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Search: Posts Made By: Carl Froehlich
Forum: COMM Yesterday, 04:19 PM
Replies: 3
Views: 222
Posted By Carl Froehlich
Exact same symptom if either terminal screw is...

Exact same symptom if either terminal screw is loose on the associated breaker terminals.

Carl
Forum: RV-10 04-08-2021, 07:03 PM
Replies: 3
Views: 460
Posted By Carl Froehlich
David - what exhaust did you use? Carl

David - what exhaust did you use?

Carl
Forum: RV-7/7A 04-08-2021, 06:09 PM
Replies: 15
Views: 699
Posted By Carl Froehlich
But I suggest this is a problem mostly associated...

But I suggest this is a problem mostly associated with radio in use. For example, the GTR-200 radio exhibits this problem - so much that Garmin has this line you connect between the GTN-650 and the...
Forum: RV-7/7A 04-08-2021, 05:23 PM
Replies: 15
Views: 699
Posted By Carl Froehlich
Yep - I should have picked my words much...

Yep - I should have picked my words much better.....

Carl
Forum: RV-7/7A 04-08-2021, 05:16 PM
Replies: 15
Views: 699
Posted By Carl Froehlich
A comm antenna on top is truely ugly. Don’t do...

A comm antenna on top is truely ugly. Don’t do it. The concept that the tower cannot hear you on the ground violates basic RF propagation rules. VHF line of sight is by no means “if I can’t see...
Forum: RV-14 04-08-2021, 09:45 AM
Replies: 12
Views: 766
Posted By Carl Froehlich
So, you want details! Sequence: - Left master...

So, you want details!

Sequence:
- Left master on
- Right master on
- Left vital bus on (brings up the left EFIS and power to flaps and COMM #2, it will be on during engine start)
- Right vital off...
Forum: RV Ongoing Maintenance Issues 04-07-2021, 08:02 PM
Replies: 6
Views: 830
Posted By Carl Froehlich
Are you using a Flap Positioning System - the one...

Are you using a Flap Positioning System - the one with the notched rod that trips micro switches?

Carl
Forum: RV-14 04-07-2021, 03:54 PM
Replies: 12
Views: 766
Posted By Carl Froehlich
Both pMags on, prime (if cold) using the boost...

Both pMags on, prime (if cold) using the boost pump, then hit the start button. I use a toggle switch for each ignition and a starter push button - hate old school key ignition switches.

Carl
Forum: RV-10 04-07-2021, 11:33 AM
Replies: 3
Views: 460
Posted By Carl Froehlich
Modified RV-10 cowl??

I keep looking at the much improved RV-14 lower cowl with envy. The significant drag reduction from this design should be a good model to replicate on the RV-10.

I’m curious if anyone has gone down...
Forum: RV Building Tips/Techniques 04-07-2021, 08:26 AM
Replies: 11
Views: 588
Posted By Carl Froehlich
Or, mark where the locking ring tab hits the back...

Or, mark where the locking ring tab hits the back of the panel. Remove the switch. Use a #40 drill bit to make a small hole at the mark - but do not go all the way through the panel. The small...
Forum: RV Ongoing Maintenance Issues 04-06-2021, 06:58 PM
Replies: 11
Views: 483
Posted By Carl Froehlich
Take the cowl off. Disconnect the fuel line at...

Take the cowl off. Disconnect the fuel line at the firewall and connect a short piece of 3/8” aluminum tubing, flared for the AN fitting. Connect a 3/8” ID tygon hose to the aluminum tube, then a...
Forum: RV-8/8A 04-06-2021, 01:49 PM
Replies: 9
Views: 580
Posted By Carl Froehlich
Move the battery off the firewall to the aft...

Move the battery off the firewall to the aft standard battery mount location.

I run a IO-360-M1B with Hartzell CS prop. One PC-625 battery mounted in the forward baggage well, the second mounted in...
Forum: RV-8/8A 04-06-2021, 08:55 AM
Replies: 7
Views: 515
Posted By Carl Froehlich
It seems that your CG is a little too far...

It seems that your CG is a little too far forward, not out of spec but perhaps not what you want.

For solo flight, my RV-8 CG is 81 - 83”, perhaps as far forward as 79” for a much smaller pilot than...
Forum: RV-10 04-06-2021, 08:36 AM
Replies: 51
Views: 13,568
Posted By Carl Froehlich
I suggest this is not an aileron trim problem,...

