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Search: Posts Made By: rocketbob
Forum: RV General Discussion/News 02-24-2021, 09:39 AM
Replies: 26
Views: 927
Posted By rocketbob
Myflightbook.com will back up your logbook to an...

Myflightbook.com will back up your logbook to an excel file nightly to your preferred cloud drive provider and all your endorsements are included in image files. Once every few months I back those...
Forum: RV General Discussion/News 02-24-2021, 08:40 AM
Replies: 26
Views: 927
Posted By rocketbob
I use myflightbook.com and also have my students...

I use myflightbook.com and also have my students use it. Its very good especially for getting reports on ratings progress.
Forum: Glass Cockpit 02-23-2021, 06:49 PM
Replies: 17
Views: 968
Posted By rocketbob
My $.02. I would get a Mini with the...

My $.02.

I would get a Mini with the magnetometer, backup battery and database options and have it completely disconnected from the Garmin stuff for a true standalone backup system.
Forum: Reviews 02-21-2021, 10:13 PM
Replies: 16
Views: 1,749
Posted By rocketbob
On the Porsche M96 engines as injectors age they...

On the Porsche M96 engines as injectors age they leak down at shutdown. The fuel dribbles down into the bottoms of the cylinders which dilutes the oil and causes bore scoring.
Forum: RV-9/9A 02-19-2021, 08:16 PM
Replies: 7
Views: 577
Posted By rocketbob
ACS specifies the applicant demonstrates power-on...

ACS specifies the applicant demonstrates power-on stalls no less than 65% power. So you do not need to be at full power to demonstrate power-on stalls. You will have to communicate this with the...
Forum: RV Ongoing Maintenance Issues 02-19-2021, 08:10 PM
Replies: 13
Views: 682
Posted By rocketbob
There is no mystery here. It works or it...

There is no mystery here. It works or it doesn't.

Verify snap of impulse coupling on TDC #1 by looking thru top plug hole at piston with flashlight. Then check flywheel marks. Back off 35 deg or...
Forum: Electrical Systems 02-18-2021, 01:27 PM
Replies: 44
Views: 4,157
Posted By rocketbob
Nearest boat place to me is 30mi away. IMO...

Nearest boat place to me is 30mi away.

IMO ANL's are not worth having and can be easily replaced with a proper fabricated fusible link. Last year I replaced an alternator cable on an RV that was...
Forum: Electrical Systems 02-18-2021, 10:06 AM
Replies: 44
Views: 4,157
Posted By rocketbob
I think it would be better to fabricate a fusible...

I think it would be better to fabricate a fusible link rather than an ANL as the likelihood of finding an ANL fuse on a X/C trip would be slim to none unless you are carrying a spare.
Forum: RV General Discussion/News 02-18-2021, 08:59 AM
Replies: 13
Views: 1,206
Posted By rocketbob
Old mowers do well as tugs. I put a ball on my...

Old mowers do well as tugs. I put a ball on my zero-turn and that works well as a tug. Plus I still mow with it.

I also have an electric John Deere E-gator I bought dead for $300. New batteries...
Forum: RV-7/7A 02-15-2021, 08:44 AM
Replies: 38
Views: 8,583
Posted By rocketbob
Friend of mine has a VOR/ILS antenna made out of...

Friend of mine has a VOR/ILS antenna made out of a BNC bulkhead fitting and a piece of welding wire soldered onto it, installed in the wingtip. Total installed cost under $1.00. I did most of my IFR...
Forum: RV General Discussion/News 02-12-2021, 09:36 AM
Replies: 10
Views: 3,460
Posted By rocketbob
https://goo.gl/photos/J2LYRKMfiTbY7iAe6 Not in...

https://goo.gl/photos/J2LYRKMfiTbY7iAe6

Not in the pics but I turned a piece of copper slug the same width as the gearleg, stuck that in the sockets, clamped, and TIG welded the cracks. Then...
Forum: Traditional Aircraft Engines 02-11-2021, 11:59 AM
Replies: 163
Views: 35,857
Posted By rocketbob
1. Cranks can be ground undersize in different...

