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Search: Posts Made By: BobTurner
Forum: ADS-B Yesterday, 12:41 AM
Replies: 3
Views: 272
Posted By BobTurner
EAB aircraft are eligible. But ‘experimental’...

EAB aircraft are eligible.
But ‘experimental’ (e.g., non TSO’d) ADSB boxes are not.
Forum: RV General Discussion/News 12-15-2018, 02:50 PM
Replies: 15
Views: 1,594
Posted By BobTurner
I recently got a new car, and it has no spare....

I recently got a new car, and it has no spare. Instead, there’s a device for injecting some kind of sealing compound, and a small compressor. Any idea if something like this would work on an airplane...
Forum: RV General Discussion/News 12-15-2018, 01:00 PM
Replies: 2
Views: 510
Posted By BobTurner
By the way, the official FAA term is now ‘Flight...

By the way, the official FAA term is now ‘Flight Review’. They dropped the B because no one could spell ‘biennial’ correctly. But personally I prefer the way BFR sounds, it has a certain ring to it.
Forum: RV General Discussion/News 12-14-2018, 09:16 PM
Replies: 17
Views: 1,329
Posted By BobTurner
Just to be clear, it will look faster because...

Just to be clear, it will look faster because your true airspeed really will be faster. But you need that extra speed, to make up for the lower air density. Your airspeed indicator (IAS) will...
Forum: ADS-B 12-14-2018, 02:02 PM
Replies: 14
Views: 853
Posted By BobTurner
Did you mean ‘out’? Where did you get the idea...

Did you mean ‘out’?
Where did you get the idea safety was involved? Remember adsb-in is not required, and wasn’t even in the original proposal. ADSB is about long term cost savings for the FAA, by...
Forum: RV General Discussion/News 12-14-2018, 01:30 PM
Replies: 17
Views: 1,329
Posted By BobTurner
Don’t forget to lean for best power for take off...

Don’t forget to lean for best power for take off - but watch CHTs too. (Assuming the usual density altitude over 5000’)
Forum: ADS-B 12-14-2018, 02:07 AM
Replies: 13
Views: 651
Posted By BobTurner
The WAAS signal basically is a bunch of numbers...

The WAAS signal basically is a bunch of numbers which describe the current state of the ionosphere, in various locations around the US. (The ionosphere is electrically active, and radio signals...
Forum: RV General Discussion/News 12-13-2018, 11:21 PM
Replies: 3
Views: 263
Posted By BobTurner
Is that SFO? I’ll look next time I’m at the...

Is that SFO? I’ll look next time I’m at the hangar.
Forum: ADS-B 12-13-2018, 11:13 PM
Replies: 13
Views: 651
Posted By BobTurner
It’s more than waas. The spec writters went nuts;...

It’s more than waas. The spec writters went nuts; besides sending position, velocity vector, altitude, there are all kinds of error checking, error reporting, etc., requirements. But Trig, GRT,...
Forum: ADS-B 12-13-2018, 10:33 PM
Replies: 13
Views: 651
Posted By BobTurner
1. I understood your question differently. Are...

1. I understood your question differently. Are you asking, ‘Is there a stand-alone box that will receive the WAAS signal, then port that data over to a non-waas gps, and get a corrected position...
Forum: Instrument Flight Rules 12-13-2018, 02:47 PM
Replies: 22
Views: 1,380
Posted By BobTurner
Following up on a previous post: I have seen FAA...

Following up on a previous post: I have seen FAA guidance that, on an instrument checkride, an LPV approach to below 300’agl counts as a precision approach, while an LPV to above 300’ agl can count...
Forum: Instrument Flight Rules 12-13-2018, 02:37 PM
Replies: 22
Views: 1,380
Posted By BobTurner
+1. My poorly expressed opinion was that,for me,...

+1. My poorly expressed opinion was that,for me, I felt I needed to spend considerably more money for equipment that adds no function or ease of use — that is, unless my two main efis units, or 420W,...
Forum: Glass Cockpit 12-13-2018, 02:22 PM
Replies: 6
Views: 667
Posted By BobTurner
To the OP: It sounds like you have a fair time to...

