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Search: Posts Made By: Doug
Forum: My RV Build Project 03-25-2018, 06:03 PM
Replies: 24
Views: 7,164
Posted By Doug
Well that acquisition just kicked you town the...

Well that acquisition just kicked you town the track by a year or four. Great workspace.
Forum: RV General Discussion/News 11-24-2016, 02:51 AM
Replies: 9
Views: 2,084
Posted By Doug
As other have said check for binding through the...

As other have said check for binding through the full range. I discovered an over long #8 actuator cover panel screw was contacting the mechanism. The motor had sufficient power and mechanical...
Forum: RV General Discussion/News 10-17-2016, 03:01 PM
Replies: 21
Views: 4,956
Posted By Doug
Flipped at 195 then retired 😏at 386 landings....

Flipped at 195 then retired 😏at 386 landings. These were my second set of the original Aero trainers, and my landings are nothing to write home about. I aim for 3-point landings and rarely use a...
Forum: RV Photo/Video URLs 05-17-2016, 05:38 PM
Replies: 116
Views: 34,385
Posted By Doug
Eddie, Excellent video, very good demonstration...

Eddie,
Excellent video, very good demonstration and I'm pretty sure this is a major killer in most categories not just RVs. Thanks for documenting it so well. I need to go through this myself with...
Forum: RV General Discussion/News 04-14-2016, 06:29 PM
Replies: 35
Views: 8,761
Posted By Doug
I have always wondered about this assumption...

I have always wondered about this assumption since I read an article where John Thorp was quoted as saying "The optimum airflow over the engine is opposite to what you want over the outside of the...
Forum: RV-3 04-13-2016, 05:41 PM
Replies: 24
Views: 9,107
Posted By Doug
Can you clarify what 'reverses elevator control'...

Can you clarify what 'reverses elevator control' means.
Thanks,
Forum: Traditional Aircraft Engines 03-28-2016, 12:55 PM
Replies: 50
Views: 11,223
Posted By Doug
Check your spark plug resistances - all should be...

Check your spark plug resistances - all should be < 5kohms. High resistances can lead to flash overs elsewhere in the ignition system causing the stumble you describe.
Forum: International 03-17-2016, 02:30 PM
Replies: 5
Views: 1,325
Posted By Doug
Siding Springs? If so I'm curious to hear your...

Siding Springs? If so I'm curious to hear your story.
Forum: RV General Discussion/News 03-11-2016, 03:59 PM
Replies: 32
Views: 7,834
Posted By Doug
Actually this was my original paper on the...

Actually this was my original paper on the subject. It certainly would have gone unnoticed without Kevin Horton who introduced it to other test pilots during a conference, the NTPS picked it up from...
Forum: Traditional Aircraft Engines 02-21-2016, 08:37 PM
Replies: 63
Views: 18,088
Posted By Doug
Is that a pool of oil?

Is that a pool of oil?
Forum: RV Ongoing Maintenance Issues 01-28-2016, 12:23 PM
Replies: 28
Views: 9,218
Posted By Doug
Kyle, I have the same EIS4000. I have just read...

Kyle,
I have the same EIS4000.

I have just read through the posts here and on HA and I am a little confused with the mechanical fuel gauge measurement agreement with the EIS. Did the mechanical...
Forum: RV Ongoing Maintenance Issues 12-05-2015, 11:14 AM
Replies: 1
Views: 825
Posted By Doug
Frankly, I wouldn't bother, but they are...

Frankly, I wouldn't bother, but they are certainly not worthless.

I don't know about the '3 but in my aeroplane I can swing the indicated quantity shown on the gauge by more than half a tank by...
Forum: RV General Discussion/News 12-01-2015, 06:52 PM
Replies: 10
Views: 1,855
Posted By Doug
I searched Ebay for genuine Bose replacement...

