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Search: Posts Made By: rocketbob
Forum: Midwest Today, 08:38 AM
Replies: 3
Views: 164
Posted By rocketbob
I just did my CFII checkride with Denny and know...

I just did my CFII checkride with Denny and know him well. He is hesitant to do checkrides in experimentals but if you send him some pics of the airplane and panel that could sway him. Texting is...
Forum: Temp / Test / Misc. (posts deleted after 2 weeks) 01-12-2022, 08:31 PM
Replies: 10
Views: 557
Posted By rocketbob
I have a bunch of different headlamps and found...

I have a bunch of different headlamps and found these are my favorite.

https://www.amazon.com/gp/product/B08S7RCGQ4
Forum: Propellers 01-10-2022, 11:06 AM
Replies: 74
Views: 6,475
Posted By rocketbob
I have several sets of orings for Hartzells on...

I have several sets of orings for Hartzells on hand. They are orange silicone orings and sourced from Hartzell. Not the four-lobe orings like you see here. Nitrile orings tend to dry and harden...
Forum: Safety 01-09-2022, 09:22 PM
Replies: 32
Views: 3,018
Posted By rocketbob
Yes. If you run it for a few...

Yes. If you run it for a few hours.

https://www.amazon.com/gp/product/B074MX8VN5/

I have one of these sitting inside the cowling of my Comanche with a moving blanket laying on top.

Just checked...
Forum: Electrical Systems 01-09-2022, 07:53 PM
Replies: 20
Views: 1,225
Posted By rocketbob
And I should clarify: never heard of a RV...

And I should clarify: never heard of a RV breaking a belt that a result of age or natural wear. :)
Forum: Electrical Systems 01-09-2022, 07:48 PM
Replies: 20
Views: 1,225
Posted By rocketbob
What was the cause?

What was the cause?
Forum: Electrical Systems 01-09-2022, 07:13 PM
Replies: 20
Views: 1,225
Posted By rocketbob
I don't know if you're reading much of the...

I don't know if you're reading much of the alternator posts on VAF but I've never seen/heard of anyone breaking a belt and its generally once a week someone posts about issues with a pad-driven...
Forum: Traditional Aircraft Engines 01-08-2022, 08:45 AM
Replies: 42
Views: 61,888
Posted By rocketbob
Larry Vetterman put me onto this setup years ago...

Larry Vetterman put me onto this setup years ago where you remove the troublesome vernatherm and add the oil cooler bypass spring and plunger along with a ball valve controlled with a push-pull...
Forum: Glass Cockpit 01-07-2022, 03:05 PM
Replies: 15
Views: 3,053
Posted By rocketbob
I have a current KLN94 in the airplane for IFR...

I have a current KLN94 in the airplane for IFR and would like to replace the 396 in the panel. The 660 would be a step up in situational awareness but I don't believe it would work with the GXM30...
Forum: Propellers 01-07-2022, 07:20 AM
Replies: 74
Views: 6,475
Posted By rocketbob
So. You grease them and they leak, then they...

So. You grease them and they leak, then they have to go out to get resealed. Then half of them come back having bad races (usually brinnelling) so the grease doesn't help that either. None of this...
Forum: Glass Cockpit 01-06-2022, 03:45 PM
Replies: 15
Views: 3,053
Posted By rocketbob
I've installed a couple of 175's and love that...

I've installed a couple of 175's and love that unit. The 660 seems to have many of the same features. Will it automatically sequence to the missed approach, show holds and entries like the 175?
Forum: Propellers 01-03-2022, 09:09 AM
Replies: 74
Views: 6,475
Posted By rocketbob
It is my opinion, based on my own experience,...

It is my opinion, based on my own experience, that these things are way over maintained which causes more problems than it solves despite the manufacturers recommendations. There is no regulatory...
Forum: Propellers 01-02-2022, 11:14 PM
Replies: 74
Views: 6,475
Posted By rocketbob
I have a paper manual in an original 3-ring...

