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Search: Posts Made By: lr172
Forum: Painting your RV Today, 06:45 AM
Replies: 9
Views: 220
Posted By lr172
It must have been some mental transfer when I...

It must have been some mental transfer when I drove through Estes Park a couple years ago. My son got married at the YMCA in the park there. He lives in Denver.

Larry
Forum: Interiors Today, 06:24 AM
Replies: 6
Views: 301
Posted By lr172
If you don't find either the letter C inside a...

If you don't find either the letter C inside a circle or the words "copyright" it is NOT protected work. US trademark law requires markings on all copyrighted work. Just because someone created...
Forum: Traditional Aircraft Engines Today, 06:19 AM
Replies: 2
Views: 160
Posted By lr172
They have been using two clamps per line for...

They have been using two clamps per line for quite some time, so the SB is just to insure two are there. Only double if your engine only has 1 per line, as was the standard some time ago.

Larry
Forum: Electrical Systems Today, 06:00 AM
Replies: 2
Views: 284
Posted By lr172
On the 10, I used connectors for everything on...

On the 10, I used connectors for everything on the removeable panel so it could come out easy. However, I only used lengthy loops on the MFD's and G5. Once those are out, you can get your hands in...
Forum: Painting your RV Yesterday, 10:52 AM
Replies: 9
Views: 220
Posted By lr172
ALWAYS clean before scuffing, else you just push...

ALWAYS clean before scuffing, else you just push the debris deeper into the paint. Cleaning will be a bit tougher than normal, as the rattle can enamel will come off with the stronger solvents. I...
Forum: Alternative Engines Yesterday, 06:31 AM
Replies: 66
Views: 7,233
Posted By lr172
With the big bore Lyc's, we are getting good fuel...

With the big bore Lyc's, we are getting good fuel economy by running lean. These engines are turning low RPMs, so easy to get very lean. In the 10, I am cruising mostly at 50-75* LOP, which is...
Forum: RV General Discussion/News 06-22-2022, 07:50 AM
Replies: 2
Views: 139
Posted By lr172
Greg designed the AP around his 6 and all of the...

Greg designed the AP around his 6 and all of the PID settings at 100 (his version of neutral) are considered baseline for that model. I would start there. The GRT does take some work to dial in and...
Forum: RV Photo/Video URLs 06-21-2022, 10:56 AM
Replies: 9
Views: 426
Posted By lr172
My hanger neighbor does A LOT of air photography....

My hanger neighbor does A LOT of air photography. He just opens the window on the 172:D If you are serious about it, it might make sense to build a small opening in the canopy that can be open and...
Forum: RV General Discussion/News 06-21-2022, 10:47 AM
Replies: 1
Views: 175
Posted By lr172
You can make one. Most of the thermocouples just...

You can make one. Most of the thermocouples just solder the two J or K wires together and to the metal probe. Different approaches for the grounded and non-grounded varieties, I believe. I suspect...
Forum: RV Building Tips/Techniques 06-21-2022, 10:42 AM
Replies: 2
Views: 323
Posted By lr172
I would make or buy a 1" split tube/flange in SS....

I would make or buy a 1" split tube/flange in SS. I cover the tube opening with firesleeve and a SS clamp at the wire exit, which I think is good enough, but some prefer to fill the tube with 2000*...
Forum: Alternative Engines 06-21-2022, 10:36 AM
Replies: 66
Views: 7,233
Posted By lr172
I wouldn't expect you could beat the lyc BSFC...

I wouldn't expect you could beat the lyc BSFC numbers, but in the end, the lower acquisition, parts and overhaul costs will more than offset a few BSFC points.
Forum: Alternative Engines 06-21-2022, 09:22 AM
Replies: 66
Views: 7,233
Posted By lr172
I have never really tracked percentage power at...

I have never really tracked percentage power at cruise. I cruise at 165 KTAS in the 10 (IO-540) at around 10.5 GPH at 8-9K. I believe the power is in the 60% range, maybe less. That would be...
Forum: Alternative Engines 06-21-2022, 06:55 AM
Replies: 66
Views: 7,233
Posted By lr172
200HP out of a 60CI engine is impressive! Do you...

