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Search: Posts Made By: MartinPred
Forum: Shared Tools/Gear 07-03-2021, 10:24 AM
Replies: 3
Views: 702
Posted By MartinPred
Iím local

When are you due? If youíre willing hop down to GPM I might be able to accommodate.

-Matt
Forum: RV-4 12-07-2020, 07:51 PM
Replies: 28
Views: 7,316
Posted By MartinPred
Itís all about AoA

If youíre skipping down the runway, itís probably because every time the mains touch the concrete, the tail is dropping slightly, which means the AoA is increasing, which means youíre back in the...
Forum: Traditional Aircraft Engines 11-25-2020, 08:33 PM
Replies: 17
Views: 2,881
Posted By MartinPred
All in the Timing

Yep. That was it. Turns out I had the impulse coupling timed to 25 degrees before TDC. Which means the left mag was actually 50 degrees before TDC (!). Itís amazing it ran at all!

Did an engine...
Forum: Traditional Aircraft Engines 11-25-2020, 05:12 AM
Replies: 17
Views: 2,881
Posted By MartinPred
Timing

Wow. Ok. I will give that a try.

-Matt
Forum: Traditional Aircraft Engines 11-24-2020, 05:49 PM
Replies: 17
Views: 2,881
Posted By MartinPred
Separate Mag Switches

I forgot to mention that I don't use a key switch. I have separate toggle switches for the left of right mags, with the starter on the stick. This allows me to keep good control of the stick and...
Forum: Traditional Aircraft Engines 11-24-2020, 01:30 PM
Replies: 17
Views: 2,881
Posted By MartinPred
No RPM Drop on Mag Check

Here's one for the hive mind.

Since I rebuilt my Lycoming O-360-A1D last year, with 2x freshly-rebuilt Bendix Mags, there's no drop in RPM, rise in EGT, or drop in CHT whenever I turn off the Left...
Forum: ADS-B 01-02-2020, 03:11 PM
Replies: 10
Views: 7,173
Posted By MartinPred
Form 337?

There's a note in the FAA ADS-B install technical paper about sending in a Form 337 after the logbook entry is made. ...
Forum: Traditional Aircraft Engines 10-14-2019, 10:03 AM
Replies: 9
Views: 2,021
Posted By MartinPred
Many Ideas

I'm going to try the air dam and some of the other ideas posted. I'll take some more picture this weekend.

I was thinking that I managed to glaze #3, but no one has suggested that. So maybe it's...
Forum: Traditional Aircraft Engines 10-08-2019, 04:24 PM
Replies: 9
Views: 2,021
Posted By MartinPred
Engine Break-in?High #3 CHT

Greetings,

I could use some input. I recently rebuilt my Lycoming O-360-A1D (MA-4-5 carb) on my RV-4. About 15 hours into the break-in, all my CHTs have come down nicely except #3 (back right). ...
Forum: Traditional Aircraft Engines 06-17-2019, 04:05 PM
Replies: 12
Views: 3,172
Posted By MartinPred
Update: Missing Plug Found

After some hunting around with the borescope through both mag holes, I determined that I had indeed missed one of the three plugs.

Here's the left one that I installed during the...
Forum: Traditional Aircraft Engines 06-10-2019, 05:05 PM
Replies: 12
Views: 3,172
Posted By MartinPred
Same Video

I watched that very video when I was putting everything together. So maybe I did. I definitely have the three external plugs installed.

I?ll pull the mags this weekend and check the internal...
Forum: Traditional Aircraft Engines 06-10-2019, 12:04 PM
Replies: 12
Views: 3,172
Posted By MartinPred
I'll take a look

The engine has only run a couple of minutes and was well-oiled during rebuild. I checked those bearings and journals during assembly. The Lycoming manauls goes into great detail on the clearances,...
Forum: Traditional Aircraft Engines 06-10-2019, 09:33 AM
Replies: 12
Views: 3,172
Posted By MartinPred
Lycoming Galley Plugs

After a two-year rebuild, the good news my Lycoming O-360-A1D is back to together on my RV-4, and started up just fine with no oil leaks. My tappet bodies had corroded, damaging the cam, and forcing...
Forum: Traditional Aircraft Engines 06-11-2017, 07:35 AM
Replies: 47
Views: 20,249
Posted By MartinPred
Stock

I bought this engine as a zero-time overhaul from Ly-Con. I presume they're stock, but I can't really say.