I suggest this is not an aileron trim problem, this is an aileron trim install problem.

During installation you tighten the rod end bearings when they are in a neutral position - do so after you...
Forum: Glass Cockpit 04-05-2021, 05:43 PM
Replies: 8
Views: 233
Posted By Carl Froehlich
Another “Garmin Value Added”. I still hold out...

Another “Garmin Value Added”. I still hold out hope we someday have other options for IFR TSO GPS navigators.

Carl
Forum: Glass Cockpit 04-05-2021, 04:44 PM
Replies: 8
Views: 233
Posted By Carl Froehlich
Not my experience so perhaps this is an IFD-440...

Not my experience so perhaps this is an IFD-440 issue? On the first RV I ran a D10A being fed via serial from either a GX-60 for GPS, or SL-30 for VOR/LOC/ILS. No ARINC. A simple toggle switch...
Forum: Glass Cockpit 04-05-2021, 04:11 PM
Replies: 8
Views: 233
Posted By Carl Froehlich
The G5 cannot just use a serial output from the...

The G5 cannot just use a serial output from the IFD 440 to drive the G5 CDI for LOC and GS?

Carl
Forum: RV-8/8A 04-04-2021, 08:22 AM
Replies: 14
Views: 1,585
Posted By Carl Froehlich
First make sure you are not putting a bandaid on...

First make sure you are not putting a bandaid on a rigging issue. Fly with the wheel pants off. Ball still out? Do you have a heavy wing?

Then take small steps for rudder trim. The photo of the...
Forum: Glass Cockpit 04-03-2021, 10:48 AM
Replies: 16
Views: 1,333
Posted By Carl Froehlich
Yep - always a hard process as there are many...

Yep - always a hard process as there are many choices, and even more opinions on what to do.

What I recommend:
- Decide now if it will be VFR only or IFR. There is no such thing as “light IFR”.
-...
Forum: RV Ongoing Maintenance Issues 03-31-2021, 03:55 PM
Replies: 13
Views: 942
Posted By Carl Froehlich
You must aggressively lean when on the ground -...

You must aggressively lean when on the ground - as in just before cutout.

I run LOP 95% of the time and strive to keep CHTs in the 350-400 degree ranged as stuck valve preventative measures. I...
Forum: Traditional Aircraft Engines 03-31-2021, 10:13 AM
Replies: 9
Views: 412
Posted By Carl Froehlich
Just a reminder, you balance the injectors by...

Just a reminder, you balance the injectors by replacing injector nozzles, not injectors.

At ~$28 each from AirFlow Performance this is a cheap process. I have a collection of nozzles in my hangar...
Forum: Traditional Aircraft Engines 03-30-2021, 02:39 PM
Replies: 9
Views: 412
Posted By Carl Froehlich
I imagine this GAMI spread of 1.5GPH ran pretty...

I imagine this GAMI spread of 1.5GPH ran pretty rough at LOP. Is this a Lycoming IO-540 or what?

#2 and #4 are peaking at a higher GPH than the rest - that means those cylinders are leaner.

For my...
Forum: Electrical Systems 03-30-2021, 10:17 AM
Replies: 9
Views: 630
Posted By Carl Froehlich
I already looked for one - no joy. But this is...

I already looked for one - no joy.

But this is really simple. Cut a small piece of aluminum (thin is fine) that is roughly the same shape as the inside of the wingtip cutout under the area where...
Forum: Electrical Systems 03-29-2021, 01:02 PM
Replies: 9
Views: 630
Posted By Carl Froehlich
I do not recommend grounding the NAV/Strobe on...

I do not recommend grounding the NAV/Strobe on the airframe. I do however recommend adding a small aluminum plate on the inside of the wingtip, the small wingtip cutout fiberglass will then be...
Forum: RV-8/8A 03-29-2021, 10:37 AM
Replies: 10
Views: 986
Posted By Carl Froehlich
For those still building, consider replacing the...

For those still building, consider replacing the provided aluminum cooling ramp with 0.015” SS. This also complements firewalls insulated with Fiberfrax and a thin SS clad.

Use the provided...
Forum: RV-7/7A 03-28-2021, 03:52 PM
Replies: 18
Views: 1,368
Posted By Carl Froehlich
Or, just end the issue and back fit the very nice...