To the OP: It sounds like you have a fair time to go before completion. If so, I’m sure you’ve read the standard advice: dream, but hold off actual purchases until as close to the end as possible....
Forum: ADS-B 12-13-2018, 01:59 PM
Replies: 14
Views: 853
Posted By BobTurner
I second (or third) the recommendation for...

I second (or third) the recommendation for adsb-in. Make sure everything works together. e.g., if going for an MGL display what adsb-in sources does it support? Also, will it supply the Trig with...
Forum: RV General Discussion/News 12-13-2018, 01:39 PM
Replies: 43
Views: 10,217
Posted By BobTurner
I find this idea of ‘brand loyalty’ somewhat...

I find this idea of ‘brand loyalty’ somewhat strange.My panel has products from Dynon, GRT, Garmin, Trig, home-built, ... Each chosen because in my opinion it was the best value to do the job...
Forum: Instrument Flight Rules 12-11-2018, 07:47 PM
Replies: 22
Views: 1,380
Posted By BobTurner
Most people can find a VOR, LOC, and ILS...

Most people can find a VOR, LOC, and ILS approaches somewhere nearby. They count as three. Unfortunately, GPS-WAAS only gives you two. Non-WAAS, one.

For those comparing the SL-30 to the VAL nav,...
Forum: Instrument Flight Rules 12-11-2018, 04:18 PM
Replies: 22
Views: 1,380
Posted By BobTurner
No, wrong question. IFR is serious business. The...

No, wrong question. IFR is serious business. The correct question is, “How much redundancy is needed for you to feel safe?” Obviously this is a subjective question, and requires some knowledge of how...
Forum: COMM 12-10-2018, 06:58 PM
Replies: 9
Views: 346
Posted By BobTurner
It’s been five decades since I was an active ham,...

It’s been five decades since I was an active ham, but my (failing) memory is that amateur transmitters were set up for crystal mikes - quite different from standard aircraft mikes (no bias voltage...
Forum: Instrument Flight Rules 12-10-2018, 06:48 PM
Replies: 22
Views: 1,380
Posted By BobTurner
So many things wrong with the idea of inexpensive...

So many things wrong with the idea of inexpensive ifr...
One EFIS? What will you do if it dies? If it loses its mind (the horizon) how will you even know?
The inexpensive old GPS units mentioned are...
Forum: RV-10 12-10-2018, 11:03 AM
Replies: 5
Views: 300
Posted By BobTurner
The above is correct for a variant called a...

The above is correct for a variant called a ‘folded dipole’. For an ideal simple dipole, the feed point impedance is 73 ohms, close enough to 50 ohms for your purposes. It will be directional, with...
Forum: RV-3 12-09-2018, 01:32 AM
Replies: 4
Views: 328
Posted By BobTurner
Go to the VansAircraft web site, click on news...

Go to the VansAircraft web site, click on news and events, then news.
Basically, the RV-3 has been discontinued as an in-stock kit, and will be more like an on-demand, special order kit, with long...
Forum: ADS-B 12-08-2018, 10:58 PM
Replies: 229
Views: 35,033
Posted By BobTurner
If you fly in ADSB-out required airspace, you...

If you fly in ADSB-out required airspace, you must have it, effective 13 months from now. But, once installed, you must run it 100% of the time, regardless of what airspace you’re in, and it must...
Forum: COMM 12-08-2018, 04:19 PM
Replies: 4
Views: 251
Posted By BobTurner
Diagnosing avionics via remote vision is very...

Diagnosing avionics via remote vision is very hard. But, my suggestion: Since ATC said you sounded okay, I don’t think this is an antenna issue. if your audio panel has ‘fail safe’, turn it off....
Forum: Electrical Systems 12-05-2018, 06:48 PM
Replies: 7
Views: 371
Posted By BobTurner
+1 Pull gently on the jumpers and make sure one...

+1
Pull gently on the jumpers and make sure one isn't loose. Also, watch output connections when power is on (don't touch!) and see if one is arcing to ground.
Forum: RV-14 12-03-2018, 02:42 PM
Replies: 24
Views: 1,610
Posted By BobTurner
I think the -14 wing is like the -10, if so,...

