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Search: Posts Made By: BobTurner
Forum: RV-10 Yesterday, 11:08 AM
Replies: 8
Views: 479
Posted By BobTurner
He said Ďthe egt is in line with the othersí. My...

He said Ďthe egt is in line with the othersí. My comment was that you want to know how far from peak egt you are, on each cylinder. Having absolute egt readings is not the same. If #6 is running 50F...
Forum: RV General Discussion/News Yesterday, 02:08 AM
Replies: 29
Views: 1,759
Posted By BobTurner
Because I didnít build the airplane to impress...

Because I didnít build the airplane to impress anyone with how it looks. Iím impressed with how fast it goes and how much it can carry, and thatís the only opinion that matters to me.
Forum: Propellers 02-26-2020, 01:48 PM
Replies: 4
Views: 321
Posted By BobTurner
You need to do both. First, adjust the propís...

You need to do both. First, adjust the propís fine pitch stop so the RPMs just reach red-line as the throttle is full forward (sea level, no wind). Then adjust the governor until the rpms come down...
Forum: RV-10 02-26-2020, 01:24 PM
Replies: 12
Views: 490
Posted By BobTurner
Most autopilots can only supply a limited amount...

Most autopilots can only supply a limited amount of force. e.g.,if the airplane is way out of trim, especially in pitch, the autopilot may disconnect (as its maximum torque cannot correct a...
Forum: RV-10 02-25-2020, 10:39 PM
Replies: 8
Views: 479
Posted By BobTurner
Forget the absolute egt number. How far is the...

Forget the absolute egt number. How far is the egt from peak egt (assuming rich of peak), and what is that value for the other cylinders? E.g., is #6 running 50 F rich of peak while all other...
Forum: RV-10 02-25-2020, 03:05 PM
Replies: 8
Views: 426
Posted By BobTurner
Iím honestly not sure. But I think I used a...

Iím honestly not sure. But I think I used a pneumatic squeezer, Ďbackwardsí (e.g., male die in the ram arm, female die in the fixed arm.).
Forum: RV General Discussion/News 02-25-2020, 02:42 PM
Replies: 3
Views: 166
Posted By BobTurner
Itís helpful if you specify make and model. Also...

Itís helpful if you specify make and model. Also if you want an A&P to do a Condition inspection, or just an experienced pair of eyes to do a look over.
Forum: RV-10 02-25-2020, 11:45 AM
Replies: 18
Views: 896
Posted By BobTurner
Just to be clear, this can happen with two people...

Just to be clear, this can happen with two people in the back seat, and two other people on the step behind the wing. Not hard to avoid, just be aware.
Forum: RV-10 02-25-2020, 12:44 AM
Replies: 18
Views: 896
Posted By BobTurner
As an EAB there will be some variation in the...

As an EAB there will be some variation in the empty weights and CGís between different-10ís. But in most 10ís everything you load into the cabin - front seats, back seats, baggage - moves the cg aft....
Forum: COMM 02-24-2020, 12:42 PM
Replies: 2
Views: 194
Posted By BobTurner
While Garmin provides free updates, theyíre only...

While Garmin provides free updates, theyíre only free to Garmin dealers, who are free to charge you whatever they feel like. There have been one or two individuals who somehow came to possess the...
Forum: RV Building Tips/Techniques 02-23-2020, 10:41 AM
Replies: 24
Views: 1,645
Posted By BobTurner
1. 26 awg is pretty thin. 2. Put shrink tubing...

1. 26 awg is pretty thin.
2. Put shrink tubing over the wire first, slide it away from the solder joint, then solder. Slide the tubing back over the solder to no-solder region, heat and shrink. This...
Forum: RV General Discussion/News 02-21-2020, 06:14 PM
Replies: 15
Views: 592
Posted By BobTurner
While I did keep a spiral bound notebook, mostly...

While I did keep a spiral bound notebook, mostly I noted anything of importance directly on the plans (this works well on the newer (-10, -14) plans). But the main function for the examiner is to...
Forum: VAF Classifieds (posts in here deleted after 30 days) 02-20-2020, 04:52 PM
Replies: 6
Views: 468
Posted By BobTurner
I'll take them. PM me your address and I'll send...