I searched Ebay for genuine Bose replacement parts about 18months ago and found a supplier in the US with the 'Cushion Kit' P/N 022243 for approx $25. The new cushions completely transformed the...
Forum: RV-9/9A 11-17-2015, 06:11 AM
Replies: 10
Views: 1,971
Posted By Doug
Who supplies the Magnesium sump?

Who supplies the Magnesium sump?
Forum: RV-6/6A 11-03-2015, 02:32 PM
Replies: 11
Views: 3,495
Posted By Doug
I had no problem making the standard parts work. ...

I had no problem making the standard parts work.

As others have said assemble the break/rudder pedal weldments into the hinge blocks and clamp the 3/4" angle and brake pedal in place, I used...
Forum: RV General Discussion/News 10-25-2015, 03:33 AM
Replies: 9
Views: 2,136
Posted By Doug
Axe blade sharp edge as a bucking bar - worked...

Axe blade sharp edge as a bucking bar - worked for me. I may have also used slightly shortened rivets too. The mass of blade gave it sufficient inertia to set these with ease.
Forum: Traditional Aircraft Engines 10-22-2015, 05:11 PM
Replies: 12
Views: 2,472
Posted By Doug
I used Hawker Pacific Blue Seal Engines at...

I used Hawker Pacific Blue Seal Engines at Bankstown Airport here in Sydney, Australia. (Now Bilyara Blue Seal Engines) ... but I am certain you don't want to send your carb to Australia for rebuild.
Forum: RV-8/8A 10-21-2015, 09:16 PM
Replies: 7
Views: 1,862
Posted By Doug
Depends also on how low the wheel pants were...

Depends also on how low the wheel pants were fitted to the wheels.

I set mine according to the plans with a 1" gap between the Aero Trainer tyre tops and the wheel pant and I'm pretty sure there is...
Forum: Traditional Aircraft Engines 10-21-2015, 09:04 PM
Replies: 12
Views: 2,472
Posted By Doug
I have not done a carb overhaul but I have seen a...

I have not done a carb overhaul but I have seen a pretty good video covering the procedure. Possibly it can be found on youtube. Certainly does look simple.

I chose not to work on my own...
Forum: RV General Discussion/News 10-14-2015, 05:20 PM
Replies: 12
Views: 2,881
Posted By Doug
You are correct - I retracted.

You are correct - I retracted.
Forum: RV General Discussion/News 10-14-2015, 03:56 PM
Replies: 12
Views: 2,881
Posted By Doug
Seeing as you have been allocated the tail number...

Seeing as you have been allocated the tail number "B-KOO" the authority should be able to give you the corresponding 24bit code. I don't think there is any more information required to generate the...
Forum: COMM 10-13-2015, 02:56 PM
Replies: 18
Views: 2,924
Posted By Doug
If you swap headsets does the problem follow?...

If you swap headsets does the problem follow?
Does the problem remain with the intercom power switched off? On my PS intercom turning the LH knob fully CCW the intercom is switched off and the...
Forum: Engine Monitors 10-07-2015, 05:44 PM
Replies: 8
Views: 1,876
Posted By Doug
Just a thought - do you have extension leads...

Just a thought - do you have extension leads connected to the probe? If they are crimped to quick connects or in some other way connected to the extension wires try replacing these connections and...
Forum: RV General Discussion/News 09-29-2015, 06:25 PM
Replies: 15
Views: 2,740
Posted By Doug
OK I misread the original post - you were using a...

OK I misread the original post - you were using a squeezer. The die is under size and you should not get the rings at all. Apologies.
Forum: Traditional Aircraft Engines 09-29-2015, 06:10 PM
Replies: 32
Views: 6,620
Posted By Doug
I have had some experience with polyurethanes -...

I have had some experience with polyurethanes - we learned a lot - plenty can go wrong. I do applaud your pragmatic approach and will watch for your progress.

The term 'polyurethane' is about as...
Forum: RV General Discussion/News 09-27-2015, 03:58 AM
Replies: 15
Views: 2,740
Posted By Doug
The snap is fine - the damage is due to slight...

