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Search: Posts Made By: Carl Froehlich
Forum: Electrical Systems Yesterday, 02:27 PM
Replies: 3
Views: 214
Posted By Carl Froehlich
Some thumb rules: - Less than 5 amps, use #20...

Some thumb rules:
- Less than 5 amps, use #20 wire
- 5-10 amps use #18
- Old school landing lights and such, #16 or #14
- LED landing lights, #18 wire (most cases)
- Pitot Heat, #16 or #14 (depending...
Forum: RV-8/8A Yesterday, 01:00 PM
Replies: 9
Views: 2,525
Posted By Carl Froehlich
Go into the Knuckles book and look up the cross...

Go into the Knuckles book and look up the cross section area. Then pick the cable that best matches.

I mounted one PC-625 in a modified stock battery mount in the per plans aft location, and the...
Forum: RV-8/8A Yesterday, 12:31 PM
Replies: 9
Views: 2,525
Posted By Carl Froehlich
I got my best deals on US made welding cable on...

I got my best deals on US made welding cable on eBay.

Carl
Forum: Electrical Systems 09-26-2022, 08:13 AM
Replies: 2
Views: 351
Posted By Carl Froehlich
Stop doing this. I’ve flown Odyssey PC-625...

Stop doing this. I’ve flown Odyssey PC-625 batteries for over 20 years and never used any maintenance/tender/etc. on them and the engine cranks every time. In other words you may be killing your...
Forum: RV General Discussion/News 09-25-2022, 11:04 AM
Replies: 142
Views: 30,206
Posted By Carl Froehlich
Or, when you replaced the fuel lines you fixed a...

Or, when you replaced the fuel lines you fixed a fuel line air leak. My experience is such leaks allowing air in have symptoms similar to vapor lock. The offending air leak was on the mechanical...
Forum: RV-10 09-23-2022, 09:14 AM
Replies: 9
Views: 645
Posted By Carl Froehlich
What Silpruf product did you guys use? Carl

What Silpruf product did you guys use?

Carl
Forum: RV-8/8A 09-23-2022, 09:08 AM
Replies: 10
Views: 550
Posted By Carl Froehlich
The days of on your back and head under the panel...

The days of on your back and head under the panel ended 20 years ago.

I completed all the top skin riveting before the first wire was run. The panel was completed on the bench and can be installed...
Forum: RV-8/8A 09-23-2022, 09:01 AM
Replies: 10
Views: 550
Posted By Carl Froehlich
This is important. Before you cut out the door...

This is important. Before you cut out the door area from the forward top skin, overlay 2 or 3 pieces of 0.063” 3/4”x3/4” aluminum angle between the firewall bulkhead and the next aft bulkhead. Once...
Forum: RV Photo/Video URLs 09-23-2022, 08:55 AM
Replies: 51
Views: 4,539
Posted By Carl Froehlich
It looks like I’ll be cleaning out the hangar...

It looks like I’ll be cleaning out the hangar paint booth and doing one more plane myself. Even with high end PPG urethane base and clear coat the last plane (just at two years ago) material cost me...
Forum: RV Photo/Video URLs 09-22-2022, 06:34 PM
Replies: 51
Views: 4,539
Posted By Carl Froehlich
Give me some numbers. Carl

Give me some numbers.

Carl
Forum: RV Photo/Video URLs 09-22-2022, 09:59 AM
Replies: 51
Views: 4,539
Posted By Carl Froehlich
What do such paint jobs cost these days? After...

What do such paint jobs cost these days? After painting three airplanes myself I’m looking at new options.

Carl
Forum: COMM 09-21-2022, 03:26 PM
Replies: 8
Views: 455
Posted By Carl Froehlich
I suspect TRIG will sell a lot of these. I'm...

I suspect TRIG will sell a lot of these. I'm putting one in the new RV-10 project to go with the GNC 355 TSO GPS navigator.

Carl
Forum: RV General Discussion/News 09-20-2022, 08:20 AM
Replies: 24
Views: 3,801
Posted By Carl Froehlich
My buddy Tom Doran and I primed first batch of...

