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Search: Posts Made By: AlexPeterson
Forum: RV Ongoing Maintenance Issues Yesterday, 11:55 AM
Replies: 14
Views: 541
Posted By AlexPeterson
Excellent idea. I'll pretend I also thought of...

Excellent idea. I'll pretend I also thought of that...
I do recall checking those torques a hundred hours or so after plane first flew a third of my life ago...

Just ran the 4 nuts to 22ft-lbs. They...
Forum: RV Ongoing Maintenance Issues Yesterday, 11:33 AM
Replies: 14
Views: 541
Posted By AlexPeterson
Excellent idea. I'll pretend I also thought of...

Excellent idea. I'll pretend I also thought of that...
I do recall checking those torques a hundred hours or so after plane first flew a third of my life ago...
Forum: RV Ongoing Maintenance Issues Yesterday, 06:37 AM
Replies: 14
Views: 541
Posted By AlexPeterson
Mike - thanks for posting those pictures. Yours...

Mike - thanks for posting those pictures. Yours looks identical to mine. The head broke off at the plane of the underside of the head. Meaning, they didn't shear at the plane between the two back...
Forum: RV Ongoing Maintenance Issues 05-17-2022, 08:23 PM
Replies: 14
Views: 541
Posted By AlexPeterson
A couple additional details: Fiberglass...

A couple additional details:

Fiberglass spinner.
Almost 1800 hours total time on the spinner assembly and installation.
Assembly per plans circa 1993.
Tracking very true.
The prop blade paint is...
Forum: RV Ongoing Maintenance Issues 05-17-2022, 08:11 PM
Replies: 14
Views: 541
Posted By AlexPeterson
Scott, yes. The strange thing about this is that...

Scott, yes. The strange thing about this is that it went many hours without a problem, then about 50 hours after the backing plate was disassembled/reassembled to the prop hub (I had the prop...
Forum: RV Ongoing Maintenance Issues 05-15-2022, 04:42 PM
Replies: 14
Views: 541
Posted By AlexPeterson
Smoking rivets on spinner backing plate assy

I'm doing the annual inspection on the plane, the 21st such time! Somewhere after a few hundred hours, I noticed a universal head rivet on the spinner backing plate assembly had lost its head. I...
Forum: RV Building Tips/Techniques 05-03-2022, 06:18 AM
Replies: 9
Views: 695
Posted By AlexPeterson
One more advantage over the corrugated is that it...

One more advantage over the corrugated is that it is straight. I was able to push an additional wire (years after the initial build) from the wingtip all the way to the bell crank and then to the...
Forum: Tools 05-02-2022, 08:59 PM
Replies: 2
Views: 670
Posted By AlexPeterson
I sure hope that lithium battery has a built-in...

I sure hope that lithium battery has a built-in battery management system. Otherwise you might have a fire.

Side note: years ago I bought some sleezy after-market nicads for a 12v Dewalt drill. I...
Forum: RV Ongoing Maintenance Issues 04-20-2022, 09:13 PM
Replies: 30
Views: 2,888
Posted By AlexPeterson
I might put one layer of glass on the outside,...

I might put one layer of glass on the outside, and a couple layers on the inside in the affected areas. Having only one on the outside will make blending easier.
Maybe also put a couple layers on...
Forum: Tools 04-19-2022, 05:10 AM
Replies: 25
Views: 2,090
Posted By AlexPeterson
It's really hard to beat motor oil of most any...

It's really hard to beat motor oil of most any sort for this application. Wipe on to protect, done. You can rub most off when you are ready to use it if keeping the sheets clean is important.
Forum: RV Building Tips/Techniques 04-13-2022, 04:30 PM
Replies: 3
Views: 651
Posted By AlexPeterson
Great idea - thanks for sharing. Resting one's...

Great idea - thanks for sharing. Resting one's hand (or at least the forearm) on something is key to TIG for me, at least.
Forum: RV Building Tips/Techniques 04-08-2022, 06:38 AM
Replies: 17
Views: 1,499
Posted By AlexPeterson
This is great - kills two birds with one stone. ...

This is great - kills two birds with one stone. Very accurate pressure reading plus relief "valve". It is exactly what I did maybe 28 years ago...

