1:00 mark??
Forum: Traditional Aircraft Engines 12-02-2017, 10:54 AM
Replies: 60
Views: 7,795
Posted By AlexPeterson
Even easier to see post #1 on this thread.

Even easier to see post #1 on this thread.
Forum: Traditional Aircraft Engines 12-01-2017, 09:23 PM
Replies: 60
Views: 7,795
Posted By AlexPeterson
Kahuna, Am I interpreting the fuel flow...

Kahuna,

Am I interpreting the fuel flow correctly? It seems that when you took off at about minute 3, you were burning about 16-17 gph, which is about right at full rich WOT.

But, then at about...
Forum: RV-9/9A 12-01-2017, 06:51 AM
Replies: 4
Views: 656
Posted By AlexPeterson
Nose wheel not touching the ground, pull at axle...

Nose wheel not touching the ground, pull at axle location 90 degrees to swivel.
Forum: Traditional Aircraft Engines 11-30-2017, 08:59 PM
Replies: 60
Views: 7,795
Posted By AlexPeterson
Pardon my ignorance of how this is done on a...

Pardon my ignorance of how this is done on a Lycoming, but for the check of the cam lift do you rotate the engine and measured how far the exhaust valve on #1 moves as compared to the others? Maybe...
Forum: Traditional Aircraft Engines 11-27-2017, 08:32 PM
Replies: 60
Views: 7,795
Posted By AlexPeterson
The possible theory is the case where the exhaust...

The possible theory is the case where the exhaust valve isn't opening as far as it should (worn forward most cam lobe), it will restrict the exhaust cycle, which in turn might restrict air intake in...
Forum: Traditional Aircraft Engines 11-27-2017, 05:59 PM
Replies: 60
Views: 7,795
Posted By AlexPeterson
Hmmm.

Have you measured the cam lift on exhaust valve #1? I believe it is on its own lobe.

Thoughts:
1. It'd be helpful to see fuel flow on this data as well. I don't know if you can share the link to...
Forum: Traditional Aircraft Engines 11-25-2017, 08:12 AM
Replies: 13
Views: 2,686
Posted By AlexPeterson
Looks like all that mogas is really causing havoc...

Looks like all that mogas is really causing havoc with the valves....:)
Forum: RV General Discussion/News 11-21-2017, 07:18 AM
Replies: 7
Views: 1,155
Posted By AlexPeterson
Nope, turns out there are quite a few Petersons...

Nope, turns out there are quite a few Petersons in MN...
Forum: RV General Discussion/News 11-20-2017, 07:48 PM
Replies: 7
Views: 1,155
Posted By AlexPeterson
Sunset over MN

This was simply too amazing not to share, taken tonight over Vadnais Heights, a NE suburb of the Twin Cities. The view is towards the SW, with Vadnais Lake just touching the wing, and Lakes Wabasso...
Forum: RV General Discussion/News 11-19-2017, 06:15 PM
Replies: 52
Views: 6,538
Posted By AlexPeterson
Another low cost option is to use the classic...

Another low cost option is to use the classic porcelain lamp bases (which are now plastic), and 100w equivalent LED bulbs. The 100w equivalent aren't too commonly found yet at the big boxes, but...
Forum: Glass Cockpit 11-16-2017, 04:45 PM
Replies: 3
Views: 1,387
Posted By AlexPeterson
This was fixed with a software update (G3X Touch)...

This was fixed with a software update (G3X Touch) maybe in the summer time frame.

There is still a quirk: if you are in the air with no flight plan, and do a direct-to from the G3X, meaning no...
Forum: RV Ongoing Maintenance Issues 11-15-2017, 08:33 PM
Replies: 6
Views: 682
Posted By AlexPeterson
If you haven't already tried it, you might want...

If you haven't already tried it, you might want to disconnect/swap probes between the offending one and another one that is working, just to verify it's the probe and not the receiving end.
Forum: RV Ongoing Maintenance Issues 11-12-2017, 12:32 PM
Replies: 17
Views: 1,543
Posted By AlexPeterson
This is great! I've used the same wax ring for...

This is great! I've used the same wax ring for 20 years on screws which go into nutplates. I'll try it on the pins next de-cowling! Mine go in and out fairly easily, but will still try it.
Forum: RV Ongoing Maintenance Issues 11-11-2017, 07:03 PM
Replies: 17
Views: 1,543
Posted By AlexPeterson
Be sure also to look at eyelet alignment. When...

Be sure also to look at eyelet alignment. When riveting the hinge strips on, it is easy to get some eyelets out of alignment. Put the pin through each side by itself, and carefully examine for any...
Forum: RV Building Tips/Techniques 11-06-2017, 08:35 PM
Replies: 7
Views: 681
Posted By AlexPeterson
EZ-Turn (Fuel Lube). Great sticky stuff for...

EZ-Turn (Fuel Lube). Great sticky stuff for holding stuff together during assembly. Also great to stick a nut or washer to a finger tip for placement.
Forum: RV Building Tips/Techniques 11-03-2017, 10:02 AM
Replies: 73
Views: 7,884
Posted By AlexPeterson
Moderators - please move this from "Temp"

Too valuable to let disappear.
Showing results 1 to 62 of 500

 
Forum Jump

All times are GMT -6. The time now is 12:10 PM.


The VAFForums come to you courtesy Delta Romeo, LLC. By viewing and participating in them you agree to build your plane using standardized methods and practices and to fly it safely and in accordance with the laws governing the country you are located in.