The snap is fine - the damage is due to slight lateral movement between the rivet and the snap. What is normally done is to put a small piece of masking tape on the riveting face of the snap, this...
Forum: RV-14 08-04-2015, 06:58 PM
Replies: 1
Views: 1,204
Posted By Doug
That's where mine went/go!

That's where mine went/go!
Forum: RV General Discussion/News 07-30-2015, 03:27 PM
Replies: 106
Views: 28,929
Posted By Doug
In applications where voids (like these) are not...

In applications where voids (like these) are not permitted common practice (where I worked) was to briefly subject the mixed batch to a very strong vacuum. The trapped air will 'boil off' over about...
Forum: RV-8/8A 07-30-2015, 05:33 AM
Replies: 11
Views: 3,427
Posted By Doug
First place I would check are around the rudder...

First place I would check are around the rudder pedals, brake cylinder and rudder cable attachment to the pedals. Aeros can redistribute items like this into obscure parts of the airframe.
Forum: RV Ongoing Maintenance Issues 07-08-2015, 02:34 AM
Replies: 14
Views: 3,753
Posted By Doug
Yes not a helpful way to express it - point...

Yes not a helpful way to express it - point taken. What I was trying to say is that if you have an open p-lead ground you cannot be certain that both mags are indeed working.

If say the right...
Forum: RV Ongoing Maintenance Issues 07-06-2015, 11:38 PM
Replies: 14
Views: 3,753
Posted By Doug
If the engine quits when you move the switch to...

If the engine quits when you move the switch to 'off' then the right mag is not working at all. If the engine continues to run (in the 'off' posn) then the right mag p-lead connections are suspect....
Forum: Engine Monitors 06-28-2015, 05:04 PM
Replies: 5
Views: 1,239
Posted By Doug
150psi unit is marked '0-10bar'. I purchased mine...

150psi unit is marked '0-10bar'.
I purchased mine through Jegs with a part number of 360-004.
The packaging has an additional number 'V1521001040D' - not sure what this is.
Forum: RV General Discussion/News 06-28-2015, 04:59 PM
Replies: 16
Views: 3,294
Posted By Doug
Also check to see if the connecting internal...

Also check to see if the connecting internal cable is not too long. Initially I installed this sensor directly on the engine with the short stubby connecting pin. All seemed fine but after a couple...
Forum: Traditional Aircraft Engines 06-23-2015, 06:52 PM
Replies: 3
Views: 887
Posted By Doug
I have had to replace my VDO Oil Pressure sender...

I have had to replace my VDO Oil Pressure sender at 226 hours. (EIS4000) High probability that this is your problem.
Forum: Electrical Systems 06-15-2015, 04:10 PM
Replies: 9
Views: 1,698
Posted By Doug
Do you have a large capacitive load downstream of...

Do you have a large capacitive load downstream of the contactor? This might take the form of a large filter or may be a high capacity DC/DC converter. The peak inrush current across the initially...
Forum: COMM 05-24-2015, 05:36 PM
Replies: 8
Views: 2,802
Posted By Doug
It is possible the intercom output is transformer...

It is possible the intercom output is transformer coupled in which case 130ohms would be a reasonable measurement across the output. If I designed an intercom like this I would use a transformer to...
Forum: COMM 05-21-2015, 08:17 PM
Replies: 8
Views: 2,802
Posted By Doug
A simple test of the headsets with an alternate...

A simple test of the headsets with an alternate audio source would be a good first step.
Perhaps just plug them into a home audio system.
Forum: Engine Monitors 05-19-2015, 05:03 PM
Replies: 6
Views: 1,580
Posted By Doug
Checking he User's Manual I cannot see any...

Checking he User's Manual I cannot see any restore to defaults option.

