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Search: Posts Made By: CMW
Forum: RV General Discussion/News 04-21-2019, 05:25 PM
Replies: 8
Views: 1,011
Posted By CMW
Thank You!

Thank You!
Forum: RV General Discussion/News 04-21-2019, 11:38 AM
Replies: 8
Views: 1,011
Posted By CMW
Basic Med Doctor Near Livermore CA

My Kaiser Dr. just retired and I was assigned a new doctor. I asked him about doing a Basic Med physical and he told me that he wouldn't do it and he told me Kaiser legal won't let their doctors...
Forum: ADS-B 01-04-2017, 03:46 PM
Replies: 698
Views: 261,254
Posted By CMW
Mess

I think this whole thing is a huge mess that spiraled out of control.

The FAA claims that the Navworx units need to broadcast a SIL = 0 but AC 20-165 section 3.3.3.3 states that installations that...
Forum: ADS-B 12-20-2016, 11:38 AM
Replies: 698
Views: 261,254
Posted By CMW
I think the proposed AD has a lot to due with the...

I think the proposed AD has a lot to due with the 2020 mandate. Until 2020, ADSB should not be used as a primary source of information to ensure aircraft separation. Therefore, regardless of the...
Forum: ADS-B 12-20-2016, 11:00 AM
Replies: 698
Views: 261,254
Posted By CMW
Why an AD?

I don't understand how the FAA can issue an AD on a piece of equipment that is not required to be installed until 2020. AD's are supposed to be issued when something poses a risk to safe flight. ...
Forum: RV-8/8A 09-11-2016, 11:37 PM
Replies: 2
Views: 1,431
Posted By CMW
Here is what I did. If you look in the last...

Here is what I did. If you look in the last pictures of the post below, you can see a shelf I made that has a leg that folds down and locks. This effectively removes the footwells when the rear...
Forum: Primers 03-01-2015, 07:54 PM
Replies: 24
Views: 8,469
Posted By CMW
I would say, after watching your time lapse...

I would say, after watching your time lapse video, that you didn't stir the Akzo enough. Part A ( the green stuff) needs to be stirred really well especially if it has been sitting for a while. All...
Forum: RV-8/8A 02-22-2015, 11:15 AM
Replies: 7
Views: 2,709
Posted By CMW
Sam, Before you spend too much time on a shim, I...

Sam,

Before you spend too much time on a shim, I would temporarily mount the vertical stabalizer. If you need a 1/8 shim under the horizontal stabilizer, I think the vertical stabalizer will be...
Forum: RV-8/8A 01-29-2015, 01:47 AM
Replies: 39
Views: 26,011
Posted By CMW
My Solution

I started with a setup very similar to Craig's but my legs are too long to comfortably use the pedals. So I went back to try and improve the stock setup. Here's a few pictures of what I did.

The...
Forum: RV-8/8A 01-17-2015, 11:34 PM
Replies: 39
Views: 26,011
Posted By CMW
James, I think it was me that you're referring...

James,

I think it was me that you're referring to. But, I didn't post anything here. You had emailed me about my rear throttle lever and I had mentioned my improvements to the rear rudder pedals. ...
Forum: RV General Discussion/News 01-11-2015, 06:51 PM
Replies: 3
Views: 3,149
Posted By CMW
Thank You Steve!

Thank You Steve!
Forum: RV General Discussion/News 01-11-2015, 01:36 PM
Replies: 3
Views: 3,149
Posted By CMW
Garmin heated pitot - regulated or unregulated?

Can someone explain the benefits of the regulated pitot versus the unregulated one. Operationally, what's the difference?

Thanks
Forum: Safety 09-04-2014, 09:44 AM
Replies: 49
Views: 7,337
Posted By CMW
It's a great day when you've lived to tell about...

