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Search: Posts Made By: lr172
Forum: Glass Cockpit Yesterday, 10:36 PM
Replies: 40
Views: 1,819
Posted By lr172
Thanks for clarifying and helping us better...

Thanks for clarifying and helping us better understand what is happening inside the black box.

Larry
Forum: RV Ongoing Maintenance Issues Yesterday, 03:10 PM
Replies: 8
Views: 402
Posted By lr172
Look like the pant hit something that forced it...

Look like the pant hit something that forced it top side outward and the mount bent and made contact with the rotor. Could also have hit something head on that was on the inboard side of the pant...
Forum: VAF Classifieds (posts in here deleted after 30 days) Yesterday, 03:06 PM
Replies: 10
Views: 579
Posted By lr172
Let us know if you find a seller. Several should...

Let us know if you find a seller. Several should follow behind you.

Larry
Forum: Glass Cockpit Yesterday, 02:24 PM
Replies: 40
Views: 1,819
Posted By lr172
Why would a wing drop be read as a climb. The...

Why would a wing drop be read as a climb. The fact that the wingtip fell relative to gravity has no bearing on the pitch axis. It may mess with the units measurement of lateral G forces, but no...
Forum: Glass Cockpit Yesterday, 01:33 PM
Replies: 40
Views: 1,819
Posted By lr172
The AHRS will have three discrete sensors for...

The AHRS will have three discrete sensors for each axis. Not sure how the roll axis could describe and arc, as an arc implies two axis'. The roll sensor will simply read degrees from level.

Does...
Forum: RV-10 Yesterday, 01:25 PM
Replies: 7
Views: 294
Posted By lr172
I believe you are correct, I was thinking of...

I believe you are correct, I was thinking of something different. Alternator usually have a press fit on the shaft.
Forum: Glass Cockpit Yesterday, 12:10 PM
Replies: 40
Views: 1,819
Posted By lr172
True acceleration may be different, but all...

True acceleration may be different, but all points on the axis get to the same degree of rotation at the same time. Just look at your propeller. Engine spinning at 2500 RPM. You have to assume the...
Forum: RV-10 Yesterday, 11:32 AM
Replies: 7
Views: 294
Posted By lr172
Use shims or washers in the lower alt mount to...

Use shims or washers in the lower alt mount to bring it parallel. Misalignment across the parallel axis will create excess side wear on the belt. It also puts more stress on thrust portion of the...
Forum: Glass Cockpit Yesterday, 11:22 AM
Replies: 40
Views: 1,819
Posted By lr172
You'll have to explain this one for me. An...

You'll have to explain this one for me. An experiment to prove a counter theory to yours. Take a 2x4 and drill a hole in the middle and bolt to wall. Then set it at 5* from level. Take various...
Forum: Glass Cockpit Yesterday, 11:11 AM
Replies: 40
Views: 1,819
Posted By lr172
GMU 22 goes to AHRS and then data passed to CAN...

GMU 22 goes to AHRS and then data passed to CAN bus. G5 can grab the heading data off the CAN bus. However, if you power down the AHRS, the heading goes with it because the AHRS is it's bridge to...
Forum: Glass Cockpit Yesterday, 09:28 AM
Replies: 8
Views: 509
Posted By lr172
Nor is a radio stack. It is a component attached...

Nor is a radio stack. It is a component attached to the structure, just like a battery. I suspect the panel itself is adding rigidity to the upper skin and would consider it structural. However,...
Forum: RV General Discussion/News Yesterday, 09:20 AM
Replies: 19
Views: 1,391
Posted By lr172
I do, but more so when VFR than IFR. I have...

I do, but more so when VFR than IFR. I have never understood why. It seems that I still have some muscle memory from the old days, where I give a little pull when turning. and apparenly the RV...
Forum: RV General Discussion/News Yesterday, 09:05 AM
Replies: 19
Views: 1,391
Posted By lr172
If you think the 9 is sensitive in pitch, you...

