VansAirForceForums  
Home > VansAirForceForums

-POSTING RULES
-Advertise in here!
- Today's Posts | Insert Pics

Keep VAF Going
Donate methods

Point your
camera app here
to donate fast.


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

Showing results 1 to 64 of 500
Search took 0.06 seconds.
Search: Posts Made By: lr172
Forum: RV Ongoing Maintenance Issues Yesterday, 11:31 AM
Replies: 14
Views: 490
Posted By lr172
I think it is just a very high stress area with...

I think it is just a very high stress area with huge centrifugal forces. I still lose one screw in the spinner on my 6 every 100 or so hours; Always from the smaller, more foreward bulkhead.
Forum: Electronic Ignition Systems Yesterday, 11:25 AM
Replies: 244
Views: 86,680
Posted By lr172
I think there may be some variance in where the...

I think there may be some variance in where the top and bottom plugs are. It could also be that the mixture concentrations are different from top to bottom and this causes differences in the flame...
Forum: RV-12/RV-12iS Yesterday, 09:42 AM
Replies: 27
Views: 2,352
Posted By lr172
It is not really age discrimination if the...

It is not really age discrimination if the actuarial tables show greater accident frequency once a pilot hits a certain age. No different than that crazy insurance rates we see when our 16 year...
Forum: Electronic Ignition Systems Yesterday, 08:17 AM
Replies: 244
Views: 86,680
Posted By lr172
Sorry, but this is wrong. The amount of RPM drop...

Sorry, but this is wrong.

The amount of RPM drop during a mag check is directly related to WHERE the spark occurs relative to TDC on the one running ignition compared to where it occurs on both...
Forum: RV Ongoing Maintenance Issues Yesterday, 08:05 AM
Replies: 15
Views: 1,828
Posted By lr172
A shaving of that size and shape simply can't...

A shaving of that size and shape simply can't make it from the combusion chamber to the oil pan at least not while maintining it's shape. Something similar to what the OP posted must have come from...
Forum: RV-12/RV-12iS Yesterday, 08:00 AM
Replies: 27
Views: 2,352
Posted By lr172
I agree. I had my son get his PPL in my 6A last...

I agree. I had my son get his PPL in my 6A last year. I was paying $900 for full coverage and they wanted $4500 after adding him as a student. I ended up going with liability only for $1700. I...
Forum: Electronic Ignition Systems 05-16-2022, 11:24 AM
Replies: 244
Views: 86,680
Posted By lr172
This would be my guess. As long as power is not...

This would be my guess. As long as power is not cut to the CPU, the s/w should be able to maintain the crank position and a s/w change should shorten ramp up with just a p lead on/off cycle,...
Forum: Electronic Ignition Systems 05-16-2022, 11:20 AM
Replies: 244
Views: 86,680
Posted By lr172
I have never tried it, but speculate that it may...

I have never tried it, but speculate that it may not work. The clamp is measuring inductance from when the energy field collapses. The primary purpose of shielding is to capture this and drain it...
Forum: Electrical Systems 05-14-2022, 07:08 AM
Replies: 10
Views: 587
Posted By lr172
It would be my assumption that applying 12VDC...

It would be my assumption that applying 12VDC (likely wired from the avionics master switch) to the avionics master pin would force the unit to turn on. However, I have never installed one. If the...
Forum: Electronic Ignition Systems 05-14-2022, 06:56 AM
Replies: 244
Views: 86,680
Posted By lr172
re-read your original post and missed a couple...

re-read your original post and missed a couple things. If you get stumbles or backfires, something is wrong and likely beyond basic timing. If it is just timing issues causing backfires, it will be...
Forum: Electronic Ignition Systems 05-13-2022, 07:49 AM
Replies: 244
Views: 86,680
Posted By lr172
RPM drops should be similar if both timing...

RPM drops should be similar if both timing advances are equal. Therefore, with a 50 RPM spread between the mag and the surefly, I would speculate that they are not the same. Have you checked the...
Forum: Electrical Systems 05-13-2022, 07:06 AM
Replies: 18
Views: 966
Posted By lr172
I thought it was from a late 80's civic. Here is...