BTW - 30" water will generate the same gauge...
Forum: RV Ongoing Maintenance Issues 04-04-2022, 10:25 AM
Replies: 30
Views: 2,888
Posted By AlexPeterson
Mac - please post a picture of the pants, it...

Mac - please post a picture of the pants, it would help to know what the issues are.
Forum: RV General Discussion/News 03-18-2022, 05:02 AM
Replies: 28
Views: 3,409
Posted By AlexPeterson
Get different flying friends...:p:p

Get different flying friends...:p:p
Forum: RV Ongoing Maintenance Issues 03-11-2022, 04:25 PM
Replies: 19
Views: 1,684
Posted By AlexPeterson
Most hobbs are set to record engine run time, not...

Most hobbs are set to record engine run time, not master on time. Standard practice is as discussed earlier in this thread - direct from an always-hot bus.

So, to run it backwards, first find a...
Forum: RV General Discussion/News 03-10-2022, 12:49 PM
Replies: 15
Views: 2,454
Posted By AlexPeterson
Wow - that is some great writing! There is a...

Wow - that is some great writing!

There is a thread here on recommended flying books IIRC, perhaps it should be added there.
Forum: Tools 03-10-2022, 10:01 AM
Replies: 11
Views: 1,504
Posted By AlexPeterson
Delightfully over the top!

Delightfully over the top!
Forum: Propellers 03-08-2022, 06:01 PM
Replies: 9
Views: 1,212
Posted By AlexPeterson
It is really worth taking a few minutes to search...

It is really worth taking a few minutes to search the forums. Tons has been written on this topic. There was a thread not more than a month or two ago that had great information.
Forum: RV Ongoing Maintenance Issues 03-07-2022, 10:10 AM
Replies: 21
Views: 2,425
Posted By AlexPeterson
Re nosegear: I only need a couple jabs when...

Re nosegear:

I only need a couple jabs when taxiing out/in. Above about 10-15 knots ground speed only rudder is needed, winds depending of course. Rudders should be at full travel before touching...
Forum: RV Ongoing Maintenance Issues 03-01-2022, 06:34 PM
Replies: 18
Views: 2,800
Posted By AlexPeterson
Randy - do you have an efis, or at least a fuel...

Randy - do you have an efis, or at least a fuel flow indicator? As others have mentioned, this information would go a long ways towards understanding what might be going on.
Forum: RV Ongoing Maintenance Issues 03-01-2022, 06:53 AM
Replies: 18
Views: 2,800
Posted By AlexPeterson
It could be some vapor/hot fuel working its way...

It could be some vapor/hot fuel working its way through the system, caused by high cowl temperatures and low fuel flow (just prior to throttle advance).

Do you see any correlation with OAT? Does...
Forum: RV Photo/Video URLs 02-24-2022, 07:38 PM
Replies: 7
Views: 1,263
Posted By AlexPeterson
Very nicely done!

Very nicely done!
Forum: RV General Discussion/News 02-22-2022, 11:21 AM
Replies: 60
Views: 8,115
Posted By AlexPeterson
I use half flaps for takeoff probably 99% of the...

I use half flaps for takeoff probably 99% of the time. I like the visibility. Flap switch is next to throttle and can be actuated with my thumb while still holding the throttle. I also do not need...
Forum: Safety 02-21-2022, 04:50 PM
Replies: 66
Views: 5,347
Posted By AlexPeterson
I posted this perhaps 8 years ago, but it might...

I posted this perhaps 8 years ago, but it might be of interest to those following this thread.

I used a somewhat cheapy finger clip oximeter and recorded the reading every minute or two (I don't...
Forum: Safety 02-21-2022, 11:13 AM
Replies: 66
Views: 5,347
Posted By AlexPeterson
Wow, VAF continues to be an amazing resource! I...

Wow, VAF continues to be an amazing resource! I count about 4 MD's and a specialist in flight physiology who have chimed in on this thread - thanks to all!

A question to this group: would our...
Forum: RV General Discussion/News 02-19-2022, 06:27 AM
Replies: 17
Views: 2,421
Posted By AlexPeterson
Ha - Andy, it's all relative to what you are used...

