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Search: Posts Made By: BobTurner
Forum: Traditional Aircraft Engines Today, 01:21 AM
Replies: 13
Views: 760
Posted By BobTurner
No, this is untrue. The issue is the paper trail....

No, this is untrue. The issue is the paper trail. A certified engine must have records detailing all maintenance performed, and it’s assumed that this rule is followed. An EAB may be maintained by...
Forum: RV General Discussion/News Yesterday, 02:54 PM
Replies: 21
Views: 1,403
Posted By BobTurner
Maybe things have changed. In 2011 my DAR told me...

Maybe things have changed. In 2011 my DAR told me I was one of his last clients - he was taking a job with the FSDO. He expected the take home pay would be about the same, but with much better fringe...
Forum: RV General Discussion/News Yesterday, 02:39 PM
Replies: 29
Views: 3,851
Posted By BobTurner
Good news!

Good news!
Forum: VAF Classifieds (posts in here deleted after 30 days) Yesterday, 02:34 PM
Replies: 5
Views: 201
Posted By BobTurner
Back in the gps thread, someone posted a photo of...

Back in the gps thread, someone posted a photo of a 3 pole, double throw switch. You could use two of these (one to select between gps2 and gps3, then the second to choose gps1 or the output of the...
Forum: GPS Yesterday, 02:27 PM
Replies: 9
Views: 384
Posted By BobTurner
Switch needs depend on what the source has to...

Switch needs depend on what the source has to offer, but in best case (say a GTN box or similar) you need to switch 3 wires - one RS232 line, and an ARINC pair. For three sources that’s a lot of...
Forum: Traditional Aircraft Engines 04-03-2020, 01:46 PM
Replies: 13
Views: 760
Posted By BobTurner
As others have noted, the shop will want to...

As others have noted, the shop will want to remove the data plate - which will guarantee a 40 hour (not 25) phase 1, if that matters to you.
Forum: COMM 04-03-2020, 12:26 AM
Replies: 5
Views: 176
Posted By BobTurner
I had the same issue with a D6. I cut the wire to...

I had the same issue with a D6. I cut the wire to the audio panel (intercom), used alligator clips to insert a series resistor. Tried 1K, 3K, 5K ohms, etc., until the volume was about right. Soldered...
Forum: RV General Discussion/News 04-02-2020, 07:37 PM
Replies: 61
Views: 5,000
Posted By BobTurner
Some years back a jet jock reported here (I...

Some years back a jet jock reported here (I think) that he had purchased a (built) RV-10, but was disappointed with its climb performance in the high teens. Asked about power settings, he said...
Forum: Safety 04-02-2020, 07:19 PM
Replies: 21
Views: 1,708
Posted By BobTurner
You left out the third possibility: There are a...

You left out the third possibility: There are a certain number of students who have no intent of following your instructions. Sure, when you tell them that if they encounter adverse wx they should do...
Forum: RV General Discussion/News 04-01-2020, 04:44 PM
Replies: 4
Views: 281
Posted By BobTurner
The DPE at Lincoln, CA is not that far from...

The DPE at Lincoln, CA is not that far from Carson City, at RV-10 speeds. She has done RV checkrides in the past. But, she had a 6 month backlog before the virus. No telling what it is now.
I’m a...
Forum: RV General Discussion/News 04-01-2020, 04:33 PM
Replies: 9
Views: 882
Posted By BobTurner
Typical of the faa to say ‘scr.. you’ to basic...

Typical of the faa to say ‘scr.. you’ to basic med pilots. They hate the idea, they won’t lift a finger to help.
Forum: Glass Cockpit 03-31-2020, 10:38 PM
Replies: 29
Views: 1,383
Posted By BobTurner
I think you need the arinc module to get full...

I think you need the arinc module to get full functionality out of the 375 gps.
As discussed several posts back, a full blown audio panel makes operation smoother if you frequently switch between...
Forum: RV-12/RV-12iS 03-31-2020, 03:57 PM
Replies: 24
Views: 1,836
Posted By BobTurner
Registered as EAB? How can this possibly be legal?

