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Search: Posts Made By: Carl Froehlich
Forum: RV-8/8A Today, 03:16 PM
Replies: 7
Views: 216
Posted By Carl Froehlich
Agree that this is bucking bar damage. I...

Agree that this is bucking bar damage.

I recently started using a small tungsten bar for tight areas. It is real easy to get a dent using this type of bar. When ever you can use a larger (longer)...
Forum: Electrical Systems Today, 12:42 PM
Replies: 15
Views: 649
Posted By Carl Froehlich
This would be hard to do unless the avionics...

This would be hard to do unless the avionics relay is connected to the output side of the master solenoid, not the battery. So - this just shifts the single failure point from the avionics relay to...
Forum: Electrical Systems Today, 10:09 AM
Replies: 15
Views: 649
Posted By Carl Froehlich
There is a plethora of options

There are many relays that fit the bill. I use four of these:https://www.alliedelec.com/schneider-electric-magnecraft-92s7d22d-12/70185034/

I look for silver contacts and coil rating. I run #10...
Forum: Electrical Systems 12-07-2017, 05:34 PM
Replies: 2
Views: 442
Posted By Carl Froehlich
The short answer - yes. You want the aux battery...

The short answer - yes.

You want the aux battery to not discharge into whatever fault you had that forced you to rely on the aux battery to keep the engine running.

A lot of ways to keep an...
Forum: Electrical Systems 12-06-2017, 01:12 PM
Replies: 60
Views: 8,737
Posted By Carl Froehlich
Need a relay if you want the start switch on the stick

There is another consideration. Few if any stick grip switches can handle the current needed to operate the starter solenoid. On my first RV I started off with the bottom blue pinkie switch on the...
Forum: RV General Discussion/News 12-05-2017, 07:32 AM
Replies: 3
Views: 329
Posted By Carl Froehlich
Forum: Electrical Systems 12-04-2017, 02:13 PM
Replies: 60
Views: 8,737
Posted By Carl Froehlich
With a focus on IFR flight, I respectfully...

With a focus on IFR flight, I respectfully disagree with this statement. Twin engine aircraft (two alternators, one battery) have suffered total loss of power even though both engines (and both...
Forum: Electrical Systems 12-04-2017, 11:12 AM
Replies: 60
Views: 8,737
Posted By Carl Froehlich
Recommend you not put the starter button on the...

Recommend you not put the starter button on the stick. I did this in my first RV and quickly found how easy is was to bump it while the engine was running. It got disconnected and the other two RVs...
Forum: Traditional Aircraft Engines 12-03-2017, 05:36 PM
Replies: 17
Views: 1,333
Posted By Carl Froehlich
Are you starting with both pMags on? Carl

Are you starting with both pMags on?

Carl
Forum: Instrument Flight Rules 12-02-2017, 08:36 AM
Replies: 15
Views: 1,566
Posted By Carl Froehlich
Exactly correct. The GTN-650 I installed in the...

Exactly correct. The GTN-650 I installed in the RV-10 is the last piece of Garmin I’ll ever buy. The new RV-8 project will get the IFD540 to go with the dual SkyView install.

Carl
Forum: Safety 12-01-2017, 06:01 PM
Replies: 15
Views: 1,582
Posted By Carl Froehlich
Gary, I offer that your system demand exceeds...

Gary,

I offer that your system demand exceeds the capability of the Z-11 type power distribution scheme. Your engine must have power to keep running. Any single battery design fails to achieve a...
Forum: Glass Cockpit 11-29-2017, 03:52 PM
Replies: 12
Views: 1,019
Posted By Carl Froehlich
The short answer - install the magnetometer. If...

The short answer - install the magnetometer.

If you do not have another compass, you are not legal to fly.

Your comment on “this would give me back what I had before” is telling. What you had...
Forum: RV General Discussion/News 11-27-2017, 05:02 PM
Replies: 3
Views: 329
Posted By Carl Froehlich
PCU-5000X order form - how to fill out?