I think the -14 wing is like the -10, if so, you’re doing it backwards.
1. Flaps up should be against the aft spar.
2. Ailerons match flaps (make sure elevator is neutral)
3. Adjust tips to match...
Forum: VAF Classifieds (posts in here deleted after 30 days) 12-02-2018, 09:09 PM
Replies: 20
Views: 1,529
Posted By BobTurner
Were you flying in what the faa calls ‘rule’...

Were you flying in what the faa calls ‘rule’ airspace?
Forum: RV-10 12-02-2018, 03:54 PM
Replies: 22
Views: 3,098
Posted By BobTurner
Are you saying you are unable to get to the nose...

Are you saying you are unable to get to the nose up control stop? If so you have an issue to be addressed. OTOH some -10’s, when flown solo, may be forward of the forward cg limit unless some weight...
Forum: VAF Classifieds (posts in here deleted after 30 days) 12-01-2018, 08:10 PM
Replies: 20
Views: 1,529
Posted By BobTurner
You don’t need anything to fail. At my home field...

You don’t need anything to fail. At my home field (LVK) we’re within the mode C veil for SFO but in a valley - radar coverage does not extend to the surface. I *think* the sniffer units default to...
Forum: COMM 12-01-2018, 11:40 AM
Replies: 3
Views: 346
Posted By BobTurner
Since OP says audio works fine I doubt it’s a...

Since OP says audio works fine I doubt it’s a mono-stereo thing.
1. Get under the panel and observe the jack as you insert the mike plug. Is there any interference? Sometimes the moving parts hit...
Forum: VAF Classifieds (posts in here deleted after 30 days) 12-01-2018, 11:23 AM
Replies: 20
Views: 1,529
Posted By BobTurner
Check...

Check
grtavionics.com/home/compatible-equipment/ads-b-options/
for a list of compatible equipment. I presume you know of the limitations if you don’t have adsb-out. If you are planning on adsb-out...
Forum: Glass Cockpit 11-30-2018, 03:02 PM
Replies: 16
Views: 1,706
Posted By BobTurner
Gil, I think Carl meant he uses a backup buss for...

Gil, I think Carl meant he uses a backup buss for both the gps and efis. Regardless, you still need to plan for the “what if?” possibility of equipment failure other than power loss -whether primary...
Forum: COMM 11-29-2018, 04:30 PM
Replies: 16
Views: 896
Posted By BobTurner
Hi Mark, Don’t worry, I still think PS makes the...

Hi Mark,
Don’t worry, I still think PS makes the best audio equipment out there. (There have been times when the competition was so bad, I don’t understand why anyone would buy their stuff. But...
Forum: RV General Discussion/News 11-27-2018, 07:20 PM
Replies: 55
Views: 15,763
Posted By BobTurner
Don, is the "making $180 per hour" really...

Don, is the "making $180 per hour" really correct? Did he provide the airplane? Many pilots seem completely unaware of what it costs to instruct in the CFI's EAB airplane. Who paid for his time to do...
Forum: RV-9/9A 11-27-2018, 06:53 PM
Replies: 41
Views: 4,470
Posted By BobTurner
Keep in mind that a properly installed (but...

Keep in mind that a properly installed (but standard) pitot system will read lower than an ideal airspeed indicator at low speeds, due to the non-zero angle of attack on the pitot tube. Low speed...
Forum: ADS-B 11-27-2018, 06:50 PM
Replies: 4
Views: 496
Posted By BobTurner
As Bob says, above. But, double check that your...

As Bob says, above.
But, double check that your ADSB-out is correctly configured to show your ADSB-in capability - one frequency or two frequencies.
Forum: RV General Discussion/News 11-27-2018, 06:44 PM
Replies: 21
Views: 914
Posted By BobTurner
BTW, if the above quote implies that you need...

BTW, if the above quote implies that you need regular, scheduled travel (work?), then you should definitely plan on getting an instrument rating. And have an airline alternative available. And have...
Forum: RV General Discussion/News 11-27-2018, 06:37 PM
Replies: 21
Views: 914
Posted By BobTurner
My standard advice: try the toolbox kit, maybe...

My standard advice: try the toolbox kit, maybe even the tail kit. If you enjoy the work, great. I and many others found it rewarding. But if you find that's it's actually unenjoyable work, stop. Life...
Forum: ADS-B 11-27-2018, 06:30 PM
Replies: 5
Views: 328
Posted By BobTurner
+1 on the Trig TT-22 (do not buy the TT-21, it's...

