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Search: Posts Made By: Carl Froehlich
Forum: Autopilots Today, 10:32 AM
Replies: 18
Views: 695
Posted By Carl Froehlich
Dan, Just give me a call and we’ll discuss. Carl

Dan,

Just give me a call and we’ll discuss.

Carl
Forum: Autopilots Today, 08:33 AM
Replies: 18
Views: 695
Posted By Carl Froehlich
Dan, I would first focus on the 430. You need...

Dan,

I would first focus on the 430.

You need to isolate everything. So one approach:
- Open the breakers on everything other than the 430.
- Disconnect the antennas (including ELT) from...
Forum: RV-10 Today, 08:23 AM
Replies: 2
Views: 137
Posted By Carl Froehlich
The six cylinder pMag in the RV-10 I built runs...

The six cylinder pMag in the RV-10 I built runs perfectly on NGK BR8ES auto plugs - the same as the pMag and NGK plugs in my RV-8 and the RV-8A I built. The planes all fly just fine at 17,500’.

I...
Forum: Autopilots Yesterday, 02:39 PM
Replies: 18
Views: 695
Posted By Carl Froehlich
Dan, As an early GTN-650 adopter, I found I...

Dan,

As an early GTN-650 adopter, I found I could make the GTN-650 loose all satellites simply by transmitting on the GTN-650. I also noted that when transmitting on Comm #2, the satellites where...
Forum: RV-7/7A 05-21-2022, 12:21 PM
Replies: 7
Views: 272
Posted By Carl Froehlich
There is a way, but you need a narrow enough...

There is a way, but you need a narrow enough bucking bar to fit inside the U bracket of the aileron SB kit.

Carl
Forum: RV Ongoing Maintenance Issues 05-20-2022, 08:47 AM
Replies: 6
Views: 379
Posted By Carl Froehlich
The short answer to why is that many of use have...

The short answer to why is that many of use have seen these gaskets leak. Not right away, but they will.

I fixed leaks on an RV-8 a few years ago, both senders installed with just the gaskets. ...
Forum: RV Building Tips/Techniques 05-19-2022, 09:38 AM
Replies: 5
Views: 516
Posted By Carl Froehlich
A piece of 0.032” aluminum that puts the glass...

A piece of 0.032” aluminum that puts the glass between the door flange and the plate works well. The angle tabs also reduce the tendency for the filter to go from a cylinder to a cone, as well as...
Forum: RV General Discussion/News 05-19-2022, 08:30 AM
Replies: 22
Views: 1,471
Posted By Carl Froehlich
Find a local builder that needs help - and make a...

Find a local builder that needs help - and make a new friend as a bonus.

Carl
Forum: Traditional Aircraft Engines 05-18-2022, 07:54 PM
Replies: 10
Views: 1,818
Posted By Carl Froehlich
Any chance this engine was rebuilt - but the...

Any chance this engine was rebuilt - but the finger screen never removed and cleaned?

Carl
Forum: RV General Discussion/News 05-17-2022, 04:36 PM
Replies: 22
Views: 1,980
Posted By Carl Froehlich
The one time in 20 years I did not personally...

The one time in 20 years I did not personally fill my plane - and I got shorted 5 gallons. The good news is the float gauges were well calibrated so I noted the error.

Always fill your own...
Forum: Safety 05-17-2022, 07:39 AM
Replies: 34
Views: 3,762
Posted By Carl Froehlich
+1. Luckily I have a good friend that knows how...

+1. Luckily I have a good friend that knows how to TIG weld.

Carl
Forum: RV General Discussion/News 05-16-2022, 05:58 PM
Replies: 9
Views: 836
Posted By Carl Froehlich
What difference does this make?? As previously...

What difference does this make??

As previously stated, just get the kit and let Van’s send you the wingtip when they have them. If you want to save on shipping, just have Van’s put them in your...
Forum: RV General Discussion/News 05-16-2022, 11:09 AM
Replies: 99
Views: 23,934
Posted By Carl Froehlich
This too shall pass….. I just wish any airport...

This too shall pass…..

I just wish any airport in my area offered Swift 94. I keep banging my head against the wall with the FBOs and just get the stiff arm as they repeat the AOPA mantra “drop in...
Forum: RV-14 05-15-2022, 08:04 AM
Replies: 9
Views: 1,003
Posted By Carl Froehlich
Way slow for that fuel burn. This may be a fuel...