I have a paper manual in an original 3-ring Hartzell binder that I purchased from Hartzell. Its a little strange for someone to accuse someone of using "pirated" tech data, not knowing anything...
Forum: Propellers 01-02-2022, 07:36 PM
Replies: 74
Views: 6,475
Posted By rocketbob
I've had numerous unused tubes of Aeroshell dry...

I've had numerous unused tubes of Aeroshell dry out and leak oil on the shelf.

A car can go 200K miles typically on a set of wheel bearings never requiring maintenance with a tiny amount of...
Forum: Propellers 01-02-2022, 04:26 PM
Replies: 74
Views: 6,475
Posted By rocketbob
Correct. I would not use Aeroshell #5 on my...

Correct. I would not use Aeroshell #5 on my mower let alone a certified aircraft. It is an old clay grease formulation that does not perform well.

I have a copy of the service manual that is only...
Forum: Propellers 01-02-2022, 11:09 AM
Replies: 74
Views: 6,475
Posted By rocketbob
Yes, dont grease. Its pointless. There's no way...

Yes, dont grease. Its pointless. There's no way to force old grease out without complete disassembly. There is so little movement that none of it really matters. I would be willing to bet a...
Forum: Propellers 01-02-2022, 10:48 AM
Replies: 74
Views: 6,475
Posted By rocketbob
I wont use Aeroshell 5 in my mower let alone an...

I wont use Aeroshell 5 in my mower let alone an airplane. I have dried up old stock tubes tubes that I've thrown in the trash. Greasing Hartzells ever year causes more problems than it prevents. ...
Forum: RV Building Tips/Techniques 12-29-2021, 08:20 PM
Replies: 29
Views: 3,280
Posted By rocketbob
On Piper Comanches explosive rivets were used on...

On Piper Comanches explosive rivets were used on the skins over the stabilator attach brackets. The shop head side is certainly strange in appearance and looking at them makes one think they are...
Forum: ADS-B 12-29-2021, 01:43 PM
Replies: 7
Views: 386
Posted By rocketbob
Actually this is not correct. To do a proper...

Actually this is not correct. To do a proper PAPR you need to be in rule airspace for 30 minutes. Above 10K, at or above class C, etc.
Forum: RV Building Tips/Techniques 12-27-2021, 01:25 PM
Replies: 22
Views: 1,604
Posted By rocketbob
I teach students the "3M" rule at shutdown. ...

I teach students the "3M" rule at shutdown. Mixture/Mags/Masters. Hard to miss one if you're always doing all three at once.
Forum: Traditional Aircraft Engines 12-26-2021, 08:56 AM
Replies: 24
Views: 3,578
Posted By rocketbob
Vlad steady diet of Aeroshell varnishes the...

Vlad steady diet of Aeroshell varnishes the insides.
Forum: Traditional Aircraft Engines 12-26-2021, 08:28 AM
Replies: 24
Views: 3,578
Posted By rocketbob
1. This is an early wide deck IO-360, not a...

1. This is an early wide deck IO-360, not a narrow deck.
2. Rings can wear to have full contact and be fine. You're gonna replace them anyways.
3. These are low time cylinders since last overhaul...
Forum: Job Board 12-24-2021, 08:41 AM
Replies: 10
Views: 1,662
Posted By rocketbob
I know of a travelling IA that takes on large...

I know of a travelling IA that takes on large projects and stays in a class A motorhome for a few weeks at a time. This one is restoring six Seabees.
Forum: RV Building Tips/Techniques 12-16-2021, 04:21 PM
Replies: 9
Views: 997
Posted By rocketbob
In the last month I have dealt with two fuel...

In the last month I have dealt with two fuel selectors in Cherokee 6's that have steel components inside that had pretty severe internal rust.
Forum: Electrical Systems 12-13-2021, 12:11 PM
Replies: 24
Views: 2,218
Posted By rocketbob
Disable/bypass the crowbar OV protection and see...