Looking for some help in filling out this form to order a PCU-5000X governor. I will be installing an a stock Van's IO-360-M1B engine and Hartzell BA prop.
Data needed:
- Governor Drive Ratio (I...
Forum: RV General Discussion/News 11-25-2017, 11:40 AM
Replies: 16
Views: 1,179
Posted By Carl Froehlich
I can only assume this add is to address the...

I can only assume this add is to address the known GTN-650 GPS RFI issues.

Carl
Forum: RV General Discussion/News 11-25-2017, 08:59 AM
Replies: 16
Views: 1,179
Posted By Carl Froehlich
Jim, I know I'll get flamed for saying this but...

Jim,

I know I'll get flamed for saying this but here goes. For the antennas we use this process is not required or desired. Air Force spook planes and such are a different consideration.

Use the...
Forum: Electrical Systems 11-24-2017, 12:12 PM
Replies: 15
Views: 925
Posted By Carl Froehlich
A better use of the ALT LIGHT connection

While this may work, and considering the duplicity of an alternator idiot light when most have full EMS systems, I offer a more practical use of the ALT LIGHT connection.

If you use DPDT switches...
Forum: RV-8/8A 11-24-2017, 08:15 AM
Replies: 7
Views: 794
Posted By Carl Froehlich
For the RV-10, you can use the James IO-540...

For the RV-10, you can use the James IO-540 plenum even though you do not use the James cowl - you will need however to do some glass work on the stock cowl to incorporate the round inlets. ...
Forum: RV-8/8A 11-23-2017, 03:25 PM
Replies: 7
Views: 794
Posted By Carl Froehlich
That is the first step of many - and the easiest...

That is the first step of many - and the easiest one.

I’ve seen a lot of high quality molds on VAF - I’m hopeful someone will let me pull another plenum out of theirs.

Carl
Forum: RV-8/8A 11-23-2017, 02:25 PM
Replies: 7
Views: 794
Posted By Carl Froehlich
Looking for a plenum mold

I know the work involved with creating a good plenum mold - so perhaps someone would be willing to let me borrow one.

I have the stock RV-8 cowl and the stock IO-360-M1B horizontal intake...
Forum: Electrical Systems 11-23-2017, 02:20 PM
Replies: 15
Views: 925
Posted By Carl Froehlich
The “ALT LIGHT” connection provideds ground when...

The “ALT LIGHT” connection provideds ground when the alternator is not running. It is at buss voltage when the alternator is running. The design allows for an old school light bulb to be connected...
Forum: RV General Discussion/News 11-23-2017, 01:16 PM
Replies: 11
Views: 842
Posted By Carl Froehlich
If you have the standard size holes in the wing...

If you have the standard size holes in the wing ribs that Van’s calls for (to install the nylon snap bushings), the holes are the perfect size for 1/2” plastic water pipe from the aviation department...
Forum: RV-10 11-22-2017, 01:31 PM
Replies: 11
Views: 786
Posted By Carl Froehlich
You may be able to get someone to come to you. ...

You may be able to get someone to come to you. Here at the airpark, we schedule 4 or more planes to get done the same day so the guy doing the check waives the travel charge.

Legally, you can label...
Forum: RV General Discussion/News 11-22-2017, 12:27 PM
Replies: 5
Views: 375
Posted By Carl Froehlich
Anyone running Lightspeed ignitions should have a...

Anyone running Lightspeed ignitions should have a spare coil, set of pre-made wires and a few NGK plugs on the “ready spare” shelf.

In my experience, these ignitions are sensitive to bad plugs and...
Forum: RV-14 11-21-2017, 10:57 AM
Replies: 15
Views: 1,446
Posted By Carl Froehlich
Not an issue for the SkyView ADAHRS

We used the stock RV-14 wing ADAHRS module bracket and the Dynon plate to stack one ADAHRS on top of the other. The system works perfectly.

Carl
Forum: RV General Discussion/News 11-20-2017, 08:27 AM
Replies: 33
Views: 2,311
Posted By Carl Froehlich
My 48’X48’ hangar houses an RV-10 and and RV-8,...

My 48’X48’ hangar houses an RV-10 and and RV-8, along with work tables, lawn tractors and such. It will fit three two seat RVs. While they all fit, you have to do a lot of plane moving to get the...
Forum: RV General Discussion/News 11-20-2017, 08:22 AM
Replies: 33
Views: 2,311
Posted By Carl Froehlich
Some thoughts from living with my 48’x48’ hangar...

