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Search: Posts Made By: BobTurner
Forum: RV Building Tips/Techniques Yesterday, 10:17 PM
Replies: 4
Views: 328
Posted By BobTurner
Stall angle of attack will not vary with airspeed.

Stall angle of attack will not vary with airspeed.
Forum: RV-14 Yesterday, 04:10 PM
Replies: 9
Views: 456
Posted By BobTurner
+1 Some screwdrivers are just better than others....

+1
Some screwdrivers are just better than others. I had a Craftsman #2 Phillips that would reliably remove damaged screws when others would not. It’s now retired due to wear, but if they still made...
Forum: VAF Classifieds (posts in here deleted after 30 days) 10-17-2019, 03:17 PM
Replies: 2
Views: 248
Posted By BobTurner
If you want to fly/drive to KLVK, you can have...

If you want to fly/drive to KLVK, you can have most of what I have (‘usual’ recommended number for a QB 10) in return for a donation to VAF. I’d like to keep a few in case I need to do a small repair...
Forum: RV General Discussion/News 10-17-2019, 03:12 PM
Replies: 7
Views: 417
Posted By BobTurner
In 2009 I noted that the price of engines was...

In 2009 I noted that the price of engines was escalating faster than inflation, faster than the stock market. So I ‘invested’ in an engine (with preservation oil, etc.) well before I needed it.
OTOH,...
Forum: RV General Discussion/News 10-17-2019, 01:22 PM
Replies: 16
Views: 1,801
Posted By BobTurner
Please change this. People have died trying to...

Please change this. People have died trying to ‘save the airplane’, rather than saving themselves (e.g., refused to land in a field, tried to make the airport.) One psychological but important...
Forum: RV-10 10-15-2019, 07:34 PM
Replies: 9
Views: 508
Posted By BobTurner
Poor English, I guess. Yes, I meant take them off...

Poor English, I guess. Yes, I meant take them off the rims. If you also swap left and right, you won’t change the direction of rotation. I’m not sure if that is important or not.
Forum: RV General Discussion/News 10-15-2019, 04:05 PM
Replies: 4
Views: 405
Posted By BobTurner
The instruction manual for the -10 gave specific...

The instruction manual for the -10 gave specific examples of how to reinforce cutouts in the subpanel. For the ribs, Vans does not approve so you’re on your own.
Forum: Tools 10-15-2019, 03:45 PM
Replies: 8
Views: 448
Posted By BobTurner
This will work, but it’s not quite as nice....

This will work, but it’s not quite as nice. Quality dimple dies are ‘springback’ compensated, e.g. the aluminum does not take a perfect set, but springs back a bit. The die is lightly larger than the...
Forum: RV-10 10-15-2019, 11:15 AM
Replies: 9
Views: 508
Posted By BobTurner
Because the wheels hang down in flight, you...

Because the wheels hang down in flight, you always touch down on the outer edge of the tire. Demount the tires, swap left and right, double their life.
Forum: ADS-B 10-13-2019, 11:34 PM
Replies: 24
Views: 971
Posted By BobTurner
Almost surely not your main problem, but ‘gps...

Almost surely not your main problem, but ‘gps antenna offset-longitudinal’ is the antenna to nose distance; probably not zero.
Forum: ADS-B 10-12-2019, 04:37 PM
Replies: 53
Views: 5,706
Posted By BobTurner
I do not think you can request certain times. You...

I do not think you can request certain times. You always get data from the entire flight closest to the time (Z) you entered.
Forum: ADS-B 10-12-2019, 04:13 PM
Replies: 24
Views: 971
Posted By BobTurner
Yes, it should show pressure altitude and squawk...

Yes, it should show pressure altitude and squawk code. If you are hard wired to your transponder, something is wrong - maybe the baud rates or format. If your UAT ‘sniffs’ this data wirelessly, you...
Forum: COMM 10-11-2019, 05:55 PM
Replies: 1
Views: 182
Posted By BobTurner
1. Listen to ATIS using pilot headphones jack 2....