I'll take them. PM me your address and I'll send a check. After it clears, you can send them to me.
Forum: ADS-B 02-20-2020, 02:56 PM
Replies: 14
Views: 568
Posted By BobTurner
The current faa recommendation (rule?) is to run...

The current faa recommendation (rule?) is to run transponders on alt 100% of the time, no longer just prior to takeoff. Set it to ALT and leave it, never touch it again.
Forum: Electrical Systems 02-19-2020, 05:46 PM
Replies: 9
Views: 496
Posted By BobTurner
How about inverting the middle row? Buss bar to...

How about inverting the middle row? Buss bar to buss bar, don't care if they touch. Without the thick buss bar, the "fused" sides may have a bit more clearance.
Forum: Glass Cockpit 02-19-2020, 04:13 PM
Replies: 8
Views: 1,879
Posted By BobTurner
Just to be clear, the G175 is a gps only. There...

Just to be clear, the G175 is a gps only. There is no NAV side.
Forum: VAF Classifieds (posts in here deleted after 30 days) 02-19-2020, 01:00 AM
Replies: 15
Views: 634
Posted By BobTurner
What do your Op Limits say? Mine say, for night...

What do your Op Limits say? Mine say, for night flight, I need to have Ďapprovedí position lights. I presume that means they meet the part 23 specs.
Forum: RV-14 02-18-2020, 08:28 PM
Replies: 3
Views: 363
Posted By BobTurner
The usual recommendation is to hold off on...

The usual recommendation is to hold off on avionics for as long as possible, as they change faster than anything else. You don't want to have your first flight happen, and wish your avionics weren't...
Forum: Glass Cockpit 02-18-2020, 03:23 PM
Replies: 8
Views: 1,879
Posted By BobTurner
Actually, I have an HX. I used to have an HS, so...

Actually, I have an HX. I used to have an HS, so I assumed the 10.1 is at least as good as the Hx (but I understand, one should never assume). There are several threads about this, and the G175, on...
Forum: Propellers 02-18-2020, 03:04 PM
Replies: 8
Views: 836
Posted By BobTurner
I am by no means an expert, but I would try to...

I am by no means an expert, but I would try to drill and tap the hole for a left handed thread (use lots of grease on the tools to try to capture all chips). Insert a left handed bolt coated with...
Forum: RV General Discussion/News 02-18-2020, 02:50 PM
Replies: 15
Views: 1,003
Posted By BobTurner
No. To be current to carry passengers at night,...

No. To be current to carry passengers at night, you must have logged 3 landings to a FULL stop, at night, in the last 90 days. Any SEL airplane. But if itís a tailwheel airplane, you must have also...
Forum: COMM 02-17-2020, 10:38 PM
Replies: 9
Views: 457
Posted By BobTurner
Crummy SWR doesnít just mean less power to the...

Crummy SWR doesnít just mean less power to the antenna. It also means significant power flowing back into the transmitter, where it creates all sorts of trouble.
Forum: RV-10 02-16-2020, 07:23 PM
Replies: 5
Views: 1,003
Posted By BobTurner
Iíve experimented with -3 vs in trail, in cruise,...

Iíve experimented with -3 vs in trail, in cruise, at mid-weight, 16,500í DA. I couldnít see any difference. I presume that at even higher density altitudes, in trail might be a bit faster.
As to the...
Forum: Glass Cockpit 02-16-2020, 06:55 PM
Replies: 8
Views: 1,879
Posted By BobTurner
If you liked the HS, youíll love the new Horizon...

If you liked the HS, youíll love the new Horizon 10.1. Better screen resolution, synthetic vision, etc. IMHO looking at U-tube videos is the worst way to make a buying decision, but to each his own.
Forum: Traditional Aircraft Engines 02-16-2020, 06:37 PM
Replies: 11
Views: 873
Posted By BobTurner
You will also want a ĎParts Manualí.

