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Search: Posts Made By: BobTurner
Forum: COMM Yesterday, 04:39 PM
Replies: 4
Views: 701
Posted By BobTurner
Since youíre paralleling the mikes, that means...

Since youíre paralleling the mikes, that means both will be Ďhotí whenever either person talks - increased background noise.
Forum: COMM 05-24-2018, 05:06 PM
Replies: 71
Views: 7,275
Posted By BobTurner
The little ball at the end adds some capacitance,...

The little ball at the end adds some capacitance, so the antenna will resonate at a bit shorter length than given by the formula for a given frequency.
Forum: Autopilots 05-23-2018, 07:53 PM
Replies: 32
Views: 1,655
Posted By BobTurner
I see in your sub-line that you have a Trio. It...

I see in your sub-line that you have a Trio. It uses a clutch that can slip under enough force - a better solution, imho, than using a shear screw for the same function.
Forum: California 05-23-2018, 06:28 PM
Replies: 17
Views: 947
Posted By BobTurner
They value the plane at everything you paid for...

They value the plane at everything you paid for it - including the sales tax!
Forum: COMM 05-23-2018, 12:42 PM
Replies: 71
Views: 7,275
Posted By BobTurner
If your antenna is mounted properly, as you said...

If your antenna is mounted properly, as you said it was earlier, left, right, front, back should all be the same.
The tech checks the transponder on 1090.
Forum: RV-10 05-22-2018, 04:53 PM
Replies: 5
Views: 429
Posted By BobTurner
The front of my uncompressed seats looks the...

The front of my uncompressed seats looks the same, about 6 1/2Ē above the metal. The low point, about 5Ē in front of the aft edge of the seat, looks closer to 4Ē, uncompressed.
Forum: California 05-22-2018, 04:19 PM
Replies: 17
Views: 947
Posted By BobTurner
An indemnity tax is a payment to the airport in...

An indemnity tax is a payment to the airport in anticipation of future bills, whether from accidents or normal wear and tear. Itís a user fee.
Forum: COMM 05-22-2018, 02:24 PM
Replies: 71
Views: 7,275
Posted By BobTurner
I didnít say that. In 2020 you must have ADSB-out...

I didnít say that. In 2020 you must have ADSB-out in class A,B,C, and E above 10,000í (and inside class B mode C veil). But there will be tons of guys below 10,000í who avoid those (B,C) areas, and...
Forum: COMM 05-22-2018, 01:49 PM
Replies: 71
Views: 7,275
Posted By BobTurner
Iím not sure thatís true. I thought you only had...

Iím not sure thatís true. I thought you only had to have a ground station receive your adsb-out message, to get a reply, including TIS-B data. However, if it is true that you need to be in radar...
Forum: COMM 05-22-2018, 01:41 PM
Replies: 71
Views: 7,275
Posted By BobTurner
True, but it only works if EVERYONE has adsb-out....

True, but it only works if EVERYONE has adsb-out. Just wait, thatís coming.
Forum: California 05-22-2018, 01:27 PM
Replies: 17
Views: 947
Posted By BobTurner
The tax is very close to 1% in most counties, and...

The tax is very close to 1% in most counties, and is assessed as of Jan 1 but not due until the end of August. So if you owned the plane on Jan 1, 2017, and your bill says 2017 and 2018, then this is...
Forum: RV-14 05-22-2018, 01:14 PM
Replies: 29
Views: 1,763
Posted By BobTurner
I have actually wondered about the opposite...

I have actually wondered about the opposite question: Is there a density altitude, above which true airspeed is higher with zero deg flaps? I did some experimenting around 16,000 DA (iirc) and...
Forum: RV-10 05-21-2018, 11:40 PM
Replies: 5
Views: 429
Posted By BobTurner
Iíll try to remember to measure it tomorrow when...