If you think the 9 is sensitive in pitch, you should try the 6:) I got my rating in the 6 and found the learning curve to be a bit steep in regards to holding altitude and pitch control in general. ...
Forum: Glass Cockpit Yesterday, 08:54 AM
Replies: 40
Views: 1,819
Posted By lr172
I suspect changing to an GMU11 would allow the G5...

I suspect changing to an GMU11 would allow the G5 to use heading data, as well as the gsu25. Also, do you really need it in an emergency/failure? The G3X AP with G5 AHRS should happily fly a track....
Forum: Electrical Systems Yesterday, 08:49 AM
Replies: 6
Views: 285
Posted By lr172
I remember it being an amp. Should be easy to...

I remember it being an amp. Should be easy to verify with some searching.
Forum: RV General Discussion/News 02-14-2019, 02:57 PM
Replies: 31
Views: 1,842
Posted By lr172
Chassis grounding is not evil. I can't think of...

Chassis grounding is not evil. I can't think of a single auto that doesn't use the engine block as a ground for the starter and most then have a ground strap to the frame/chassis and from the...
Forum: Alternative Engines 02-14-2019, 02:23 PM
Replies: 90
Views: 8,003
Posted By lr172
So, it appears the coolant pumps aren't...

So, it appears the coolant pumps aren't redundant, so I would assume there is coolant temp sensor in the block somewhere to indicate proper operation. What is the procedure if that primary pump...
Forum: Alternative Engines 02-14-2019, 01:59 PM
Replies: 90
Views: 8,003
Posted By lr172
Not to question the experts here, but one...

Not to question the experts here, but one immediate concern would be a leak in the coolant system eliminating pressure for the injectors. A cracked block or cracked exchanger/radiator could...
Forum: Glass Cockpit 02-14-2019, 12:51 PM
Replies: 36
Views: 2,468
Posted By lr172
While I agree with the ILS never going away, I...

While I agree with the ILS never going away, I believe the majority of VOR approaches will be gone in the near future and the remaining VORs will exist mostly as an enroute back up for GPS. In my...
Forum: RV-10 02-14-2019, 12:32 PM
Replies: 28
Views: 1,285
Posted By lr172
Thanks. That is encouraging. With the 6, I...

Thanks. That is encouraging. With the 6, I found that after about 25-30 I had achieved all of my testing and the balance was mostly flying around in circles. While I was still learning the plane,...
Forum: Traditional Aircraft Engines 02-14-2019, 10:43 AM
Replies: 4
Views: 752
Posted By lr172
I suspect that dealing with corrossion in the...

I suspect that dealing with corrossion in the fillets is harder to deal with. It is likely that they can deal with light corrossion there. However, I would still spend the money in shipping to have...
Forum: RV-10 02-14-2019, 10:27 AM
Replies: 28
Views: 1,285
Posted By lr172
I understood that. However, the hartzell is only...

I understood that. However, the hartzell is only certified with the D4A5. The C4B5 is functionally identical to the D4A5, however it is not specifically listed on the hartzell cert docs. I was...
Forum: RV-10 02-14-2019, 09:27 AM
Replies: 28
Views: 1,285
Posted By lr172
Are most of you guys getting 25 hours if you have...

Are most of you guys getting 25 hours if you have the C4B5 and the Hartzell?

Larry
Forum: RV General Discussion/News 02-14-2019, 09:10 AM
Replies: 31
Views: 1,842
Posted By lr172
I think that one of the morals of charlie's story...

I think that one of the morals of charlie's story is that you can overcome the need with proper maintenance. You have can have three ground cables, but if they are all loose on one end, you'll still...
Forum: RV General Discussion/News 02-13-2019, 03:33 PM
Replies: 24
Views: 2,062
Posted By lr172
That is correct. However, the FARs now allow you...

That is correct. However, the FARs now allow you to fly, as PIC, with basic med instead of a medical. It's possible this loophole/problem was overlooked by the FAA, but I think it's a "finger in...
Forum: RV General Discussion/News 02-13-2019, 03:29 PM
Replies: 24
Views: 2,062
Posted By lr172
+1 If you have a problem, there is no way out. ...