Registered as EAB? How can this possibly be legal?
Forum: California 03-31-2020, 03:41 PM
Replies: 3
Views: 193
Posted By BobTurner
EAA chapter at LVK has some. Not super close...

EAA chapter at LVK has some. Not super close...
Forum: Glass Cockpit 03-31-2020, 03:37 PM
Replies: 29
Views: 1,383
Posted By BobTurner
+1 On the ident button. Our local tower asks for...

+1 On the ident button. Our local tower asks for it a lot, even for vfr traffic. I remoted mine to a button on the the control stick, even though it’s easy enough to access from my efis display.
+1...
Forum: Glass Cockpit 03-31-2020, 03:14 PM
Replies: 29
Views: 1,383
Posted By BobTurner
My opinions I’m not sure what ‘light ifr’ means....

My opinions
I’m not sure what ‘light ifr’ means. But if you have just one efis display (meaning no backup if it fails) I’d suggest ‘no ifr’ until you have the second panel.
1. I have a different...
Forum: RV-10 03-30-2020, 02:49 PM
Replies: 9
Views: 366
Posted By BobTurner
Well, opinions vary from ‘you can never own too...

Well, opinions vary from ‘you can never own too many tools’ to ‘you can always make do’. Personally, I thought the bench grinder/Scotchbrite wheel was indispensable. But I built my QB -10 without any...
Forum: RV-4 03-27-2020, 01:43 PM
Replies: 24
Views: 2,331
Posted By BobTurner
14 CFR 23.1331 which, of course, does not apply...

14 CFR 23.1331 which, of course, does not apply to EAB.
Forum: RV General Discussion/News 03-27-2020, 12:24 PM
Replies: 7
Views: 511
Posted By BobTurner
How about an angled shim, to cant the front face...

How about an angled shim, to cant the front face up, back down? Might actually be functional, make the radio easier to see.
Forum: RV-4 03-27-2020, 12:14 AM
Replies: 24
Views: 2,331
Posted By BobTurner
The requirements for a standard category airplane...

The requirements for a standard category airplane are not just in the FARs; there are a lot of additional requirements hidden in the type certificate process. e.g., until the recent faa exemption for...
Forum: RV-10 03-26-2020, 11:51 PM
Replies: 7
Views: 647
Posted By BobTurner
+1 on tying/ clamping. That’s a pretty heavy wire...

+1 on tying/ clamping. That’s a pretty heavy wire to be flopping around.
Forum: RV-10 03-26-2020, 03:12 PM
Replies: 5
Views: 409
Posted By BobTurner
In theory there is no radiation, since the center...

In theory there is no radiation, since the center conductor and shield will have equal but opposite currents. The radiated fields cancel each other. You can get nearly as good cancelation by just...
Forum: COMM 03-24-2020, 04:34 PM
Replies: 21
Views: 1,173
Posted By BobTurner
‘Bandwidth’, as used wrt antenna performance,...

‘Bandwidth’, as used wrt antenna performance, means how well it performs at 118 and 135 MHz, when cut to spec for 126 MHz. Up to a point, using wide conductors, as opposed to thin wire, can improve...
Forum: RV-6/6A 03-23-2020, 12:03 AM
Replies: 17
Views: 1,418
Posted By BobTurner
This is close. The rule is that parachutes are...

This is close. The rule is that parachutes are not required when a cfi is giving instruction on a maneuver required by the regulations for a rating. There is no requirement that the person receiving...
Forum: RV-6/6A 03-22-2020, 03:45 PM
Replies: 17
Views: 1,418
Posted By BobTurner
Parachutes are required per the FARs when doing...

Parachutes are required per the FARs when doing aerobatics with more than the required crew on-board. There is an exemption for cfi’s teaching ‘...any maneuver required for any rating...’ but that...
Forum: RV General Discussion/News 03-21-2020, 01:58 PM
Replies: 22
Views: 1,270
Posted By BobTurner
I certainly had no problem doing so. I seem to...