Iíll try to remember to measure it tomorrow when Iím at the airport. Iím sure you know that the seat gets lower as it moves aft. Iíll measure it full forward.
Forum: Glass Cockpit 05-21-2018, 11:32 PM
Replies: 8
Views: 352
Posted By BobTurner
Then make sure you install a wire, now, from a...

Then make sure you install a wire, now, from a RS-232 out port on the 625, for later use to provide gps data to a transponder (set format to ADSB+). Iím using a Trig TT-22 for mode S-ES output, works...
Forum: COMM 05-21-2018, 06:21 PM
Replies: 71
Views: 7,275
Posted By BobTurner
Thread drift...

Except in class A and B airspace, ATC does not promise separation between an ifr airplane and vfr ones, though they usually try.
Forum: COMM 05-21-2018, 04:32 PM
Replies: 71
Views: 7,275
Posted By BobTurner
Q: Are you sure your SA-005 antenna is mounted...

Q: Are you sure your SA-005 antenna is mounted correctly? The printed circuit from the coax connector must be horizontal, and the "bow-ties" at the end need to be vertical. e.g., the 6" x 7" PC board...
Forum: RV General Discussion/News 05-21-2018, 04:27 PM
Replies: 3
Views: 177
Posted By BobTurner
Can you say what model EFIS? If you go to the...

Can you say what model EFIS?
If you go to the thread I reference above, you will see a wiring diagram that will work with any EFIS. Just that with the newer ones, you may optionally by-pass the EIS...
Forum: COMM 05-21-2018, 02:59 PM
Replies: 71
Views: 7,275
Posted By BobTurner
Okay. So it looks like your receiver works okay...

Okay. So it looks like your receiver works okay on both frequencies. Things still point to the transponder/UAT antenna.
Forum: COMM 05-21-2018, 02:45 PM
Replies: 71
Views: 7,275
Posted By BobTurner
A Gulfstream will need to have a mode S-ES...

A Gulfstream will need to have a mode S-ES transponder, so maybe theyíre waiting for a scheduled transponder check before upgrading?
Have you seen other ADSB traffic on 1090 MHz (e.g., any jets)?
Forum: RV General Discussion/News 05-21-2018, 02:38 PM
Replies: 3
Views: 177
Posted By BobTurner
There is a current thread, “Trim position signal...

There is a current thread, “Trim position signal for EFIS”. Follow the same wiring for a Ray Allan position sensor for the flaps.
Newer (HX and newer) GRT EFIS units have a selectable (on/off) bias...
Forum: Glass Cockpit 05-21-2018, 02:14 PM
Replies: 8
Views: 352
Posted By BobTurner
Generally speaking, operating receivers without...

Generally speaking, operating receivers without an antenna will not harm anything. But those pins are close together - proceed with caution.
Forum: RV General Discussion/News 05-21-2018, 01:47 PM
Replies: 10
Views: 471
Posted By BobTurner
If your model has pull up resistors, you can...

If your model has pull up resistors, you can connect one end to ground, and the wiper connection to an analog input. Also connecting the other end to the input wonít hurt anything, but it doesnít do...
Forum: Electrical Systems 05-21-2018, 01:38 PM
Replies: 5
Views: 447
Posted By BobTurner
Just so everyone is clear: the LEDs you are...

Just so everyone is clear: the LEDs you are talking about must have built in resistors (or other current limiting devices).
Forum: COMM 05-21-2018, 01:20 PM
Replies: 71
Views: 7,275
Posted By BobTurner
Have you looked to see if youíre getting in...

Have you looked to see if youíre getting in flight weather? Since that comes only from ground stations on 978 MHz, and they donít need to be Ďpingedí by you for wx, this info may help isolate the...
Forum: California 05-20-2018, 06:59 PM
Replies: 5
Views: 502
Posted By BobTurner
Thatís true. And he can be paid in cash for his...