Way slow for that fuel burn.

This may be a fuel flow measuring error - did you mount the red cube per the firewall forward instructions?

On the RV-14A I helped with this problem at ~7K’ or so fuel...
Forum: RV General Discussion/News 05-14-2022, 04:34 PM
Replies: 37
Views: 2,357
Posted By Carl Froehlich
You may find some alignment of hardware with...

You may find some alignment of hardware with specific subassemblies.

But - I tend to just keep the hardware bags as they are, work the parts then at some point move the rest into the hardware...
Forum: RV-4 05-14-2022, 02:13 PM
Replies: 4
Views: 275
Posted By Carl Froehlich
Yes, reverse the process. - Get the flaps all...

Yes, reverse the process.

- Get the flaps all the way up, and left side same as right side.
- Align the aileron trailing edge with the flap trailing edge.
- Verify the ailerons are hung the same...
Forum: Glass Cockpit 05-13-2022, 10:47 AM
Replies: 5
Views: 278
Posted By Carl Froehlich
I tried all the various locations for the OAT...

I tried all the various locations for the OAT probes - only out on the wing provided an accurate reading. Run a four #22 conductor shielded wire to connect both (the shielding is not needed, just an...
Forum: RV-10 05-12-2022, 06:57 PM
Replies: 4
Views: 1,568
Posted By Carl Froehlich
What I did (in a large basement shop with hangar...

What I did (in a large basement shop with hangar 100’ away). I mated the forward fuselage to the tail cone when it was time to do the cabin top. I did not install the gear, instead I bolted short...
Forum: Electrical Systems 05-11-2022, 02:01 PM
Replies: 57
Views: 4,608
Posted By Carl Froehlich
Scott, This design’s operation is the similar to...

Scott,

This design’s operation is the similar to the B&C 8 amp generator (as in the outer case spins), and is part of the rare earth permanent magnet scheme. I’ve seen one of these B&C generators...
Forum: Electrical Systems 05-11-2022, 01:11 PM
Replies: 57
Views: 4,608
Posted By Carl Froehlich
The short answer is no. Rethinking how I did...

The short answer is no. Rethinking how I did diode isolation to the two avionics busses on my old standby alternator scheme I decided that was overkill - as in I was mitigating a risk of one high...
Forum: RV General Discussion/News 05-11-2022, 12:09 PM
Replies: 26
Views: 2,361
Posted By Carl Froehlich
I carry those things that would not be readily...

I carry those things that would not be readily available on the road (within reason). For example:
- Spare inner tube
- Brake Pads
- Brake master cylinder rebuild kit (software)
- Spare gas cap
-...
Forum: RV-8/8A 05-10-2022, 08:17 AM
Replies: 5
Views: 535
Posted By Carl Froehlich
Why? My paint shop (me) did two coats of epoxy...

Why?

My paint shop (me) did two coats of epoxy primer, flew for 100 hours, then took the plane down for paint. The plane (including the Grove gear after light sanding) got a coat of primer, color...
Forum: RV General Discussion/News 05-10-2022, 08:06 AM
Replies: 10
Views: 664
Posted By Carl Froehlich
Please keep in mind squeezing the aileron...

Please keep in mind squeezing the aileron trailing edge is in the bucket of “very fine adjustment” and assumes everything else associated with rigging is correct.

I have worked many heavy wings and...
Forum: RV Building Tips/Techniques 05-09-2022, 05:01 PM
Replies: 3
Views: 274
Posted By Carl Froehlich
I had very mixed results with smooth prime - and...

I had very mixed results with smooth prime - and will not use it again. But if I did I’d:
- Thin with just a touch of water and use a standard HVLP spray gun. This cut the sanding chore down by...
Forum: Electrical Systems 05-09-2022, 04:25 PM
Replies: 57
Views: 4,608
Posted By Carl Froehlich
I installed this generator as a standby generator...

I installed this generator as a standby generator during my Condition Inspection. I finally got a chance to test it today and it was flawless (primary alternator is a 60amp B&C).

The Dogwood (VA42)...
Forum: RV-14 05-08-2022, 08:11 AM
Replies: 4
Views: 2,314
Posted By Carl Froehlich
I suggest you step back and decide how you want...