Disable/bypass the crowbar OV protection and see if the issue persists. Small transients can cause them to trip the breaker, but are too fast in duration to show in your voltmeter.
Forum: Fuel Injection Systems 12-13-2021, 11:55 AM
Replies: 8
Views: 738
Posted By rocketbob
4AN is the proper size from servo to divider.

4AN is the proper size from servo to divider.
Forum: Traditional Aircraft Engines 12-12-2021, 09:31 AM
Replies: 33
Views: 3,202
Posted By rocketbob
an electronic ignition can now be used to solve a...

an electronic ignition can now be used to solve a political problem. Awesome!
Forum: Midwest 12-10-2021, 10:07 AM
Replies: 7
Views: 594
Posted By rocketbob
good to have you back Frank! Call me and I will...

good to have you back Frank!

Call me and I will give you some options.
Forum: Electrical Systems 12-09-2021, 09:24 AM
Replies: 9
Views: 703
Posted By rocketbob
Schottkys are faster switching and are better...

Schottkys are faster switching and are better suited for this application. Recently I dealt with a keyswitch that had burned contacts internally due to arcing caused by a starter contactor. The...
Forum: Electrical Systems 12-08-2021, 10:21 AM
Replies: 9
Views: 703
Posted By rocketbob
Not sure what an NTE15 diode is. Generally...

Not sure what an NTE15 diode is. Generally snubber diodes are a good addition for preventing arcing in the switch when switching an inductive load. Not any diode is suitable, has to be a schottky...
Forum: RV General Discussion/News 12-06-2021, 06:50 AM
Replies: 14
Views: 1,454
Posted By rocketbob
I have used pressure washers on engines that were...

I have used pressure washers on engines that were full bird nests and mud and had zero problems. Taped up the vents on the mags and had at it.
Forum: RV Ongoing Maintenance Issues 12-04-2021, 07:19 PM
Replies: 27
Views: 3,969
Posted By rocketbob
My -6 mount had cracks so I made some rings to go...

My -6 mount had cracks so I made some rings to go around the OD of the sockets shaped such to fit around the tubes and welds. When I TIG welded everything the socket ID shrank which made the fit...
Forum: Electronic Ignition Systems 12-02-2021, 03:49 PM
Replies: 37
Views: 5,354
Posted By rocketbob
Thanks Don. Now I am remembering the AFP...

Thanks Don.

Now I am remembering the AFP innards. Slots cut with a wire EDM as opposed to the triangular holes in the Bendix.
Forum: Electronic Ignition Systems 12-02-2021, 12:13 PM
Replies: 37
Views: 5,354
Posted By rocketbob
This is true on the Bendix flow dividers but the...

This is true on the Bendix flow dividers but the AFP dividers have a completely different internal design.
Forum: RV General Discussion/News 12-02-2021, 11:58 AM
Replies: 35
Views: 5,756
Posted By rocketbob
I have an old Coleman Survivalcat I use in my...

I have an old Coleman Survivalcat I use in my Comanche. No open flame so pretty safe. That and a moving blanket taped to the cowl.
Forum: Glass Cockpit 12-01-2021, 05:26 PM
Replies: 5
Views: 547
Posted By rocketbob
175 will turn off roll steering when in approach...

175 will turn off roll steering when in approach mode. Assuming this applies to a GFC500. I don't know if this applies to the Dynon.

From the manual:

Roll steering terminates when
approach mode is...
Forum: RV-7/7A 12-01-2021, 04:23 PM
Replies: 18
Views: 1,093
Posted By rocketbob
Many inspectors retiring at the Indy FSDO. I was...

Many inspectors retiring at the Indy FSDO. I was told after December they will be down to two inspectors on the maintenance side.
Forum: Electrical Systems 12-01-2021, 01:17 PM
Replies: 32
Views: 2,318
Posted By rocketbob
I have more bench and portable multimeters and...

I have more bench and portable multimeters and oscilloscopes than a human probably should own. Those stay at home and I have a few of these that I...
Forum: Electrical Systems 12-01-2021, 12:37 PM
Replies: 17
Views: 1,249
Posted By rocketbob
zero noise from...

zero noise from these:

https://www.amazon.com/gp/product/B07DGNQNLR/
Forum: RV General Discussion/News 11-28-2021, 05:52 PM
Replies: 15
Views: 2,194
Posted By rocketbob
Last year I "added" a front main seal on a RV-6...

