VansAirForceForums  
Home > VansAirForceForums

- POSTING RULES
- Donate yearly (please).
- Advertise in here!

- Today's Posts | Insert Pics


Go Back   VAF Forums > Search Forums
Register FAQ Members List Calendar Search Today's Posts Mark Forums Read

Showing results 1 to 62 of 500
Search took 0.08 seconds.
Search: Posts Made By: Carl Froehlich
Forum: Electrical Systems Yesterday, 09:10 AM
Replies: 197
Views: 8,806
Posted By Carl Froehlich
Dan, Perfectly logical but I offer that keeping...

Dan,

Perfectly logical but I offer that keeping the engine running and/or continued IFR flight after a component failure, without pilot immediate action, is a trump card.

The one takeaway from this...
Forum: Electrical Systems Yesterday, 07:40 AM
Replies: 197
Views: 8,806
Posted By Carl Froehlich
Iím curious as to why there seems to be an...

Iím curious as to why there seems to be an aversion to the use of diodes. I use them on the output of my vacuum pad alternator so a fault on one avionics buss does not take down the other. Easy...
Forum: Northeast 05-23-2018, 07:52 AM
Replies: 7
Views: 491
Posted By Carl Froehlich
I always did over the top of JFK with flight...

I always did over the top of JFK with flight following, 7500í northbound, 8500í south bound. Going around to the east you end up too low or too far out over water. Going around on the west side is...
Forum: RV-14 05-22-2018, 04:46 PM
Replies: 13
Views: 828
Posted By Carl Froehlich
I ordered my IO-360-M1B with a pMag and the other...

I ordered my IO-360-M1B with a pMag and the other side blanked off. They did include the mag gear Iíll need for the second pMag. I have dual pMags on the RV-8A for 700 flawless hours and will soon...
Forum: Electrical Systems 05-22-2018, 12:29 PM
Replies: 197
Views: 8,806
Posted By Carl Froehlich
I offer that assuming you have not abused it, the...

I offer that assuming you have not abused it, the battery(s) is the most reliable element of your electrical power system. That reliability however ends at the battery terminals.

I also offer that...
Forum: RV General Discussion/News 05-21-2018, 03:02 PM
Replies: 15
Views: 969
Posted By Carl Froehlich
Use a robust strap to tie off the airplane to a...

Use a robust strap to tie off the airplane to a car/truck in case the engine over revs.

Have someone standy by on each side of the airplane with a fire extinguisher. Pre-brief what signal they will...
Forum: RV General Discussion/News 05-21-2018, 09:03 AM
Replies: 32
Views: 2,538
Posted By Carl Froehlich
The only plane most all wives seem happy with is...

The only plane most all wives seem happy with is the RV-10. Some seen happy with the RV-14 as a second choice.

My wife got tired of sitting in the back of my RV-8A so I built an RV-10. With time...
Forum: Electrical Systems 05-20-2018, 01:49 PM
Replies: 197
Views: 8,806
Posted By Carl Froehlich
Assuming you are careful in how you connect the...

Assuming you are careful in how you connect the two PC-625 batteries I offer that the extra Shorai battery is not needed, nor or the backup EFIS batteries.

Carl
Forum: RV General Discussion/News 05-20-2018, 01:38 PM
Replies: 5
Views: 400
Posted By Carl Froehlich
Had the same problem. Give them a call and send...

Had the same problem. Give them a call and send the set in for a software update. Fixed mine.

Carl
Forum: Electrical Systems 05-20-2018, 09:00 AM
Replies: 197
Views: 8,806
Posted By Carl Froehlich
Happy to share what Iíve been flying with for 16...

Happy to share what Iíve been flying with for 16 years in 4 planes. Just PM me your email address.

Carl
Forum: RV-10 05-19-2018, 07:52 AM
Replies: 7
Views: 675
Posted By Carl Froehlich
+1 Carl

+1

Carl
Forum: RV-10 05-18-2018, 02:16 PM
Replies: 7
Views: 546
Posted By Carl Froehlich
This is what I did. Note the use of copper wires...

This is what I did. Note the use of copper wires instead of steal pins for the...
Forum: RV-8/8A 05-18-2018, 10:57 AM
Replies: 8
Views: 743
Posted By Carl Froehlich
#6 welding cable for the alternator and #2...