I certainly had no problem doing so. I seem to recall that the N number needed to be on the airplane (and inspected for conformance to size, etc.).
Forum: RV General Discussion/News 03-20-2020, 07:59 PM
Replies: 26
Views: 2,058
Posted By BobTurner
Spins are a required maneuver for a cfi...

Spins are a required maneuver for a cfi certificate. The examiner may accept a logbook endorsement of ‘spin training given...’ in lieu of an actual demonstration.

Although spins are not required for...
Forum: RV-10 03-20-2020, 01:14 PM
Replies: 24
Views: 4,516
Posted By BobTurner
To achieve well lean of peak, smooth running, you...

To achieve well lean of peak, smooth running, you need to adjust your injector nozzles so all cylinders reach peak egt at the same fuel flow.
Forum: Electrical Systems 03-19-2020, 04:08 PM
Replies: 3
Views: 456
Posted By BobTurner
Strictly speaking, you can get into trouble with...

Strictly speaking, you can get into trouble with this. The forward voltage drop is temperature dependent, so (1) the diodes should be as identical as possible, and (2) they should be ‘thermally...
Forum: RV General Discussion/News 03-19-2020, 12:40 PM
Replies: 11
Views: 1,035
Posted By BobTurner
Congratulations. Did you have 10 hrs dual in a...

Congratulations. Did you have 10 hrs dual in a retract, or did the examiner let you count dual in your RV as a TAA?
Forum: VAF Classifieds (posts in here deleted after 30 days) 03-19-2020, 12:13 PM
Replies: 10
Views: 580
Posted By BobTurner
+1. Same here. I’ve done A-B comparisons, and the...

+1. Same here. I’ve done A-B comparisons, and the Sierras are a good lower cost choice.
Forum: Traditional Aircraft Engines 03-18-2020, 06:17 PM
Replies: 13
Views: 1,139
Posted By BobTurner
Only thing I can think of is a potential issue at...

Only thing I can think of is a potential issue at TBO. If the overhauled crank has been turned down a few times already, it may be at its limits -can't be turned down again. Can you find out the...
Forum: ADS-B 03-18-2020, 01:40 AM
Replies: 12
Views: 879
Posted By BobTurner
1. Com. I assume a bent whip. Push the tail down...

1. Com. I assume a bent whip. Push the tail down and be sure the tail hits the ground before the antenna. If not you’ll need to move it forward until it clears. Watch out, these thing like to poke...
Forum: Safety 03-18-2020, 01:19 AM
Replies: 8
Views: 684
Posted By BobTurner
You’ll have trouble minimizing the cad plated...

You’ll have trouble minimizing the cad plated hardware - it’s pretty standard, for the anti-corrosion and anti-galling properties you mentioned. But in normal use you don’t generate Cd dust. Any...
Forum: Southeast 03-17-2020, 07:57 PM
Replies: 13
Views: 1,038
Posted By BobTurner
Welcome aboard! Me: Former part owner of a 182....

Welcome aboard!
Me: Former part owner of a 182. Built an RV-10 after I retired. Love it.
You: Q1: Is your wife on-board? Building an airplane is a huge time commitment (One I couldn't make while...
Forum: RV-8/8A 03-17-2020, 04:52 PM
Replies: 13
Views: 887
Posted By BobTurner
Is it really close now? Is the mixture control...

Is it really close now? Is the mixture control arm clocked so it's 90 deg to the cable, half-way thru its travel? If so, you can gain a tiny bit of throw (more throw at the carb for less control...
Forum: RV General Discussion/News 03-16-2020, 09:46 PM
Replies: 29
Views: 2,968
Posted By BobTurner
And there it is, the fundamental issue: the...

And there it is, the fundamental issue: the perception that if there’s something in it for us, then it must be okay.
Forum: California 03-16-2020, 09:38 PM
Replies: 7
Views: 360
Posted By BobTurner
Justin is a good guy, and free. Doesn’t hurt to...