200HP out of a 60CI engine is impressive! Do you know BSFC at 150HP?
Forum: RV General Discussion/News 06-21-2022, 06:37 AM
Replies: 27
Views: 1,994
Posted By lr172
On a nice weekend day, there is usually A LOT of...

On a nice weekend day, there is usually A LOT of traffic under the 3K and 4K rings due west of ORD. Much more traffic than the lake shore route. The problem with the latter is that most everyone is...
Forum: RV General Discussion/News 06-21-2022, 06:23 AM
Replies: 27
Views: 1,994
Posted By lr172
We had a sailboat on the lake so paid attention...

We had a sailboat on the lake so paid attention to the stuff. water temps did not get above 40 untill well into May. Time to loss of consciousness at 40 is around 10 minutes. Don't recall when...
Forum: VAF Classifieds (posts in here deleted after 30 days) 06-21-2022, 06:19 AM
Replies: 7
Views: 476
Posted By lr172
I also have a new in the box AOA pro, so reach...

I also have a new in the box AOA pro, so reach out if you cannot buy the one posted here.

Larry
Forum: Alternative Engines 06-20-2022, 01:08 PM
Replies: 66
Views: 7,233
Posted By lr172
Yes, I inadvertantly combined the concepts. ...

Yes, I inadvertantly combined the concepts. Still relative though. Vno is just the speed at which the 50 FPS vertical gust can create structural damage by exceeding the wings G load rating. Va is...
Forum: Alternative Engines 06-20-2022, 11:26 AM
Replies: 66
Views: 7,233
Posted By lr172
Vno IS related to structural integrity. The...

Vno IS related to structural integrity. The concept is that a vertical gust can create G loading beyond the capacity of the plane. Vno is a limit whereby below it, a 50 FPS vertical gust (FAA...
Forum: Alternative Engines 06-20-2022, 07:46 AM
Replies: 66
Views: 7,233
Posted By lr172
Let's limit the fear mongering and get the facts...

Let's limit the fear mongering and get the facts straight. What is it that you are calling max cruise speed, as that is not a std aviation term? If you are referring to Vno, which is NOT a max...
Forum: Temp / Test / Misc. (posts deleted after 2 weeks) 06-20-2022, 07:22 AM
Replies: 32
Views: 4,256
Posted By lr172
Yes. Always 12v on one side of the coil that...

Yes. Always 12v on one side of the coil that moves the contactor. The other side of that coil is the #8 screw post on the side. Whenever that post gets a ground, the contactor closes and 12v flows...
Forum: RV General Discussion/News 06-20-2022, 06:48 AM
Replies: 27
Views: 1,994
Posted By lr172
I am Chicago based and WILL NOT fly over the...

I am Chicago based and WILL NOT fly over the lake, at least beyond glide range. First, from my reading most low wing fixed gear planes will flip when landing in water. I speculate that they fill...
Forum: Temp / Test / Misc. (posts deleted after 2 weeks) 06-19-2022, 07:38 AM
Replies: 32
Views: 4,256
Posted By lr172
It may be an easier fix to just buy a roll of 18...

It may be an easier fix to just buy a roll of 18 gauge wire from the hardware store and run it from the contactor to the cockpit and fabricate a method to ground it somewhere. THis will get you home...
Forum: Temp / Test / Misc. (posts deleted after 2 weeks) 06-19-2022, 07:27 AM
Replies: 32
Views: 4,256
Posted By lr172
The break in the wire will NOT be near the...

The break in the wire will NOT be near the contactor. It will be near a moving canopy part. REmember. the canopy in the closed position is currently the only thing that is providing a ground path...
Forum: Temp / Test / Misc. (posts deleted after 2 weeks) 06-19-2022, 07:22 AM
Replies: 32
Views: 4,256
Posted By lr172
The contactor has a strong spring that requires a...

The contactor has a strong spring that requires a full amp of current to move. I am confident that the contactor is not rattling closed from the canopy movement. If that were the case, you would be...
Forum: Temp / Test / Misc. (posts deleted after 2 weeks) 06-19-2022, 07:08 AM
Replies: 32
Views: 4,256
Posted By lr172
Know NOTHING about 12's. However, I assume it...