My buddy Tom Doran and I primed first batch of fuselage parts for the new RV-10. As always, the prep before primer is the long pole in the...
Forum: RV-10 09-18-2022, 07:42 AM
Replies: 7
Views: 600
Posted By Carl Froehlich
What I did with the triangle type valves. I used...

What I did with the triangle type valves. I used a piece of Kool Mat between the valves and the firewall, holes cut out to match the valve outlet. I left the mat long with the excess going vertical...
Forum: RV-10 09-17-2022, 02:01 PM
Replies: 7
Views: 600
Posted By Carl Froehlich
Van's sells one for $150: ...

Van's sells one for $150: https://store.vansaircraft.com/cabin-vent-air-heat-box-stainless-vent-dl-01ss.html

Carl
Forum: RV General Discussion/News 09-17-2022, 09:23 AM
Replies: 27
Views: 6,020
Posted By Carl Froehlich
I’m on oxygen starting at 8K’. For a long cross...

I’m on oxygen starting at 8K’. For a long cross country even at 8K’ I feel tired the rest of the day without it.

I run the MH system with the AL-682 bottle: ...
Forum: RV-7/7A 09-17-2022, 08:31 AM
Replies: 11
Views: 573
Posted By Carl Froehlich
The Dynon pitot static kit has the ports, tubing...

The Dynon pitot static kit has the ports, tubing and fittings you need.

Put a port on each side of the fuselage per the Van’s plans. Run the tubing as needed to your ADHARS modules (pitot, static...
Forum: RV-14 09-15-2022, 05:31 PM
Replies: 4
Views: 796
Posted By Carl Froehlich
But don’t. The Van’s backplate may be in a...

But don’t. The Van’s backplate may be in a different postion relative to the rear of the spinner than the Hartzell spinner.

Use the backplate that comes with the Hartzell spinner to fit the cowl. I...
Forum: Instrument Flight Rules 09-15-2022, 04:56 PM
Replies: 7
Views: 660
Posted By Carl Froehlich
The issue I have is PS Engineering’s very nice...

The issue I have is PS Engineering’s very nice PDA 360EX audio panel I put into th the RV-8 (no marker beacon) seems to now be discontinued. I assume the replacement for the PDA 360EX is the...
Forum: Electronic Ignition Systems 09-14-2022, 06:23 PM
Replies: 3
Views: 561
Posted By Carl Froehlich
Call Brad at eMag. Carl

Call Brad at eMag.

Carl
Forum: RV-14 09-14-2022, 01:31 PM
Replies: 13
Views: 1,158
Posted By Carl Froehlich
Most pitch trim installs are not linear. Most...

Most pitch trim installs are not linear. Most pitch trim indicators do not have neutral in the middle of the scale. The current RV displays neutral at the bottom 1/4 of the scale. Put some...
Forum: RV-8/8A 09-14-2022, 08:38 AM
Replies: 8
Views: 1,016
Posted By Carl Froehlich
The short answer; the Show Planes kit will not...

The short answer; the Show Planes kit will not eliminate the finish kit other than the parts associated with the canopy and cowl itself. It will add a significant amount of work. For a first time...
Forum: GPS 09-13-2022, 09:01 AM
Replies: 20
Views: 1,050
Posted By Carl Froehlich
Yep - I have one “vital buss” running from the...

Yep - I have one “vital buss” running from the left battery to half the panel (EFIS #1, COMM #1, trim, etc.) and one “vital buss” running from the right battery to the other half (EFIS #2, COMM #2,...
Forum: GPS 09-13-2022, 08:02 AM
Replies: 20
Views: 1,050
Posted By Carl Froehlich
The “Avionics Buss” is whatever you want it to...

The “Avionics Buss” is whatever you want it to be. A wire fits the bill if you want.

The old school single switch that that turned on all the vacuum tubes has no place today - other than creating a...
Forum: RV-14 09-12-2022, 11:14 AM
Replies: 8
Views: 636
Posted By Carl Froehlich
Rivet call outs are good to start with, and you...

Rivet call outs are good to start with, and you will quickly be able to tell by a glance if the rivet it the right size or not.