You will also want a ĎParts Manualí.
Forum: COMM 02-16-2020, 05:15 PM
Replies: 9
Views: 457
Posted By BobTurner
Agree with Ken. On receive, nearly anything (coat...

Agree with Ken. On receive, nearly anything (coat hangar) works for an antenna. Transmit is a lot fussier. Specifically, look for good connections where the coax shield is attached to the connector,...
Forum: Glass Cockpit 02-16-2020, 05:01 PM
Replies: 5
Views: 255
Posted By BobTurner
If you bought stuff from Stein he will send along...

If you bought stuff from Stein he will send along a wiring diagram - just ask.
Make sure you know how to set up the SL30 and G3X so it will show an ILS and a VOR cross fix at the same time. To the...
Forum: RV General Discussion/News 02-16-2020, 04:33 PM
Replies: 24
Views: 1,236
Posted By BobTurner
My observation is that the outside radius does...

My observation is that the outside radius does have a small amount of stretching/flatening. But the inside radius is slightly compressed/flattened as well. They seem to average out!
Forum: RV General Discussion/News 02-16-2020, 04:24 PM
Replies: 24
Views: 1,236
Posted By BobTurner
When it comes to bending 90 deg, my bending tool...

When it comes to bending 90 deg, my bending tool came with very explicit instructions for initial length vs final (up-right) lengths. Or, you could do the math.
Forum: RV-14 02-15-2020, 06:09 PM
Replies: 10
Views: 765
Posted By BobTurner
That is what I did. plus, made sure the wingtip...

That is what I did. plus, made sure the wingtip attach screws had no paint between the screws and the aluminum wing. Others have attached an aluminum angle to the rib, and the antenna to the angle....
Forum: RV-14 02-15-2020, 12:11 AM
Replies: 15
Views: 1,099
Posted By BobTurner
Just to be clear, a dipole for 113 MHz consists...

Just to be clear, a dipole for 113 MHz consists of two center fed radiating elements, each of which is 25”.
Forum: RV-14 02-14-2020, 08:11 PM
Replies: 15
Views: 1,099
Posted By BobTurner
Neither the heat controller nor the servo should...

Neither the heat controller nor the servo should generate appreciable radio frequency interference.
Forum: RV-14 02-14-2020, 02:21 PM
Replies: 15
Views: 1,099
Posted By BobTurner
This just illustrates what Don said, above: with...

This just illustrates what Don said, above: with a 40 watt gs transmitter 5 miles away, almost anything, including a coat hangar, will work. A Ďproperí half wave dipole for GS will have 9Ē of...
Forum: RV-14 02-13-2020, 01:28 AM
Replies: 15
Views: 1,099
Posted By BobTurner
As Don said, antennas that are resonant at...

As Don said, antennas that are resonant at half-wavelength are also resonant at 3/2, 5/2, etc., wavelengths, so they work well at 330 MHz. The 50 ohm matching network may be off a bit, but, as Don...
Forum: RV General Discussion/News 02-12-2020, 12:41 AM
Replies: 2
Views: 329
Posted By BobTurner
I have never heard this, nor has the insurance...

I have never heard this, nor has the insurance company ever asked of it was a slow or fast build kit.
Forum: RV General Discussion/News 02-10-2020, 02:09 PM
Replies: 55
Views: 3,212
Posted By BobTurner
You sound like youíve got a realistic grasp on...

You sound like youíve got a realistic grasp on the chalkenges, so just a few comments.
1. Look carefully at the 9ís weight and balance. Vans has numbers on their web site, but many planes come in...
Forum: ADS-B 02-10-2020, 01:32 PM
Replies: 6
Views: 364
Posted By BobTurner
Iím not familiar with the G3X but most efis units...

Iím not familiar with the G3X but most efis units have a page where they show the number of adsb ground stations theyíre in contact with. If that number is Ď0í then, as others said, you wonít see wx...
Forum: RV-8/8A 02-09-2020, 03:56 PM
Replies: 14
Views: 1,226
Posted By BobTurner
Mirror images

Congratulations!
I thought I was becoming dyslexic. My RV is N48HT (!)
Forum: ADS-B 02-09-2020, 10:59 AM
Replies: 8
Views: 244
Posted By BobTurner
The HXr will pass altitude data to the trig, for...

