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Search: Posts Made By: BobTurner
Forum: California Today, 03:42 PM
Replies: 2
Views: 91
Posted By BobTurner
For planning, make sure you get a hold of the new...

For planning, make sure you get a hold of the new SFO class B chart, which is due out very soon. I hear there are major changes.
Forum: RV-10 Today, 01:31 PM
Replies: 15
Views: 1,972
Posted By BobTurner
Tim, I heard (3rd hand) a different version: The...

Tim, I heard (3rd hand) a different version: The nut securing the bolt thru the rod end bearing was removed to allow the alignment jig to be placed on the bolt end, during control alignment....
Forum: RV-10 Today, 12:23 AM
Replies: 15
Views: 1,972
Posted By BobTurner
Generally speaking, if the control rod rotates in...

Generally speaking, if the control rod rotates in service, one rod end unscrews, the other screws in. Most control rods have the rod ends screwed in more than 50%, so if tbe rod rotates in service...
Forum: RV-14 Yesterday, 06:53 PM
Replies: 9
Views: 459
Posted By BobTurner
Yes, you can do them now, because you want to...

Yes, you can do them now, because you want to align them for minimum drag in flight, e.g., unweighted.
Forum: RV-14 Yesterday, 05:50 PM
Replies: 9
Views: 459
Posted By BobTurner
As you add weight the gear will spread out. Don't...

As you add weight the gear will spread out. Don't do anything until you see it under full load. Also, if you had it up on jacks and just let it down, you need to let it roll a bit for the tires to...
Forum: RV-12 08-12-2018, 07:12 PM
Replies: 114
Views: 26,711
Posted By BobTurner
Just remember, that ‘real time’ weather is not...

Just remember, that ‘real time’ weather is not really real time. Don’t cut it too close.
Forum: RV-10 08-12-2018, 05:17 PM
Replies: 29
Views: 5,569
Posted By BobTurner
Arrow A number of builders have installed a ‘shoulder...

A number of builders have installed a ‘shoulder belt hangar’ between the front seats, up high, for just this purpose.
Forum: RV General Discussion/News 08-11-2018, 06:13 PM
Replies: 36
Views: 6,682
Posted By BobTurner
The key is finding a FSDO inspector who knows...

The key is finding a FSDO inspector who knows their own rules! I had to educate mine. If you are serious PM or email me your email address, and I will send you a copy of my application...
Forum: RV-10 08-11-2018, 05:58 PM
Replies: 8
Views: 519
Posted By BobTurner
During ground alignment, did you clamp the...

During ground alignment, did you clamp the elevator neutral?
Align wingtips last. Are both flaps up against the aft spar? Do ailerons line up with flaps? Then and only then adjust wingtips.
Sight...
Forum: RV General Discussion/News 08-11-2018, 05:49 PM
Replies: 36
Views: 6,682
Posted By BobTurner
These guys all have waivers, for all sorts of FAR...

These guys all have waivers, for all sorts of FAR violations (low flying, etc). They’re easy enough to get, even I have one (for transition training). Operating an EAB for compensation is not allowed...
Forum: RV General Discussion/News 08-11-2018, 05:43 PM
Replies: 36
Views: 6,682
Posted By BobTurner
The new SEL commercial test standards are due out...

The new SEL commercial test standards are due out in about a week. The original FAA proposal was to allow you to take the test in a non-retractable, but you still needed 10 hours dual in a...
Forum: ADS-B 08-11-2018, 04:28 PM
Replies: 18
Views: 5,241
Posted By BobTurner
Wx is only broadcast on 978 MHz (UAT freq) so...

Wx is only broadcast on 978 MHz (UAT freq) so make sure that part of the Stratux is working. Also you must be within range of a ground station to get the wx. With no ADSB-out, the ground stations...
Forum: RV-10 08-11-2018, 03:50 PM
Replies: 8
Views: 519
Posted By BobTurner
So, hands off, it is right wing heavy? I think...

So, hands off, it is right wing heavy? I think you should be lowering the right aileron.
Forum: RV General Discussion/News 08-10-2018, 02:54 PM
Replies: 7
Views: 319
Posted By BobTurner
This is not a trivial question. These days most...

This is not a trivial question. These days most GPS antennas have a pre-amp inside them, powered by dc coming up the coax. You need to:
Make sure the dc gets by the splitter.
Make sure the dc power...
Forum: RV-10 08-09-2018, 11:32 PM
Replies: 18
Views: 1,413
Posted By BobTurner
I think for some time now they accept 5 - 30...

I think for some time now they accept 5 - 30 volts.
Forum: RV-10 08-09-2018, 07:04 PM
Replies: 18
Views: 1,413
Posted By BobTurner
I'd try to get a second or third set of eyes on...