Ha - Andy, it's all relative to what you are used to! This winter seems to be pretty tenacious, with sub-zero temperatures hanging around MN at least through the end of February.
Forum: RV General Discussion/News 02-17-2022, 05:59 PM
Replies: 14
Views: 2,010
Posted By AlexPeterson
It's a rite of passage... Stuff a layer of old...

It's a rite of passage...

Stuff a layer of old t-shirt under where you are working to catch the inevitable dropped parts.
Forum: RV-12/RV-12iS 02-15-2022, 06:20 AM
Replies: 49
Views: 5,699
Posted By AlexPeterson
Glad you solved it. I had exactly the same...

Glad you solved it. I had exactly the same experience - one or two drops of oil on the cone, where it will contact the tube, is all it takes. There should not be a need to back up until the flare...
Forum: Traditional Aircraft Engines 02-11-2022, 09:06 AM
Replies: 25
Views: 4,165
Posted By AlexPeterson
If the pump diaphragm tear is explaining your...

If the pump diaphragm tear is explaining your high oil consumption, the belly would be a huge mess. Is it?

There are about 20 drops of oil per ml. There are about 1000ml per quart. One half quart...
Forum: RV Ongoing Maintenance Issues 02-10-2022, 01:50 PM
Replies: 20
Views: 1,818
Posted By AlexPeterson
Steve - I replaced the tractor valve with an...

Steve - I replaced the tractor valve with an Andair about 12-15 years ago. I had set my original valve up to be a 90 degree rotation between L and R tanks, not wanting a "dead" space between when...
Forum: Traditional Aircraft Engines 02-07-2022, 11:39 AM
Replies: 27
Views: 2,261
Posted By AlexPeterson
Depending on where you are running the engine...

Depending on where you are running the engine (i.e., ROP or LOP) the hot cylinder could also be getting too much fuel. Mixture has a huge impact on CHT's.

It would be helpful if you could get a...
Forum: RV General Discussion/News 01-30-2022, 01:09 PM
Replies: 25
Views: 3,297
Posted By AlexPeterson
Got up for an hour's flight this morning after...

Got up for an hour's flight this morning after almost 2 weeks on the ground... This fish house "neighborhood" is on Detroit Lake in west-central Minnesota. Many of those rigs in the picture are the...
Forum: Traditional Aircraft Engines 01-28-2022, 03:08 PM
Replies: 9
Views: 1,389
Posted By AlexPeterson
And don't forget to safety wire those buggers! ...

And don't forget to safety wire those buggers! It is alarming how instantly loose they become when being removed.
Forum: GPS 01-23-2022, 07:56 AM
Replies: 6
Views: 569
Posted By AlexPeterson
Dan - I'm no help, but I thought that cord design...

Dan - I'm no help, but I thought that cord design was awful. It is impossible to pull the plug out of the unit without applying a lot of bending forces at the same time. I used to try to dig it out...
Forum: RV General Discussion/News 01-22-2022, 08:00 AM
Replies: 30
Views: 5,288
Posted By AlexPeterson
I would think if the discharge of said liquids...

I would think if the discharge of said liquids were at the tail end of a main gear fairing, none would get on the aircraft when used in flight.

Steve, what say you?

Now, if you were taxiing...
Forum: RV Building Tips/Techniques 01-20-2022, 09:07 AM
Replies: 38
Views: 3,554
Posted By AlexPeterson
Copper might be an ideal material for this. The...

Copper might be an ideal material for this. The melting temp is much higher than egt and the thermal conductivity is excellent, about 20x that of SS and almost double that of aluminum.

Re galvanic...
Forum: RV Building Tips/Techniques 01-19-2022, 05:28 PM
Replies: 38
Views: 3,554
Posted By AlexPeterson
Is that a typo, -53C? That is -63F. Count me as...

Is that a typo, -53C? That is -63F. Count me as impressed if you survived a flight in that OAT in an RV!
Forum: RV Building Tips/Techniques 01-19-2022, 05:00 AM
Replies: 38
Views: 3,554
Posted By AlexPeterson
Almost 100% of the RVs I look at have what is...