+1 on the Trig TT-22 (do not buy the TT-21, it's not legal for ADSB in the US). For a gps position source, it can read Garmin's ADSB+ output from a 400W, 500W, 650, or 750 series IFR GPS....
Forum: COMM 11-27-2018, 06:19 PM
Replies: 16
Views: 896
Posted By BobTurner
NOT what you asked, but: Have you considered a...

NOT what you asked, but: Have you considered a good intercom, with lots of unswitched inputs, instead of a full blown audio panel? Plus a single DPDT switch to move from com1 to com2? "switch"...
Forum: Glass Cockpit 11-26-2018, 12:03 PM
Replies: 14
Views: 533
Posted By BobTurner
You only tie the wires together, or cut off the...

You only tie the wires together, or cut off the orange one, if you have the GRT set to “Pull up ON”. Internal to the grt, there is a 12 volt power supply, which is connected to the analog port by a...
Forum: Glass Cockpit 11-26-2018, 12:21 AM
Replies: 14
Views: 533
Posted By BobTurner
The HX analog inputs don’t sense ‘wires’, they...

The HX analog inputs don’t sense ‘wires’, they sense voltage. Since the orange and green wires are tied together, and are good conductors, they will both be at the same voltage, and that voltage is...
Forum: RV General Discussion/News 11-25-2018, 10:48 PM
Replies: 5
Views: 477
Posted By BobTurner
+1 Turn down the volume on the standby radio to...

+1
Turn down the volume on the standby radio to ‘switch’ it off.
Forum: Glass Cockpit 11-25-2018, 10:35 PM
Replies: 14
Views: 533
Posted By BobTurner
The sensor is just a potentiometer-a variable...

The sensor is just a potentiometer-a variable resistor. The blue and orange wires go to the two ends of the resistor. The green wire goes to the variable pick-off, also called ‘slider’.
Please...
Forum: Glass Cockpit 11-25-2018, 06:30 PM
Replies: 14
Views: 533
Posted By BobTurner
Okay, here’s the deal: The best set up is shown...

Okay, here’s the deal:
The best set up is shown in post #4, except that the 1K resistor is not needed. Wire the orange wire directly to the 4.8 volt source. You should see the voltage on the green...
Forum: Glass Cockpit 11-25-2018, 01:22 AM
Replies: 14
Views: 533
Posted By BobTurner
It sounds like it should work. Be sure the green...

It sounds like it should work. Be sure the green and orange wires are connected together, for each sensor. And then connected to pin B17 or B16.
Pin 17 is analog 5; pin 16 is analog 6.
Check your...
Forum: RV General Discussion/News 11-23-2018, 02:09 AM
Replies: 55
Views: 15,763
Posted By BobTurner
“Recoup the costs of insurance”. I don’t carry...

“Recoup the costs of insurance”. I don’t carry cfi insurance, and don’t know anyone who does, because the premium for what’s really needed exceeds my annual instruction income.

“Views a flight...
Forum: RV General Discussion/News 11-18-2018, 03:54 PM
Replies: 16
Views: 1,740
Posted By BobTurner
Mine only seem to need air two or three times a...

Mine only seem to need air two or three times a year. I want to inspect the brakes (and dry lube the slide pins) that often anyway, so I pull the pants.
Forum: RV General Discussion/News 11-16-2018, 06:42 PM
Replies: 12
Views: 1,339
Posted By BobTurner
Actual time starting at start up is Hobbs, not...

Actual time starting at start up is Hobbs, not tach. The time ratioed by the actual rpm/nominal rpm is tach time.
As to re-sale expectations, I would think either is okay, if the buyer understands...
Forum: RV Building Tips/Techniques 11-16-2018, 01:38 AM
Replies: 37
Views: 1,647
Posted By BobTurner
People seldom regret buying good tools. That...

People seldom regret buying good tools. That said, yes, $2K is overkill.
Forum: RV-10 11-14-2018, 07:57 PM
Replies: 16
Views: 1,025
Posted By BobTurner
Since it's RF, path lengths matter. So current...

Since it's RF, path lengths matter. So current induced in the ground plane has to be able to flow directly to the coax shield. If the current's path is along the graphite, past the coax connector, to...
Forum: RV-10 11-14-2018, 02:18 PM
Replies: 16
Views: 1,025
Posted By BobTurner
It is important to connect the coax shield to the...