1. Listen to ATIS using pilot headphones jack
2. Turn power to the intercom off
3. Turn up SL40 volume
Is the distortion still there? If yes, the problem is in the SL40. If no, the problem is in the...
Forum: Engine Monitors 10-11-2019, 12:47 AM
Replies: 3
Views: 221
Posted By BobTurner
Don’t know the issue here, But once you figure it...

Don’t know the issue here, But once you figure it out, re-set max CHT to something reasonable (425?). No matter what Lycoming says, 500 F is ludicrous.
When the red light comes on, the screen should...
Forum: COMM 10-08-2019, 12:48 PM
Replies: 3
Views: 296
Posted By BobTurner
I have a 420W, SL30, and home built intercom with...

I have a 420W, SL30, and home built intercom with lots of unswitched inputs tied to nav, both coms, music, etc. Plus one switch to switch mike and PTT between com radios. I ‘switch’ com receivers,...
Forum: ADS-B 10-08-2019, 12:42 PM
Replies: 36
Views: 2,543
Posted By BobTurner
No that’s incorrect. You need to be within radar...

No that’s incorrect. You need to be within radar coverage, AND other (adsb-in) aircraft need to be within range of a ground station, for them to see you. Out here in the west there are substantial...
Forum: ADS-B 10-06-2019, 03:00 PM
Replies: 36
Views: 2,543
Posted By BobTurner
Since the OP mentioned long x/c flights: get...

Since the OP mentioned long x/c flights: get adsb-in (use an iPad if you really want to keep costs down. The close to real time wx radar is great for making strategic (long-range) decisions when the...
Forum: ADS-B 10-06-2019, 02:50 PM
Replies: 53
Views: 5,706
Posted By BobTurner
Nit-pick

Strictly speaking, you don’t need to ask permission to enter class C, you just need to be in communication with ATC. I’ve heard a few controllers get a little irate, especially if someone asks for a...
Forum: ADS-B 10-06-2019, 02:38 PM
Replies: 53
Views: 5,706
Posted By BobTurner
No. To generate a report you should be in ‘rule’...

No. To generate a report you should be in ‘rule’ airspace - airspace where, by rule, adsb-out will be required in Jan. I flew above 10000’, and inside a Mode C veil, but never talked to anyone, and...
Forum: RV-10 10-06-2019, 02:19 PM
Replies: 7
Views: 464
Posted By BobTurner
Nutplates have a self-locking feature, you should...

Nutplates have a self-locking feature, you should not be able to screw in the rod end by hand.
Forum: RV General Discussion/News 10-06-2019, 12:09 AM
Replies: 31
Views: 2,020
Posted By BobTurner
Yes. Property tax is about 1% of the market value...

Yes. Property tax is about 1% of the market value of the aircraft.
Forum: RV General Discussion/News 10-05-2019, 01:35 PM
Replies: 20
Views: 1,187
Posted By BobTurner
+1 on communicate with your DAR to avoid...

+1 on communicate with your DAR to avoid surprises. I asked mine about transponder certification, he replied, as I expected, not needed for inspection, just before actual flight (I'm within a mode C...
Forum: California 10-05-2019, 11:36 AM
Replies: 22
Views: 1,944
Posted By BobTurner
I’m one of those guys (-10) at LVK, and would be...

I’m one of those guys (-10) at LVK, and would be glad to take you for a short ride. And I have a key to the -10 next door, so you can see what a nice paint job and interior look like (I did my own,...
Forum: RV-12/RV-12iS 10-04-2019, 05:16 PM
Replies: 40
Views: 3,243
Posted By BobTurner
I’ll take a crack at this. The problem is, there...

I’ll take a crack at this.
The problem is, there are many kinds of flutter. Ailerons oscillating up and down. Wings flapping. Wings bending about their lateral axis (torsion mode). Etc. Now throw in...
Forum: RV General Discussion/News 10-03-2019, 09:43 PM
Replies: 31
Views: 2,020
Posted By BobTurner
I don’t understand it either, but the bill says I...