Some thoughts from living with my 48’x48’ hangar these last 14 years:
- You cannot over insulate. My hangar as a 3’ poured concrete hip wall and 2x6 studs from that. The wall is R-19 and the...
Forum: RV-8/8A 11-16-2017, 12:24 PM
Replies: 6
Views: 1,245
Posted By Carl Froehlich
Electric seat heater recommendations?

Those using electric seat heaters for the RV-8 rear seat, what brands/models do you recommend?

Carl
Forum: RV-10 11-16-2017, 09:32 AM
Replies: 18
Views: 1,380
Posted By Carl Froehlich
Shoot fire! Good example of tenacity to believe...

Shoot fire! Good example of tenacity to believe your indications unless you prove them false.

Carl
Forum: RV General Discussion/News 11-15-2017, 08:23 AM
Replies: 6
Views: 543
Posted By Carl Froehlich
I installed this grip on two planes and will...

I installed this grip on two planes and will again on the current project.

I looked up the pivot you mentioned. As I read it the gain is you can rotate the grip 45 degrees, and even shift from...
Forum: Traditional Aircraft Engines 11-13-2017, 03:53 PM
Replies: 31
Views: 2,411
Posted By Carl Froehlich
End your pain and get a show special 320 engine...

End your pain and get a show special 320 engine and CS Hartzell prop from Van’s. It will run on non-ethanol premium fuel. Do yourself another favor and get the new deal from Van’s for the engine to...
Forum: Electronic Ignition Systems 11-11-2017, 08:23 AM
Replies: 3
Views: 355
Posted By Carl Froehlich
The Van’s tack uses a transducer (sender), not...

The Van’s tack uses a transducer (sender), not mag or pMag RPM outputs. The transducer screws into the engine tach sender on the auxiliary case.
Here is the part: ...
Forum: COMM 11-10-2017, 08:28 AM
Replies: 5
Views: 409
Posted By Carl Froehlich
I got a warning on my GX-60 about the battery. ...

I got a warning on my GX-60 about the battery. This is a 3vdc battery a little shorter than a AA that you can find at your local Battery Plus or similiar store.

Replacing it I wired a couple of...
Forum: Electrical Systems 11-09-2017, 12:27 PM
Replies: 55
Views: 9,148
Posted By Carl Froehlich
One consideration not mentioned - testing. At...

One consideration not mentioned - testing.

At some point you will want to turn off your alternator while flying to:
- Verify your panel still works (do this only VFR and keep a close eye on buss...
Forum: Glass Cockpit 11-08-2017, 09:10 AM
Replies: 10
Views: 1,071
Posted By Carl Froehlich
As already stated, adding a GTN-650 or better yet...

As already stated, adding a GTN-650 or better yet the IDF540 (you can get it for about the same price as the GTN-650) and you will have a minimal IFR bird. I offer however that single screen IFR is...
Forum: Electrical Systems 11-08-2017, 08:37 AM
Replies: 4
Views: 476
Posted By Carl Froehlich
I use this relay for my left and right vital buss...

I use this relay for my left and right vital buss feeds on a couple of planes (your Avionics #1 and #2): https://www.alliedelec.com/schneider-electric-magnecraft-92s7d22d-12/70185034/

There are...
Forum: RV-8/8A 11-08-2017, 07:53 AM
Replies: 5
Views: 673
Posted By Carl Froehlich
For me, yes. The new project will again just have...

For me, yes. The new project will again just have the two vents. Others may have different opinions.

Carl
Forum: Electrical Systems 11-07-2017, 12:21 PM
Replies: 46
Views: 3,425
Posted By Carl Froehlich
I talked to Dynon on this a couple of times. ...

I talked to Dynon on this a couple of times. They firmly state the SkyView system will not be damaged by buss voltage droop on engine start. That said I don’t have the same confidence on the very...
Forum: COMM 11-06-2017, 09:18 PM
Replies: 8
Views: 411
Posted By Carl Froehlich
Two things: - I had the exact same problem -...