I'd try to get a second or third set of eyes on this. You may be just the victim of incredibly bad luck, or there may be something obvious that you as the builder are overlooking from habit.
Wires...
Forum: RV-10 08-09-2018, 01:32 PM
Replies: 18
Views: 1,413
Posted By BobTurner
What was the failure mode of the first one? e.g.,...

What was the failure mode of the first one? e.g., impeller stuck/won’t spin? Internal electrical connection?
Forum: California 08-08-2018, 07:43 PM
Replies: 18
Views: 667
Posted By BobTurner
+1 on most replies. I paid state sales (use) tax...

+1 on most replies.
I paid state sales (use) tax every year, on my CA income tax return, on purchases. When asked about use tax, that's what I told them. Never heard anything more.
County sent me a...
Forum: RV General Discussion/News 08-08-2018, 12:48 AM
Replies: 2
Views: 216
Posted By BobTurner
Existing one should work fine.

Existing one should work fine.
Forum: RV General Discussion/News 08-07-2018, 02:31 PM
Replies: 11
Views: 546
Posted By BobTurner
SteinAir has different colors available. Click on...

SteinAir has different colors available. Click on their ad, on this web site.
Forum: Glass Cockpit 08-07-2018, 12:28 AM
Replies: 17
Views: 725
Posted By BobTurner
Generally good advice EXCEPT for the above...

Generally good advice EXCEPT for the above exerpt. ADSB-out is complicated, but generally speaking you have 3 options.
1. Do nothing and avoid ADSB required (2020) airspace. This won’t work for the...
Forum: Glass Cockpit 08-06-2018, 11:01 PM
Replies: 5
Views: 334
Posted By BobTurner
Generally speaking, RS232 in and out ports can be...

Generally speaking, RS232 in and out ports can be assigned different protocols (NMEA, ADSB+, etc) but both need to be at the same baud rate.
Forum: RV General Discussion/News 08-06-2018, 10:40 PM
Replies: 14
Views: 1,761
Posted By BobTurner
Before adding any weight to the trailing edge...

Before adding any weight to the trailing edge (filler) I’d run it by Vans, and ask about balance.
Forum: Glass Cockpit 08-06-2018, 10:09 PM
Replies: 17
Views: 725
Posted By BobTurner
Ryan, I sent you an email. Bob

Ryan,
I sent you an email.
Bob
Forum: RV-12 08-06-2018, 04:05 PM
Replies: 6
Views: 1,321
Posted By BobTurner
In an ideal case they should be the same. Real...

In an ideal case they should be the same. Real world, most of the difference comes from prop efficiency - typically prop efficiency is a strongly increasing function of airspeed, in this speed range....
Forum: Glass Cockpit 08-06-2018, 03:57 PM
Replies: 17
Views: 725
Posted By BobTurner
Hi Ryan, I'm based at LVK, and would be happy to...

Hi Ryan,

I'm based at LVK, and would be happy to show you the choices I made, and the reasons why I think they were the best (EVERYONE thinks their choices were the best!!). I can also show you the...
Forum: Glass Cockpit 08-04-2018, 12:05 AM
Replies: 33
Views: 1,947
Posted By BobTurner
Yes, it’s easy, but you need the data. A while...

Yes, it’s easy, but you need the data. A while ago someone here on VAF was renting a 430W upgrade card for a reasonable price. Search the forums.
Forum: Traditional Aircraft Engines 08-03-2018, 11:44 AM
Replies: 20
Views: 1,434
Posted By BobTurner
Standard Lycoming engines are designed to run...

Standard Lycoming engines are designed to run rich of best power at takeoff, to aid in cooling and detonation protection. You lean for takeoff at sea level at your own risk.
Forum: RV General Discussion/News 08-02-2018, 07:36 PM
Replies: 4
Views: 505
Posted By BobTurner
As the air density drops, the engine power and...

As the air density drops, the engine power and the drag both drop, approximately canceling out.
Forum: Traditional Aircraft Engines 08-02-2018, 07:20 PM
Replies: 20
Views: 1,434
Posted By BobTurner
Assuming your CS prop is at redline, takeoff fuel...

Assuming your CS prop is at redline, takeoff fuel flow should be around 15 gal/hr (check Lycoming spec sheet for exact number). 35 deg advance will also raise CHT.
Forum: Traditional Aircraft Engines 08-02-2018, 06:06 PM
Replies: 20
Views: 1,434
Posted By BobTurner
So you confirmed #2 is running leaner than the...

So you confirmed #2 is running leaner than the others. Check all those induction hose clamps for leaks.
Your take off fuel flow, if correct, is too low.
Forum: Traditional Aircraft Engines 08-02-2018, 02:43 PM
Replies: 20
Views: 1,434
Posted By BobTurner
Any chance #2 is running lean? Look carefully for...