1. Cranks can be ground undersize in different journal diameters for overhaul. The smallest diameter permissible is the strength limit.
2. So you can overhaul them in the future.
3. Yes, by...
Forum: RV General Discussion/News 02-10-2021, 09:01 AM
Replies: 4
Views: 1,244
Posted By rocketbob
Is the tire replaceable?

Is the tire replaceable?
Forum: RV General Discussion/News 02-08-2021, 09:43 AM
Replies: 19
Views: 1,927
Posted By rocketbob
I'm always surprised at how people don't know how...

I'm always surprised at how people don't know how stuff works in this country. The way you go about ensuring your interests at a public airport is to make a modest political donation to the elected...
Forum: Traditional Aircraft Engines 02-07-2021, 09:56 AM
Replies: 2
Views: 234
Posted By rocketbob
As I recall the ECI oversized studs I used on a...

As I recall the ECI oversized studs I used on a OH had the oversize stamped on the ends of the studs. P1, P3, P5 etc.
Forum: VAF Classifieds (posts in here deleted after 30 days) 02-04-2021, 04:36 PM
Replies: 3
Views: 574
Posted By rocketbob
Hi Brian, I will take them all.

Hi Brian, I will take them all.
Forum: RV General Discussion/News 01-27-2021, 08:48 AM
Replies: 11
Views: 815
Posted By rocketbob
You can build one using a Carter P5000 and a...

You can build one using a Carter P5000 and a 25psi bypass valve.
Forum: RV General Discussion/News 01-21-2021, 11:34 PM
Replies: 18
Views: 1,896
Posted By rocketbob
A few years back I was bored in a hotel on a work...

A few years back I was bored in a hotel on a work trip and wanted to learn how to use...
Forum: Painting your RV 01-20-2021, 09:48 AM
Replies: 14
Views: 1,471
Posted By rocketbob
I would if they had a darker color. :)

I would if they had a darker color. :)
Forum: Safety 01-13-2021, 07:01 AM
Replies: 12
Views: 3,166
Posted By rocketbob
Nobody mentioned spray foam. lol

Nobody mentioned spray foam. lol
Forum: RV Ongoing Maintenance Issues 01-08-2021, 02:23 PM
Replies: 38
Views: 3,992
Posted By rocketbob
I don't see that happening on a 1515 as the plate...

I don't see that happening on a 1515 as the plate is pretty stout.

BTW Alex I was just in Wadena a few weeks ago.
Forum: RV Ongoing Maintenance Issues 01-08-2021, 11:10 AM
Replies: 38
Views: 3,992
Posted By rocketbob
Any blockage whether it was downstream, the...

Any blockage whether it was downstream, the filter blocked, check valve not functioning, etc. would have made the filter can expand which doesnt appear to be the case from the limited view of the...
Forum: Electrical Systems 01-08-2021, 10:09 AM
Replies: 22
Views: 1,809
Posted By rocketbob
Not an assortment but reasonably...

Not an assortment but reasonably priced.

https://www.ferrulesdirect.com/collections/ring-terminals/products/rnyds1-37

Double crimp with nylon, just like Amp PIDG but a lot less expensive. ...
Forum: RV Ongoing Maintenance Issues 01-08-2021, 07:22 AM
Replies: 38
Views: 3,992
Posted By rocketbob
What I thought also. I always use DC4 and am...

What I thought also.

I always use DC4 and am careful not to overtorque.
Forum: Safety 01-07-2021, 08:59 AM
Replies: 12
Views: 3,166
Posted By rocketbob
https://www.youtube.com/watch?v=yvP_0dRSKKs

https://www.youtube.com/watch?v=yvP_0dRSKKs
Forum: Safety 01-07-2021, 08:18 AM
Replies: 12
Views: 3,166
Posted By rocketbob
It is too broad of a statement to say "don't use...