Almost 100% of the RVs I look at have what is called, in the heat exchanger world, concurrent flow set up for the heat muffs. This is where the exhaust gas and the heated air go through the muff go...
Forum: RV-7/7A 01-17-2022, 05:10 PM
Replies: 50
Views: 7,003
Posted By AlexPeterson
This is on a 6A, 7 row cooler with a throttle:

This is on a 6A, 7 row cooler with a throttle:
Forum: RV General Discussion/News 01-15-2022, 02:11 PM
Replies: 16
Views: 3,019
Posted By AlexPeterson
-15F this morning, but above zero when I got the...

-15F this morning, but above zero when I got the plane out for some snooping around the area. Took a picture of an interesting trend starting to pop up around here - shed condos. Buildings and...
Forum: RV General Discussion/News 01-09-2022, 07:02 AM
Replies: 3
Views: 990
Posted By AlexPeterson
No way to know the answer for a specific plane...

No way to know the answer for a specific plane short of doing it a few seasons. My plane was in a hangar heated to 45F for about 18 years. I'd pre-flight inside the hangar and then drag it out into...
Forum: RV General Discussion/News 01-05-2022, 04:59 PM
Replies: 29
Views: 3,432
Posted By AlexPeterson
Mini-splits can be purchased that work down to...

Mini-splits can be purchased that work down to minus 13F, and maybe colder. I bought one for a workshop at home, and expect the electricity to be about 1/3 of what the 10kw straight electric heater...
Forum: Electronic Ignition Systems 01-04-2022, 11:27 AM
Replies: 22
Views: 2,699
Posted By AlexPeterson
I've had dual direct crank LS3's since around...

I've had dual direct crank LS3's since around 2007, replacing the thrice failed Lasar system. I did not wire it as per LS's installation, as I (like Dan) did not want any action on the pilots part...
Forum: Safety 01-02-2022, 11:28 AM
Replies: 19
Views: 1,999
Posted By AlexPeterson
You guys saying 1 pulls right out of 2? Was it...

You guys saying 1 pulls right out of 2? Was it run dry for a decade? Which part wore enough to allow that?
Forum: Electrical Systems 12-21-2021, 12:12 PM
Replies: 7
Views: 1,300
Posted By AlexPeterson
I suppose Stein's could answer this question.

I suppose Stein's could answer this question.
Forum: Traditional Aircraft Engines 12-19-2021, 07:26 AM
Replies: 114
Views: 16,549
Posted By AlexPeterson
When I initially built the plane, I had a little...

When I initially built the plane, I had a little aluminum plenum I'd built to mount on top of the 7 row Niagara cooler on my O-360. In the plenum, fed by a 3" scat from behind and above #4, I had a...
Forum: RV General Discussion/News 12-19-2021, 07:11 AM
Replies: 16
Views: 3,483
Posted By AlexPeterson
Although a bit cold, there was no wind so I snuck...

Although a bit cold, there was no wind so I snuck out for a sunset flight last night, hoping for some good pictures. While the cabin stays warm, pre-flight and post-flight activities are obnoxious...
Forum: RV General Discussion/News 12-15-2021, 07:17 PM
Replies: 64
Views: 9,269
Posted By AlexPeterson
You win the prize!

You win the prize!
Forum: RV Photo/Video URLs 12-11-2021, 08:32 PM
Replies: 7
Views: 1,526
Posted By AlexPeterson
Welcome to VAF! Yes, water movement. ...

Welcome to VAF!

Yes, water movement. Eventually, most freeze over, but not all.
Forum: RV Photo/Video URLs 12-10-2021, 05:29 PM
Replies: 7
Views: 1,526
Posted By AlexPeterson
Ice Art - Lakes

All of the lakes near me are fully frozen over except for where streams are involved. Here are several that really were interesting pieces of art I thought. The third one was unique as compared to...
Forum: RV General Discussion/News 12-05-2021, 07:39 PM
Replies: 18
Views: 3,010
Posted By AlexPeterson
Wow, finding something that McMaster is out of...

Wow, finding something that McMaster is out of stock on takes some effort, congratulations. I suppose a rod with left and right hand internal threads is not common.
Forum: RV Ongoing Maintenance Issues 12-04-2021, 11:17 AM
Replies: 27
Views: 5,471
Posted By AlexPeterson
My ancient RV6 plans say to use heavy grease on...