#6 welding cable for the alternator and #2 welding cable for the starter greatly mitigate fatigue failure associated with the stiffer traditional cables.

Carl
Forum: Electrical Systems 05-18-2018, 09:45 AM
Replies: 197
Views: 8,806
Posted By Carl Froehlich
Iíve been running parallel batteries (normal...

Iíve been running parallel batteries (normal operations mode) for 16 years in four, soon to be five RVs.

For one application I have the output of the standby alternator feeding the left and right...
Forum: RV General Discussion/News 05-18-2018, 09:33 AM
Replies: 7
Views: 410
Posted By Carl Froehlich
I build out everything, take it all out, paint...

I build out everything, take it all out, paint what I can outside the plane, paint the rest as is in the plane, then reassemble.

The planes Iíve seen with the interior painted along the way all...
Forum: Primers 05-18-2018, 07:53 AM
Replies: 9
Views: 433
Posted By Carl Froehlich
If you use a good two part epoxy primer, skip the...

If you use a good two part epoxy primer, skip the alodine all together.

I do slow builds. After competing all part fabrication, fit up and dimpling, then it is time to prime. For prep I use...
Forum: Electrical Systems 05-17-2018, 05:38 PM
Replies: 197
Views: 8,806
Posted By Carl Froehlich
I shy away from any switch that does not have...

I shy away from any switch that does not have silver plated contacts. Here is example of a high current switch: https://www.alliedelec.com/switches/toggle-switches/?a10=NKK Switches&n8520=30 A

30A...
Forum: Electrical Systems 05-16-2018, 07:37 AM
Replies: 197
Views: 8,806
Posted By Carl Froehlich
Sorry I drifted from the topic. Directly...

Sorry I drifted from the topic.

Directly responding to electrical distribution, the examples so far discussed in this thread, in my opinion, fall short of what is reasonably possible if the builder...
Forum: Electrical Systems 05-15-2018, 06:18 PM
Replies: 197
Views: 8,806
Posted By Carl Froehlich
Let's be careful

While I understand repeating product literature is normally a good thing, I would not want builders to think the objective of cylinder mixture control is to achieve a specific CHT or EGT. This is...
Forum: Traditional Aircraft Engines 05-15-2018, 09:10 AM
Replies: 3
Views: 332
Posted By Carl Froehlich
Anyone using an engine pre-oiler/backup oil pump?

Would appreciate any operational experinece: http://infinityaerospace.com/product/other/pre-oiler-and-back-up-engine-oil-pump/

Carl
Forum: Traditional Aircraft Engines 05-14-2018, 09:48 AM
Replies: 5
Views: 374
Posted By Carl Froehlich
Assuming: - Ignition correct - Valve train...

Assuming:
- Ignition correct
- Valve train correct
- Compression checks correct
The only thing left is fuel. The point that you cannot lean to peak EGT translates to you are alway LOP. The engine...
Forum: RV-10 05-14-2018, 09:12 AM
Replies: 4
Views: 647
Posted By Carl Froehlich
I got a note from Brad that Iíll have two sets...

I got a note from Brad that Iíll have two sets this month.

Carl
Forum: RV General Discussion/News 05-13-2018, 07:53 PM
Replies: 1
Views: 257
Posted By Carl Froehlich
As the level changes shaply, it sounds like a...

As the level changes shaply, it sounds like a wiring issue.

As you check the wiring, donít forget to verify the sender case is really grounded. If not, run a separate ground lead to a wire with a...
Forum: RV General Discussion/News 05-13-2018, 12:48 PM
Replies: 19
Views: 1,162
Posted By Carl Froehlich
Battery is grounded to the same firewall ground...

Battery is grounded to the same firewall ground lug that you ground the engine.

A couple of things to check:
- Do you ground the engine on the starter ground lug or under some greasy engine bolt? ...
Forum: Engine Monitors 05-13-2018, 12:22 PM
Replies: 1
Views: 283
Posted By Carl Froehlich
Depending on the vendor and vintage, some EGT...

Depending on the vendor and vintage, some EGT probes have a problem with the pigtail connectors.

Before buying a new probe, you can try replaceing the pigtail connectors.