Reminder - many per plans rivet call outs tend to be short. Don’t...
Forum: RV-10 09-11-2022, 11:16 AM
Replies: 13
Views: 1,104
Posted By Carl Froehlich
Robert, Check your PMs. Carl

Robert,
Check your PMs.

Carl
Forum: RV-10 09-11-2022, 11:09 AM
Replies: 13
Views: 1,104
Posted By Carl Froehlich
Sorry Robert, but you there is just not enough...

Sorry Robert, but you there is just not enough information to answer your questions. You will need to take out a stubby pencil and paper, trace out the wiring and draw.

I can tell you the 1965 era...
Forum: RV General Discussion/News 09-11-2022, 08:03 AM
Replies: 44
Views: 3,493
Posted By Carl Froehlich
+1 And it is simple to remove and replace the...

+1
And it is simple to remove and replace the valve stem cap with a 10mm socket.

Carl
Forum: RV Ongoing Maintenance Issues 09-10-2022, 01:33 PM
Replies: 13
Views: 993
Posted By Carl Froehlich
Does this airplane have a muffler? Carl

Does this airplane have a muffler?

Carl
Forum: RV General Discussion/News 09-10-2022, 11:55 AM
Replies: 44
Views: 3,493
Posted By Carl Froehlich
I carry a 1/4” drive handle with a 10mm socket in...

I carry a 1/4” drive handle with a 10mm socket in it. A tire mark pointing down when the stem is lined up with the wheel pant hole. I found this to work much better than the hose method - and the...
Forum: RV-10 09-10-2022, 07:43 AM
Replies: 13
Views: 1,104
Posted By Carl Froehlich
+1 I’ve recently had a discussion with a builder...

+1

I’ve recently had a discussion with a builder on this subject. No matter what the builder may think, he/she is building the airplane for the next owner. Take the time to document:
- Electrical...
Forum: RV General Discussion/News 09-07-2022, 06:28 AM
Replies: 60
Views: 5,934
Posted By Carl Froehlich
So I’m back into the engine compression decision process

I have a new CAS IO-540 on order from Thunderbolt (ordered 14 months ago, looks like another 6 months before I get it).

I was offered 9 to 1 pistons at no extra charge. They would give me a few...
Forum: RV Building Tips/Techniques 09-06-2022, 07:55 AM
Replies: 10
Views: 1,497
Posted By Carl Froehlich
I used the aft half of an old Hartzell hub (no...

I used the aft half of an old Hartzell hub (no blades) to fit the last two cowls. I compared it to the hub on the new Hartzell prop and it is identical. Mount the spinner backplate to it, then the...
Forum: Glass Cockpit 09-05-2022, 06:43 PM
Replies: 32
Views: 2,290
Posted By Carl Froehlich
If the Garmin was $12K less than the Dynon...

If the Garmin was $12K less than the Dynon SkyView I might go with it for the new plane….

Carl
Forum: Traditional Aircraft Engines 09-05-2022, 07:00 AM
Replies: 11
Views: 1,611
Posted By Carl Froehlich
Pete, The engine looks like it can go for a long...

Pete,

The engine looks like it can go for a long time.

Are you running ethanol free 91 mogas or E10?

Carl
Forum: Traditional Aircraft Engines 09-05-2022, 06:48 AM
Replies: 18
Views: 1,492
Posted By Carl Froehlich
Other than you no longer needed to scrape the...

Other than you no longer needed to scrape the sludge out of the oil pan….

Carl
Forum: RV-6/6A 09-05-2022, 06:40 AM
Replies: 11
Views: 995
Posted By Carl Froehlich
For nose up, the trailing edge of the trim tab is...

For nose up, the trailing edge of the trim tab is down.

Adjust the linkage to get the 35 degrees spec. While you are at it figure out why you are not getting full trim travel.

Carl
Forum: Glass Cockpit 09-04-2022, 06:35 PM
Replies: 13
Views: 751
Posted By Carl Froehlich
Dynon does support using a Hall Effect current...

Dynon does support using a Hall Effect current sensor. It discusses using the sensor from Grand Rapids in the install manual. If you really must have an amp meter I recommend this approach.

Carl
Forum: Glass Cockpit 09-04-2022, 06:12 PM
Replies: 13
Views: 751
Posted By Carl Froehlich
Three full SkyView installs and the EMS shunts...