Justin is a good guy, and free. Doesn’t hurt to ask if he’s available.
He gave me a phase 1 area with a corridor north of 580 east to the central valley, then north to the delta, south to Los Banos.
Forum: RV-10 03-16-2020, 09:33 PM
Replies: 5
Views: 405
Posted By BobTurner
I’d consider testing with slightly pressurized...

I’d consider testing with slightly pressurized air. Gas can seep thru where water doesn’t, and there is the issue of the top of the tank.
You might also consider the internal vent mod (alternate vent...
Forum: RV General Discussion/News 03-16-2020, 06:52 PM
Replies: 29
Views: 2,968
Posted By BobTurner
I agree. This was a monumental screw up by a...

I agree. This was a monumental screw up by a fsdo, and HQ then buried their heads in the sand.
Forum: RV General Discussion/News 03-16-2020, 06:22 PM
Replies: 29
Views: 2,968
Posted By BobTurner
+1. To quote Pogo, “We have met the enemy, and he...

+1. To quote Pogo, “We have met the enemy, and he is us.”
Forum: RV-10 03-14-2020, 02:50 PM
Replies: 10
Views: 708
Posted By BobTurner
I don’t remember - but there are certainly places...

I don’t remember - but there are certainly places where an offset or double offset rivet tool was needed or at least preferred.
Forum: GPS 03-13-2020, 11:31 AM
Replies: 7
Views: 539
Posted By BobTurner
Probably okay

5 minutes is not long enough. To dig these weak signals out of the noise, the box has to guess at about where it is. For a new Garmin box, the first guess will be Olath, Kansas. It will take time to...
Forum: RV-4 03-11-2020, 06:20 PM
Replies: 24
Views: 2,331
Posted By BobTurner
Thanks, Sam. Since the OP is new to EAB he should...

Thanks, Sam. Since the OP is new to EAB he should note that FAR 91.205 is much less restrictive than the requirements for a typical, say, 172, airplane. There are significant additional requirements...
Forum: COMM 03-11-2020, 04:55 PM
Replies: 18
Views: 1,303
Posted By BobTurner
If it’s on the bench: How are you connecting the...

If it’s on the bench:
How are you connecting the transmitters to an antenna? Typical com antennas (quarter wave whips) must have a decent ground plane (with coax shield attached to it) to operate...
Forum: RV-4 03-11-2020, 12:02 PM
Replies: 24
Views: 2,331
Posted By BobTurner
I see several conflicting posts wrt ifr...

I see several conflicting posts wrt ifr operations. The FARs limit EAB aircraft to day, vfr operation. So to operate at night, or under IFR, you must see a waiver in your operating limitations. It...
Forum: COMM 03-10-2020, 04:22 PM
Replies: 18
Views: 1,303
Posted By BobTurner
Well, this is a bit strong. Isolating the jacks...

Well, this is a bit strong. Isolating the jacks is best practice, and helps eliminate ground loops (alternator whine, etc) but shouldn’t cause your problems.
Just to be clear: Are you reporting what...
Forum: RV General Discussion/News 03-10-2020, 11:47 AM
Replies: 2
Views: 260
Posted By BobTurner
Are you sure the Vizion pin in question says...

Are you sure the Vizion pin in question says RS232-OUT (not IN?). To the best of my knowledge the GRT does not need nor accept data from the autopilot. But call GRT, they’re pretty receptive to this...
Forum: COMM 03-09-2020, 09:39 PM
Replies: 18
Views: 1,303
Posted By BobTurner
A transmit interlock is a wire from PTT for #1 to...

A transmit interlock is a wire from PTT for #1 to an interlock or mute input on #2, and vice versa. So if the antennas are close together you won’t get annoying feed thru on the radio not in use. To...
Forum: COMM 03-08-2020, 06:41 PM
Replies: 3
Views: 355
Posted By BobTurner
Active, electronic cancellation is more difficult...

Active, electronic cancellation is more difficult for a mike than for a headphone. As described above, mikes usually use mechanical cancellation based on direction: the "good" signal (your voice)...
Forum: RV-14 03-08-2020, 03:02 PM
Replies: 23
Views: 3,165
Posted By BobTurner
I think you’re thinking of power cables at low...