It is too broad of a statement to say "don't use foam insulation." There are quite a few neoprene products available that neither absorb moisture nor rapidly propagate fires. Simple enough to test...
Forum: Traditional Aircraft Engines 01-06-2021, 09:13 AM
Replies: 11
Views: 1,342
Posted By rocketbob
Not any more. New 540 cams are $900 and change.

Not any more. New 540 cams are $900 and change.
Forum: RV Ongoing Maintenance Issues 01-05-2021, 10:21 PM
Replies: 32
Views: 3,317
Posted By rocketbob
https://www.aircraftspruce.com/catalog/eppages/cha...

https://www.aircraftspruce.com/catalog/eppages/challengerLifetime.php

Don't need no stinkin cutter tools with these. Really like these filters.
Forum: Traditional Aircraft Engines 01-05-2021, 05:17 PM
Replies: 11
Views: 1,342
Posted By rocketbob
Also if a reground cam is used, the price...

Also if a reground cam is used, the price difference between a new and used cam will be offset by the need to buy longer pushrods to get proper dry tappet clearance.

The newer DLC coated tappets...
Forum: Traditional Aircraft Engines 01-05-2021, 04:06 PM
Replies: 11
Views: 1,342
Posted By rocketbob
Brand new SL-18840 camshaft is $673.29 from...

Brand new SL-18840 camshaft is $673.29 from AirPower. Not worth the price difference to buy used.
Forum: Glass Cockpit 01-04-2021, 06:54 PM
Replies: 9
Views: 857
Posted By rocketbob
I removed a WX-10A system from my Comanche and...

I removed a WX-10A system from my Comanche and I'll bet the system with antenna and cables weighed every bit of 20lbs, maybe more.
Forum: ADS-B 01-02-2021, 11:21 AM
Replies: 12
Views: 1,034
Posted By rocketbob
I've done three ESG installs and three Tailbeacon...

I've done three ESG installs and three Tailbeacon installs in 2020. In every case we flew in rule airspace above class C airspace. No failed PAPR reports.
Forum: ADS-B 01-02-2021, 10:39 AM
Replies: 12
Views: 1,034
Posted By rocketbob
https://adsbperformance.faa.gov/PAPRRequest.aspx ...

https://adsbperformance.faa.gov/PAPRRequest.aspx

"For best results, ADS-B validation flights should be conducted within published areas of FAA ADS-B Coverage. Flying near the surface or at the...
Forum: ADS-B 01-02-2021, 09:31 AM
Replies: 12
Views: 1,034
Posted By rocketbob
You have to be in rule airspace for 30 minutes. ...

You have to be in rule airspace for 30 minutes. That is your issue. Your PAPR says Rule: 00:00:00
Forum: RV-4 01-01-2021, 12:47 PM
Replies: 7
Views: 1,139
Posted By rocketbob
Troy Grover would know. He had the...

Troy Grover would know. He had the molds.

https://www.grov-air.com/
Forum: Propellers 12-31-2020, 02:29 PM
Replies: 10
Views: 1,533
Posted By rocketbob
Because they are balanced laterally as well as on...

Because they are balanced laterally as well as on the longitudinal axis of the propeller.
Forum: RV Ongoing Maintenance Issues 12-31-2020, 09:09 AM
Replies: 63
Views: 7,520
Posted By rocketbob
The current ratings are not real world without...

The current ratings are not real world without substantial heat sinking and proper PCB trace sizing. A typical electric golf cart controller that can do 400A will have 50 or so mosfets paralleled...
Forum: Propellers 12-30-2020, 06:22 PM
Replies: 10
Views: 1,533
Posted By rocketbob
Its for balancing. A few wood prop manufacturers...

Its for balancing. A few wood prop manufacturers do it this way.
Forum: RV Ongoing Maintenance Issues 12-30-2020, 11:50 AM
Replies: 63
Views: 7,520
Posted By rocketbob
Just a guess here but typically mosfets fail to...