It's a great day when you've lived to tell about it......Upside down on a runway!
Forum: COMM 05-13-2014, 08:47 PM
Replies: 0
Views: 933
Posted By CMW
Garmin SL40 Remote Flip-Flop

I need to get rid of some of my extras so I thought I would offer these:

I've designed a small add on board to give the SL40 a remote flip/flop. The board mounts in place of the 15 pin d-sub on the...
Forum: RV-8/8A 11-06-2013, 03:19 PM
Replies: 9
Views: 3,124
Posted By CMW
Dan, the clamps I found at Aircraft Spruce but...

Dan, the clamps I found at Aircraft Spruce but since I bought them, I haven't been able to find them again. They are similar to the ones Gil pointed out but I think specifically for scat hose. I'll...
Forum: RV-8/8A 11-05-2013, 08:05 PM
Replies: 9
Views: 3,124
Posted By CMW
Sort of...

I added an access panel opposite the baggage door. This was to give me better access to the boost pump / filter. But it also gives better access to the left side of the panel. Not flying yet so...
Forum: RV General Discussion/News 05-26-2013, 12:31 AM
Replies: 12
Views: 1,843
Posted By CMW
You can still get real MEK at TAP Plastics, but...

You can still get real MEK at TAP Plastics, but it's $40/gal.
Forum: RV General Discussion/News 05-01-2013, 10:14 PM
Replies: 2
Views: 1,163
Posted By CMW
Thanks Paul! Chris

Thanks Paul!

Chris
Forum: RV General Discussion/News 05-01-2013, 08:24 PM
Replies: 2
Views: 1,163
Posted By CMW
RV-8 AOA port locations

I'm installing the Advanced Flight AOA ports in my RV8 wing. The installation manual lists the chord wise location as: "6" forward of the wing skin break at the spar about 12" aft of the leading...
Forum: Electrical Systems 04-17-2013, 01:22 AM
Replies: 8
Views: 2,717
Posted By CMW
Same issue

Jae,

Did you ever get an answer to your problem? I have the same issue with the front jack. If I plug an ipad into the music 1 input it works fine.

Chris
Forum: RV General Discussion/News 01-27-2013, 06:58 PM
Replies: 10
Views: 5,150
Posted By CMW
Levers in stock

If anyone is interested in the lever that is shown in Tim's post above, I still have a few of the anodized levers in stock.

You still need the rear lever kit from Vans. My lever just replaces the...
Forum: GPS 11-07-2012, 10:25 PM
Replies: 2
Views: 1,148
Posted By CMW
Thanks for the reply Steve. My antenna spacing...

Thanks for the reply Steve.

My antenna spacing might be a bit close, but I removed the 496 antenna from the shelf and moved it a couple of inches further away and the problem still occurred.

I have...
Forum: GPS 11-07-2012, 05:29 PM
Replies: 2
Views: 1,148
Posted By CMW
430W and 496 GPS antenna interference

I just finished installing a 430W in my RV8's panel. I also have a 496. Both antennas are mounted under the cowl. The 496 antenna is mounted on a shelf on the firewall and the 430's antenna is...
Forum: RV-14 07-23-2012, 11:23 PM
Replies: 163
Views: 92,828
Posted By CMW
Hey!

https://lh6.googleusercontent.com/-uZ-OiTCgN1U/UA4whjBtKCI/AAAAAAAAApA/cEzHrtqxnV8/s300/Cartman.jpg
Forum: RV-8/8A 07-03-2012, 12:55 AM
Replies: 24
Views: 12,762
Posted By CMW
Levers available

I have 14 of the anodized levers available. This will probably be the last batch for a while.

If you'd like one contact me at chriswelsh@sbcglobal.net

Thanks
Forum: RV General Discussion/News 06-25-2012, 07:58 PM
Replies: 9
Views: 2,323
Posted By CMW
Enco

An alternate to Mcmaster is Enco. I order all my machining supplies from them. Cheaper than Mcmaster and pretty good quality. They have extremely fast...
Forum: Traditional Aircraft Engines 06-24-2012, 11:03 PM
Replies: 9
Views: 2,666
Posted By CMW
I ran into this also and my solution was to...