Thatís true. And he can be paid in cash for his services. But he cannot be compensated by giving him ďfreeĒ flight time. Essentially, the airplane time is being used as compensation, and that is not...
Forum: RV General Discussion/News 05-20-2018, 06:38 PM
Replies: 6
Views: 581
Posted By BobTurner
Itís all about power and drag. At sea level the...

Itís all about power and drag. At sea level the air is denser, so you can make more power. At full throttle youíll normally get max speed at sea level.
OTOH, if you restrict power to 75% of max,...
Forum: RV-10 05-20-2018, 06:14 PM
Replies: 11
Views: 1,388
Posted By BobTurner
A slightly negative reply. Thereís another thread...

A slightly negative reply.
Thereís another thread going on about an RV purchase where the new owner consulted with a cfi and an A&P. All 3 missed that the installed electronic ignition could mask a...
Forum: Glass Cockpit 05-20-2018, 06:00 PM
Replies: 9
Views: 449
Posted By BobTurner
IMHO no avionics should be so hot that they can...

IMHO no avionics should be so hot that they can burn you.
As to gps antenna placement: To gain the TSO the manufacturer had to show that it worked under certain worst-case conditions. You can fly for...
Forum: Safety 05-20-2018, 10:09 AM
Replies: 22
Views: 3,095
Posted By BobTurner
They should have been, or will be, issued to you...

They should have been, or will be, issued to you by the person who does your airworthiness inspection. They need to be kept in the airplane.
Forum: RV-6/6A 05-19-2018, 10:54 PM
Replies: 2
Views: 579
Posted By BobTurner
Congratulations! Another poster here who does...

Congratulations!
Another poster here who does pre-buys reminded buyers to be sure the operating limitations are on-board. Hopefully you got those, too.
Forum: RV-12 05-19-2018, 10:47 PM
Replies: 7
Views: 905
Posted By BobTurner
Me two (also too). I do think there is the...

Me two (also too).
I do think there is the possibility that pilots of light aircraft flare into zero sink rate, while when the airplane is heavy they pull up to the same attitude as light -but thatís...
Forum: California 05-19-2018, 07:37 PM
Replies: 5
Views: 502
Posted By BobTurner
+1 If you want some imaginative (but incorrect)...

+1
If you want some imaginative (but incorrect) ideas for your article on how to get around these rules, you need only read these forums. -:)
Forum: COMM 05-19-2018, 05:53 PM
Replies: 71
Views: 7,275
Posted By BobTurner
Thatís exactly where the FAA is most interested....

Thatís exactly where the FAA is most interested. At my home airport inside the mode C veil the FAA could track me right down to the ground on my performance report/rebate run, despite the fact that...
Forum: COMM 05-19-2018, 05:44 PM
Replies: 71
Views: 7,275
Posted By BobTurner
Thatís it. In between transmissions the antenna...

Thatís it. In between transmissions the antenna is in receive mode.

BTW, it sounds like you have not had your transponder formally checked. Strictly speaking you shouldnít be using it in flight if...
Forum: COMM 05-19-2018, 03:07 PM
Replies: 71
Views: 7,275
Posted By BobTurner
John, I think I do understand adsb pretty well,...

John,
I think I do understand adsb pretty well, and yes itís complicated (ďA camel is a horse that was designed by a committeeĒ). Feel free to send me a PM with specific questions if youíd like...
Forum: Safety 05-19-2018, 02:49 PM
Replies: 22
Views: 3,095
Posted By BobTurner
My engine is nearly the same vintage (2010) and...

My engine is nearly the same vintage (2010) and yes, they ship with red plastic covers where real hardware needs to go. IMHO the builder knew the red plastic piece had to be replaced, but...
Forum: RV General Discussion/News 05-16-2018, 11:22 AM
Replies: 18
Views: 1,674
Posted By BobTurner
Must be nice living in the flatlands. Here at LVK...

Must be nice living in the flatlands. Here at LVK 500 ft/min and 120 knots will put you into the side of a hill on the standard IDP.
Forum: RV General Discussion/News 05-16-2018, 11:03 AM
Replies: 18
Views: 1,674
Posted By BobTurner
If you set the minimum speed at 120 I think that...