I think you will need to step through all the setup fields by repeatedly pressing the 'NEXT' key (or holding it down) before...
Forum: Glass Cockpit 05-18-2015, 12:37 AM
Replies: 9
Views: 3,303
Posted By Doug
Drop a note to Stein Air or Garmin AT (+01...

Drop a note to Stein Air or Garmin AT (+01 800525-6726) and have them forward you a copy of a document to assist in identifying the correct part for your radio. Two versions of both the SL40 and...
Forum: RV General Discussion/News 05-17-2015, 05:48 PM
Replies: 6
Views: 1,756
Posted By Doug
Did someone say beer!! Assuming the crackling...

Did someone say beer!!

Assuming the crackling audio is in your headset while you transmit (side tone) and the transmitted signal is clean and clear, I suggest checking the SL40's internal intercom...
Forum: RV-7/7A 05-15-2015, 05:33 AM
Replies: 11
Views: 3,840
Posted By Doug
I have a 160hp O-320 RV-6 and had the opportunity...

I have a 160hp O-320 RV-6 and had the opportunity today with some smooth air at 8500', baro was 1030hpa hiving a pressure height of approx 8000'. OAT 5 deg C.
Full throttle, 2591 rpm 21.5" mp...
Forum: RV Ongoing Maintenance Issues 05-11-2015, 06:19 PM
Replies: 50
Views: 23,993
Posted By Doug
Dan, Dielectric grease is worthwhile especially...

Dan,

Dielectric grease is worthwhile especially since there is a risk of moisture with contacts that do not appear to be gold plated. Good idea - in fact I will call into my local auto parts store...
Forum: Electrical Systems 05-09-2015, 04:07 AM
Replies: 6
Views: 1,562
Posted By Doug
I would ask this question to your battery...

I would ask this question to your battery manufacturer. Only they would know for sure.
Forum: Traditional Aircraft Engines 05-09-2015, 04:01 AM
Replies: 5
Views: 1,644
Posted By Doug
Mostly it only buys resale value and bragging...

Mostly it only buys resale value and bragging rights.

For me 60% (of 160) power brings 150 knot TAS cruise at an overall average consumption of 28 litres per hour. I am very pleased with this. I...
Forum: RV-4 05-07-2015, 04:24 PM
Replies: 17
Views: 4,318
Posted By Doug
Can you post a photo? It would be good to have...

Can you post a photo? It would be good to have that documented here.
Forum: Traditional Aircraft Engines 04-30-2015, 04:35 PM
Replies: 31
Views: 9,071
Posted By Doug
Boiling mogas is trapped between the fuel pump...

Boiling mogas is trapped between the fuel pump outlet check valve and the carby float valve, it continues to boil, the pressure increases to a point where the float valve is overcome and the...
Forum: RV Photo/Video URLs 04-28-2015, 06:29 AM
Replies: 20
Views: 7,598
Posted By Doug
'I PINK I CAN'

'I PINK I CAN'
Forum: RV General Discussion/News 04-27-2015, 03:32 PM
Replies: 18
Views: 6,212
Posted By Doug
My thought is that the fuel servo interprets a...

My thought is that the fuel servo interprets a lower pressure within the body (relative to the external static pressure) with higher velocity airflow through the device so will add fuel. Correct?
Forum: Traditional Aircraft Engines 04-21-2015, 06:20 PM
Replies: 21
Views: 4,516
Posted By Doug
How did you eliminate the 'magnetos as an issue'?...

How did you eliminate the 'magnetos as an issue'?
If this was simply by way of a test then it is unlikely to have given you an accurate result especially if the mags are marginal. Tests are not...
Forum: RV-14 04-18-2015, 06:44 AM
Replies: 7
Views: 2,824
Posted By Doug
A temperature drop of the air inside the tank or...

A temperature drop of the air inside the tank or an increase in atmospheric pressure will also look like a leak when using a 'sensitive' manometer.
Instead, try using an inflated balloon, if it...
Forum: Engine Monitors 04-06-2015, 07:43 PM
Replies: 9
Views: 2,101
Posted By Doug
Initially I used Vans transducer, it should have...