Two things:
- I had the exact same problem - using the first generation of the AEROLED nav/strobes. Calling then they recommended a fix. I was able to eliminate 95% of the noise by putting an...
Forum: RV-10 11-06-2017, 09:09 AM
Replies: 14
Views: 1,362
Posted By Carl Froehlich
Gil, Build as you wish - I offer however that...

Gil,

Build as you wish - I offer however that there is little, if any measurable difference between a top and bottom mounted comm antenna on our airplanes while on the ground. If we are flying 747s...
Forum: RV-10 11-06-2017, 08:27 AM
Replies: 14
Views: 1,362
Posted By Carl Froehlich
Another consideration

The location shown in the photos of mounting a top antenna on an RV-10 happens to be a prime piece of real estate for mounting ADHARS modules. I made a small box with aluminum sides and fiberglass...
Forum: RV General Discussion/News 11-05-2017, 06:24 PM
Replies: 15
Views: 1,263
Posted By Carl Froehlich
As the builder you can assign any serial number...

As the builder you can assign any serial number you want when you register the plane. Some people use #1 for the first plane, their girlfriend’s measurement or whatever. I use the Van’s builder...
Forum: RV General Discussion/News 11-05-2017, 05:44 PM
Replies: 7
Views: 895
Posted By Carl Froehlich
A better option is to get the no hole aileraon...

A better option is to get the no hole aileraon bracket from Van’s and drill a new hole to rehang the aileraon. Try the slot technic to find the right height, then rehang with the no hole in the same...
Forum: Electrical Systems 11-05-2017, 08:33 AM
Replies: 46
Views: 3,425
Posted By Carl Froehlich
John, I looks like your mind is made up on some...

John,

I looks like your mind is made up on some set up to replace the voltage regulator in flight - which I again consider inpracital. So I recommend you do a lot of testing on whatever design you...
Forum: Electrical Systems 11-04-2017, 09:13 AM
Replies: 46
Views: 3,425
Posted By Carl Froehlich
John, Some thoughts - inserted after your...

John,

Some thoughts - inserted after your comments:

Everything you connect to the battery is less reliable than the battery. Taking two batteries or two alternators, and either putting them on a...
Forum: Electrical Systems 11-03-2017, 01:27 PM
Replies: 46
Views: 3,425
Posted By Carl Froehlich
John, You have done a nice job mitigating the...

John,

You have done a nice job mitigating the inherent risks associated with a single battery power distribution system.

I offer however, that a more robust design that has two batteries and one or...
Forum: Electrical Systems 11-03-2017, 01:04 PM
Replies: 46
Views: 3,425
Posted By Carl Froehlich
That is what I’m running in the RV-10. Each...

That is what I’m running in the RV-10. Each Vital Buss (Avionics #1 and Avionics #2) is fed from the standby alternator via a bank of diodes to make sure a fault in one of the two avionics busses...
Forum: RV General Discussion/News 11-02-2017, 06:55 PM
Replies: 8
Views: 788
Posted By Carl Froehlich
+1 on fuel cap engraving. I never let anyone...

+1 on fuel cap engraving.

I never let anyone fuel my plane other than me. I broke this rule just once over the last 15 years - and got shorted 7 gallons.

Carl
Forum: COMM 10-31-2017, 12:05 PM
Replies: 5
Views: 437
Posted By Carl Froehlich
Not needed and adds complexity. Just hook it up...

Not needed and adds complexity. Just hook it up to the tow point before getting in the plane. It drags on the ground as you taxi. Get some good quality #14 hard drawn copper antenna wire.

Carl
Forum: COMM 10-31-2017, 11:24 AM
Replies: 5
Views: 437
Posted By Carl Froehlich
A trailing wire worked well for the Lancair 4...

A trailing wire worked well for the Lancair 4 that flew over the north and south poles.

The radio was the small ICOM with remote display, the radio itself and the remote antenna tuner mounted in the...
Forum: RV General Discussion/News 10-31-2017, 10:26 AM
Replies: 18
Views: 1,313
Posted By Carl Froehlich
Yes. Carl

Yes.