If you set the minimum speed at 120 I think that will apply to descents, too. Youíll be unable to shoot an approach below 120 knots.
Forum: ADS-B 05-15-2018, 04:26 PM
Replies: 26
Views: 5,752
Posted By BobTurner
Unless you have a mode S transponder, all radar...

Unless you have a mode S transponder, all radar knows is your squawk code and altitude (and location). It looks to me like you have received info from a ground station.
I worked with Ed at Livermore...
Forum: ADS-B 05-15-2018, 12:55 PM
Replies: 26
Views: 5,752
Posted By BobTurner
1. There are a small number of ATC radar sites...

1. There are a small number of ATC radar sites that send traffic to those with a mode S transponder. But that’s not you, you get nothing directly from atc radar.
3. I would say directly, not...
Forum: RV General Discussion/News 05-15-2018, 01:39 AM
Replies: 11
Views: 842
Posted By BobTurner
You need a sign off from your doc AND the on-line...

You need a sign off from your doc AND the on-line course now. Then repeat the on-line course in two years; repeat both four years from now.
Forum: ADS-B 05-14-2018, 03:25 PM
Replies: 26
Views: 5,752
Posted By BobTurner
TIS-B client: low percentage indicates you were...

TIS-B client: low percentage indicates you were often out of contact with a ground station.
Your -82 signal is designed to be received by other aircraft who are listening on 978MHz, and ground...
Forum: RV General Discussion/News 05-13-2018, 06:42 PM
Replies: 48
Views: 3,172
Posted By BobTurner
FAR 91.227 decodes some of them.

FAR 91.227 decodes some of them.
Forum: RV-10 05-12-2018, 10:45 AM
Replies: 17
Views: 861
Posted By BobTurner
I donít think you can get an STC for an EAB,...

I donít think you can get an STC for an EAB, since it doesnít have a type certificate to begin with. I think the acronym you meant was ĎTSOí, and, yes, the TSO specifies external mounting. I take...
Forum: RV General Discussion/News 05-11-2018, 06:43 PM
Replies: 34
Views: 2,272
Posted By BobTurner
I don't think that's correct. Throttle at idle,...

I don't think that's correct. Throttle at idle, the flow is choked, and the manifold pressure may be, say, 15". The prop-engine is now a vacuum pump, doing work (getting energy from the airflow)...
Forum: RV General Discussion/News 05-11-2018, 06:37 PM
Replies: 34
Views: 2,272
Posted By BobTurner
Most governors will govern down to below 1700 RPM...

Most governors will govern down to below 1700 RPM or so. Otherwise, when you tested it at 1700 rpm on run up, nothing would happen.
Forum: RV General Discussion/News 05-11-2018, 04:38 PM
Replies: 59
Views: 5,400
Posted By BobTurner
Jesse, this is a common but incorrect perception....

Jesse, this is a common but incorrect perception. You need to go to the for-hire FARs (like part 135), where it is more clear that you may share the expenses of a flight with passengers ONLY when the...
Forum: Traditional Aircraft Engines 05-11-2018, 11:10 AM
Replies: 39
Views: 4,309
Posted By BobTurner
I like your attitude. Having said that, let me...

I like your attitude. Having said that, let me remind you that you bought an experimental airplane, with an experimental ignition system. It may well be that there is no other airplane in the world...
Forum: RV General Discussion/News 05-11-2018, 10:51 AM
Replies: 9
Views: 533
Posted By BobTurner
This is correct. Also, all of the quotes posted...

This is correct.
Also, all of the quotes posted from the AIM are correct, and are not contradictory. You need to read them carefully.
Forum: RV General Discussion/News 05-10-2018, 08:46 PM
Replies: 59
Views: 5,400
Posted By BobTurner
The waiver (LODA) is for using the airplane for...