I don’t understand it either, but the bill says I have a ‘Possessetory interest’ - whatever that is.
Forum: RV General Discussion/News 10-03-2019, 09:19 PM
Replies: 20
Views: 1,187
Posted By BobTurner
Also above 10,000’ MSL (almost everywhere), in...

Also above 10,000’ MSL (almost everywhere), in case you planned on testing climb rate up high.
Forum: Tools 10-03-2019, 04:06 PM
Replies: 16
Views: 630
Posted By BobTurner
You will need to bolt it down. Some dimpling...

You will need to bolt it down. Some dimpling requires a strong push on the handle.
Forum: RV General Discussion/News 10-03-2019, 10:52 AM
Replies: 22
Views: 1,857
Posted By BobTurner
The latter. Break the adhesion of the rubber to...

The latter. Break the adhesion of the rubber to the rim.
Forum: RV General Discussion/News 10-03-2019, 10:23 AM
Replies: 31
Views: 2,020
Posted By BobTurner
The instant you bought a part, or the whole...

The instant you bought a part, or the whole airplane, you owe sales/use tax, even if you later sell it. As to property tax, if you owned the airplane on Jan 1, you’ll owe property tax, due on Aug 31,...
Forum: RV General Discussion/News 10-02-2019, 11:44 PM
Replies: 31
Views: 2,020
Posted By BobTurner
In CA there are no exceptions. All sales, new or...

In CA there are no exceptions. All sales, new or used, business or private, are subject to sales/use tax. And get this: when they calculate the value subject to annual property tax, they’ll include...
Forum: RV-10 10-02-2019, 11:09 PM
Replies: 7
Views: 829
Posted By BobTurner
I would make two suggestions: 1. Weight and...

I would make two suggestions:
1. Weight and balance: emphasize that the -10’s cg must be calculated in the landing (low fuel) condition, where it is more likely to be beyond limits, as well as...
Forum: Electrical Systems 10-02-2019, 04:03 PM
Replies: 10
Views: 541
Posted By BobTurner
+1. When I added adsb out 90% of the labor was...

+1. When I added adsb out 90% of the labor was getting back into that connector. I wish I had asked Stein to leave a short wire on all the RS232 ports.
As Walt said, you’ll need them for the Dynon,...
Forum: RV-14 10-02-2019, 03:43 PM
Replies: 22
Views: 1,603
Posted By BobTurner
MP

What did the MP read before engine start? It should read the same as the altimeter setting, minus about 1” for every 1000’ above sea level.
I have noted that Vans induction system is very efficient....
Forum: RV General Discussion/News 10-02-2019, 12:53 PM
Replies: 31
Views: 2,020
Posted By BobTurner
Welcome to the world of taxes. It is illegal to...

Welcome to the world of taxes. It is illegal to charge sales tax on out of state purchases, so most states also have “use taxes”. By coincidence, the use tax rate is the same as the sales tax, and if...
Forum: Autopilots 09-29-2019, 12:00 AM
Replies: 9
Views: 422
Posted By BobTurner
Neither. Set the altitude to the current...

Neither. Set the altitude to the current altitude, or the altitude at which you intend to begin the approach.
Do you have the ARINC pair installed between the GRT and the autopilot? You need them for...
Forum: RV General Discussion/News 09-28-2019, 03:02 PM
Replies: 9
Views: 371
Posted By BobTurner
CS prop needs oil pressure to work. But the...

CS prop needs oil pressure to work. But the questioner has it backwards: low oil pressure causes too high, not too low, RPMs. Unless you have an aerobatic or twin prop, they work ‘backwards’.
Forum: RV-10 09-28-2019, 02:49 PM
Replies: 11
Views: 689
Posted By BobTurner
As I said, this looks like standard verbiage for...

As I said, this looks like standard verbiage for the open pilot clause. ‘Instrument rating’ does not mean cfii. These days all airplane cfi’s except a few really old guys (!) have an instrument...
Forum: RV-10 09-28-2019, 02:44 PM
Replies: 11
Views: 689
Posted By BobTurner
You won’t find RVs at flight schools because they...