Know NOTHING about 12's. However, I assume it has a master contactor just like all the others. The contactor switches ALL power to the ship and is activated by applying a ground to its control...
Forum: RV General Discussion/News 06-18-2022, 10:41 AM
Replies: 15
Views: 1,184
Posted By lr172
I used the left over trailing edge wedge on the...

I used the left over trailing edge wedge on the 10. Just fill the holes with filler, paint and adhere with RTV. It is very small and un noticeable. Need a longer piece, but cant even tell t is...
Forum: Alternative Engines 06-17-2022, 11:36 AM
Replies: 42
Views: 3,518
Posted By lr172
You may be right. I was afraid that the covid...

You may be right. I was afraid that the covid situation just pulled future demand into today, creating the current bulge and fear demand will fall off a cliff once the recession takes hold. Time...
Forum: Alternative Engines 06-17-2022, 10:28 AM
Replies: 42
Views: 3,518
Posted By lr172
I don't think anyone has really analyzed whether...

I don't think anyone has really analyzed whether or not the current exploding experimental market is an anomaly or a trend. If I were lycoming or any other manufacturer, I would think long and hard...
Forum: RV-10 06-17-2022, 07:04 AM
Replies: 4
Views: 524
Posted By lr172
It wouldn't. The 320 has one EI and one mag with...

It wouldn't.

The 320 has one EI and one mag with the EI plugs on top. It doesn't really matter. However, if you run rich a lot and have plug fouling issues, I would put the auto plugs on the...
Forum: RV-10 06-15-2022, 12:20 PM
Replies: 2
Views: 581
Posted By lr172
Sorry, but street sign material in 1" flat stock...

Sorry, but street sign material in 1" flat stock is NOT going to hold the rudder pedals in any real wind. The rudder pedals get a LOT of force in a serious blow as the 10 has a LARGE rudder. I made...
Forum: Electronic Ignition Systems 06-15-2022, 12:06 PM
Replies: 48
Views: 7,625
Posted By lr172
Sorry, but that is just poor design engineering. ...

Sorry, but that is just poor design engineering. In the auto world all engine electronics work down to 8.5-9 volts in order to deal with starter draw on a weak battery. I remember SDS posting that...
Forum: Electronic Ignition Systems 06-15-2022, 11:54 AM
Replies: 48
Views: 7,625
Posted By lr172
I am a believer in the fuel efficiency benefits...

I am a believer in the fuel efficiency benefits of EI, with proper advance, in cruise. But just do not get the fascination with Pmags. 100 hour inspections, $500 bearing replacements, automatic...
Forum: RV-10 06-15-2022, 10:54 AM
Replies: 3
Views: 565
Posted By lr172
while that will do well holding the ailerons, I...

while that will do well holding the ailerons, I WOULD NOT trust a 3/16 steel rod of that length to handle the elevator in a strong blow. If it is 1/8", you stand no chance of it not bending. What...
Forum: RV-6/6A 06-15-2022, 10:47 AM
Replies: 5
Views: 429
Posted By lr172
definitely no need to have the wings on for this....

definitely no need to have the wings on for this. I installed it before the top skin also.

Larry
Forum: RV-10 06-15-2022, 10:45 AM
Replies: 23
Views: 1,535
Posted By lr172
same here. You can always add layers of glass or...

same here. You can always add layers of glass or flox or remove material later.

Larry
Forum: RV-10 06-15-2022, 10:39 AM
Replies: 17
Views: 3,032
Posted By lr172
The new motor has a position sensor built in. ...

The new motor has a position sensor built in. Therefore you can wire it up to your EFIS and do flaps manually or get something like the gad27 to do it automatically. I have non auto electric flaps...
Forum: RV General Discussion/News 06-14-2022, 01:19 PM
Replies: 34
Views: 2,102
Posted By lr172
congrats you'll love it jsut the same. I too was...

congrats you'll love it jsut the same. I too was surprised at the Mack truck feel compared to the 6. To be fair, I think it is the 6 being so good and not the 10 being so bad. To this day, I still...
Forum: Electronic Ignition Systems 06-13-2022, 08:02 AM
Replies: 13
Views: 917
Posted By lr172
as long as you go sparingly, there is no issue. ...

as long as you go sparingly, there is no issue. Keep it on the threads only. There is plenty of uncoated area at the base and therefore resistance in the threads is no issue if you insure that the...
Forum: RV General Discussion/News 06-13-2022, 07:35 AM
Replies: 10
Views: 997
Posted By lr172
My son got his PPL in the 6A last summer. The...