The waiver (LODA) is for using the airplane for compensation. You donít need the waiver if no compensation is involved, like personal travel. No waiver is needed if you get a Flight Review for free....
Forum: RV General Discussion/News 05-10-2018, 08:17 PM
Replies: 59
Views: 5,400
Posted By BobTurner
The FAAís position is quite clear: an EAB...

The FAAís position is quite clear: an EAB airplane may not be used for compensation. They will issue a waiver (LODA) specifically for transition training only because it cannot realistically be done...
Forum: RV General Discussion/News 05-08-2018, 02:33 PM
Replies: 11
Views: 683
Posted By BobTurner
This comment suggests that you donít understand...

This comment suggests that you donít understand that the Vans system is not like that on most production airplanes. There is not a continuous loop; there are two separate rudder cables, one for left,...
Forum: Glass Cockpit 05-08-2018, 12:36 PM
Replies: 87
Views: 56,912
Posted By BobTurner
Donít know if the EX is the same as the HX. On...

Donít know if the EX is the same as the HX.
On the HX, go to:
<PFD setup menu>
<pitch ladder offset>
to move the pitch bars up or down, until they show level in level flight.
Forum: RV General Discussion/News 05-07-2018, 11:06 PM
Replies: 29
Views: 1,838
Posted By BobTurner
Is this what modern instruction has come to? You...

Is this what modern instruction has come to? You must have an iPad and Foreflight as a student pilot? Iíd suggest you get your certificate, then decide for yourself what gizzmos youíd like.
For the...
Forum: Electrical Systems 05-07-2018, 09:30 PM
Replies: 7
Views: 705
Posted By BobTurner
If itís the classic Whalen system thereís only...

If itís the classic Whalen system thereís only one power supply for all three strobes. Sounds like the high voltage cable has a short.
Forum: RV-8/8A 05-06-2018, 03:24 PM
Replies: 39
Views: 2,437
Posted By BobTurner
Youíre drilling structural parts here. Iíd call...

Youíre drilling structural parts here. Iíd call Vans and see if theyíre okay with new 5/8Ē holes close to the old, incorrect ones. They might suggest a doubler or some other reinforcement.
Forum: RV General Discussion/News 05-06-2018, 01:31 PM
Replies: 7
Views: 764
Posted By BobTurner
I think you meant, ďCan anyone recommend a...

I think you meant, ďCan anyone recommend a Designated ExaminerĒ?
I can but heís in Northern CA.
Forum: RV-8/8A 05-05-2018, 10:45 PM
Replies: 39
Views: 2,437
Posted By BobTurner
I think you donít understand that an RV does not...

I think you donít understand that an RV does not have a continuous loop cable circuit, as most certified planes do. On the ground the cables will be slightly slack, unless you press on both at the...
Forum: California 05-05-2018, 01:57 PM
Replies: 12
Views: 877
Posted By BobTurner
Just my experience: Report and pay the sales/use...

Just my experience:
Report and pay the sales/use tax now. They wonít ask any questions until you register it. Then point them to the old tax forms. As far as I can tell if the numbers look anywhere...
Forum: RV Ongoing Maintenance Issues 05-04-2018, 02:43 PM
Replies: 13
Views: 893
Posted By BobTurner
How about registration renewal?

How about registration renewal?
Forum: RV-8/8A 05-04-2018, 02:09 PM
Replies: 39
Views: 2,437
Posted By BobTurner
Start simple. Put an ohmmeter on the ignition...

Start simple. Put an ohmmeter on the ignition switch (engine and power off) and confirm that on L the right mag is grounded, and vice versa on R.
Forum: RV Ongoing Maintenance Issues 05-03-2018, 12:18 PM
Replies: 19
Views: 2,176
Posted By BobTurner
There are many good suggestions above, and in the...

There are many good suggestions above, and in the long run will save you time and aggrevation, increase resale value, etc. But, the ďofficial regsĒ donít require you to log any maintenance other than...
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