Any chance #2 is running lean? Look carefully for any air leaks in the induction.
Forum: Glass Cockpit 08-02-2018, 02:31 PM
Replies: 2
Views: 215
Posted By BobTurner
I cannot help with #1. You’ll need to see what...

I cannot help with #1. You’ll need to see what protocol(s) the ELT can read, and if the G3x will output one of them.
#2 You are correct, the ELT will remember the last gps position it received.

PS....
Forum: RV-10 08-02-2018, 02:18 PM
Replies: 5
Views: 315
Posted By BobTurner
Is the spring that holds the outside button out...

Is the spring that holds the outside button out in place?
Forum: RV General Discussion/News 08-02-2018, 01:57 PM
Replies: 4
Views: 505
Posted By BobTurner
Think of the mechanical stops as a ‘back up’ to...

Think of the mechanical stops as a ‘back up’ to the governor. If the governor fails you don’t want to go to zero pitch (no thrust), but you also don’t want the stops to limit full RPM on takeoff. So...
Forum: Glass Cockpit 08-01-2018, 09:42 PM
Replies: 11
Views: 873
Posted By BobTurner
Yes you can. WingX is free to CFIs.

Yes you can. WingX is free to CFIs.
Forum: GPS 08-01-2018, 10:58 AM
Replies: 14
Views: 1,024
Posted By BobTurner
Cannot answer your questions. The minimum needed...

Cannot answer your questions. The minimum needed insertion loss was specified by Garmin in the installation instructions, for their specified antenna.
Forum: ADS-B 08-01-2018, 10:51 AM
Replies: 13
Views: 503
Posted By BobTurner
I have no idea about what input/export fees are...

I have no idea about what input/export fees are for you. But Trig is based in Europe, perhaps cheaper? A TT-22 can read the ‘ADSB+’ output from your GTN, works in the US as an ADSB-out device. While...
Forum: RV General Discussion/News 07-31-2018, 11:15 PM
Replies: 10
Views: 768
Posted By BobTurner
You actually lose less than you might expect. An...

You actually lose less than you might expect. An ideal 1/4 wave whip, bent half way up, still radiates over 80% of the vertically polarized power as the unbent whip.
Forum: Safety 07-31-2018, 10:40 PM
Replies: 31
Views: 3,379
Posted By BobTurner
Wrong. Whenever you even suspect you might be aft...

Wrong.
Whenever you even suspect you might be aft heavy, or you ‘think’ you have about 80 pounds in the back, you don’t takeoff. You unload everything, weigh it, put it back in, measure the arm with...
Forum: GPS 07-31-2018, 06:34 PM
Replies: 14
Views: 1,024
Posted By BobTurner
This was exactly the issue with the 430 to 430W...

This was exactly the issue with the 430 to 430W upgrade - the antenna had too much gain, resulting in the requirement to install with a specified minimum or more coax length, to introduce a...
Forum: Safety 07-31-2018, 06:05 PM
Replies: 31
Views: 3,379
Posted By BobTurner
RV10

Yep. With the 10 you must check LANDING CG, as well as takeoff.
Start with cg near aft limit, cg moves further aft as you burn gas. But start with cg near the forward limit, cg moves forward as you...
Forum: RV General Discussion/News 07-31-2018, 04:45 PM
Replies: 12
Views: 471
Posted By BobTurner
Some of the antennas these days have amplifiers...

Some of the antennas these days have amplifiers within them (they get dc power up the coax). They can radiate local oscillator signals. Worse, there are reports (here on VAF) that one failure mode of...
Forum: COMM 07-31-2018, 04:09 PM
Replies: 12
Views: 698
Posted By BobTurner
One more unlikely but very easy thing: spray all...

One more unlikely but very easy thing: spray all the contact pins with electronic cleaner spray before inserting.
Forum: Glass Cockpit 07-31-2018, 02:02 PM
Replies: 14
Views: 937
Posted By BobTurner
I presume the OP is contemplating IFR operation,...

I presume the OP is contemplating IFR operation, where it is prudent to ask what you will do if something suddenly rolls over and dies (or worse - very slowly rolls over and dies).

If your existing...
Forum: GPS 07-31-2018, 01:50 PM
Replies: 14
Views: 1,024
Posted By BobTurner
As has been discussed previously, the fact that a...

As has been discussed previously, the fact that a gps is working today, or last week, or on a hundred straight days does not mean that it will work under the worst case scenario where it is still...
Forum: COMM 07-31-2018, 01:30 PM
Replies: 12
Views: 698
Posted By BobTurner
While you have it apart looking for the other...