+1

If you have a problem, there is no way out. Claim the co-pilot is PIC and the FAA is happy. However, if that co-pilot doesn't meet the open pilot provisions on your policy, the insurance...
Forum: RV General Discussion/News 02-13-2019, 12:04 PM
Replies: 33
Views: 3,139
Posted By lr172
I'll give you my experience. I built a 6A a few...

I'll give you my experience. I built a 6A a few years ago and now building a 10.

I am retired now and bought the 10 kit to keep me busy. The kit had the emp done and was otherwise at the QB stage....
Forum: Electrical Systems 02-13-2019, 09:46 AM
Replies: 4
Views: 346
Posted By lr172
Spliced connections are very common. How they...

Spliced connections are very common. How they are spliced can vary from a terminal block to a simple solder connection. I can't imagine a plane where every power consumer gets a dedicated CB. The...
Forum: RV-10 02-13-2019, 09:36 AM
Replies: 28
Views: 1,285
Posted By lr172
A belated congrats. Lookking forward to hearing...

A belated congrats. Lookking forward to hearing how your phase I goes.

Larry
Forum: Electrical Systems 02-13-2019, 01:00 AM
Replies: 2
Views: 427
Posted By lr172
I built bob nuckles crow bar overvoltage...

I built bob nuckles crow bar overvoltage protection device for about $5 in parts. That covers the whole electrical system. A much cleaner and broader approach. It fit on a 1.5" X 1.5" board.

Larry
Forum: VAF Classifieds (posts in here deleted after 30 days) 02-13-2019, 12:33 AM
Replies: 11
Views: 818
Posted By lr172
I am confused. I just bought an Artex ELT from...

I am confused. I just bought an Artex ELT from spruce and they didn't ask for my n number or anything else, beyond which country it was to be used in. The kit included a registration form for me to...
Forum: ADS-B 02-13-2019, 12:17 AM
Replies: 68
Views: 2,792
Posted By lr172
You would be shocked at what activity the Govt is...

You would be shocked at what activity the Govt is tracking and has at their fingertips. A few years after 9/11 I showed up at ORD and had left my wallet at home with my drivers license in it. A...
Forum: RV General Discussion/News 02-12-2019, 11:47 AM
Replies: 8
Views: 560
Posted By lr172
Most sealed lead acid batteries, like the...

Most sealed lead acid batteries, like the odyssey, have a very low self-discharge rate relative to standard flooded lead acid batteries. Most SLA batteries (i.e. AGM technology) can go 6-12 months...
Forum: RV General Discussion/News 02-11-2019, 10:32 PM
Replies: 18
Views: 1,213
Posted By lr172
This is why I don't use the AP. The only time I...

This is why I don't use the AP. The only time I got scared on an approach was when I tried letting the AP fly it. I thought the same as the OP. I caught myself looking away a bit longer than...
Forum: RV General Discussion/News 02-11-2019, 10:22 PM
Replies: 18
Views: 1,213
Posted By lr172
Until they develop an AP that has control of the...

Until they develop an AP that has control of the throttle, it is wishful thinking. Some pilot intervention will be required to maintain a desired speed. If youupgrade to an airbus, then you can...
Forum: Temp / Test / Misc. (posts deleted after 2 weeks) 02-11-2019, 10:07 PM
Replies: 26
Views: 987
Posted By lr172
All relays, especially those with relatively...

All relays, especially those with relatively large current draws, should have diode protection for the switches they are connected to. The starter relay is the same as the master contactor, except...
Forum: Temp / Test / Misc. (posts deleted after 2 weeks) 02-11-2019, 05:29 PM
Replies: 26
Views: 987
Posted By lr172
No, I meant the big wire. You could fuse that...

No, I meant the big wire. You could fuse that wire with a 5 amp fuse. The contactor only draws about 1 amp. However, it doesn't produce much of a risk, as the windings in the contactor act like a...
Forum: Temp / Test / Misc. (posts deleted after 2 weeks) 02-11-2019, 05:28 PM
Replies: 26
Views: 987
Posted By lr172
That means the diode is installed backwards/wrong...