Just a guess here but typically mosfets fail to the shorted state. It would be interesting to see if the BMS is allowing excessive charging current to the cells, thus causing them to overheat, thus...
Forum: RV-4 12-29-2020, 12:40 PM
Replies: 40
Views: 12,689
Posted By rocketbob
I have done it successfully. They will reward...

I have done it successfully. They will reward you with excellent fuel distribution and lower fuel burn but it took quite an effort in engineering and experimentation to get it to work.
Forum: RV-14 12-27-2020, 09:15 AM
Replies: 21
Views: 2,141
Posted By rocketbob
Chances are high that you will never use your...

Chances are high that you will never use your extinguisher on your own aircraft but rather to save the lives of others. I carried two small extinguishers in my Comanche and had to use them both in...
Forum: Glass Cockpit 12-26-2020, 08:56 AM
Replies: 4
Views: 417
Posted By rocketbob
Yes it shows it. Arrow and windspeed. This is...

Yes it shows it. Arrow and windspeed. This is with the magnetometer.
Forum: ADS-B 12-22-2020, 03:40 PM
Replies: 40
Views: 2,138
Posted By rocketbob
The ACK A30 mod 8 and above encoder will support...

The ACK A30 mod 8 and above encoder will support serial output on pin 7; then power and ground. So three wires makes sense. The desired serial output format is set by an internal jumper.
Forum: Traditional Aircraft Engines 12-22-2020, 09:10 AM
Replies: 38
Views: 3,506
Posted By rocketbob
I don't believe this is correct but I'm sure you...

I don't believe this is correct but I'm sure you can prove me wrong. Its my understanding that if the pump has the aluminum impeller it only applies if the PN is 13775. The other aluminum...
Forum: Traditional Aircraft Engines 12-21-2020, 06:52 PM
Replies: 38
Views: 3,506
Posted By rocketbob
One was two piece and the other two were single...

One was two piece and the other two were single piece.
Forum: Traditional Aircraft Engines 12-20-2020, 10:29 AM
Replies: 38
Views: 3,506
Posted By rocketbob
I'm in the process of overhauling three different...

I'm in the process of overhauling three different engines right now. All three had aluminum oil pump impellers. All three came off certified aircraft with logs and had many annuals signed off...
Forum: ADS-B 12-19-2020, 07:29 PM
Replies: 40
Views: 2,138
Posted By rocketbob
Check your encoder wiring. The ESG should always...

Check your encoder wiring. The ESG should always indicate pressure altitude after the encoder "warms" up. Some encoders wont show altitude for a few minutes after powerup by design. If you take...
Forum: RV Ongoing Maintenance Issues 12-18-2020, 10:53 AM
Replies: 22
Views: 3,780
Posted By rocketbob
Its because the new ones use a much heavier...

Its because the new ones use a much heavier braided cable, which incidentally makes the cable tug more. I bought some clips on Amazon which work fine, but the part that clips onto the cable is not...
Forum: RV Ongoing Maintenance Issues 12-17-2020, 10:55 AM
Replies: 22
Views: 3,780
Posted By rocketbob
I opened both.

I opened both.
Forum: COMM 12-17-2020, 08:46 AM
Replies: 10
Views: 971
Posted By rocketbob
Radios have different receiver input impedances...

Radios have different receiver input impedances so unless nav radios are the same make/model then it takes a coupler with good isolation specs to make it work.
Forum: COMM 12-17-2020, 08:28 AM
Replies: 10
Views: 971
Posted By rocketbob
I have had similar issues with different...

I have had similar issues with different manufacturers of radios coupled via an antenna coupler to a VOR/GS antenna. The fix in that case was to use a new coupler from Mini Circuits which had far...
Forum: Traditional Aircraft Engines 12-16-2020, 09:04 AM
Replies: 163
Views: 35,857
Posted By rocketbob
It is my understanding that the cranks are gas...