Can anyone recommend a good shop that can overhaul a cam? This engine only has 800 hours...
Forum: Traditional Aircraft Engines 06-10-2017, 08:58 AM
Replies: 47
Views: 20,249
Posted By MartinPred
At Least One Culprit Identified

I finally got an afternoon free to pull a cylinder--the #2. The second cam lobe looked pristine. But here's what the forward-most lobe looks...
Forum: Traditional Aircraft Engines 05-20-2017, 10:28 AM
Replies: 47
Views: 20,249
Posted By MartinPred
Sharp Pointy Particles

Here's a better photo of the particles on the magnetic drain plug.

http://bluecircle.org/images/MetalonPlug_19May17_02.jpg

I'm planning to pull the #2 cylinder when I get a free weekend. That...
Forum: Traditional Aircraft Engines 05-14-2017, 07:58 PM
Replies: 47
Views: 20,249
Posted By MartinPred
Power?

Bill,

If the lifters were out of range, would that affect performance? The engine has been running like a champ.

I'll see if I can get better pictures of the particles and maybe get them analyzed....
Forum: Traditional Aircraft Engines 05-14-2017, 09:20 AM
Replies: 47
Views: 20,249
Posted By MartinPred
Hard to Tell

Since last year I installed the magnetic drain plug and ran through a couple oil changes. At first I thought I was within the Lycoming limit of 20-40 hairlike ferrous particles of 1/16" or smaller. ...
Forum: RV Photo/Video URLs 08-30-2016, 08:37 AM
Replies: 13
Views: 4,890
Posted By MartinPred
Garmin Audio

Garmin sells a cable with one end that plugs into your intercom and another that plugs into the mini-USB on the back of the intercom.

It was a pretty sporty arrival. I had two guys turn into the...
Forum: RV Photo/Video URLs 08-29-2016, 11:53 AM
Replies: 13
Views: 4,890
Posted By MartinPred
Gartin VIRB

I use the Garmin VIRB with the integrated GPS and WiFi control. The VIRB video editing software comes preloaded with a bunch of different overlays (it's get the data from the GPX file that the...
Forum: RV Photo/Video URLs 08-27-2016, 07:55 AM
Replies: 13
Views: 4,890
Posted By MartinPred
Oshkosh 2016 VFR Approach Video

Here's the full cockpit video from my OSH arrival--from Ripon to landing on the Green Dot of Runway 27.

https://youtu.be/nglERZcV-24

-Matt
N402BD
Forum: Midwest 07-19-2016, 08:57 AM
Replies: 1
Views: 1,184
Posted By MartinPred
Needed: Someplace to park an RV-4 in the Chicago Area

I'm retiring from the Air Force and about to be homeless for a couple months while my wife and I travel and see friends, etc. I need someplace to park my RV-4 in the Chicago area from August 3rd...
Forum: Traditional Aircraft Engines 03-02-2016, 10:07 PM
Replies: 47
Views: 20,249
Posted By MartinPred
Worth a Shot

Just sent you an order via paypal.

-Matt
Forum: Traditional Aircraft Engines 03-02-2016, 09:20 AM
Replies: 47
Views: 20,249
Posted By MartinPred
Straight Breather

Also, straight breather tube. Normally I don't see any moisture in the little bit of oil that drips out while the plane is sitting in the hangar. But after the last cold snap, I did see some. ...
Forum: Traditional Aircraft Engines 03-02-2016, 09:18 AM
Replies: 47
Views: 20,249
Posted By MartinPred
Some Sitting

Bill,

The airplane did spend some time as the hangar queen while I was overseas in 2012 and again in 2014. Plus I missed a sample on an oil change in 2014. When the plane was sitting (maybe two...
Forum: Traditional Aircraft Engines 03-01-2016, 10:47 PM
Replies: 47
Views: 20,249
Posted By MartinPred
Great Tip

Of course. A quick google search reveals that Mike Busch has written a couple of articles on the subject. And Lycoming has issued some guidance in the form of Service Instruction 1492C.