Three full SkyView installs and the EMS shunts are still in the box. Hard for me to break one that way.

Carl
Forum: RV General Discussion/News 09-03-2022, 08:43 AM
Replies: 6
Views: 538
Posted By Carl Froehlich
Being counterbalanced for flutter does not equate...

Being counterbalanced for flutter does not equate to static balance along the hinge line. Same applies to things like RV-10 elevators that do come with enough lead to statically balance them. On my...
Forum: Electrical Systems 09-02-2022, 08:16 PM
Replies: 11
Views: 854
Posted By Carl Froehlich
In simple terms, DC ground and RF ground are very...

In simple terms, DC ground and RF ground are very different. A DC ground can be an open at RF.

Carl
Forum: VAF Classifieds (posts in here deleted after 30 days) 09-02-2022, 02:14 PM
Replies: 7
Views: 1,242
Posted By Carl Froehlich
There is a car property tax - but not...

There is a car property tax - but not bad.

Airplane property taxes are by county. For Dogwood (Stafford County) the annual property tax is $0.

Carl
Forum: RV Building Tips/Techniques 09-02-2022, 10:15 AM
Replies: 11
Views: 616
Posted By Carl Froehlich
Dan - you continue to be a wealth of...

Dan - you continue to be a wealth of information.

Carl
Forum: VAF Classifieds (posts in here deleted after 30 days) 09-02-2022, 07:53 AM
Replies: 7
Views: 1,242
Posted By Carl Froehlich
Total property tax for 2022 was $4958.90. Carl

Total property tax for 2022 was $4958.90.

Carl
Forum: VAF Classifieds (posts in here deleted after 30 days) 09-02-2022, 07:47 AM
Replies: 7
Views: 1,242
Posted By Carl Froehlich
Yes, it is. Carl

Yes, it is.

Carl
Forum: RV-8/8A 09-01-2022, 05:01 PM
Replies: 7
Views: 892
Posted By Carl Froehlich
Engine start and taxi; canopy open half way (on...

Engine start and taxi; canopy open half way (on the latch).
Anything else, canopy fully shut and locked.

Carl
Forum: VAF Classifieds (posts in here deleted after 30 days) 09-01-2022, 04:49 PM
Replies: 9
Views: 339
Posted By Carl Froehlich
EBay, $100. ...

EBay, $100. https://simhq.com/store/EXPBUS-II-Switch-and-DC-Load-Center-Control-Vision-Experimental-Aircraft_254935146226.html

But - I suggest using this failure as motivation to remove it all...
Forum: VAF Classifieds (posts in here deleted after 30 days) 09-01-2022, 09:25 AM
Replies: 7
Views: 1,242
Posted By Carl Froehlich
Dogwood (VA42) home and hangar for sale

Posting for a neighbor.

Side note: this is about the only practical way to live in an airpark and commute to DC if needed. If you fly for United you can join the other United pilots at Dogwood....
Forum: Reviews 09-01-2022, 09:15 AM
Replies: 29
Views: 1,725
Posted By Carl Froehlich
As I’ve posted in the past, my mantra...

As I’ve posted in the past, my mantra remains:
“If you can build it you can wire it and build your own panel”

For my projects I purchased all the avionic components as a bundle from Stein and I...
Forum: RV-8/8A 08-31-2022, 04:58 PM
Replies: 19
Views: 1,614
Posted By Carl Froehlich
The RV-8 design provides for a wire run on both...

The RV-8 design provides for a wire run on both port and starboard sides under the canopy rail. Look at the holes at the top of the side ribs - these accept snap bushings.

On the current RV-8 I...
Forum: Electrical Systems 08-31-2022, 11:42 AM
Replies: 3
Views: 601
Posted By Carl Froehlich
Stereo headsets have a switch to select mono or...

Stereo headsets have a switch to select mono or stereo for this reason.

Carl
Forum: RV-10 08-30-2022, 01:30 PM
Replies: 7
Views: 531
Posted By Carl Froehlich
Great. Thanks. Carl

Great. Thanks.
Carl
Forum: RV-10 08-30-2022, 10:26 AM
Replies: 7
Views: 531
Posted By Carl Froehlich
Not really. Some did clockwise others did...