I keep a spare probe in...
Forum: RV-8/8A 05-13-2018, 12:18 PM
Replies: 4
Views: 500
Posted By Carl Froehlich
As you consider battery mounting locations for...

As you consider battery mounting locations for the RV-8, I recommend you do the math to estimate W&B for each option.

The best way I found to do this is to find a similarly equipped RV-8, then...
Forum: Electrical Systems 05-13-2018, 11:11 AM
Replies: 197
Views: 8,806
Posted By Carl Froehlich
Careful

Recommend you retain the start solenoid, not just wire directly to the starter from the battery.

Donít forget you will need to get the alternator charging current to your start battery. While you...
Forum: RV-7/7A 05-13-2018, 09:43 AM
Replies: 26
Views: 3,570
Posted By Carl Froehlich
The biggest mistake I made on my first RV was...

The biggest mistake I made on my first RV was putting a FP prop on it. At 300 hours I replaced it with a Hartzell BA prop. To say the change was dramatic fails to capture the impact. I was now...
Forum: RV-10 05-12-2018, 04:16 PM
Replies: 19
Views: 1,086
Posted By Carl Froehlich
I used the AirFlow systems 2006X cooler (same...

I used the AirFlow systems 2006X cooler (same dimensions as the one Vanís sells for the IO-540). Never had a high oil temp - and I did a hard test lifting off near Phoenix in the summer and climbing...
Forum: RV-14 05-12-2018, 11:20 AM
Replies: 31
Views: 1,953
Posted By Carl Froehlich
You could always ask a repeat builder to do it...

You could always ask a repeat builder to do it for you. Better yet, ask the repeat builder to be your supervisor and do it with his help. I offer that once you get into it the vail of mystery will...
Forum: RV-10 05-12-2018, 11:14 AM
Replies: 19
Views: 1,086
Posted By Carl Froehlich
I did not use the Van's oil cooler mount. ...

I did not use the Van's oil cooler mount. Looking at how the airflow changed direction by bouncing off the firewall, then changed direction after the cooler to conform to the exit airflow it looked...
Forum: Electrical Systems 05-11-2018, 05:21 PM
Replies: 3
Views: 499
Posted By Carl Froehlich
LED replacement for MR16 landing light bulbs

Looking for any experience with builders who have replaced the standard Vanís 75 watt halogen bulbs with MR16 LED bulbs.

Specifically, any problems with RFI? If not, what brand worked for you.

Carl
Forum: VAF Classifieds (posts in here deleted after 30 days) 05-10-2018, 03:03 PM
Replies: 0
Views: 999
Posted By Carl Froehlich
RV-8 for sale

If interested, PM me your email address and I'll provide details.

Carl
Forum: Traditional Aircraft Engines 05-10-2018, 12:43 PM
Replies: 39
Views: 4,313
Posted By Carl Froehlich
This is a worthwhile thread for everyone on...

This is a worthwhile thread for everyone on recognizing when the engine is telling you there is a problem.

With any igntion, mag checks are best done by observing EGT change. No matter what igntion...
Forum: RV-10 05-10-2018, 09:27 AM
Replies: 17
Views: 861
Posted By Carl Froehlich
No - if external use standard mounting...

No - if external use standard mounting screws.

On my RV-10 I mounted the GTN-650 and SkyView GPS antenna on top of the glareshield, one on each side. I added a piece of dark cloth over the GTN-650...
Forum: RV General Discussion/News 05-09-2018, 07:27 PM
Replies: 13
Views: 890
Posted By Carl Froehlich
Yep. Routinely get my IFR clearance going out of...

Yep. Routinely get my IFR clearance going out of VA42 using my phone to the Lightspeed headset via Bluetooth.

Carl
Forum: Electrical Systems 05-08-2018, 06:39 PM
Replies: 197
Views: 8,806
Posted By Carl Froehlich
Good thing I have my Nomex on.... Perhaps I...

Good thing I have my Nomex on....

Perhaps I should elaborate. Yep - single engine airplanes have specific single elements that can fail that will stop the fan. That does not mean we should close...
Forum: Electrical Systems 05-08-2018, 05:30 PM
Replies: 197
Views: 8,806
Posted By Carl Froehlich
+1 on Danís comment. Perhaps we should recognize...