I suggest you step back and decide how you want to run wires and pitot/AOA lines in your wings (and for that matter the rest of the plane).

The plans are written assuming you are using the Van’s...
Forum: Traditional Aircraft Engines 05-07-2022, 07:14 AM
Replies: 5
Views: 579
Posted By Carl Froehlich
You table does not tell a story as at 21.4 GPH...

You table does not tell a story as at 21.4 GPH you are grossly ROP (as in so far down the ROP curve that one cylinder being a little leaner than the other will not show).

Log the fuel flow in cruise...
Forum: RV Ongoing Maintenance Issues 05-06-2022, 10:49 AM
Replies: 22
Views: 1,892
Posted By Carl Froehlich
Based on the maintenance you listed, I’d first...

Based on the maintenance you listed, I’d first check for a fuel system leak - as in air getting into the fuel line.

Happened to me on a Franklin engine, the mechanical fuel pump seals started to let...
Forum: RV-8/8A 05-04-2022, 04:18 PM
Replies: 6
Views: 807
Posted By Carl Froehlich
The NACA scoop is part of the right wing kit. ...

The NACA scoop is part of the right wing kit. The wing bottom skin already has the hole cut for the scoop.

Carl
Forum: Fuel Injection Systems 05-04-2022, 08:14 AM
Replies: 2
Views: 400
Posted By Carl Froehlich
Pete, You could buy the snorkel for the RV-14...

Pete,

You could buy the snorkel for the RV-14 with the IO-390-EXP119 - it uses the FM200. This snorkel has also been modified (as I understand) to get better flow.

Carl
Forum: RV General Discussion/News 05-03-2022, 07:11 AM
Replies: 35
Views: 3,429
Posted By Carl Froehlich
The holder on the trialing edge is made of 1/8”...

The holder on the trialing edge is made of 1/8” aluminum angle, the inside lined with rubber, on top of that some foam rubber. Place the holder at the height such that the lines get tighter if it...
Forum: Electronic Ignition Systems 05-02-2022, 08:02 AM
Replies: 20
Views: 1,571
Posted By Carl Froehlich
I again caution builders with ship power...

I again caution builders with ship power dependent engines to not be caviler about power distribution design. I also suggest that the install instructions for many of these systems should be...
Forum: RV General Discussion/News 04-30-2022, 07:45 PM
Replies: 35
Views: 3,429
Posted By Carl Froehlich
No. 1/8” or so line is looped around the...

No. 1/8” or so line is looped around the elevator rod end bearing. This is where you use a bowline knot so you can untie it. Use the seatbelt to hold the elevators up (need to lock them as well)...
Forum: RV General Discussion/News 04-30-2022, 06:05 PM
Replies: 35
Views: 3,429
Posted By Carl Froehlich
I suggest the lever arm from the rudder will...

I suggest the lever arm from the rudder will break something, either the lock or the horn.

Here is a dirt simple way to lock the rudder, and you get practice tying your Bowline...
Forum: RV-14 04-30-2022, 06:53 AM
Replies: 8
Views: 567
Posted By Carl Froehlich
The starter comes with the engine, but Lycoming...

The starter comes with the engine, but Lycoming will sell you whatever you want.

Carl
Forum: RV-14 04-29-2022, 02:50 PM
Replies: 8
Views: 567
Posted By Carl Froehlich
It depends. For example: - Do you want the FWF...

It depends. For example:
- Do you want the FWF provided Plane Power alternator? Many opt for the B&C 60 amp externally regulated unit.
- Do you want the FWF provided governor? I prefer the...
Forum: RV-10 04-29-2022, 01:57 PM
Replies: 28
Views: 2,440
Posted By Carl Froehlich
Here is what I did. These dense foam fillers in...

Here is what I did. These dense foam fillers in the hinge pockets are cut from the hangar door install. You can also use the foam the wheel assemblies come in - or whatever. A little black RTV...
Forum: Glass Cockpit 04-28-2022, 06:00 PM
Replies: 11
Views: 926
Posted By Carl Froehlich
I recommend you move it out to the first to the...

I recommend you move it out to the first to the aileron bell crank area. Mounting in the wing root will have it read 3-4 degrees high.