I ran into this also and my solution was to install straight NPT fittings wherever possible and have the hose made with a 45 or 90 deg flared fitting. If you need an angled fitting on both ends of...
Forum: RV General Discussion/News 06-06-2012, 07:44 PM
Replies: 6
Views: 1,443
Posted By CMW
I had the same problem

Mike,

I also have a TMX-360 and had the same problem. I ended up cutting off the end of the bracket and remaking the part of the bracket the attaches to the engine and then riveted the two parts...
Forum: Fiberglass 05-29-2012, 10:42 AM
Replies: 9
Views: 8,141
Posted By CMW
Looks good

I just finished mine a couple of weeks ago. I only used 3 - 4 layers of glass and only overlapped the canopy gap by about 3/8". I only had about a 1/8" gap between the canopy frame and the roll...
Forum: RV Photo/Video URLs 05-23-2012, 06:08 PM
Replies: 8
Views: 1,926
Posted By CMW
Dang it.....I thought this thread was about...

Dang it.....I thought this thread was about paint.......


I've never even heard of the show Sky King....fun to watch....Thanks
Forum: RV General Discussion/News 04-15-2012, 10:17 PM
Replies: 3
Views: 1,782
Posted By CMW
Here's how I did it

http://www.vansairforce.com/community/showpost.php?p=346885&postcount=13
Forum: RV Building Tips/Techniques 04-08-2012, 11:20 PM
Replies: 124
Views: 66,134
Posted By CMW
I offset my hinges and made these. The back side...

I offset my hinges and made these. The back side has a boss that the hinge pin is JB Welded...
Forum: RV-8/8A 02-29-2012, 12:57 PM
Replies: 1
Views: 1,168
Posted By CMW
Seat Heater Wiring?

Anybody have any pictures of how they wired their seat heaters. I'm having a hard time coming up with a clean method of running the wires and connectors to the seats. I'm also undecided as to where...
Forum: Primers 02-27-2012, 07:46 PM
Replies: 10
Views: 3,868
Posted By CMW
MEK

Huh, it must be just a bay area thing for the MEK. I'll have to see about that. The replacement seems just as nasty as the real thing, so I'm not sure of the logic, but I never am when it comes to...
Forum: Primers 02-26-2012, 09:09 PM
Replies: 10
Views: 3,868
Posted By CMW
Kustom Kolor

Well, I went ahead and ordered a gallon kit of the Kustom Kolor 2K primer from TCP Global. Here's a link if anyone is interested:

http://www.tcpglobal.com/kustomshop/kspureprime.aspx

I primed a...
Forum: Primers 02-20-2012, 01:14 PM
Replies: 10
Views: 3,868
Posted By CMW
Primers in California

I'm just about ready to prime my cowl and canopy skirt and I was planning on using PPG K38 high build primer but just found out when I tried to buy some that it is not legal to use in California...
Forum: Tools 02-19-2012, 12:55 PM
Replies: 359
Views: 70,725
Posted By CMW
Tom, A beam style wrench is measuring the torque...

Tom,

A beam style wrench is measuring the torque by indicating the deflection in the beam. Therefore where you apply the load is critical.

For the clicker, intuitively you would think it doesn't...
Forum: Tools 02-19-2012, 12:05 PM
Replies: 359
Views: 70,725
Posted By CMW
You are absolutely correct. Torque coarsely...

You are absolutely correct. Torque coarsely measures the preload of a bolt thru the relationship: Torque = .2*Preload*Bolt Diameter. This relationship has many variables such as lubrication,...
Forum: Tools 02-18-2012, 09:36 PM
Replies: 359
Views: 70,725
Posted By CMW
Bill, I agree with you also. The .8 is not a...

Bill, I agree with you also. The .8 is not a constant and I think Allan should make that correction.