I thought it was from a late 80's civic. Here is an interchange list. https://www.ebay.com/itm/254898487444 I think it was 021000-5640

I do have a remy 14158 on one of the planes and it has gone...
Forum: Painting your RV 05-12-2022, 10:27 AM
Replies: 3
Views: 370
Posted By lr172
2 stage is base coat plus clear coat. Base coat...

2 stage is base coat plus clear coat. Base coat weighs almost nothing. Weight is in the primer and clear. Single stage mixes the pigments with the clear coat, eliminating the base coat. The fact...
Forum: RV General Discussion/News 05-12-2022, 08:16 AM
Replies: 10
Views: 572
Posted By lr172
+1 On my 6, I have one of those buttons for a...

+1

On my 6, I have one of those buttons for a GRT screen swap. I am surprised how often I inadvertently hit that button, especially in turbulence. I don't know about you, but I WOULD NOT want my...
Forum: Traditional Aircraft Engines 05-12-2022, 08:05 AM
Replies: 12
Views: 1,463
Posted By lr172
turbo normalized means it won't boost higher than...

turbo normalized means it won't boost higher than 30", which is what you get at take off from a sea level airport. Therefore, if you trust your 10:1 engine to not detonate at TO, it should be fine....
Forum: Electrical Systems 05-12-2022, 07:54 AM
Replies: 18
Views: 966
Posted By lr172
lester 14158. It is ext regulated, 45 amps and...

lester 14158. It is ext regulated, 45 amps and counter clockwise rotation (most auto applications are CW). You have to do some digging to find the ND part number for this alt. Once you do, you can...
Forum: RV General Discussion/News 05-12-2022, 07:26 AM
Replies: 20
Views: 1,980
Posted By lr172
It is most definitely not required by law and can...

It is most definitely not required by law and can be dangerous to the unaware on low wing airplanes. In non gravity feed airplanes, if the selector is set to both, the engine will stop running once...
Forum: RV-8/8A 05-10-2022, 11:10 AM
Replies: 5
Views: 493
Posted By lr172
excluding the environmental impacts, alodine is...

excluding the environmental impacts, alodine is great stuff with no downside. It inhibits corrosion and is also an adhesion promoter for the paint. That said, proper prep with an epoxy primer...
Forum: Electrical Systems 05-10-2022, 11:07 AM
Replies: 18
Views: 966
Posted By lr172
I like the denso externally regulated alt's with...

I like the denso externally regulated alt's with either a B&C regulator or other quality aftermarket regulator. 800 uneventfull hours with this on the 6 and 250 on the 10. I would not buy an after...
Forum: RV General Discussion/News 05-10-2022, 07:44 AM
Replies: 10
Views: 608
Posted By lr172
can't help on the aerodynamics, but I found that...

can't help on the aerodynamics, but I found that the TE shape didn't influence my heavy wing much. I had to move the Aileron up and down at the hinge for a meaningful change in behavior. I did,...
Forum: Traditional Aircraft Engines 05-09-2022, 10:48 AM
Replies: 16
Views: 1,234
Posted By lr172
First, a lycoming does not have cyl hold down...

First, a lycoming does not have cyl hold down bolts. There are studs in the case and nuts are used to hold the cylinders on. No one replaces these at overhaul, nor does Lyc require it. Also, all...
Forum: Traditional Aircraft Engines 05-09-2022, 07:32 AM
Replies: 16
Views: 1,234
Posted By lr172
I have reused cyl hold down nuts. If they pass a...

I have reused cyl hold down nuts. If they pass a visual inspection, I don't believe they are a required or even recommended replacement. Let Divco or whoever is overhauling your case decide on the...
Forum: RV General Discussion/News 05-07-2022, 06:16 AM
Replies: 15
Views: 990
Posted By lr172
If I had a partner, I would set up a plane fund...

If I had a partner, I would set up a plane fund with reserves used for fuel and maintnence-funded equal by partners on a regular basis) and fuel would be paid for by the fund - separate card. Pilots...
Forum: RV Ongoing Maintenance Issues 05-06-2022, 10:37 AM
Replies: 22
Views: 1,815
Posted By lr172
what is the idle speed at full operating temp? ...

what is the idle speed at full operating temp? The fact that ti does 700 RPM before take off doesn't mean it will still be that speed after heat soaking. If the speed is above 700 at full operating...
Forum: RV Ongoing Maintenance Issues 05-05-2022, 11:00 AM
Replies: 23
Views: 1,899
Posted By lr172
light bulbs going off now. I assume this is why...

light bulbs going off now. I assume this is why vacuum tubes were created before silicone chips came into being.
Forum: RV Ongoing Maintenance Issues 05-05-2022, 08:10 AM
Replies: 23
Views: 1,899
Posted By lr172
Interesting. I had read that the pressurized...