It is important to connect the coax shield to the plate, but it is not necessary to otherwise ground the ‘ground plane’.

The 430, and I think other Garmin gps boxes, have a signal strength display...
Forum: ADS-B 11-11-2018, 11:29 PM
Replies: 9
Views: 852
Posted By BobTurner
I have asked the same question. The FARs say adsb...

I have asked the same question. The FARs say adsb should send pressure altitude out. I don’t see any exceptions. And since the FAA’s long term goal is to get rid of radar, what then of ‘sniffers’?
Forum: RV General Discussion/News 11-10-2018, 02:07 PM
Replies: 8
Views: 480
Posted By BobTurner
I don’t know the the answer to your first...

I don’t know the the answer to your first question, as I have an HX. But even so, my preference is to split the screen PFD/HSI, and look at the 420 if I want a map.
As to WAAS, don’t just think “200’...
Forum: Instrument Flight Rules 11-10-2018, 01:51 PM
Replies: 11
DME
Views: 991
Posted By BobTurner
That’s a long answer to a question that wasn’t...

That’s a long answer to a question that wasn’t asked. He asked about one ILS and one DME, as a backup to his gps, in case of gps failure.
Forum: RV General Discussion/News 11-10-2018, 12:11 PM
Replies: 8
Views: 480
Posted By BobTurner
I have a GRT HX (ARINC built in), SL30, 420W. I...

I have a GRT HX (ARINC built in), SL30, 420W. I cannot recall exactly what you loose without the ARINC. I think “OBS mode” (useful for holding) is lost, as the OBS communication is via ARINC. Most...
Forum: California 11-10-2018, 11:52 AM
Replies: 12
Views: 1,358
Posted By BobTurner
I *heard* (third hand) that Kaiser has left this...

I *heard* (third hand) that Kaiser has left this to the individual physicians. I’m due for my (Bay area Kaiser) physical, I need to ask about this too.
Forum: ADS-B 11-08-2018, 02:22 PM
Replies: 23
Views: 2,234
Posted By BobTurner
Here are some estimates: 1. Buy a good used 327...

Here are some estimates:
1. Buy a good used 327 mode C transponder. $400. Antenna $100. UAvionics UAT with gps for $1500 (or substitute GRT gps, same price). Total $2K.
2. Buy a Trig TT22 mode SES....
Forum: COMM 11-05-2018, 02:25 PM
Replies: 4
Views: 550
Posted By BobTurner
+1 I turn music mute off, too, for the same...

+1
I turn music mute off, too, for the same reason: in busy airspace it would be constantly muted. I just make sure I can hear ATC over the music.
My pet peeve: intercoms that block my voice while...
Forum: RV-12 11-04-2018, 07:51 PM
Replies: 6
Views: 875
Posted By BobTurner
BTW, here in the US the TT-21 doesn't have enough...

BTW, here in the US the TT-21 doesn't have enough power to meet the US ADSB specs. I presume you checked, it's legal in Australia?
PS I'm using a TT-22 and a G420W, to meet US ADSB-out rules. Works...
Forum: Instrument Flight Rules 11-04-2018, 07:46 PM
Replies: 27
Views: 1,883
Posted By BobTurner
Since the regs do not require a POH for an EAB,...

Since the regs do not require a POH for an EAB, none is required. Make sure the passenger placard is there!
Ask the DPE about what he expects for partial panel. Most seem to be content to just "fail"...
Forum: ADS-B 11-02-2018, 04:29 PM
Replies: 31
Views: 2,610
Posted By BobTurner
Yes, the $500 GRT GPS source is compatible with...

Yes, the $500 GRT GPS source is compatible with these transponders.
As these are mode S-ES transponders, not UAT, they do not have an anonymous mode. But you can go over 18,000’ with them!
Honestly,...
Forum: RV-10 10-31-2018, 12:27 AM
Replies: 5
Views: 703
Posted By BobTurner
Are you sure?

RON is ‘research octane number’. For many years, the standard for aviation has been MON, ‘Motor Octane number’. In the US, by law, posted octane numbers for car gas are (R+M)/2, e.g., the average of...
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