You won’t find RVs at flight schools because they cannot legally be rented out, as is true for all EAB aircraft.

It looks to me like the underwriter got lazy, and simply defaulted to your ‘open...
Forum: RV General Discussion/News 09-28-2019, 02:20 PM
Replies: 9
Views: 371
Posted By BobTurner
Do the rpms come up to 2700 by the end of the...

Do the rpms come up to 2700 by the end of the runway?
If yes, then the fine pitch stop on the prop has slipped a bit.
If no, then the high rpm stop on the governor has slipped a bit.
Forum: RV General Discussion/News 09-27-2019, 10:16 PM
Replies: 27
Views: 3,109
Posted By BobTurner
I’m not the right person to answer this. Call...

I’m not the right person to answer this. Call Gallagher and ask. My guess is that the dollar cost won’t change with more tail wheel time. What will change are prerequisites. e.g., insurance company...
Forum: RV General Discussion/News 09-27-2019, 04:50 PM
Replies: 27
Views: 3,109
Posted By BobTurner
Just a bit early. Most of the quotes will only be...

Just a bit early. Most of the quotes will only be good for something like 60 days. But you could call a broker now, just to chat and get an informal estimate.
The ONLY way to get insurance is thru a...
Forum: RV General Discussion/News 09-27-2019, 02:48 PM
Replies: 27
Views: 3,109
Posted By BobTurner
This is the kind of question you should ask your...

This is the kind of question you should ask your broker. e.g., some years ago a new insurance company entered the EAB market, with good rates. I called my broker (Gallagher) and asked about them....
Forum: RV General Discussion/News 09-26-2019, 02:19 PM
Replies: 52
Views: 8,486
Posted By BobTurner
Oh, yes you can. It happens when the wife says,...

Oh, yes you can. It happens when the wife says, "You're spending too much time at the airport. We need to go away..."
Forum: RV-12/RV-12iS 09-25-2019, 05:10 PM
Replies: 22
Views: 2,353
Posted By BobTurner
Assuming the two batteries are in a similar...

Assuming the two batteries are in a similar charge state, they will share the load, 50-50. What you should do: Remove the negative lead from the aircraft battery. Jumper the portable battery,...
Forum: RV-7/7A 09-25-2019, 12:56 AM
Replies: 56
Views: 5,071
Posted By BobTurner
Standby EFIS (with its own battery), second nav,...

Standby EFIS (with its own battery), second nav, aux fuel pump, cabin static source, ... are all useless dead weight - unless the primary fails when you’re deep in the clouds. Then they become worth...
Forum: RV General Discussion/News 09-24-2019, 09:50 PM
Replies: 92
Views: 21,256
Posted By BobTurner
Just a caution - on most RVs the strobes are the...

Just a caution - on most RVs the strobes are the only anti-collision lights (assuming there is no tail beacon). In the US you’re supposed to have anti-collision lights for night ops, so you probably...
Forum: Electrical Systems 09-24-2019, 04:43 PM
Replies: 14
Views: 579
Posted By BobTurner
Hopefully you followed the standard...

Hopefully you followed the standard recommendation to run a multi-conductor, shielded bundle, for all audio lines, using one of the wires for the ground connection. The shield should be connected to...
Forum: Electrical Systems 09-24-2019, 03:51 PM
Replies: 14
Views: 579
Posted By BobTurner
Well, the obvious test is to get a pin puller,...

Well, the obvious test is to get a pin puller, and swap the audio input pins at the audio panel. e.g., com 1 is now the SL40, com 2 the GTR200. If com 1 (now the SL40) now has the problem and com 2...
Forum: RV General Discussion/News 09-23-2019, 11:17 AM
Replies: 10
Views: 931
Posted By BobTurner
Just remember to use solvent and remove the...

Just remember to use solvent and remove the grease from the threads prior to installing the nut. Final torque specs are for dry hardware.
Forum: West (and Southwest) 09-21-2019, 01:13 PM
Replies: 21
Views: 1,920
Posted By BobTurner
Here at LVK the taxi is free but the O2 is $60....