Interesting. I had read that the pressurized mags were in place to increase the ambient pressures in the mag internals in order to improve sparking ability that was degraded in thinner air. I have...
Forum: VAF Classifieds (posts in here deleted after 30 days) 05-05-2022, 08:02 AM
Replies: 1
Views: 267
Posted By lr172
I do. Brand new in the box AOA Pro system. It...

I do. Brand new in the box AOA Pro system. It came with the 10 project I bought but never installed it. PM coming.

Larry
Forum: Traditional Aircraft Engines 05-05-2022, 07:41 AM
Replies: 21
Views: 1,543
Posted By lr172
Improper gearing (i.e. high output/low RPM with...

Improper gearing (i.e. high output/low RPM with short gears) is hard on the engine mechanical components and is also more detonation prone.

Hop on you bike and set up the gearing for a good...
Forum: Traditional Aircraft Engines 05-05-2022, 07:12 AM
Replies: 2
Views: 230
Posted By lr172
I wouldn't go any higher unless using grade 8 or...

I wouldn't go any higher unless using grade 8 or 9 bolts, and in that case looking at the specs for those bolts. That table is based upon milspec bolts (have no idea where these bolts sit in...
Forum: Traditional Aircraft Engines 05-05-2022, 06:58 AM
Replies: 12
Views: 866
Posted By lr172
Studs do not need the end inserted into the...

Studs do not need the end inserted into the threaded hole tight in order to hold properly. There is no requirement for this tight fit in order to obtain the rated strength of the stud. In...
Forum: Glass Cockpit 05-04-2022, 11:23 AM
Replies: 9
Views: 1,106
Posted By lr172
Thanks. Didn't realize that was possible.

Thanks. Didn't realize that was possible.
Forum: Safety 05-04-2022, 11:09 AM
Replies: 10
Views: 1,528
Posted By lr172
You generally can't get a tornado without lift,...

You generally can't get a tornado without lift, so the radar will look like T storms. However, there is nothing really unique on moisture level radar (nexrad) that will separate a t strorm echo from...
Forum: Painting your RV 05-04-2022, 10:58 AM
Replies: 2
Views: 388
Posted By lr172
I don't think any professional painter would...

I don't think any professional painter would accept prep work done by the owner, outside of the stuff mentioned above. No painter will warranty his work unless he does the prep. Painting is easy. ...
Forum: RV-10 05-04-2022, 10:46 AM
Replies: 21
Views: 1,675
Posted By lr172
I lean to 150 ROP during the climb and have no...

I lean to 150 ROP during the climb and have no issues keeping CHTs under 400 in the summer in my 10. Better to address the other issues before recommending extra fuel to solve the problem.

That...
Forum: RV Ongoing Maintenance Issues 05-04-2022, 07:44 AM
Replies: 23
Views: 1,899
Posted By lr172
The OPs post is a reason in itself to do them. ...

The OPs post is a reason in itself to do them. In flight mag checks will sometimes show problems that don't manifest in ground tests. Both the additional RPM and the altitude can intensify...
Forum: RV Ongoing Maintenance Issues 05-04-2022, 07:39 AM
Replies: 23
Views: 1,899
Posted By lr172
It could be. Sometimes when coils go bad, they...

It could be. Sometimes when coils go bad, they only show the failure once the composite shell expands from heat. The long copper wires are encapsulated in that shell. The fact that it is cycling...
Forum: Traditional Aircraft Engines 05-04-2022, 07:31 AM
Replies: 22
Views: 1,627
Posted By lr172
Could you elaborate on this for me? I have...

Could you elaborate on this for me? I have always been under the impression that the hotter the piston gets, the tighter/smaller the compression ring gap will become. Every tech sheet that I have...
Forum: Glass Cockpit 05-04-2022, 07:17 AM
Replies: 9
Views: 1,106
Posted By lr172
Can the G3xpert chime in here with a date range...

Can the G3xpert chime in here with a date range that applies to the manufacture date of the units included in this recall?