Turns out...
Forum: Traditional Aircraft Engines 03-01-2016, 10:13 PM
Replies: 47
Views: 20,249
Posted By MartinPred
Tiny Cracks

Greg,

In the picture, the cracks on the mount are the things that look like scratches. Very fine, but definitely cracks in the paint. Just not sure if the tube underneath is also cracked. Seems...
Forum: Traditional Aircraft Engines 03-01-2016, 09:41 PM
Replies: 47
Views: 20,249
Posted By MartinPred
Making a Little Bit of Metal

So over the past two years, the iron in my oil samples has been slowly creeping up. But the filter was always clean so I just kept an eye on it.

On my last oil change however, I was able to tease...
Forum: RV-4 10-31-2015, 02:07 PM
Replies: 6
Views: 2,358
Posted By MartinPred
Good Spot for it

I have both the Status 2 mount and a GPS there and they both work great.

The only issue with the Stratus is that if you activate the attitude indicator on Foreflight while you're still on the...
Forum: Glass Cockpit 07-28-2015, 09:45 AM
Replies: 33
Views: 11,526
Posted By MartinPred
Two iPads

I fly with two iPad minis: a first-gen mounted to the panel via a RAM mount, and a mini retina on my kneeboard. Even in the -4, the iPads are rarely in direct sunlight. I find the mini on the panel...
Forum: Electrical Systems 07-21-2015, 02:56 PM
Replies: 43
Views: 15,276
Posted By MartinPred
Stick Grip Switch and Enable Circuit

I have my starter switch on the pinky button of the stick grip, which lets me keep the stick back when starting. But I put an enable switch in the loop on the panel. The switch has to be up to...
Forum: RV General Discussion/News 06-12-2015, 10:02 AM
Replies: 3
Views: 1,184
Posted By MartinPred
From Any App

Sure thing.

I forgot to add that you can do that from inside any app. So if a file is too big to e-mail, you can upload to Google Drive, or Dropbox, or what have you.

-Matt
N402BD
Forum: RV General Discussion/News 06-11-2015, 02:43 PM
Replies: 3
Views: 1,184
Posted By MartinPred
E-mail it to yourself

E-mail it to yourself. Open the e-mail with the attachment on your iPad. Tap on the attachment to open it in Mail, then tap on the icon at the top right that looks like a box with an up arrow. The...
Forum: Traditional Aircraft Engines 08-21-2014, 01:51 PM
Replies: 10
Views: 2,317
Posted By MartinPred
I'll check it out

I usually run with a little bit of carb heat. I'll play around with it next time I go flying and see if that makes a difference.

I've been thinking it might be a leaky exhaust valve. I'm almost...
Forum: Traditional Aircraft Engines 08-21-2014, 11:24 AM
Replies: 10
Views: 2,317
Posted By MartinPred
Huh.

I see. Nope. Nothing like that.

Would you need something like that if you're CHTs were too low?

Thanks,

-Matt
402BD
Forum: Traditional Aircraft Engines 08-21-2014, 11:03 AM
Replies: 10
Views: 2,317
Posted By MartinPred
Standard RV-4 Cowling

Mike,

It's a pretty standard RV-4 cowling. There's a slight bump where the lower cowling meeting the baffling. But how would that affect EGTs?

-Matt
402BD
Forum: Traditional Aircraft Engines 08-21-2014, 10:55 AM
Replies: 10
Views: 2,317
Posted By MartinPred
Consistently Low #1 and 2 EGTs on an RV-4 O-360

My #1 and 2 EGTs consitently run 80-150 degrees cooler than the other two cyclinders. Here's the data from a recent flight:

http://www.bluecircle.org/N402BD-fltdata.jpg

I'm running a Lycoming...
Forum: Electrical Systems 03-24-2014, 05:21 PM
Replies: 20
Views: 8,215
Posted By MartinPred
Bad Regulator

I've gone through a few ND55s over the years. The first one lasted 600 hours. The second one only 200 (was still under warrenty when I replaced it), and the rest have been everywhere in between. ...
Forum: RV General Discussion/News 03-21-2014, 03:12 PM
Replies: 17
Views: 3,771
Posted By MartinPred
Angry Don't Be Like Me

I was stationed overseas for a year with my RV-4 in the care of a friend. I never recieved my impending expiration notice. When I got back stateside, I recieved a new assignment and moved to Rapid...
Forum: Safety 01-29-2014, 09:06 PM
Replies: 34
Views: 6,527
Posted By MartinPred
Not So Sure

I don't know. The author of the article argues that because commercial flying has become so low-risk, the FAA should stop trying to keep lowering the risk. But that's a paradoxical argument.