My ancient RV6 plans say to use heavy grease on those two (per leg) cylindrical interfaces. I did just that on my 6A, and after a couple years I was getting creaking on the right leg over rough...
Forum: Engine Monitors 12-03-2021, 03:36 PM
Replies: 10
Views: 1,413
Posted By AlexPeterson
There are other important variables besides the...

There are other important variables besides the orifice diameter. The length of the restrictor will greatly affect the damping. Likely even more important is how much air volume there is between...
Forum: RV General Discussion/News 11-28-2021, 05:09 PM
Replies: 19
Views: 3,644
Posted By AlexPeterson
Took a lake patrol flight this morning. Here's a...

Took a lake patrol flight this morning. Here's a shot with a lake that's about 3/4 frozen over, with nice reflections from the morning sun. We live on this lake, so it's fun to see the forming ice...
Forum: RV Building Tips/Techniques 11-23-2021, 01:41 PM
Replies: 18
Views: 2,858
Posted By AlexPeterson
No problem with the standard bolts... But,...

No problem with the standard bolts... But, engine start should be days before airworthiness paperwork and first flight. Why start the engine before everything else is done? Also, non-broken in...
Forum: RV Ongoing Maintenance Issues 11-20-2021, 06:36 AM
Replies: 14
Views: 1,987
Posted By AlexPeterson
Bill - is this the crack location? Assuming it...

Bill - is this the crack location? Assuming it is, and I could not tell from your original post the crack location, so I sure might be wrong...

Something to check - the shoulder screws that are...
Forum: Traditional Aircraft Engines 11-16-2021, 04:41 PM
Replies: 13
Views: 2,020
Posted By AlexPeterson
No answer was provided. Many of us have an oil...

No answer was provided. Many of us have an oil pressure switch in the system which turns on the hobbs. I originally also had a low pressure warning light on my panel connected to the normally...
Forum: Traditional Aircraft Engines 11-15-2021, 08:18 PM
Replies: 24
Views: 2,912
Posted By AlexPeterson
Larry - you are correct. Corrosion does not...

Larry - you are correct. Corrosion does not happen without liquid state and some sort of electrolyte. For example, a tiny spec of salt on a surface will absorb water and cause corrosion locally,...
Forum: Traditional Aircraft Engines 11-15-2021, 09:21 AM
Replies: 13
Views: 2,020
Posted By AlexPeterson
This is a great question.

This is a great question.
Forum: Safety 11-11-2021, 07:06 AM
Replies: 89
Views: 12,242
Posted By AlexPeterson
I think many pilots are not aware of what...

I think many pilots are not aware of what "initial" or "overhead break" means, so they do not know where to look or what to expect. Same as what someone earlier mentioned regarding announcing...
Forum: RV-7/7A 11-10-2021, 01:54 PM
Replies: 10
Views: 2,059
Posted By AlexPeterson
Everything ...

Everything (https://vansairforce.net/community/showthread.php?t=121430)you wanted to know about nose gears, including your question about the mount bolt.
Forum: RV Ongoing Maintenance Issues 10-11-2021, 08:56 AM
Replies: 13
Views: 4,413
Posted By AlexPeterson
Perhaps I'm not seeing this correctly, but didn't...

Perhaps I'm not seeing this correctly, but didn't the original crack appearance follow approximately this line? If so, more paint needs to be removed, ideally with some stripper and not sandpaper,...
Forum: Traditional Aircraft Engines 09-30-2021, 05:51 AM
Replies: 13
Views: 2,333
Posted By AlexPeterson
Michael - it appears you garage wall is floating...

Michael - it appears you garage wall is floating on air with no visible means of support?
Forum: RV General Discussion/News 09-26-2021, 03:57 PM
Replies: 22
Views: 4,979
Posted By AlexPeterson
Bowstring Airport MN

Flew to Bowstring airport, 9Y0, in northern MN. The strip is just on the east side of Bowstring Lake, seen off my wing in the first picture. They had a 3 day fly-in/camp-in this weekend. Many of...
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