It would be nice if these are more modern units that we can avoid pulling...
Forum: Traditional Aircraft Engines 05-04-2022, 07:04 AM
Replies: 21
Views: 1,543
Posted By lr172
It is my belief that the old radial engines...

It is my belief that the old radial engines suffered problems when lugging or heavily loaded (think trying to accelerate in a car without downshifting) and this is where the over square stuff came...
Forum: Safety 05-03-2022, 07:07 AM
Replies: 10
Views: 1,528
Posted By lr172
We had one here in the Chicago area on Saturday. ...

We had one here in the Chicago area on Saturday. Radar is no help in identifying tornadic activity. That is all about shear and rotation aloft. There are tools that show this kind of data. ...
Forum: RV General Discussion/News 05-03-2022, 06:55 AM
Replies: 35
Views: 3,404
Posted By lr172
I disagree. Full rudder deflection during a slip...

I disagree. Full rudder deflection during a slip on final is 35* of deflection plus the crab angle into a 100 MPH wind. Not the same as a wind 90* to the tail surface, but surface winds are rarely...
Forum: Job Board 05-02-2022, 11:03 AM
Replies: 7
Views: 851
Posted By lr172
I designed and GC'ed our first home. I was able...

I designed and GC'ed our first home. I was able to find a structural engineer to review my drawings. Once I added all of his info into the blue prints, he signed it and put on his stamp. I suspect...
Forum: Electronic Ignition Systems 05-02-2022, 07:11 AM
Replies: 20
Views: 1,537
Posted By lr172
I don't know anything about surefly, but I...

I don't know anything about surefly, but I strongly agree that any electronic device required to make the engine work SHOULD NOT be run through the master. The master contactor is there to provide a...
Forum: Traditional Aircraft Engines 05-01-2022, 11:15 AM
Replies: 5
Views: 552
Posted By lr172
how lean? Unlike an FI servo, the mixture...

how lean? Unlike an FI servo, the mixture adjustment on a carb sets total fuel flow, not a percentage of fuel needed based upon air flow. Therefore, if running lean of peak, you must richen the...
Forum: RV-10 04-30-2022, 08:23 AM
Replies: 28
Views: 2,353
Posted By lr172
I cut two pieces of F/G material from the excess...

I cut two pieces of F/G material from the excess cut off the door panels to size and fitted them in place with epoxy flox and faired with bondo. Only took a couple of hours and looks like factory...
Forum: Traditional Aircraft Engines 04-30-2022, 08:02 AM
Replies: 6
Views: 342
Posted By lr172
I prefer the other type of skytech starter, I...

I prefer the other type of skytech starter, I think it is NL or something like that. More robust and with a shear pin to break instead of the casting. Also no solenoid to go bad. I have over 800...
Forum: Traditional Aircraft Engines 04-28-2022, 11:13 AM
Replies: 12
Views: 1,463
Posted By lr172
I would do a turbo for two reasons. First, I...

I would do a turbo for two reasons. First, I believe it is easier to dial in for a safe level. Remember, you are going to really struggle with knock sensors that actually sense knocks on these...
Forum: RV General Discussion/News 04-28-2022, 07:26 AM
Replies: 5
Views: 327
Posted By lr172
If I remember correctly for the Artex, 9600 baud...

If I remember correctly for the Artex, 9600 baud means it is expecting aviation format data and 2400 baud means it is expecting NMEA format data. Be sure your GPS is sending data in aviation...
Forum: Propellers 04-24-2022, 07:39 AM
Replies: 15
Views: 1,435
Posted By lr172
With an FP prop, you will want closer to 2600 or...

With an FP prop, you will want closer to 2600 or 2700 at 10K' if the pitch is optimized for a happy medium between cruise and climb. Try going to full throttle at 8K and see how much RPM you get. ...
Forum: Fiberglass 04-23-2022, 07:26 AM
Replies: 4
Views: 599
Posted By lr172
Just about every 2K primer, unless sprayed too...