That means the diode is installed backwards/wrong polarity.

Larry
Forum: Temp / Test / Misc. (posts deleted after 2 weeks) 02-11-2019, 04:56 PM
Replies: 26
Views: 987
Posted By lr172
Grounding a live wire is not really the fault of...

Grounding a live wire is not really the fault of the circuit. Not sure why the diode blew. I guess it really depends which wire was shorted to ground. The power may have cycled back through the...
Forum: Traditional Aircraft Engines 02-11-2019, 01:50 PM
Replies: 33
Views: 2,688
Posted By lr172
AD oil is important for holding debris in...

AD oil is important for holding debris in suspension. Straight mineral oil will hold MUCH less debris and once saturated, all additional debris will settle out as sludge. Lyc's put a LOT of debris...
Forum: RV General Discussion/News 02-11-2019, 12:10 PM
Replies: 18
Views: 1,213
Posted By lr172
I concur, but caution the need for practice. It...

I concur, but caution the need for practice. It is very easy to drop speed and set up when breaking out at 500+' but you don't want to learn how to do it on the gauges when breaking out at minimums...
Forum: RV General Discussion/News 02-11-2019, 12:06 PM
Replies: 18
Views: 1,213
Posted By lr172
I concur, but caution the need for practice. It...

I concur, but caution the need for practice. It is very easy to drop speed and set up when breaking out at 500+' but you don't want to learn how to do it on the gauges when breaking out at minimums....
Forum: Traditional Aircraft Engines 02-11-2019, 11:56 AM
Replies: 33
Views: 2,688
Posted By lr172
Don't recommend 50 weight oil (aviation 100) at...

Don't recommend 50 weight oil (aviation 100) at 30*. Your lycoming operating manual will give min/max temp ranges for different weight oils, but I would never use 50 weight oil at those lower temps....
Forum: RV-14 02-10-2019, 10:20 PM
Replies: 27
Views: 5,860
Posted By lr172
I had good luck starting all holes with a...

I had good luck starting all holes with a standard #40 drill bit. Light pressure to avoid breaking through and chipping as you are seeing. You want to go slow so that you are generating a lot of...
Forum: RV-10 02-10-2019, 03:50 PM
Replies: 16
Views: 900
Posted By lr172
Interesting. I just got my left door window in...

Interesting. I just got my left door window in today and I would say my 535 unit is about perfect. Nice and strong but not overly so. I wouldn't want anymore power. I have a homegrown...
Forum: RV General Discussion/News 02-10-2019, 03:45 PM
Replies: 1
Views: 249
Posted By lr172
Pretty easy to make from 1/4" aluminum. I did...

Pretty easy to make from 1/4" aluminum. I did that for my 6. Couldn't bring myself to spend $50 for something I could make in an hour. You'll get cozy with the belt sander:D

Larry
Forum: Fiberglass 02-10-2019, 02:17 PM
Replies: 6
Views: 396
Posted By lr172
Take measurement of the gap. When you clamp some...

Take measurement of the gap. When you clamp some metal onto the outer edge of the cowl to form your outside edge, you can make some marks based upon your measurement and use this for trimming. You...
Forum: Fiberglass 02-10-2019, 02:13 PM
Replies: 6
Views: 396
Posted By lr172
No need to remove the hinge from the bottom. ...

No need to remove the hinge from the bottom. Perform your work on the top with its hinge removed. Get the new line/edge on the top piece to give a good fit. Then mount the upper hinge, as you did...
Forum: Fiberglass 02-10-2019, 12:48 PM
Replies: 6
Views: 396
Posted By lr172
+1 I would do this on the top cowl. If you do...

+1

I would do this on the top cowl. If you do this on the bottom, your new rivets will end up close to the transition line of the scarf joint where it will not have much fabric reinforcement.

Larry
Forum: Glass Cockpit 02-10-2019, 10:28 AM
Replies: 20
Views: 7,607
Posted By lr172
+1 I have always chuckled at this one. What...