Or, just end the issue and back fit the very nice AirFlow Performance fuel injection system. This is a bolt on replacement - other than you need to replace the mechanical fuel pump with the high...
Forum: Steam Gauges 03-27-2021, 06:37 AM
Replies: 8
Views: 701
Posted By Carl Froehlich
My first (8A) I had a similar problem. The...

My first (8A) I had a similar problem. The simple fix was to drill a small hole through the head of a 3/16” round rivet, cut off the rivet head and epoxy it onto the flat static ports (these ports...
Forum: RV-10 03-26-2021, 03:17 PM
Replies: 22
Views: 1,248
Posted By Carl Froehlich
Do yourself a favor, use the standard float...

Do yourself a favor, use the standard float senders. Search VAF for capacitive sender problems.

Once calibrated (SkyView system) the float senders read within a gallon of actual once in indication...
Forum: Glass Cockpit 03-26-2021, 10:53 AM
Replies: 10
Views: 578
Posted By Carl Froehlich
There are no “inexpensive” TSO GPS IFR navigator...

There are no “inexpensive” TSO GPS IFR navigator options. The SkyView however will play with all of these options.

Decide what you want. If you want GPS approach and ILS capability, the GTN-650 is...
Forum: RV-10 03-26-2021, 09:59 AM
Replies: 22
Views: 1,248
Posted By Carl Froehlich
Things like which EFIS system you want can be...

Things like which EFIS system you want can be deferred. For the Tail Kit I do recommend getting the ADAHRS module mounting kit from Van’s as this will work to mount most modules (like Dynon and...
Forum: RV Building Tips/Techniques 03-25-2021, 03:46 PM
Replies: 7
Views: 547
Posted By Carl Froehlich
+1. The audio feed from the Dynon AOA is...

+1. The audio feed from the Dynon AOA is superb.

Carl
Forum: RV-7/7A 03-25-2021, 10:24 AM
Replies: 34
Views: 2,049
Posted By Carl Froehlich
+1. This happened to me once. Since then I keep...

+1. This happened to me once. Since then I keep them at 40-42 and have not had a recurrence.

Low tire pressure to fix a shimmy is a bad bandaid at best. Balance the tires and for nose wheel guys...
Forum: RV Building Tips/Techniques 03-25-2021, 09:12 AM
Replies: 11
Views: 642
Posted By Carl Froehlich
Don’t over think this: - For Dynon, buy the...

Don’t over think this:
- For Dynon, buy the heated pitot/AOA tube and mount. Follow the installation instructions that come with it. I mount mine on the wing bay just outboard the aileron bell...
Forum: Electrical Systems 03-23-2021, 06:01 PM
Replies: 12
Views: 639
Posted By Carl Froehlich
Get the Dynon radio instead of the GTR-200. I...

Get the Dynon radio instead of the GTR-200. I find the Dynon radio to be far superior to the GTR-200 after ferrying an RV-14 that had that as Comm #2. Comm #1 was a GTN-650.

Carl
Forum: RV-14 03-23-2021, 05:50 PM
Replies: 12
Views: 1,043
Posted By Carl Froehlich
Paint. I use the same type single stage PPG...

Paint. I use the same type single stage PPG urethane paint that I use on the interior. Wears like iron.

In my opinion, bare aluminum looks horrible after a few years.

Carl
Forum: Electrical Systems 03-23-2021, 05:46 PM
Replies: 6
Views: 504
Posted By Carl Froehlich
Just wire a pigtail, with a “shore power breaker”...

Just wire a pigtail, with a “shore power breaker” to your master buss. You decide if you want it to just power the plane (as in you keep the master off) or you power the plane and charge the battery...
Forum: Electrical Systems 03-22-2021, 02:49 PM
Replies: 12
Views: 639
Posted By Carl Froehlich
It adds: - Capability to switch between two...

It adds:
- Capability to switch between two radios (requires a single toggle switch to select the transmit radio).
- Ability to monitor a second radio.
- NAV audio output.
- Intercom
- Audio feed...
Forum: Electrical Systems 03-22-2021, 12:43 PM
Replies: 3
Views: 329
Posted By Carl Froehlich
There are three power pins on the GTN-650 for...

There are three power pins on the GTN-650 for COMM power, two pins for NAV power for just this reason (pins are too small for a #18 wire).