+1 on Danís comment.

Perhaps we should recognize there is no free lunch. Any single component that is installed and must work to keep the engine running or the panel up in IFR is not a foundation...
Forum: RV General Discussion/News 05-08-2018, 11:35 AM
Replies: 23
Views: 2,248
Posted By Carl Froehlich
Part number is 5492K51. It is plastic - I just...

Part number is 5492K51. It is plastic - I just weighed one and it comes in at 0.8 oz.

Carl
Forum: RV General Discussion/News 05-08-2018, 08:31 AM
Replies: 23
Views: 2,248
Posted By Carl Froehlich
Yep - no harm to do that but the valve itself is...

Yep - no harm to do that but the valve itself is very light and the line run is short.

Carl
Forum: RV General Discussion/News 05-08-2018, 07:48 AM
Replies: 23
Views: 2,248
Posted By Carl Froehlich
How to keep bugs out and prevent ice blockage of fuel vents

I have a modified fuel vent system on my planes. There are two elements:
- A transition from 1/4Ē to 3/8Ē tubing to facilitate the vent end to have a screen to keep bugs out.
- A vacuum breaker...
Forum: RV General Discussion/News 05-07-2018, 06:08 PM
Replies: 23
Views: 2,248
Posted By Carl Froehlich
The tank should never have pressure or vacuum -...

The tank should never have pressure or vacuum - this is the definition of being ďventedĒ. Something is wrong and wrong enough to ground the plane.

Iíd first take off the vent line and see if it is...
Forum: Electrical Systems 05-07-2018, 03:54 PM
Replies: 197
Views: 8,806
Posted By Carl Froehlich
Perhaps you can explain what the diodes do for...

Perhaps you can explain what the diodes do for you. As both sets of diodes provide current flow for a fault on the engine buss, a straight wire would do the same. In other words, a fault on the...
Forum: Electrical Systems 05-07-2018, 09:19 AM
Replies: 41
Views: 1,597
Posted By Carl Froehlich
Joe, If the only reason you have the 5AH battery...

Joe,

If the only reason you have the 5AH battery is for engine start brown out, then disregard this note. The simple option for brown out is just start the engine with the panel off.

If you want...
Forum: RV General Discussion/News 05-06-2018, 09:27 AM
Replies: 17
Views: 731
Posted By Carl Froehlich
I never heard of bevels or leaving screws...

I never heard of bevels or leaving screws loose.

I built a lot of tanks with no leaks with a straightforward approach:
- I use the cork gasket on the inspection plate. I add pro seal to the cork...
Forum: RV-10 05-06-2018, 06:34 AM
Replies: 4
Views: 1,111
Posted By Carl Froehlich
I sold my RV-10 to downsize as well. Huge...

I sold my RV-10 to downsize as well. Huge mistake.

Carl
Forum: RV-8/8A 05-05-2018, 04:08 PM
Replies: 2
Views: 514
Posted By Carl Froehlich
Forward top skin tip

I fitted the top skin before cutting out the panel for the baggage door. While fitting I took the left over angle from rolling the lower fusleage skin to make a couple of hold bars between the...
Forum: Electrical Systems 05-05-2018, 12:27 PM
Replies: 41
Views: 1,597
Posted By Carl Froehlich
Sure - but perhaps go back to your objective for...

Sure - but perhaps go back to your objective for why you want to do this instead of just figuring out how to implement the one solution you selected. What are you using for a main battery? Many of...
Forum: Electrical Systems 05-05-2018, 09:38 AM
Replies: 41
Views: 1,597
Posted By Carl Froehlich
Wow

Iíve been following this discussion and wonder how we got to this point of complexity, and frankly very different camps on care and feeding of batteries.

For the builders out there now pulling their...
Forum: RV General Discussion/News 05-04-2018, 12:46 PM
Replies: 17
Views: 731
Posted By Carl Froehlich
Most RV float senders Iíve seen are just screwed...

Most RV float senders Iíve seen are just screwed in, no special effort to ground the sender. They seem to work.

I choose however to put a #22 wire (with lug) under one of the screw heads, then...
Forum: Electrical Systems 05-03-2018, 09:31 AM
Replies: 41
Views: 1,597
Posted By Carl Froehlich
Why not just remove the relay all together? That...