I also agree with you the the test conditions in the youtube video I made were not ideal, but...
Forum: Tools 02-18-2012, 11:22 AM
Replies: 359
Views: 70,725
Posted By CMW
Steve - Bob, Please watch this video. It shows...

Steve - Bob,

Please watch this video. It shows that for a clicker wrench you should not use it by grasping it in the middle. It will alter the setting...
Forum: Tools 02-17-2012, 06:28 PM
Replies: 359
Views: 70,725
Posted By CMW
Bob, you're probably right. I just based that...

Bob, you're probably right. I just based that statement on the fact that my 100lbs-ft clicker wrench happens to have a 12 inch effective length. My old beam style wrench is 17" (weird).

Mike,



I...
Forum: Tools 02-17-2012, 05:42 PM
Replies: 359
Views: 70,725
Posted By CMW
Mike, There is no torque without an arm. ...

Mike,



There is no torque without an arm. Calculate the force on the arm to react against the motor torque and you are right back to a simple cantilevered beam.

Bob,

The equation given in...
Forum: Tools 02-17-2012, 02:42 PM
Replies: 359
Views: 70,725
Posted By CMW
Maybe one more way

of showing the same thing (Sorry Larry). The system we're talking about is nothing more than a cantilevered beam. The moment (or torque in our case) along the beam is given by the linear equation...
Forum: Tools 02-17-2012, 12:00 AM
Replies: 359
Views: 70,725
Posted By CMW
Two More Videos

Okay, Here are 2 more videos that hopefully show once and for all that statics works and that the equation Wrench Torque = Bolt Torque (wrench length) / (wrench length + crows foot length) is...
Forum: Tools 02-16-2012, 07:20 PM
Replies: 359
Views: 70,725
Posted By CMW
Ok one more

Here's a video I just made answering one of the questions that I think Larry was asking and Steve clarified. Does it matter where you hold a clicker type torque wrench. Intuitively you would think...
Forum: Tools 02-16-2012, 03:31 PM
Replies: 359
Views: 70,725
Posted By CMW
One last attempt

Larry,

I'll try one more way to explain it.

Let's assume the "clicker" torque wrench is 2 feet long and the extension is .25 feet long (3").

Now put the extension on the torque wrench and you have...
Forum: Tools 02-16-2012, 01:56 PM
Replies: 359
Views: 70,725
Posted By CMW
Bob, I'm a "real" mechanical engineer, and your...

Bob, I'm a "real" mechanical engineer, and your explainations are 100% correct and in my opinion very clear. I'm not sure how much more explaination you could give.



Allan, I agree with this part...
Forum: Tools 02-13-2012, 09:55 PM
Replies: 359
Views: 70,725
Posted By CMW
Walt is correct, .8 is not a constant

Here's a simple diagram that shows the math. If the torque wrench is one foot long and the extension is 3in and installed in line with the handle then the .8 multiplier is correct if the wrench is...
Forum: RV-8/8A 02-08-2012, 12:23 AM
Replies: 9
Views: 2,938
Posted By CMW
Tubing trick

Greg, cut a piece of small diameter rubber or soft plastic tubing to the length of the rivet tail or just slightly longer. Place the short piece of tubing over the the rivet tail and then buck or...
Forum: RV General Discussion/News 01-11-2012, 06:08 PM
Replies: 497
Views: 252,862
Posted By CMW
Tooling engineer to modify and repair nuclear...

Tooling engineer to modify and repair nuclear reactors. I'm the idiot on the left standing around picking up some zoomies.
Actually this plant was so clean, we accused the health physics people of...
Forum: RV-8/8A 12-27-2011, 06:27 PM
Replies: 7
Views: 1,621
Posted By CMW
Mike, I found the same thing when I fit the...