While you have it apart looking for the other fuse, get an ohmmeter across the power switch (part of the volume control) contacts. Maybe they corroded sitting in the hangar. Check easy stuff first,...
Forum: VAF Classifieds (posts in here deleted after 30 days) 07-30-2018, 05:49 PM
Replies: 8
Views: 732
Posted By BobTurner
Let me know if you're interested in splitting the...

Let me know if you're interested in splitting the package. I'm looking for one HX display (only - don't need anything else).
Forum: Glass Cockpit 07-30-2018, 04:26 PM
Replies: 2
Views: 395
Posted By BobTurner
Your 23ES can receive TIS broadcasts from ATC if...

Your 23ES can receive TIS broadcasts from ATC if in an area the has them.
Forum: GPS 07-30-2018, 02:37 PM
Replies: 14
Views: 1,024
Posted By BobTurner
It’s potentially much worse than just losing half...

It’s potentially much worse than just losing half the signal. Some antennas have built in amplifiers requiring dc voltage running up the coax. Some have different gains than others (look at the mess...
Forum: COMM 07-29-2018, 02:32 PM
Replies: 5
Views: 295
Posted By BobTurner
How far apart are the two antennas? You may find...

How far apart are the two antennas? You may find that transmitter #1 ‘bleeds thru’ into receiver #2, rather annoying.
Forum: COMM 07-28-2018, 06:08 PM
Replies: 4
Views: 289
Posted By BobTurner
Yet it always worked with the intercom. Strange...

Yet it always worked with the intercom. Strange gremlin indeed.
Forum: COMM 07-27-2018, 07:37 PM
Replies: 4
Views: 289
Posted By BobTurner
Does the intercom work okay from the front seat?...

Does the intercom work okay from the front seat? If no, pull the input pins and swap front and back seat inputs. (Back pins to front inputs). If the rear seat now has the issue, the problem is in...
Forum: RV General Discussion/News 07-26-2018, 03:08 PM
Replies: 3
Views: 311
Posted By BobTurner
I think the recommended tool is a hand held...

I think the recommended tool is a hand held router.
Forum: RV-14 07-25-2018, 11:50 AM
Replies: 4
Views: 474
Posted By BobTurner
Most 172/182 Cessnas came with two impulse mags,...

Most 172/182 Cessnas came with two impulse mags, so the answer is no. Most Pipers came with one impulse mag, one plain, so the answer is yes. There is an arrangement of jumpers on the back of the...
Forum: RV-14 07-24-2018, 12:36 PM
Replies: 4
Views: 474
Posted By BobTurner
If you have an impulse mag, no Slick start...

If you have an impulse mag, no Slick start needed.
If you have a RETARD mag, then the Slick start should be attached to that mag.
You can easily tell the difference between the mags. Slowly and...
Forum: RV-9/9A 07-22-2018, 11:14 PM
Replies: 9
Views: 1,696
Posted By BobTurner
I had the same problem. Pump wouldn’t pump. I...

I had the same problem. Pump wouldn’t pump. I siphoned some gas from the tank, thru the pump, over to the engine side. Let it sit for 15 minutes. After that the pump worked fine. My theory is that...
Forum: RV Ongoing Maintenance Issues 07-22-2018, 08:02 PM
Replies: 12
Views: 952
Posted By BobTurner
I’m pretty sure that the various oil analysis...

I’m pretty sure that the various oil analysis firms use spectroscopic techniques, which only see silicon, copper, iron, etc., e.g., only elements. They cannot differentiate between sand (silicon...
Forum: GPS 07-21-2018, 10:26 PM
Replies: 10
Views: 547
Posted By BobTurner
Quite honestly I don’t think anyone, including...

Quite honestly I don’t think anyone, including the FAA, has figured out exactly what “meets the TSO performance specs but is not TSO’d” means, or how to enforce it. As far as I can tell they’re just...
Forum: GPS 07-21-2018, 06:58 PM
Replies: 10
Views: 547
Posted By BobTurner
For the TSO to be valid you need to install it in...

For the TSO to be valid you need to install it in accordance with the Garmin installation manual. You can find it on the internet if they don’t give you a copy. The only approved antenna locations...
Forum: GPS 07-21-2018, 03:01 PM
Replies: 10
Views: 547
Posted By BobTurner
Yes, you can buy in-line attenuators. Good...

Yes, you can buy in-line attenuators. Good quality ones are more expensive than RG400. Also there is a specified insertion loss for every connector.

As you probably know a glare shield mounted...
Forum: GPS 07-21-2018, 11:51 AM
Replies: 10
Views: 547
Posted By BobTurner
While you’re behind the panel, ask if you need...

While you’re behind the panel, ask if you need any more connections long-term. Easier to do now. For example, you can now use the 430W as a position source for ADSB-out. But you’ll need a wire from...
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