The...
Forum: GPS 09-08-2013, 11:14 AM
Replies: 7
Views: 4,633
Posted By MartinPred
Ipad mini on the panel

I fly with two iPads: one on the panel and one on a kneeboard. I use the panel mount for the moving map ang general SA and the kneeboard for airport info and reference. ...
Forum: RV General Discussion/News 08-28-2013, 11:39 PM
Replies: 12
Views: 3,566
Posted By MartinPred
Zulu 1 is Fantastic

I've been flying with a Zulu 1 in my RV-4 now for about three years and 400 hours. And if you try to take it from me, you'll have a fight on your hands.

Seriously, It's the finest headset I've...
Forum: Safety 08-07-2013, 12:39 PM
Replies: 33
Views: 6,797
Posted By MartinPred
As Available

Also remember that VFR flight following is a courtesy conducted on a space-available basis. If the controllers are too busy with IFR traffic, they don't have to provide the service.

The only way to...
Forum: Electrical Systems 07-14-2013, 08:11 PM
Replies: 9
Views: 2,470
Posted By MartinPred
It was the alternator.

I called the Odyssey tech support line and spoke to one of their engineers. Obviously there's no way the battery could produce 22 volts on its own. But if it's exposed to high voltage, the battery...
Forum: Electrical Systems 07-12-2013, 01:57 PM
Replies: 9
Views: 2,470
Posted By MartinPred
ND 55

It's the ND 55. So I suppose I could have a bad internal regulator combined with a bad lead. I'll check it out.

Thanks,

-Matt
402BD
Forum: Electrical Systems 07-12-2013, 01:04 PM
Replies: 9
Views: 2,470
Posted By MartinPred
Runaway Battery Voltage

Anyone ever seen this? I was flying along today and all of a sudden my bus voltage shot up to 22 volts on my 12 volt system. I immediately killed the alternator, but no change in voltage. I loaded...
Forum: RV General Discussion/News 06-04-2013, 11:02 AM
Replies: 31
Views: 13,323
Posted By MartinPred
Just added one to my -4

A few years ago I installed a home-made EFIS in my -4 (Windows 486 computer with 7" touchscreen running Mountainview and Falconview--a military mapping program). But I finally concluded that...
Forum: Mid-Atlantic 02-24-2013, 01:21 AM
Replies: 3
Views: 1,634
Posted By MartinPred
I'll call 'em

Brian,

Thanks for the gouge. I'll give 'em a call.

-Matt
402BD
Forum: Mid-Atlantic 02-21-2013, 12:48 PM
Replies: 3
Views: 1,634
Posted By MartinPred
Need a Place to Park a -4 in the Baltimore Area

RVers,

I'm currently stationed overseas but my -4 is in New Mexico with a friend. I've got some leave in the US next month and then I'll be back for some training in April--both visits to the East...
Forum: RV Ongoing Maintenance Issues 11-24-2012, 04:47 AM
Replies: 5
Views: 1,630
Posted By MartinPred
Battery

I was going to say--sounds like your battery is not fully charged. I had this problem once when a loose ground resulted in the battery being unable to charge which the engine running.

Try charging...
Forum: RV General Discussion/News 10-26-2012, 09:05 AM
Replies: 81
Views: 33,610
Posted By MartinPred
Here's what mine looks like

Here's what my iPad 2 looks like in my RV-4 in direct sunlight:

http://www.bluecircle.org/iPadRV4Sunlight.jpg

I find it to be quite usable, and I haven't had any temperature issues.

Of course I...
Forum: Painting your RV 10-10-2012, 04:04 PM
Replies: 18
Views: 5,287
Posted By MartinPred
Outsouce It

I say go for it.