Not really. Some did clockwise others did counter clockwise.

What comes from Van’s on the governor in the FWF kit?

Carl
Forum: RV-10 08-30-2022, 08:03 AM
Replies: 7
Views: 531
Posted By Carl Froehlich
RV-10 governor

Buying a PCU-5000 governor for the new RV-10 project - and don’t remember if it the control lever is clockwise or counter clockwise.

Can someone take a look?
Carl
Forum: RV-7/7A 08-29-2022, 02:13 PM
Replies: 14
Views: 1,279
Posted By Carl Froehlich
Shoot fire - I have no experience with 6, 6A, 7...

Shoot fire - I have no experience with 6, 6A, 7 or 7A - but I can read Van’s numbers and these speeds appear short of the mark. As discussed, first step is to figure out CAS to IAS doing the GPS...
Forum: RV Building Tips/Techniques 08-29-2022, 10:46 AM
Replies: 9
Views: 1,133
Posted By Carl Froehlich
What I do for interior paint: - Do not prime...

What I do for interior paint:
- Do not prime anything during the build that later gets a topcoat. This means that you may need to mask off some stuff before priming, then assembly.
- Any "build...
Forum: RV-7/7A 08-29-2022, 09:54 AM
Replies: 14
Views: 1,279
Posted By Carl Froehlich
Assuming standard atmospheric pressure, ~60...

Assuming standard atmospheric pressure, ~60 degrees OAT and reasonable accurate IAS, this 135kts IAS equates to ~145kts TAS.

This is slow for an RV-7A.

Do a GPS run to verify IAS. If correct, look...
Forum: RV-6/6A 08-29-2022, 08:40 AM
Replies: 11
Views: 995
Posted By Carl Froehlich
And verify the trim tab deflection meets...

And verify the trim tab deflection meets specs.

If you did not build this plane, I suggest you look to see if the builder added another shim under the HS forward spar. This was not uncommon - I did...
Forum: RV-8/8A 08-28-2022, 07:56 PM
Replies: 19
Views: 1,614
Posted By Carl Froehlich
Did the same for the GTN-650 antenna on the RV-8A...

Did the same for the GTN-650 antenna on the RV-8A and RV-8. The SkyView GPS antenna is happy on top of the glare shield - covered with a piece of dark cloth to prevent glare on the canopy.

Carl
Forum: RV General Discussion/News 08-28-2022, 12:30 PM
Replies: 12
Views: 711
Posted By Carl Froehlich
Andre, I wondering how you decided the antenna...

Andre,

I wondering how you decided the antenna is a problem. These antennas are dirt simple, a quarter wave element with a mount and coax connector. Unless damaged or you have a bad feed line they...
Forum: RV-10 08-27-2022, 04:21 PM
Replies: 6
Views: 882
Posted By Carl Froehlich
I'm using the MH AL682 cylinder and the...

I'm using the MH AL682 cylinder and the associated nylon carrying bag. The tank gets strapped to the top of the tunnel cover, straps modified to secure under four tunnel over screws (with tinderman...
Forum: RV General Discussion/News 08-26-2022, 12:08 PM
Replies: 9
Views: 540
Posted By Carl Froehlich
And follow up from the bucking bar guy if the...

And follow up from the bucking bar guy if the rivet is not done:
- again
- give me a short
- give me a real short
- good

Carl
Forum: COMM 08-26-2022, 09:24 AM
Replies: 30
Views: 1,880
Posted By Carl Froehlich
Stand alone. For two Comm radios you do add a...

Stand alone. For two Comm radios you do add a single DPDT switch to select the radio you want to talk on. This is covered in the install manual.

Carl
Forum: COMM 08-26-2022, 08:50 AM
Replies: 30
Views: 1,880
Posted By Carl Froehlich
The simple Dynon audio panel is less than $300,...

The simple Dynon audio panel is less than $300, and will do everything you need.
https://www.aircraftspruce.com/pages/in/dynon_0skyview_4com/dynon-sv-int-2s.php

Carl
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