My son got his PPL in the 6A last summer. The key is finding an instructor that can grasp the concept of forcing the student to make landings with the nose up and not letting it slam down after the...
Forum: RV-14 06-13-2022, 07:15 AM
Replies: 36
Views: 3,308
Posted By lr172
MMO was designed around WWII as a lead scavenging...

MMO was designed around WWII as a lead scavenging agent and was sold in 55 gallon drums to the military for mixing with Avgas in radial engines. Can't confirm that it works, only that it was...
Forum: RV-14 06-13-2022, 07:12 AM
Replies: 36
Views: 3,308
Posted By lr172
Yours and the other posters experience points to...

Yours and the other posters experience points to a conclusion opposite of Mike's. Your hottest running cylinder was the one with excessive build up. Given that experience, am surprised you decided...
Forum: Traditional Aircraft Engines 06-13-2022, 07:07 AM
Replies: 20
Views: 2,636
Posted By lr172
+1 Changing compression is like changing the...

+1

Changing compression is like changing the amperage capacity of an alternator. Not something requiring flight testing or affecting flight characteristics. Phase I is for changes that affect...
Forum: RV Ongoing Maintenance Issues 06-13-2022, 06:41 AM
Replies: 14
Views: 1,066
Posted By lr172
I had a similar challenge on the 10. I used...

I had a similar challenge on the 10. I used silicone hose to get to the down tube, but couldn't find the elbows I needed (can't get much bending in that type of hose) I used a bit of 3/4" copper...
Forum: Traditional Aircraft Engines 06-12-2022, 11:11 AM
Replies: 20
Views: 2,636
Posted By lr172
Stuck intake valves are pretty uncommon. The...

Stuck intake valves are pretty uncommon. The fact that you had one, as well as another broken one, I suspect someone left the valve guides too tight. They are installed undersized and reamed to...
Forum: Electronic Ignition Systems 06-12-2022, 11:06 AM
Replies: 13
Views: 917
Posted By lr172
I pull off the tips and use a drop of red...

I pull off the tips and use a drop of red loctite. Never had them loosn that way.

Larry
Forum: RV-10 06-12-2022, 06:29 AM
Replies: 10
Views: 1,102
Posted By lr172
In my experience, if you lift the nose off during...

In my experience, if you lift the nose off during T/O with any amount of yawing and the breakout force is correct, the wheel will stay in that slightly turned postion and force yawing. A good stab...
Forum: RV-10 06-11-2022, 10:32 AM
Replies: 6
Views: 404
Posted By lr172
What do you hope to achieve with this. Not a...

What do you hope to achieve with this. Not a whole bunch of sound coming through the doors. Firewall and floors are a different story, but no real way to block sound without toxic fumes during a...
Forum: RV-10 06-11-2022, 10:27 AM
Replies: 10
Views: 1,526
Posted By lr172
i have no log or pics. However, I posted about...

i have no log or pics. However, I posted about clearances and optimum bulb compression. I used Ivans clearance #'s but they didn't work for me.

Larry
Forum: RV Ongoing Maintenance Issues 06-11-2022, 06:40 AM
Replies: 12
Views: 1,174
Posted By lr172
If you are using a ford type VR, the ground comes...

If you are using a ford type VR, the ground comes from the case, not a wire. You also need to trace the sense wire all the way back to the bus. I had this problem and it turned out to be a screw...
Forum: RV Building Tips/Techniques 06-11-2022, 06:27 AM
Replies: 16
Views: 1,593
Posted By lr172
I would NOT try to flatten it. You are likely to...

I would NOT try to flatten it. You are likely to get wavyness around the area next to it and this is not something you want on a trailing edge. There is a real art to shrinking and stretching...
Forum: Glass Cockpit 06-11-2022, 06:15 AM
Replies: 5
Views: 489
Posted By lr172
I believe that there is no A spec for the female...

I believe that there is no A spec for the female fitting. On the male side, the NPTA fitting is the same basic thread design as the NPT with minor differences. Can't remember the details, but think...
Forum: Traditional Aircraft Engines 06-11-2022, 05:57 AM
Replies: 8
Views: 936
Posted By lr172
At aroiund 1200 RPM, the mixture is mostly...