Carl
Forum: VAF Classifieds (posts in here deleted after 30 days) 04-28-2022, 05:21 PM
Replies: 0
Views: 795
Posted By Carl Froehlich
Home for sale, Dogwood Airpark (VA42)

Updated to add webpage and revised price of $1.1M

https://www.dogwoodhouse.net/

Carl

Home and hangar on the runway for sale. This does not happen very often at Dogwood.

Dogwood is within commute...
Forum: Electrical Systems 04-28-2022, 04:13 PM
Replies: 9
Views: 411
Posted By Carl Froehlich
If you really want to do that, then just have a...

If you really want to do that, then just have a piece of shrink tube on the wire before you put on the connector.

Carl
Forum: RV General Discussion/News 04-28-2022, 11:43 AM
Replies: 28
Views: 2,168
Posted By Carl Froehlich
I do not think that is correct. Consider your...

I do not think that is correct.

Consider your engine as a system. A bad ram air filter setup will not perform as well as say a standard snorkel install.

I reported back to Don Rivera after I...
Forum: RV General Discussion/News 04-28-2022, 11:17 AM
Replies: 28
Views: 2,168
Posted By Carl Froehlich
Having air for the engine to properly breath is...

Having air for the engine to properly breath is alway good.

Of late I got educated by Dan Horton and Don Rivera (at AFP) on just how sensitive our engines are on air filters as they impact air...
Forum: Electronic Ignition Systems 04-27-2022, 05:24 PM
Replies: 7
Views: 455
Posted By Carl Froehlich
If you choose to run one pMag and one Mag,...

If you choose to run one pMag and one Mag, leaving the left mag with the retard and putting the pMag on the right side allows for both ignitions for start.

As discussed, the shower of sparks no...
Forum: Traditional Aircraft Engines 04-26-2022, 07:50 AM
Replies: 3
Views: 453
Posted By Carl Froehlich
Correct and with luck the three stakeholders will...

Correct and with luck the three stakeholders will soon agree on a path forward. In the meantime I suggest you work with Jeff Schans at Thunderbolt on options to get what you want.

Carl
Forum: Fuel Injection Systems 04-26-2022, 07:44 AM
Replies: 1
Views: 341
Posted By Carl Froehlich
I did this on my first RV (new O-360-A1A from...

I did this on my first RV (new O-360-A1A from Van’s) as back then there were no IO options offered for a parallel valve engine. I never even took the carb out of the shipping box, just sold it.

I...
Forum: Traditional Aircraft Engines 04-26-2022, 07:29 AM
Replies: 3
Views: 453
Posted By Carl Froehlich
Funny you should ask. Working to have a flow...

Funny you should ask. Working to have a flow test on a stock Van’s snorkel done now. I’m hopeful the lessons learned from the RV-14 cowl and engine update to the IO-390-EXP119 (using the FM-200)...
Forum: RV Building Tips/Techniques 04-25-2022, 07:29 PM
Replies: 3
Views: 319
Posted By Carl Froehlich
Go to Lowes and get the #6 machine screw tap with...

Go to Lowes and get the #6 machine screw tap with pilot drill combo.

Carefully mark where to drill on the mast. Insert the pitot. Start with a #40 drill bit through the mast, then insert the pitot...
Forum: Painting your RV 04-25-2022, 07:07 PM
Replies: 9
Views: 798
Posted By Carl Froehlich
As far as cost, top end PPG urethane base and...

As far as cost, top end PPG urethane base and clear will run you around $4k for materials.

Carl
Forum: Fiberglass 04-25-2022, 05:05 PM
Replies: 14
Views: 1,344
Posted By Carl Froehlich
Don’t use Peel Ply. Error on the side of more...

Don’t use Peel Ply. Error on the side of more epoxy.

Carl
Forum: Electrical Systems 04-25-2022, 03:04 PM
Replies: 19
Views: 1,201
Posted By Carl Froehlich
Don’t forget to put a breaker or fuse in line...

Don’t forget to put a breaker or fuse in line with the power supply.

Carl
Forum: Electrical Systems 04-25-2022, 01:35 PM
Replies: 19
Views: 1,201
Posted By Carl Froehlich
Butch - the short answer is yes. I personally...