Use #22 wire in each pin, then splice the three comm power...
Forum: Electrical Systems 03-22-2021, 11:05 AM
Replies: 9
Views: 555
Posted By Carl Froehlich
Make this easy. I use a nice locking toggle...

Make this easy. I use a nice locking toggle switch for ignition On/Off, and a pull breaker to provide power. The periodic tests to make sure the internal alternator is working is just momentarily...
Forum: Electrical Systems 03-22-2021, 08:44 AM
Replies: 2
Views: 268
Posted By Carl Froehlich
As I have posted in the past, my experience...

As I have posted in the past, my experience helping someone install the RV-14 wiring kit was not good. Here are a few examples:
- Too many clunky Molex connectors
- Wrong wire (as in not using...
Forum: RV General Discussion/News 03-22-2021, 08:36 AM
Replies: 19
Views: 1,075
Posted By Carl Froehlich
I’ve used the AeroLed NAV/Strobes on two RVs and...

I’ve used the AeroLed NAV/Strobes on two RVs and like them. For the current RV-10 project however I’m looking at “The Works” from FlyLED.

In addition to the AeroLED NAV/Strobes, I installed two...
Forum: RV General Discussion/News 03-22-2021, 08:31 AM
Replies: 6
Views: 348
Posted By Carl Froehlich
Aileron and Elevator trim on one pull breaker. ...

Aileron and Elevator trim on one pull breaker. Flaps on another. Autopilot servos on another pull breaker.

I use the auto trim feature on the SkyView autopilot to provide trim switching functions...
Forum: RV General Discussion/News 03-21-2021, 01:44 PM
Replies: 12
Views: 714
Posted By Carl Froehlich
From my reading the GTX45R requires an approved...

From my reading the GTX45R requires an approved GPS position source - it does not have a GPS receiver.

https://buy.garmin.com/en-US/US/p/568115

To answer your specific question, two antennas. A...
Forum: RV-10 03-20-2021, 05:44 PM
Replies: 16
Views: 1,305
Posted By Carl Froehlich
Hard to beat the results I had using Proseal on...

Hard to beat the results I had using Proseal on the first RV-10, so I'm doing the same on the new RV-10.

Carl
Forum: RV-10 03-18-2021, 11:28 AM
Replies: 9
Views: 698
Posted By Carl Froehlich
I’m just finishing the tail kit on my second RV. ...

I’m just finishing the tail kit on my second RV. The wing kit arrives the first of May, the fuselage kit arrives the first of June. I’m dragging my heels on ordering the finish kit because of...
Forum: RV-10 03-16-2021, 07:41 PM
Replies: 3
Views: 321
Posted By Carl Froehlich
Perhaps some details will help: - You went from...

Perhaps some details will help:
- You went from no static to static. Anything change, any maintenance or did the noise just start?
- The engine starts as before? If so this confirms a good...
Forum: RV Building Tips/Techniques 03-16-2021, 11:23 AM
Replies: 31
Views: 1,969
Posted By Carl Froehlich
You can get the foam from Van’s. They sell it...

You can get the foam from Van’s. They sell it for just this function.

Carl
Forum: RV Building Tips/Techniques 03-15-2021, 10:09 AM
Replies: 8
Views: 542
Posted By Carl Froehlich
Or, offset the Dynon GPS antenna/receiver to one...

Or, offset the Dynon GPS antenna/receiver to one side of centerline, mount whatever TSO GPS navigator antenna on the other side of centerline. Here mounting the TSO GPS antenna forward of the Dynon...
Forum: RV-7/7A 03-14-2021, 09:54 AM
Replies: 3
Views: 324
Posted By Carl Froehlich
I suspect after reassembly the float arm is now...

I suspect after reassembly the float arm is now hitting something in the tank preventing full travel.

Carl
Forum: RV Building Tips/Techniques 03-13-2021, 03:49 PM
Replies: 14
Views: 669
Posted By Carl Froehlich
Interesting - perhaps a change from when I did...

Interesting - perhaps a change from when I did mine.

Carl
Forum: RV-8/8A 03-13-2021, 08:47 AM
Replies: 9
Views: 719
Posted By Carl Froehlich
Adequate weight for flutter may or may not be...

Adequate weight for flutter may or may not be adequate for balance.