At aroiund 1200 RPM, the mixture is mostly controlled by the dedicated idle mixture circuit. By 1000 RPM, it is fully controlled by the idle circuit. First, be sure that the spring is still on the...
Forum: RV Ongoing Maintenance Issues 06-10-2022, 10:45 AM
Replies: 12
Views: 1,174
Posted By lr172
The most common cause of over voltage with an...

The most common cause of over voltage with an externally regulated alternator is excess resistance on either the voltage sense feed (A terminal) or the ground. This causes the regulator to falsely...
Forum: RV General Discussion/News 06-10-2022, 07:44 AM
Replies: 12
Views: 1,605
Posted By lr172
That implies an issue with the flaps. Read my...

That implies an issue with the flaps. Read my post above and start by insuring the flaps are hard against the spar in the up position. Best to re-read the plans for doing this. This is not...
Forum: RV-14 06-09-2022, 11:35 AM
Replies: 36
Views: 3,308
Posted By lr172
Mikes logic here is that lead is found with...

Mikes logic here is that lead is found with carbon in the build up, therefore it must be coming from the fuel. Unfounded supposition IMHO. Your oil has disspersnts that hold debris in suspension. ...
Forum: RV-14 06-09-2022, 07:34 AM
Replies: 36
Views: 3,308
Posted By lr172
In most engine applications, valves get...

In most engine applications, valves get supplemental cooling with oil flow. Lycoming has VERY low oil flow through the pushrod relative to most all other engines. The oil comes from the hydraulic...
Forum: Safety 06-09-2022, 07:23 AM
Replies: 17
Views: 1,370
Posted By lr172
I had the uncommon cataract variety that appears...

I had the uncommon cataract variety that appears at a younger age and had a lens replaced in the right eye. I went the traditional lens route after some research. It seemed the risk of not being...
Forum: RV General Discussion/News 06-09-2022, 06:57 AM
Replies: 12
Views: 1,605
Posted By lr172
while having the ball out will cause a bit of...

while having the ball out will cause a bit of Aileron deflection, 1/4" seems excessive for either that or weight distribution. You also didn't answer the question about the left aileron being down a...
Forum: Electronic Ignition Systems 06-08-2022, 01:11 PM
Replies: 13
Views: 917
Posted By lr172
I run NGK BR8ES and DO NOT replace every year. I...

I run NGK BR8ES and DO NOT replace every year. I replace as they wear. No need to replace after 50 - 100 hours. They will last much longer than that. , just check the gap annually. Large gaps...
Forum: Electronic Ignition Systems 06-08-2022, 12:59 PM
Replies: 13
Views: 917
Posted By lr172
Incorrect. Pretty much any time you are at peak...

Incorrect.

Pretty much any time you are at peak EGT or leaner, you benefit from advance greater than 25. The leaner you are, the more the additional advance is required for optimum power. Lower...
Forum: RV General Discussion/News 06-08-2022, 10:29 AM
Replies: 25
Views: 1,686
Posted By lr172
I have simple stick on sump heaters on both...

I have simple stick on sump heaters on both planes (2 on the 540) and they work very well if you close up the cowl adn give them a couple hours to do their thing.

Larry
Forum: Glass Cockpit 06-08-2022, 10:26 AM
Replies: 25
Views: 2,096
Posted By lr172
any plans to offer this for the 23?

any plans to offer this for the 23?
Forum: RV General Discussion/News 06-08-2022, 07:05 AM
Replies: 12
Views: 1,605
Posted By lr172
FIrst, is the left aileron down a 1/4" from the...

FIrst, is the left aileron down a 1/4" from the flap? Ailerons always find a neutral position. If it is not, the issue could be the flaps not both at a true -3. If it is, you may have a heavy wing...
Forum: RV General Discussion/News 06-08-2022, 06:48 AM
Replies: 33
Views: 11,277
Posted By lr172
I have an advance table plus a knob that gives...

I have an advance table plus a knob that gives -4/+5 from the table. I don't think that I have gone any higher than 35/36. It really depends upon mixture. leaner mixtures need more advance. The...
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