For those with no artistic skill, RT Foster in Oklahoma (rtfosterart.com) wil airbrush your design onto a piece of sticky vinyl which you can then adhere to your aircraft. When...
Forum: RV General Discussion/News 10-08-2012, 06:54 PM
Replies: 45
Views: 8,778
Posted By MartinPred
Uncle Sam Wants You

This is easy...

Join the Air Force!

See the world. Fly jets. Fight evil. Make good money. Women will love you and men will want to be you.

What else could you possibly want?!

-Matt
402BD
Forum: RV General Discussion/News 02-17-2012, 02:33 PM
Replies: 27
Views: 11,609
Posted By MartinPred
Corrosion

Makes sense. The photos on the web site however show bare carbon installed on the aircraft. I really like the look so it'd be a shame to cover it up with paint.

Maybe a clear coat?

-Matt
402BD
Forum: RV General Discussion/News 02-17-2012, 01:30 PM
Replies: 27
Views: 11,609
Posted By MartinPred
Corrosion?

Hmm. Is there some sort of coating on the carbon fiber that prevents it from reacting to aluminum?

From what I recall of my high school chemistry, carbon and aluminum will for a natural anode...
Forum: Glass Cockpit 02-01-2012, 07:26 PM
Replies: 11
Views: 4,344
Posted By MartinPred
You said it

I've been watching the same item on eBay. I'm still using the old Gen 1 EFIS Lite in my RV-4 and it's still going strong. I was hoping this one would go cheap so I could pick it up as a...
Forum: Traditional Aircraft Engines 01-09-2012, 04:32 PM
Replies: 15
Views: 14,511
Posted By MartinPred
Left Side

For the O-360 (at least on mine), the Impulse Coupling is on the left side. You don't want the right mag to fire during start to prevent kick-back that will eventually tear up the starter.

You can...
Forum: West (and Southwest) 11-09-2011, 12:03 PM
Replies: 5
Views: 1,383
Posted By MartinPred
I'm at ALM

Larco,

I'm a CFI and Air Force pilot over in Alamogordo. I might be coaxed to fly my RV-4 over to CGZ for maybe gas plus lunch. We can then train in your plane.

I'm free next weekend and we can...
Forum: RV General Discussion/News 09-01-2011, 05:06 PM
Replies: 48
Views: 12,069
Posted By MartinPred
It's probably Legit

I land at Offutt and Holloman all the time. Any Air Force member or retiree can apply for a civil landing permit to land at Air Force bases. Probably someone there TDY.

-Matt
402BD
Forum: RV General Discussion/News 08-03-2011, 06:19 PM
Replies: 103
Views: 20,000
Posted By MartinPred
A Nice Cup of Joe

I continue to be consternated by the difficulty of finding a decent cup of coffee. There's like two places on the entire site.

But I guess if that's my biggest complaint, things aren't so...
Forum: Electrical Systems 05-28-2011, 08:47 AM
Replies: 15
Views: 4,491
Posted By MartinPred
Success!

Well, after cleaning every connection, re-installing the main ground wire to the engine mount (which was loose), and tracing every other wire in the plane, I was still getting a one volt drop every...
Forum: Electrical Systems 05-17-2011, 11:14 PM
Replies: 15
Views: 4,491
Posted By MartinPred
Not the loads

So no change with all loads isolated. Bypassing the battery relay got me about .5 volts back. Didn't think to isolate the battery but I'd be surpassed if that's it. I replaced it about two years...
Forum: Electrical Systems 05-15-2011, 09:44 AM
Replies: 15
Views: 4,491
Posted By MartinPred
Getting Better

Well, after chasing every line and isolating every connection, I found no obvious culprit. So I cleaned every connection and that brought the voltage drop down to about 1 volt.

I'm going to clean...
Forum: Electrical Systems 05-11-2011, 09:48 PM
Replies: 15
Views: 4,491
Posted By MartinPred
Will check for a bad ground

Thanks for all the advice. I can tell you that it's definitely not the alternator, belt, bracket, or engine mount. All have only about 300 hours on them and are in pristine condition.

Plus I get...
Showing results 1 to 64 of 138

 
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