It is my understanding that the cranks are gas nitrided after machining. The journals are polished after nitriding.
Forum: Traditional Aircraft Engines 12-15-2020, 05:23 PM
Replies: 163
Views: 35,857
Posted By rocketbob
Correct. If you read the meeting notes from the...

Correct. If you read the meeting notes from the FAA/SAP meeting they talk about the polishing process to remove the white layer. Doesn't say how they were doing it. I assume its done the...
Forum: RV General Discussion/News 12-14-2020, 08:35 AM
Replies: 7
Views: 585
Posted By rocketbob
Disclaimer, my setup is a Rotec. This is what I...

Disclaimer, my setup is a Rotec.

This is what I did to the spray bar.

Solder all the holes shut at the far end (all 0.4mm holes). I used a hot air soldering "iron" (its not) used for surface mount...
Forum: RV General Discussion/News 12-14-2020, 06:52 AM
Replies: 7
Views: 585
Posted By rocketbob
This is not correct. While I agree the flow is...

This is not correct. While I agree the flow is turbulent, which I fixed with a flow straightener, the reason for the WOT problem is due to the extra holes at the far end which causes the pressure in...
Forum: Traditional Aircraft Engines 12-13-2020, 08:09 PM
Replies: 163
Views: 35,857
Posted By rocketbob
I have a friend with one of these engines which I...

I have a friend with one of these engines which I will be tearing down very soon to deal with the crank.

Some googling reveals that the white layer of a nitrided part can be removed by a process...
Forum: Traditional Aircraft Engines 12-12-2020, 09:58 PM
Replies: 36
Views: 4,235
Posted By rocketbob
Since you verified the correct part #'s and...

Since you verified the correct part #'s and rotation the only other thing I'm guessing it could be is improper heat treatment of the pawls. No it is not normal for the gear to rock like that. The...
Forum: Traditional Aircraft Engines 12-12-2020, 04:30 PM
Replies: 36
Views: 4,235
Posted By rocketbob
Most likely you have the wrong impulse coupler or...

Most likely you have the wrong impulse coupler or the wrong magneto installed. Verify the dataplate first for correct direction of rotation.
Forum: Electrical Systems 12-08-2020, 09:39 PM
Replies: 23
Views: 2,594
Posted By rocketbob
When they work.

When they work.
Forum: Electrical Systems 12-08-2020, 05:49 PM
Replies: 23
Views: 2,594
Posted By rocketbob
Its a 35A unit that will put out 60A according to...

Its a 35A unit that will put out 60A according to the test sheets. Even the most fully equipped airplanes today with LED lighting will barely require 20A.
Forum: Electrical Systems 12-07-2020, 11:29 AM
Replies: 23
Views: 2,594
Posted By rocketbob
https://www.amazon.com/gp/product/B003V1BN60 Yet...

https://www.amazon.com/gp/product/B003V1BN60

Yet to have one fail. Todays price is $64.24. I have bought these in the past for $39.99.

So can someone tell me why a $700 alternator is better?
Forum: Safety 12-03-2020, 07:36 PM
Replies: 91
Views: 13,412
Posted By rocketbob
I got a chuckle out of this one. You all are...

I got a chuckle out of this one.

You all are spoiled!!

That wiring looks clean compared to most of the old airplanes I work on.

There's a straight shot at most of it thru a big hole while...
Forum: COMM 12-02-2020, 06:33 PM
Replies: 1
Views: 480
Posted By rocketbob
Yes. I still repair them. Email me...

Yes. I still repair them. Email me rocketbob@gmail.com
Forum: Propellers 11-24-2020, 09:33 PM
Replies: 3
Views: 461
Posted By rocketbob
If its polyurethane its likely made out of...

If its polyurethane its likely made out of castable polyurethane. It would be fairly straightforward to make a mold on a lathe or maybe 3D print a mold. Or you could have it 3D printed.
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