Butch - the short answer is yes. I personally hate these things - and anything else associated with “jumping” a dead battery.

Carl
Forum: Electrical Systems 04-25-2022, 07:38 AM
Replies: 19
Views: 1,201
Posted By Carl Froehlich
Butch, I suggest that just running a #12 “Shore...

Butch,

I suggest that just running a #12 “Shore Power” wire to whatever you are using to feed your avionics is just fine. No need to mess with the fat wires. Add a 20 amp breaker in line from the...
Forum: Electronic Ignition Systems 04-24-2022, 04:40 PM
Replies: 9
Views: 1,158
Posted By Carl Froehlich
When you do a mag check during run up, do all...

When you do a mag check during run up, do all EGTs go up when you turn off the left pMag, go up when you turn off the right pMag?

Carl
Forum: RV-8/8A 04-24-2022, 03:59 PM
Replies: 3
Views: 398
Posted By Carl Froehlich
The dimension is just guidance. What you will do...

The dimension is just guidance. What you will do is make the front stick as long as it can be but still have whatever stick grip you are using miss the bottom of the panel. For the infinity grip...
Forum: RV General Discussion/News 04-24-2022, 03:45 PM
Replies: 8
Views: 588
Posted By Carl Froehlich
But - this would be best indicted by slow...

But - this would be best indicted by slow cranking. Does the engine crank ok?

If the engine is cranking ok, I’d still verify the alternator to engine ground. Usually this is case on case, but...
Forum: RV General Discussion/News 04-24-2022, 02:25 PM
Replies: 8
Views: 588
Posted By Carl Froehlich
Dan, Several moving parts so will need more...

Dan,

Several moving parts so will need more information. For example:
- Is this a new problem or one that you have always had?
- Any maintenance done before this showed up? Like alternator...
Forum: Electrical Systems 04-24-2022, 08:44 AM
Replies: 13
Views: 888
Posted By Carl Froehlich
Scott, EFII adds a lot of issues that need to be...

Scott,

EFII adds a lot of issues that need to be carefully reviewed and if needed, mitigations developed.

The quick blush on your diagram #5 the one thing that jumps out is you provide isolation...
Forum: RV Building Tips/Techniques 04-23-2022, 04:58 PM
Replies: 3
Views: 361
Posted By Carl Froehlich
If you dimple the skin for the rear baffle, you...

If you dimple the skin for the rear baffle, you both make it harder to get the baffle on and hinder the associate seal.

Carl
Forum: RV Building Tips/Techniques 04-22-2022, 05:49 PM
Replies: 6
Views: 654
Posted By Carl Froehlich
You can do the control surfaces at any time. I...

You can do the control surfaces at any time. I recommend however you follow the instructions on the wings:
- Spars
- Ribs
- Top skins
- Tanks and leading edge (but these can be done before anything...
Forum: RV-8/8A 04-22-2022, 10:56 AM
Replies: 9
Views: 502
Posted By Carl Froehlich
Yella Dawg, PM me your email address and I’ll...

Yella Dawg,

PM me your email address and I’ll send what photos I have.

Carl
Forum: RV General Discussion/News 04-22-2022, 10:52 AM
Replies: 35
Views: 2,570
Posted By Carl Froehlich
A receiving antenna has the exact same electrical...

A receiving antenna has the exact same electrical properties of a transmitting antenna. For any half wave dipole (like you suggest), the first third or so of each element is the current part, the...
Forum: RV General Discussion/News 04-22-2022, 09:46 AM
Replies: 35
Views: 2,570
Posted By Carl Froehlich
George, The VOR/LOC/GS antenna goes in the...

George,

The VOR/LOC/GS antenna goes in the wingtip because any option on the skin with both not needed, and ugly. And all those bolting it on the skin need to be very careful of how the high...
Forum: Glass Cockpit 04-21-2022, 08:10 AM
Replies: 10
Views: 536
Posted By Carl Froehlich
+1. Make room for it as well as the AP...

+1. Make room for it as well as the AP panel.

Carl
Forum: Midwest 04-21-2022, 08:09 AM
Replies: 6
Views: 768
Posted By Carl Froehlich
Erie Airpark (KIEK)

Anyone living at Erie Airpark (KIEK) available to chat? Looking at this as a place to move.

Carl
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