I think you’re thinking of power cables at low frequencies or DC, and ohmic losses. At a GHz, it hardly matters how thick the wires are - nearly all the current is in a thin layer at the surface of...
Forum: RV General Discussion/News 03-07-2020, 03:03 PM
Replies: 20
Views: 1,407
Posted By BobTurner
Note: I have deleted my previous reply. After...

Note: I have deleted my previous reply. After reading the aopa article, I see that it is more of the faa’s imposing strange limitations on operation under basic med. However, that does not change my...
Forum: RV-6/6A 03-07-2020, 11:29 AM
Replies: 13
Views: 1,587
Posted By BobTurner
Yes, best glide varies as the square root of...

Yes, best glide varies as the square root of weight (if 10% below gross, reduce the gross weight speed by 5%). Also, in the real world, where one wants to cover distance over the ground, the wind...
Forum: RV General Discussion/News 03-06-2020, 04:07 PM
Replies: 20
Views: 1,407
Posted By BobTurner
George, I agree with what you’ve said. Some good...

George,
I agree with what you’ve said. Some good examples. Would you comment on the one thing that has me in a tizzy? The idea that two pilots agree that pilot A (who will also be the safety pilot)...
Forum: RV General Discussion/News 03-06-2020, 12:12 PM
Replies: 18
Views: 1,288
Posted By BobTurner
Disclaimer: I don’t own a TT (I have a Trio Pro...

Disclaimer: I don’t own a TT (I have a Trio Pro which works great).
Let’s be fair. Like many low cost autopilots, the Gemini won’t display heading at all. It only displays ground track. Read the...
Forum: RV-14 03-06-2020, 11:46 AM
Replies: 7
Views: 1,107
Posted By BobTurner
It is fun to dream. Just remember, avionics...

It is fun to dream. Just remember, avionics should be among your last purchases. They change faster than anything else.
One detail: get a 750 installation manual, if possible, and look at the fine...
Forum: RV General Discussion/News 03-06-2020, 12:30 AM
Replies: 20
Views: 1,407
Posted By BobTurner
IF the safety pilot is also THE PIC - the person...

IF the safety pilot is also THE PIC - the person responsible for the safe and legal operation of the airplane, the final authority... then yes, you are correct. If in fact you are the final...
Forum: RV General Discussion/News 03-05-2020, 10:58 PM
Replies: 20
Views: 1,407
Posted By BobTurner
We are not in agreement. CFI can log as PIC time...

We are not in agreement.
CFI can log as PIC time when acting as an instructor, true.
Pilot acting as required safety pilot may log PIC time only when he is the actual PIC: person responsible for safe...
Forum: RV General Discussion/News 03-05-2020, 10:41 PM
Replies: 5
Views: 549
Posted By BobTurner
I have no idea where the 90% number came from....

I have no idea where the 90% number came from. For certification, 51% of the aircraft has to have been built by amateurs. To get a limited repairman’s certificate, you have to have been listed on the...
Forum: RV General Discussion/News 03-05-2020, 02:46 PM
Replies: 20
Views: 1,407
Posted By BobTurner
I DID read your post. Did you read mine? FAR...

I DID read your post. Did you read mine?
FAR 61.51 (e)(iii) (which is the relevant reg for logging safety pilot time as PIC) places an additional burden on a pilot who wants to log safety pilot time...
Forum: RV General Discussion/News 03-05-2020, 10:15 AM
Replies: 20
Views: 1,407
Posted By BobTurner
You left out an important fact: safety pilot can...

You left out an important fact: safety pilot can log PIC time only if he acts as THE PIC, e.g., the person legally responsible for the safe and legal operation of the aircraft. If I am the safety...
Forum: RV General Discussion/News 03-03-2020, 11:58 PM
Replies: 18
Views: 1,288
Posted By BobTurner
Mine is rock solid.

Mine is rock solid.
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