Last year I "added" a front main seal on a RV-6 that didn't have one. Flew like that for years.
Forum: RV Ongoing Maintenance Issues 11-26-2021, 04:43 PM
Replies: 51
Views: 7,395
Posted By rocketbob
Its not a matter if a TSO is required for an ELT...

Its not a matter if a TSO is required for an ELT but rather can an owner modify the ELT to use a regular battery. I argue yes, they can, because there is no provision requiring the ELT be maintained...
Forum: RV Ongoing Maintenance Issues 11-26-2021, 11:54 AM
Replies: 51
Views: 7,395
Posted By rocketbob
I'm sure someone will debate me on this but...

I'm sure someone will debate me on this but before you do please cite regulatory references backing up any claims. Since the airplane is experimental one can experiment with ELT batteries. There...
Forum: Alternative Engines 11-19-2021, 08:13 PM
Replies: 801
Views: 216,959
Posted By rocketbob
Fuel in oil is pretty common. As injectors age...

Fuel in oil is pretty common. As injectors age they bleed down at shutdown and some raw fuel ends up in the oil. Some cars like my Porsche 996 the fuel leaking out of the injectors when the engine...
Forum: ADS-B 11-19-2021, 05:35 PM
Replies: 44
Views: 7,273
Posted By rocketbob
I thought you had to be in rule airspace for a...

I thought you had to be in rule airspace for a valid PAPR. I've installed several ESGs and find them to be very reliable.
Forum: Traditional Aircraft Engines 11-18-2021, 12:38 PM
Replies: 13
Views: 1,541
Posted By rocketbob
The typical exhaust components will be gray from...

The typical exhaust components will be gray from lead staining. There is also an oiling hole in the exhaust rocker so oil drips on the rotator cap.
Forum: Traditional Aircraft Engines 11-18-2021, 09:14 AM
Replies: 13
Views: 1,541
Posted By rocketbob
I often find the exhaust pushrods more discolored...

I often find the exhaust pushrods more discolored with oxidized oil.
Forum: RV Ongoing Maintenance Issues 11-12-2021, 05:00 PM
Replies: 14
Views: 1,401
Posted By rocketbob
I have found these cracked and have done weld...

I have found these cracked and have done weld repairs on them. No subsequent problems.
Forum: RV General Discussion/News 11-05-2021, 07:56 AM
Replies: 53
Views: 6,420
Posted By rocketbob
The original designer of the TailMate is a friend...

The original designer of the TailMate is a friend of mine. In summary if there was money to be made selling them at a reasonable price, and demand was high enough, he or the subsequent owners would...
Forum: Fuel Injection Systems 11-02-2021, 02:27 PM
Replies: 26
Views: 19,792
Posted By rocketbob
Yep http://www.miravim.org/4RE/ http://www.mirav...

Yep

http://www.miravim.org/4RE/

http://www.miravim.org/4RE/AviationThrottleBodyInjectionEllisonRotec.pdf
Forum: Electrical Systems 10-28-2021, 08:35 AM
Replies: 42
Views: 5,026
Posted By rocketbob
If you didn't use the OEM Shorai charger which...

If you didn't use the OEM Shorai charger which charges and balances each individual cell in the battery its likely your charger is what did the battery in. Its advisable to carry the Shorai charger...
Forum: Electrical Systems 10-25-2021, 03:16 PM
Replies: 7
Views: 645
Posted By rocketbob
The rectifier diode prevents backfeeding the main...

The rectifier diode prevents backfeeding the main bus via the essential bus in the event of a major short. There is a voltage drop across the rectifier typically 1.2V. Newer schottky's have far...
Forum: Traditional Aircraft Engines 10-20-2021, 07:53 PM
Replies: 37
Views: 4,337
Posted By rocketbob
I haven't used anti-seize of any kind on plugs...