Carl
Forum: RV-8/8A 03-13-2021, 07:39 AM
Replies: 9
Views: 719
Posted By Carl Froehlich
I offer that going to extreme lengths to get a...

I offer that going to extreme lengths to get a perfect balance is not the objective.

I did this on my first RV-8A - cutting open the end of my carefluly finished elevator tips to add weight after...
Forum: RV General Discussion/News 03-13-2021, 07:29 AM
Replies: 6
Views: 577
Posted By Carl Froehlich
I don’t see this to have any advantage, and a...

I don’t see this to have any advantage, and a boatload of downside. I would also would not trust the outboard aileron skin and rib to be able to handle the stress. The best case for a failure is a...
Forum: RV-10 03-12-2021, 01:21 PM
Replies: 33
Views: 5,481
Posted By Carl Froehlich
After a Rhode Island Air National Guard prop...

After a Rhode Island Air National Guard prop blast ripped off my RV-10 pilot door as I was fueling, I created the golden rule:
- Unless the plane is in the hangar, someone is getting in or out, the...
Forum: RV Ongoing Maintenance Issues 03-12-2021, 12:54 PM
Replies: 12
Views: 1,398
Posted By Carl Froehlich
The most frustrating leak I’ve had was on the...

The most frustrating leak I’ve had was on the airspeed instrument glass face - it took a long time to find. Check for this by disconnecting and capping the static line going to the...
Forum: RV-12/RV-12iS 03-12-2021, 09:25 AM
Replies: 18
Views: 1,770
Posted By Carl Froehlich
Exactly. New tanks need to be flushed, I don’t...

Exactly.

New tanks need to be flushed, I don’t care how tidy you were making them. Sump as needed to get a clear sample. Next make a simple jumper from the firewall fuel line connection to five...
Forum: RV-8/8A 03-11-2021, 07:27 PM
Replies: 5
Views: 749
Posted By Carl Froehlich
So you have the cowl that has a separate engine...

So you have the cowl that has a separate engine air inlet?
Carl
Forum: RV-7/7A 03-11-2021, 06:52 PM
Replies: 4
Views: 624
Posted By Carl Froehlich
Four #22 conductor shielded wire is preferred as...

Four #22 conductor shielded wire is preferred as it is more durable. Use the shield as the ground wire.

As far as how much, just buy a 100’ roll from Stein as you will use it for other stuff like...
Forum: RV-8/8A 03-11-2021, 06:45 PM
Replies: 5
Views: 749
Posted By Carl Froehlich
If you want to use the snorkel, the AirFlow...

If you want to use the snorkel, the AirFlow Performance will not work (it hits the bottom of the cowl). I ordered my IO-360-M1B with the AirFlow system as I prefer it. Thunderbolt was nice enough...
Forum: RV General Discussion/News 03-11-2021, 02:42 PM
Replies: 5
Views: 697
Posted By Carl Froehlich
Kind of like Chevy or Ford... I’m a Hooker guy. ...

Kind of like Chevy or Ford...

I’m a Hooker guy. I have flown with Crow - but still prefer Hooker.

Carl
Forum: RV Building Tips/Techniques 03-10-2021, 05:57 PM
Replies: 22
Views: 1,152
Posted By Carl Froehlich
Strongly recommend getting the Knob Panel. This...

Strongly recommend getting the Knob Panel. This is used more than anything else.

Carl
Forum: RV Building Tips/Techniques 03-10-2021, 05:53 PM
Replies: 14
Views: 669
Posted By Carl Froehlich
It is a perfect place for the ADS-B antenna. I do...

It is a perfect place for the ADS-B antenna. I do suggest making a small doubler.

For the SkyView install, mount the ADS-B receiver in the same spot. Run a four #22 conductor shielded wire from...
Forum: RV Building Tips/Techniques 03-08-2021, 06:31 PM
Replies: 22
Views: 1,152
Posted By Carl Froehlich
Consider leaving a blank space in the center...

Consider leaving a blank space in the center section to add a IFR GPS navigator down the road.

Carl
Forum: Traditional Aircraft Engines 03-07-2021, 07:44 AM
Replies: 10
Views: 1,492
Posted By Carl Froehlich
Yep - the big decision. I was tempted to go to...

Yep - the big decision.

I was tempted to go to higher compression for this last build (IO-360-M1B) but in the end stayed with the stock 8.5.

My reason for looking at the higher compression was to...
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