Here at LVK the taxi is free but the O2 is $60. So maybe it all works out.
Forum: West (and Southwest) 09-21-2019, 09:25 AM
Replies: 21
Views: 1,920
Posted By BobTurner
What did they charge for the O2?

What did they charge for the O2?
Forum: RV General Discussion/News 09-20-2019, 09:49 PM
Replies: 7
Views: 803
Posted By BobTurner
You should know that in the -10, the pilot sits...

You should know that in the -10, the pilot sits on top of the spar carry-thru. In the event of a vertical impact, there is little crush space available. The Vans foam was specifically designed by...
Forum: California 09-20-2019, 06:39 PM
Replies: 8
Views: 614
Posted By BobTurner
Depending of course on how far you need to go —...

Depending of course on how far you need to go — last few times I’ve been to LA we just used Uber. Short wait times, no parking hassles, cheaper than a rental car.
Forum: RV-7/7A 09-20-2019, 02:45 PM
Replies: 56
Views: 5,071
Posted By BobTurner
My thoughts - worth what you paid for them 1....

My thoughts - worth what you paid for them
1. Mag/start switches. Very clever design, but I think in practice it will be awkward holding two switches up with one hand. At best, you’ll push harder...
Forum: COMM 09-16-2019, 10:01 PM
Replies: 13
Views: 1,181
Posted By BobTurner
You do need to be careful with ohmmeters around...

You do need to be careful with ohmmeters around RF stuff. Some perfectly good antennas will show zero dc resistance to ground, or an open circuit to the antenna radiating element.
By all means, get...
Forum: COMM 09-16-2019, 04:03 PM
Replies: 13
Views: 1,181
Posted By BobTurner
Relay?

What would a relay be doing there? Unless carefully designed ($$) it will appear as a bad impedance bump, screwing up the transmission line. If it’s switching the antenna between two radios, there...
Forum: Midwest 09-16-2019, 11:19 AM
Replies: 8
Views: 993
Posted By BobTurner
The constitution forbids states from taxing...

The constitution forbids states from taxing interstate commerce, but many get around that by calling it a ‘sales or USE tax’. First see if IN has a use tax. If not, you’re in the clear.
Forum: Autopilots 09-16-2019, 11:07 AM
Replies: 11
Views: 1,741
Posted By BobTurner
No autothrottle. He was I think referring to...

No autothrottle. He was I think referring to non-precision, step down type approaches. I use the GRT Hx to drive the Trio, and it gives me the option of making step down descents holding either IAS...
Forum: RV-10 09-14-2019, 04:09 PM
Replies: 8
Views: 825
Posted By BobTurner
Paul, I was with you until that last line. I...

Paul, I was with you until that last line. I think reducing the (negative) angle of attack of the stabilizer with a shim will reduce, not help, the downward force that can be generated with full up...
Forum: RV General Discussion/News 09-11-2019, 07:49 PM
Replies: 1
Views: 286
Posted By BobTurner
Hi Frank, Bob Turner (hangar 311) here. I might...

Hi Frank,
Bob Turner (hangar 311) here. I might be able to help with the 650, nothing else. The good news is that the Garmin documentation is good. Just follow, step by step. Make sure you know what...
Forum: RV General Discussion/News 09-11-2019, 12:49 PM
Replies: 32
Views: 2,986
Posted By BobTurner
In the US practically all pressurized cylinders...

In the US practically all pressurized cylinders (Halon, oxygen) are subject to DOT rules, and are often required to be inspected (time frame depends on material, pressure, etc) periodically via a...
Forum: Propellers 09-10-2019, 05:24 PM
Replies: 24
Views: 2,065
Posted By BobTurner
Well, for starters, the hub forces. With a fixed...

Well, for starters, the hub forces. With a fixed pitch prop, the prop is one piece, and the aluminum prop carries the centrifugal load. Once you want the pitch to vary, you need two separate prop...
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