I haven't used anti-seize of any kind on plugs for years on any of the airplanes I maintain. The helicoils are stainless and its simply not necessary. This makes plug changes and compression checks...
Forum: Traditional Aircraft Engines 10-20-2021, 12:02 PM
Replies: 3
Views: 564
Posted By rocketbob
Airpower is my go-to for Lycoming parts and...

Airpower is my go-to for Lycoming parts and cylinders. I will only use Continental Prime Cerminil cylinders as I have had zero issues with them.
Forum: RV Ongoing Maintenance Issues 10-20-2021, 09:30 AM
Replies: 25
Views: 1,758
Posted By rocketbob
They wont run on 7psi, but you have to get the...

They wont run on 7psi, but you have to get the low pressure indication ironed out first. Unlikely both pumps are not putting out pressure. Look for a loose fitting upstream of the boost pump, could...
Forum: RV Ongoing Maintenance Issues 10-19-2021, 09:56 PM
Replies: 25
Views: 1,758
Posted By rocketbob
Dear Frustrated in MA, Carefully pull the air...

Dear Frustrated in MA,

Carefully pull the air side of the servo regulator and look for excessive blue staining/goo and clean up if found. In updraft installs of RSA servos there are a number of...
Forum: RV-8/8A 10-18-2021, 01:11 PM
Replies: 9
Views: 779
Posted By rocketbob
Many certified aircraft use resistive senders in...

Many certified aircraft use resistive senders in a summing (series) configuration to accurately gauge the tank when the tanks are full.
Forum: Traditional Aircraft Engines 10-13-2021, 01:38 PM
Replies: 9
Views: 2,361
Posted By rocketbob
on the opposite end of the scale

C172 I just did a prebuy on a month ago. Engine had 42 hours SMOH and was flown for 15 minutes every 6 weeks.

What not to do.
Forum: Autopilots 10-12-2021, 01:24 PM
Replies: 3
Views: 469
Posted By rocketbob
There is no way to do it with any iOS based...

There is no way to do it with any iOS based devices or aviation apps. Can be done with Avare on Android with a bluetooth RS232 adapter.
Forum: RV General Discussion/News 10-05-2021, 10:27 AM
Replies: 11
Views: 1,621
Posted By rocketbob
C182 eating tires is due to main gear alignment,...

C182 eating tires is due to main gear alignment, not balance. Shimmy can cause the nosewheel tire to wear unevenly. Shimmy is normally fixed by shimming the steering collar.
Forum: Traditional Aircraft Engines 10-02-2021, 05:50 PM
Replies: 4
Views: 547
Posted By rocketbob
This is incorrect. Lycoming, for some strange...

This is incorrect. Lycoming, for some strange reason, does not publish specs in any table of limits for lift or cam lobe dimensions.
Forum: Traditional Aircraft Engines 09-29-2021, 06:05 PM
Replies: 6
Views: 1,490
Posted By rocketbob
I've opened up mags and found them more destroyed...

I've opened up mags and found them more destroyed that this due to carbon dust arcing. Not saying this is the case here but I would test all of your leads with lead tester.
Forum: RV General Discussion/News 09-25-2021, 10:03 PM
Replies: 19
Views: 2,319
Posted By rocketbob
FischerSIPS Styrofoam I was the contractor. ...

FischerSIPS
Styrofoam

I was the contractor. SIPS construction is very simple.
Forum: RV General Discussion/News 09-25-2021, 08:13 PM
Replies: 19
Views: 2,319
Posted By rocketbob
If I were building a hangar today I would do the...

If I were building a hangar today I would do the following:

1. Slab with in-floor heat.
2. Walls would be constructed from SIPS panels.
3. Conventional wooden truss structure 4' on center with...
Forum: GPS 09-24-2021, 11:59 AM
Replies: 5
Views: 847
Posted By rocketbob
Yes I have gotten two G5's to work with a...

Yes I have gotten two G5's to work with a non-WAAS 430.
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