Why not just remove the relay all together? That way, with no pilot action, the aux battery will feed the avionics buss when the feed from the main buss goes away. The diode between the main buss...
Forum: RV-14 05-01-2018, 04:24 PM
Replies: 4
Views: 602
Posted By Carl Froehlich
Sounds like Vanís came up with a solution to the...

Sounds like Vanís came up with a solution to the problem of not enough room to set the pop rivet closest to the trailing edge!
Forum: Autopilots 05-01-2018, 03:28 PM
Replies: 21
Views: 2,673
Posted By Carl Froehlich
Perhaps we should consider this from Dynonís side...

Perhaps we should consider this from Dynonís side of the table. Just imagine all the calls they get, the problems they run down to wiring done wrong, configuration not done, etc. I do know they...
Forum: RV General Discussion/News 05-01-2018, 11:22 AM
Replies: 12
Views: 1,574
Posted By Carl Froehlich
Most likely if you are careful the end of the...

Most likely if you are careful the end of the orginal rivet will still be stuck in the proseal used during tank construction. Even if the end drops in the tank, the pickup strainer will keep it...
Forum: RV-10 05-01-2018, 10:26 AM
Replies: 18
Views: 1,323
Posted By Carl Froehlich
Is this after you adjusted the cap to seal...

Is this after you adjusted the cap to seal properly? The nut on the bottom is a locking nut. You adjust the seal gap (the O ring slot width) by loosening the nut and turning the bottom part of the...
Forum: RV-14 04-30-2018, 10:12 PM
Replies: 13
Views: 1,256
Posted By Carl Froehlich
Sure - on the road right now so give me a few...

Sure - on the road right now so give me a few days.

The pins are locked in place by using a 1/4Ē AN bulkhead fitting that has a 3Ē or so piece of 1/4Ē tubing that slides over the aft pin end so the...
Forum: RV-14 04-30-2018, 08:28 PM
Replies: 13
Views: 1,256
Posted By Carl Froehlich
The pins are routed via 1/4Ē aluminum tubing aft...

The pins are routed via 1/4Ē aluminum tubing aft of the firewall as a conduit. The pins then pass through a 3/16Ē rivet shank with a hole just big enough to allow the pins to slide. The rivet shank...
Forum: RV-10 04-30-2018, 10:47 AM
Replies: 22
Views: 4,307
Posted By Carl Froehlich
I too glass in all rib ends. There is no drag or...

I too glass in all rib ends. There is no drag or other gain in doing this, just pure aesthetics. As you point out, no need to do the inboard flap ribs.

Note - make sure you have a 1/4Ē or so drain...
Forum: RV-14 04-30-2018, 10:33 AM
Replies: 13
Views: 1,256
Posted By Carl Froehlich
Another option

On the last two planes I install the side pins so they come out the back into the cabin. This eliminates the pin cover issue.

Iíll do the same on the new RV-8 project.

Carl
Forum: RV-10 04-30-2018, 09:56 AM
Replies: 18
Views: 1,323
Posted By Carl Froehlich
I offer that your concerns are not founded. My...

I offer that your concerns are not founded.

My first RV is flying for 16 years with the orginal caps. Never a problem. The RV-10 is flying for 6 years. Never a problem.

I do carry a spare cap in...
Forum: Fuel Injection Systems 04-29-2018, 09:42 PM
Replies: 10
Views: 624
Posted By Carl Froehlich
This is opposite of convention; filter then fuel...

This is opposite of convention; filter then fuel pump.

Carl
Forum: RV-14 04-28-2018, 09:01 PM
Replies: 2
Views: 515
Posted By Carl Froehlich
Exactly correct. Same for the RV-10. Dimple the...

Exactly correct. Same for the RV-10. Dimple the skin, the doubler and the rib. Did this on three sets of wings and they came out perfect.

Carl
Showing results 1 to 62 of 500

 
Forum Jump

All times are GMT -6. The time now is 05:57 AM.


The VAFForums come to you courtesy Delta Romeo, LLC. By viewing and participating in them you agree to build your plane using standardized methods and practices and to fly it safely and in accordance with the laws governing the country you are located in.