The HXr will pass altitude data to the trig, for both transponder and adsb, one wire. But you need to configure it to do so. Sounded like you had it configured to use the ack encoder.
With regard to...
Forum: RV-10 02-09-2020, 01:22 AM
Replies: 17
Views: 1,668
Posted By BobTurner
+1. This is the correct explanation. A simple...

+1. This is the correct explanation. A simple test for small induction leaks is to run full rich, wide open throttle, observe EGTs. Smoothly retard throttle to idle. If any cylinder shows an egt...
Forum: ADS-B 02-09-2020, 01:11 AM
Replies: 8
Views: 244
Posted By BobTurner
The 2 in the skyradar D2 stands for two...

The 2 in the skyradar D2 stands for two frequencies, 978 and 1099 MHz. The latter is the transponder frequency. All traffic thatís available, it will get it. The TIS traffic from the transponder is...
Forum: RV General Discussion/News 02-08-2020, 09:14 PM
Replies: 11
Views: 1,194
Posted By BobTurner
I put the work in after the work is done. I put...

I put the work in after the work is done. I put the test flight in after the test flight. But you can do whatever you want. As an EAB youíre not legally obligated to record any work done, other than...
Forum: RV General Discussion/News 02-08-2020, 01:50 PM
Replies: 6
Views: 275
Posted By BobTurner
I have an iPad with WingX, and see the same...

I have an iPad with WingX, and see the same thing. It magically connects to a data source for adsb-in wx, either wifi or cellular, when away from the airplane.
Forum: ADS-B 02-08-2020, 01:44 PM
Replies: 8
Views: 244
Posted By BobTurner
Okay, forgive me if Iím wrong, but you sound...

Okay, forgive me if Iím wrong, but you sound confused. This equipment can get you ADSB-out, which is all you need to be legal, but it will not get you ADSB-in traffic and weather. I have a GRT HX,...
Forum: RV-10 02-08-2020, 12:06 AM
Replies: 17
Views: 1,668
Posted By BobTurner
Did you sump the tanks prior to takeoff?

Did you sump the tanks prior to takeoff?
Forum: Instrument Flight Rules 02-07-2020, 06:39 PM
Replies: 16
Views: 1,666
Posted By BobTurner
I know one guy who had his charts on an iPad. Day...

I know one guy who had his charts on an iPad. Day of his check ride was hot, and half way thru his iPad overheated and quit. He was able to fish some paper charts out of his flight bag and finish.
Forum: Instrument Flight Rules 02-07-2020, 12:40 AM
Replies: 16
Views: 1,666
Posted By BobTurner
Youíre all set. Velcro the portable nav to the...

Youíre all set. Velcro the portable nav to the panel, call it installed, be ready to shoot a vor approach with it. Problems solved.
Forum: Instrument Flight Rules 02-06-2020, 04:52 PM
Replies: 16
Views: 1,666
Posted By BobTurner
Dan, I know you asked specifically about the...

Dan,
I know you asked specifically about the check ride. But the question extends to actual operation in IMC. How many backups, if any, are enough? You'll get answers to that question ranging from...
Forum: Instrument Flight Rules 02-06-2020, 04:44 PM
Replies: 16
Views: 1,666
Posted By BobTurner
I think everyone agrees with that, as does the...

I think everyone agrees with that, as does the ACS. The issue is the "two different non-precision" approaches. What did he have you do for those?
Forum: RV General Discussion/News 02-05-2020, 07:32 PM
Replies: 32
Views: 3,270
Posted By BobTurner
I have no idea about cause and effect, but since...

I have no idea about cause and effect, but since you just had the fuel tank out, Iíd look hard at any connections that were undone.
Forum: Instrument Flight Rules 02-05-2020, 05:34 PM
Replies: 16
Views: 1,666
Posted By BobTurner
Task A. Nonprecision Approach The evaluator will...