Mike,

I found the same thing when I fit the floor in my slow build kit. I ended up removing the angle support from the side skin and making a new one from scratch. Now the floor fits without...
Forum: RV-8/8A 12-25-2011, 12:39 PM
Replies: 25
Views: 10,730
Posted By CMW
phapp, You don't want to use either of those...

phapp,

You don't want to use either of those rivets. As Rick pointed out above, the rivet to use is the 3214-4-4. The 3212 has a standard head size, while the 3214 has a reduced head size that is...
Forum: RV General Discussion/News 12-23-2011, 02:03 PM
Replies: 9
Views: 3,013
Posted By CMW
This is where a beam style or indicating style...

This is where a beam style or indicating style torque wrench is handy. You need to measure the friction drag torque due to the self locking features of a locknut or nutplate. This drag torque should...
Forum: RV-8/8A 12-05-2011, 01:01 AM
Replies: 25
Views: 10,730
Posted By CMW
CR3214-4-4, if you need some right away, I have a...

CR3214-4-4, if you need some right away, I have a bunch. PM me or email me at chriswelsh@sbcglobal.net.

-Chris
Forum: RV General Discussion/News 12-02-2011, 04:01 PM
Replies: 170
Views: 36,032
Posted By CMW
Dan, I would at least put a .1uF bypass cap right...

Dan, I would at least put a .1uF bypass cap right at the sensor. Hook it between the sensors V+ input and GND. It will ensure a clean voltage powering the sensor.

-Chris
Forum: RV General Discussion/News 11-30-2011, 11:39 AM
Replies: 170
Views: 36,032
Posted By CMW
I think FSO stands for Full Scale Output.

I think FSO stands for Full Scale Output.
Forum: RV General Discussion/News 11-29-2011, 08:24 PM
Replies: 26
Views: 17,631
Posted By CMW
As I understand it, lithium-ion is a generic term...

As I understand it, lithium-ion is a generic term for lithium chemistry batteries. So, a lithium iron phoshate battery is considerded a lithium ion battery. But, lithium iron phosphate batteries...
Forum: RV General Discussion/News 11-28-2011, 11:07 PM
Replies: 170
Views: 36,032
Posted By CMW
Digital manometer on Ebay

There are a bunch of new digital manometers on Ebay for $37. +/-2psi range. Here's a...
Forum: RV Building Tips/Techniques 11-03-2011, 09:34 PM
Replies: 21
Views: 13,066
Posted By CMW
Heater cartriges

Martin,

You might want to try Mcfarlane Aviation. I bought the 14V elements from them for a pitot I made. The 14V elements are the -356 , -357. I think the 28V elements are the -440, -441 part...
Forum: RV-8/8A 09-20-2011, 10:41 AM
Replies: 46
Views: 27,966
Posted By CMW
Thanks Dan, If I ever finish I will certainly...

Thanks Dan, If I ever finish I will certainly take some pressure measurements. That's what it's all about, education.

The inlet rings I machined on the mill you can see in the background of one of...
Forum: RV-8/8A 09-19-2011, 04:57 PM
Replies: 46
Views: 27,966
Posted By CMW
Thanks

Thanks for all the nice comments. I'll try and answer some of the questions:



I agree and I can't tell you how many time I went back and forth on what to do here, but I finally just decided to...
Forum: RV-8/8A 09-18-2011, 05:13 PM
Replies: 46
Views: 27,966
Posted By CMW
My attempt at a plenum

Here's a few shots of my plenum. This has taken forever. I hope it works...
Forum: RV-8/8A 06-21-2011, 01:04 PM
Replies: 8
Views: 2,498
Posted By CMW
One more thing

to keep in mind when torquing is to measure the friction drag torque due to the self locking features of a locknut. This drag torque should be added to the recommended torque for the fastener. For...
Forum: RV General Discussion/News 05-25-2011, 05:59 PM
Replies: 19
Views: 4,203
Posted By CMW
Under wing mounting

I agree the fuselage may be a simpler installation, but people run cabling for wing tip antennas. I'm just curious if there is a technical reason no one mounts the standard bent whip antenna to the...
Showing results 1 to 64 of 132

 
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