Carl
Forum: Traditional Aircraft Engines 10-30-2017, 12:04 PM
Replies: 22
Views: 2,295
Posted By Carl Froehlich
Scott, While some constant heat muff airflow is...

Scott,

While some constant heat muff airflow is nice to prolong the life of the attached SCAT hose, I do not believe the heat muff itself is going to melt without cooling air. The heat muffs I use...
Forum: RV General Discussion/News 10-30-2017, 11:30 AM
Replies: 18
Views: 1,313
Posted By Carl Froehlich
The Dynon SkyView system is about as simple and...

The Dynon SkyView system is about as simple and install as it gets. Either your A&P is an old school “six pack and vacuum pump” guy or perhaps he is just reflecting on the initial conditions you are...
Forum: Traditional Aircraft Engines 10-29-2017, 11:15 PM
Replies: 22
Views: 2,295
Posted By Carl Froehlich
Yep - you are correct. It is also reasonable to...

Yep - you are correct. It is also reasonable to point out that wasted cooling air translates to needless engine cooling drag across the operating envelope. I am one of those “get the most speed out...
Forum: Traditional Aircraft Engines 10-29-2017, 06:56 PM
Replies: 22
Views: 2,295
Posted By Carl Froehlich
A blast tube is required for each pMag. I’m not...

A blast tube is required for each pMag.

I’m not a fan of mounting any battery on the engine side of the firewall as it is bad environment for what has become a critial flight component. For that...
Forum: Midwest 10-29-2017, 05:23 PM
Replies: 8
Views: 674
Posted By Carl Froehlich
Thanks Roger - I’ll dig into this. It sounds...

Thanks Roger - I’ll dig into this. It sounds similar to the Florida mess. The sales tax on the plane will be paid to the state of Virginia.

Carl
Forum: Traditional Aircraft Engines 10-29-2017, 05:20 PM
Replies: 22
Views: 2,295
Posted By Carl Froehlich
This is one of the big problems with the RV-10...

This is one of the big problems with the RV-10 cabin heat valves location. I used a piece of this between the valves and the firewall (holes cut out for the valves), leaving it long on the top so...
Forum: RV-10 10-29-2017, 03:20 PM
Replies: 19
Views: 1,193
Posted By Carl Froehlich
Yep - install a SkyView EFIS and the SkyView...

Yep - install a SkyView EFIS and the SkyView remote transponder. Get the SkyView 2020 GPS receiver and you are 2020 ADS-B out compliant out of the box, and you get TIS displayed on the EFIS as a...
Forum: Midwest 10-28-2017, 09:30 PM
Replies: 8
Views: 674
Posted By Carl Froehlich
Thanks for all the recommendations. Any feed on...

Thanks for all the recommendations.

Any feed on airplane property taxes?

Carl
Forum: RV General Discussion/News 10-28-2017, 05:25 PM
Replies: 31
Views: 5,405
Posted By Carl Froehlich
Yep - such diagrams that fill the paper with...

Yep - such diagrams that fill the paper with lines that are way too hard to follow from point A to point B are not very useful, but they sure look pretty. I found the RV-14 wiring diagrams that came...
Forum: RV-8/8A 10-27-2017, 06:03 PM
Replies: 4
Views: 888
Posted By Carl Froehlich
The “no scoop cowl” uses the horizontal injection...

The “no scoop cowl” uses the horizontal injection Lycoming engine. The cowls with the engine air scoop use a vertical draft carb - or could use a vertical draft injection system. Back before Van’s...
Forum: Midwest 10-27-2017, 02:13 PM
Replies: 8
Views: 674
Posted By Carl Froehlich
Recommendations for moving to the Fort Collins area

I’m considering a move to the Fort Collins area. I’d appreciate ideas on:
- Any airparks to consider
- RV friendly airports with hangars
- Airplane tax issues

Thanks,
Carl
Forum: RV-8/8A 10-27-2017, 02:01 PM
Replies: 15
Views: 2,254
Posted By Carl Froehlich
Another option that might be easier and does not...

Another option that might be easier and does not require taking the hinge off the flap:
- Mount the flap to the wing as discussed above.
- Use the now drilled hinge as a template to drill the holes...
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