Task A. Nonprecision Approach
The evaluator will select nonprecision approaches representative of the type that the applicant is likely to use. The choices must use at least two different types of...
Forum: Instrument Flight Rules 02-05-2020, 04:45 PM
Replies: 16
Views: 1,666
Posted By BobTurner
My reading of the rules, as found in the preface...

My reading of the rules, as found in the preface to the former PTS, now ACS, is ‘no’. This preface says the examiner is to choose ‘3 different types of approaches’, then lists the acceptable ones....
Forum: VAF Classifieds (posts in here deleted after 30 days) 02-04-2020, 04:04 PM
Replies: 1
Views: 219
Posted By BobTurner
Donít sell yourself short! This box can also...

Donít sell yourself short! This box can also communicate to a GRT HX via USB, so itís not just for portables. And the gps data goes over the usb connection as well, giving you a backup for that. And...
Forum: RV General Discussion/News 02-04-2020, 03:47 PM
Replies: 15
Views: 1,345
Posted By BobTurner
....and, watch out for the bottom line. Once upon...

....and, watch out for the bottom line. Once upon a time, they just charged an advertised rate. Now, they advertise a Ďsubscriptioní cost, then add in fees that are really THEIR overhead, like ĎMusic...
Forum: RV General Discussion/News 02-02-2020, 04:59 PM
Replies: 13
Views: 1,423
Posted By BobTurner
I ordered a SlickStart module from Vans. What...

I ordered a SlickStart module from Vans. What arrived was a factory-refurbished unit, yellow tag and all. I called. They apologized profusely for the mix-up, and offered me two options: keep the...
Forum: Autopilots 02-02-2020, 03:29 PM
Replies: 28
Views: 998
Posted By BobTurner
I can’t see the photo in post #25. You need some...

I can’t see the photo in post #25.
You need some care here. The Archer is not a dipole, but a quarter wave over a ground plane. In theory its impedance is half that of a dipole, so if you throw in an...
Forum: COMM 02-01-2020, 11:32 PM
Replies: 64
Views: 24,470
Posted By BobTurner
I see a lot of effort going toward a non-problem....

I see a lot of effort going toward a non-problem. Just use the appropriate splitter off the vor/loc antenna. Because the GS is exactly 3 times higher frequency than the localizer frequencies, an...
Forum: RV-12/RV-12iS 02-01-2020, 10:36 PM
Replies: 31
Views: 3,073
Posted By BobTurner
Why guess? Get a straw, put your finger over the...

Why guess? Get a straw, put your finger over the end, stick it to into the sampler, remove the finger, put it back, remove the clear fluid, empty into a test tube. Put a thermometer into the tube,...
Forum: RV-12/RV-12iS 02-01-2020, 09:15 PM
Replies: 20
Views: 2,150
Posted By BobTurner
Think of this as an experiment, and save the...

Think of this as an experiment, and save the parts. You may be disappointed in the performance degradation. Unlike the fairings on, say, an old 172, Vans fairings actually work.
Forum: Autopilots 02-01-2020, 01:00 AM
Replies: 28
Views: 998
Posted By BobTurner
I think the dimension is more like 9Ē. Another...

I think the dimension is more like 9Ē.
Another option: just copy the GS antenna high up on the windscreen in a lot of 1970ís era Cessnas.
Forum: Autopilots 01-31-2020, 01:12 PM
Replies: 28
Views: 998
Posted By BobTurner
Since this thread started with wingtip antennas:...

Since this thread started with wingtip antennas: I have seen a photo of an Archer antenna that was installed with the radiating element (the actual antenna) riveted to the end rib, with the ground...
Forum: Glass Cockpit 01-31-2020, 01:03 PM
Replies: 11
Views: 603
Posted By BobTurner
As other-Bob said, the answer is no. All of these...

As other-Bob said, the answer is no. All of these autopilots (trio, TruTrak) are fully digital, and cannot accept analog outputs from ils or vor receivers. When you run ils or vor signals thru an...
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