+1

I have always chuckled at this one. What does a 100* minimum oil temp have to do with the ability to run an engine at 2700 RPM without damage or wear? Minimum CHT, I get. Minimum barrell temp,...
Forum: RV-4 02-10-2019, 12:13 AM
Replies: 20
Views: 1,351
Posted By lr172
I didn't fully read your thread before posting...

I didn't fully read your thread before posting that. Upon re-reading, I realized that you had only cleco'ed the fairing on (I originally assumed it was rivetted on) and were using a barrier to...
Forum: Glass Cockpit 02-09-2019, 10:17 AM
Replies: 13
Views: 630
Posted By lr172
I have AOA on my HXr setup and it works well. ...

I have AOA on my HXr setup and it works well. You will need a Pitot tube with AOA port on it (dynon or Garmin), as well as a new AHRS that has the AOA port in it.

I have an AFS AOA kit that I was...
Forum: RV-10 02-08-2019, 10:39 AM
Replies: 16
Views: 1,470
Posted By lr172
This would be my primary area of concern if I was...

This would be my primary area of concern if I was chasing your issue. I was dealing with boiling fuel in my injector lines (a unique installation problem) on my 6 and undertook several steps in an...
Forum: RV-10 02-08-2019, 09:45 AM
Replies: 16
Views: 900
Posted By lr172
Thanks. Looks like the 600 units may be in my...

Thanks. Looks like the 600 units may be in my future. I am a couple weeks from gluing the windows on and without them thought the 535 was too much.

Larry
Forum: RV-10 02-08-2019, 09:42 AM
Replies: 16
Views: 900
Posted By lr172
The part we use,A1A1F50-100-287-xxx, for our...

The part we use,A1A1F50-100-287-xxx, for our doors has a price of $0 with a note advising you to call to order. I only paid about $60 by ordering via phone, which is in line with what others posted...
Forum: RV-10 02-07-2019, 11:23 PM
Replies: 16
Views: 900
Posted By lr172
You have to call them. Their number is on their...

You have to call them. Their number is on their site. Easy to deal with, albeit analog.

Larry
Forum: RV-14 02-07-2019, 02:59 PM
Replies: 32
Views: 4,134
Posted By lr172
Yes, you can run too cool. However, I have no...

Yes, you can run too cool. However, I have no idea what is too cool on a lyc. There is a reason your water cooled engine has a thermostat. If your logic applied, a thermostat would not be...
Forum: RV-10 02-07-2019, 09:32 AM
Replies: 13
Views: 1,057
Posted By lr172
Orientation, at least for the bainsbach struts,...

Orientation, at least for the bainsbach struts, is important for dampening at the end of the extension cycle. The strut is designed to only dampen the end of the extension cycle if it is oriented...
Forum: RV-6/6A 02-07-2019, 12:09 AM
Replies: 11
Views: 1,584
Posted By lr172
+1 Never had an issue getting good airflow in my...

+1

Never had an issue getting good airflow in my tipper if you prop it open like this.

Also, don't be too quick to squeeze the aileron edges. I suggests squeezing only to achieve flat surfaces...
Forum: RV General Discussion/News 02-06-2019, 11:30 PM
Replies: 12
Views: 1,055
Posted By lr172
You want the 3M clear paint protection tape. The...

You want the 3M clear paint protection tape. The stuff they use on cars in rock chip areas. It is relatively soft, doesn't wear and won't yellow and dry up like the stuff in the kit. It is better...
Forum: RV General Discussion/News 02-06-2019, 11:25 PM
Replies: 7
Views: 1,096
Posted By lr172
I am curious what the recommendation is for the...

I am curious what the recommendation is for the steel bushings on the front gear leg.

Larry
Forum: RV-10 02-06-2019, 10:33 PM
Replies: 0
Views: 459
Posted By lr172
New approach for flat Dash Paint

I, like most, wanted a flat black finish on my dash. On the 6, I used rattle can flat black. The problem with cheap flat paint is that any rubbing burnishes the finish and starts to add gloss,...
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