Just about every 2K primer, unless sprayed too thin will protect the covered material from UV rays. The issues is that most primers do not have UV inhibitors, like the top coat materials have, and...
Forum: Tools 04-18-2022, 12:02 PM
Replies: 25
Views: 2,073
Posted By lr172
cheap and easy is boiled linseed oil. Natures...

cheap and easy is boiled linseed oil. Natures corrossion inhibitor. Shoiuld last longer than wax and more easily removed than paint.
Forum: RV Ongoing Maintenance Issues 04-18-2022, 07:18 AM
Replies: 34
Views: 2,354
Posted By lr172
Probably the same source that has said for...

Probably the same source that has said for decades that you can't run lean of peak and oil must be at 100* for take off.

For decades they have been telling pilots to prime a carb by pumping the...
Forum: Primers 04-16-2022, 08:25 AM
Replies: 4
Views: 378
Posted By lr172
I have used SPI products on 10 different paint...

I have used SPI products on 10 different paint jobs. Both planes also have their universal clear; also arguably one of the best clears for amateurs without spray booths (it is specifically designed...
Forum: RV General Discussion/News 04-12-2022, 07:08 AM
Replies: 7
Views: 990
Posted By lr172
My attorneys guidance was to leave cars, boats,...

My attorneys guidance was to leave cars, boats, planes out of the trust. Those can get swept into the trust easilly without re-titling them with the trust name. Still no probate or will issues...
Forum: RV General Discussion/News 04-12-2022, 06:56 AM
Replies: 35
Views: 2,443
Posted By lr172
This is my experience also, on two planes.

This is my experience also, on two planes.
Forum: RV-4 04-11-2022, 07:21 AM
Replies: 3
Views: 665
Posted By lr172
I have welded (stick, mig, tig) on several modern...

I have welded (stick, mig, tig) on several modern cars with solid state computers with no issues. The key is good quality grounds in locations that keep the electrical flow contained within the...
Forum: RV Building Tips/Techniques 04-10-2022, 11:19 AM
Replies: 10
Views: 1,061
Posted By lr172
There is no alodine, it gets rinsed off. While...

There is no alodine, it gets rinsed off. While on the metal, it creates a chemical conversion process on the surface of the metal. What it converts to, I have no idea. Just know it is not...
Forum: GPS 04-09-2022, 10:49 AM
Replies: 41
Views: 7,905
Posted By lr172
I disagree. ILS is the only back up that we...

I disagree. ILS is the only back up that we have. VORs and NDBs are going away, except for limited enroute support. Many airports have dropped their VOR approaches eventhough the VOR supporting...
Forum: RV General Discussion/News 04-09-2022, 08:22 AM
Replies: 48
Views: 5,785
Posted By lr172
I don't think that changed the FAA's or the...

I don't think that changed the FAA's or the courts interpretation of how the flying is related to the compensation, outside the realm of flight instruction. The FAA has always stated that if the...
Forum: Traditional Aircraft Engines 04-09-2022, 08:01 AM
Replies: 9
Views: 837
Posted By lr172
While a good local mechanic is key to...

While a good local mechanic is key to diagnostics, I would think twice about using one for honing. I recommend sending the cylinders to an overhaul shop that has the proper sunnen honing machine. I...
Forum: RV-10 04-08-2022, 08:15 AM
Replies: 510
Views: 594,985
Posted By lr172
congrats Dave. Where are you based? My 10 is at...

congrats Dave. Where are you based? My 10 is at Schaumburg.

Larry
Forum: Electrical Systems 04-07-2022, 10:36 AM
Replies: 6
Views: 568
Posted By lr172
battery health should not impact the alternators...

battery health should not impact the alternators ability to hold the set voltage, unless it is so bad that it is maxing out the alternators output.

Possibly a bad VR in that Alternator or too much...
Forum: RV Building Tips/Techniques 04-07-2022, 07:22 AM
Replies: 17
Views: 1,494
Posted By lr172
While on the topic of science. Don't necessarily...

While on the topic of science. Don't necessarily expect changes in readings to represent leaks. Changes in atmospheric pressure and temperature will change the readings. Manometers are sensivity...
Forum: Traditional Aircraft Engines 04-07-2022, 07:04 AM
Replies: 5
Views: 589
Posted By lr172
I don't buy that and goes against everything that...

I don't buy that and goes against everything that I was taught about engines.

Engine oil is splashed on the cyl wall AND the piston bottom. The latter portions of oil are pulling a decent amount of...
Showing results 1 to 64 of 500

 
Forum Jump

All times are GMT -6. The time now is 04:02 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.