Initially I used Vans transducer, it should have worked nicely but was problematic from the start, failing within the first few hours; I think because the tacho drive 'pin' supplied was just a bit...
Forum: Traditional Aircraft Engines 04-05-2015, 06:54 AM
Replies: 94
Views: 22,159
Posted By Doug
Quite a mystery, #2 seems lean (or less rich) to...

Quite a mystery, #2 seems lean (or less rich) to me compared with the other cylinders - perhaps intermittently.
Look for the obvious first - you mentioned replacing fuel lines - check you are not...
Forum: RV General Discussion/News 03-29-2015, 03:57 PM
Replies: 44
Views: 12,140
Posted By Doug
Zip archive...

Zip archive here:

https://www.dropbox.com/sh/5w86t9dobquo0kt/AABzzxmk0Rr-G5DKL07adz1Sa?dl=0
Forum: RV General Discussion/News 03-28-2015, 07:06 AM
Replies: 18
Views: 4,486
Posted By Doug
Vern, That image is a gem. It also illustrates...

Vern,
That image is a gem. It also illustrates the decay in the energy during the sequence. Thanks for posting. Any chance you can put some parameters on the grid?
Forum: RV General Discussion/News 03-25-2015, 08:00 PM
Replies: 18
Views: 4,486
Posted By Doug
G_Zero, I have spent some time trying to figure...

G_Zero, I have spent some time trying to figure out what is going on with the resistor. Here is the best I can offer for now, others may wish to elaborate or correct.

A magneto has a primary circuit...
Forum: RV-7/7A 03-23-2015, 04:53 PM
Replies: 19
Views: 4,022
Posted By Doug
I have had good results by completely closing the...

I have had good results by completely closing the throttle during start. But the pre-requisite is that the carby's fuel bowl has fuel, so I run the electric pump for 20-30 seconds before and during...
Forum: Glass Cockpit 03-17-2015, 08:55 PM
Replies: 38
Views: 12,021
Posted By Doug
I really like the concept. Question: Is ribbon...

I really like the concept.

Question: Is ribbon cable available with tefzel insulation that is suitable for IDC termination?

I'm with Vern on a preference for D-sub connections in place of the...
Forum: RV General Discussion/News 03-12-2015, 07:09 AM
Replies: 19
Views: 3,779
Posted By Doug
Bob Avery's Rotabroach tool...

Bob Avery's Rotabroach tool (http://www.averytools.com/prodinfo.asp?number=17512) is a delight to use for just this purpose. A little 'exe' but hurts only once.
Forum: Alternative Engines 02-16-2015, 06:12 AM
Replies: 30
Views: 12,016
Posted By Doug
Ooh, I like where we are going here! Reaching now...

Ooh, I like where we are going here!
Reaching now for the FD (fluid dynamics) textbooks....
Forum: RV General Discussion/News 02-06-2015, 03:53 PM
Replies: 6
Views: 2,088
Posted By Doug
If you identify your prop and if you have gearleg...

If you identify your prop and if you have gearleg fairings installed, perhaps someone with the same configuration could give an RPM for 65% power. Use as minimum RPM in cruise.
Forum: Safety 01-24-2015, 02:42 AM
Replies: 14
Views: 5,507
Posted By Doug
I just joined the club of VDO oil pressure sender...

I just joined the club of VDO oil pressure sender failures (GRT EIS4000). Cruise OP was sliding between 86 and 97psi with no correllation with any other engine parameter. Replaced the sender, now...
Forum: International 01-20-2015, 05:16 AM
Replies: 19
Views: 4,439
Posted By Doug
Rob, I would like to visit the operation at YSBK...

Rob,
I would like to visit the operation at YSBK but this would not be until the first week in February. Does this fit with you? Assuming you are on standby of course.
Seeing as my home is in a...
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