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Search: Posts Made By: DRMA
Forum: RV General Discussion/News 10-09-2021, 06:39 PM
Replies: 14
Views: 776
Posted By DRMA
Get the right tools, both a proper coax crimper...

Get the right tools, both a proper coax crimper and a coax stripper. Take your time, follow the instructions for the type of connector (BNC or TNC), and be sure you don't get a loose strand from the...
Forum: RV-10 09-20-2021, 02:23 PM
Replies: 17
Views: 1,064
Posted By DRMA
I installed a Ray Allan POS 12 position sensor on...

I installed a Ray Allan POS 12 position sensor on the outside of my RV-10 fuselage where it is activated by the flap activation arm there. It works great as the position input to my G3X system, and...
Forum: Texas (South) 09-01-2021, 06:45 PM
Replies: 9
Views: 555
Posted By DRMA
Brian, Welcome to the world of Experimental...

Brian,

Welcome to the world of Experimental Aircraft!

If you want to talk to a large number of Van's RV builders and see a number of completed and in-progress planes, suggest you join us at an...
Forum: Electrical Systems 08-23-2021, 12:39 PM
Replies: 14
Views: 1,123
Posted By DRMA
Phil, I would suggest you get a high quality...

Phil,

I would suggest you get a high quality power supply designed for ham radio which will have good filtering and output 13.8 volts with higher current to handle inrush starting currents. I...
Forum: RV General Discussion/News 08-09-2021, 06:53 PM
Replies: 27
Views: 2,778
Posted By DRMA
Or check with your local EAA chapter. Many have...

Or check with your local EAA chapter. Many have scales for the use of their members, and membership dues are low.

I weighed mine with the EAA 302 chapter (Conroe, TX) scales. They do charge a...
Forum: RV-3 07-16-2021, 11:59 AM
Replies: 18
Views: 1,951
Posted By DRMA
Suggest you take a look at the Pipistrel...

Suggest you take a look at the Pipistrel Alpha-Electro for ideas on possible motors and other equipment for an electric RV-3. The Alpha-Electro is a certified electric...
Forum: RV-10 07-09-2021, 11:33 AM
Replies: 13
Views: 1,885
Posted By DRMA
GTR-20 Location

I don't know where most people are mounting theirs, but on my RV-10 I mounted mine the the underside of an avionics tray attached to the back side of my panel, ahead of the sub-panel. Afraid I don't...
Forum: RV-10 07-08-2021, 02:30 PM
Replies: 2
Views: 682
Posted By DRMA
I believe that is correct. I never found any...

I believe that is correct. I never found any electrical drawings provided with the RV-10 builders drawings that come with the kits.

There is an RV-10 electrical reference in the form of the OP-37...
Forum: RV General Discussion/News 07-06-2021, 05:09 PM
Replies: 48
Views: 4,319
Posted By DRMA
Similarities Between RVs and Grummans

I got my pilot's license back in 1996 in a Grumman AA-1B, and until last year had most of my PIC time in the Grumman aircraft. In fact, I owned a Traveler AA-5 for 5 years before completing my...
Forum: Electrical Systems 07-05-2021, 01:29 PM
Replies: 29
Views: 2,376
Posted By DRMA
Fuse/Breaker coordination is typically part of...

Fuse/Breaker coordination is typically part of the design of industrial and high power electrical systems, in order to avoid upstream devices tripping prior to downstream devices. I'm not sure if...
Forum: Electrical Systems 07-04-2021, 04:58 PM
Replies: 29
Views: 2,376
Posted By DRMA
My preference as an Electrical Engineer is to...

My preference as an Electrical Engineer is to protect the wire. Since this wire is coming from the fuse block to feed multiple breakers, why not protect the wire with a suitably sized fuse in the...
Forum: RV General Discussion/News 07-04-2021, 04:41 PM
Replies: 15
Views: 2,584
Posted By DRMA
No broken bolts on my first condition inspection,...

No broken bolts on my first condition inspection, but several stripped screw heads that required drilling out and in a couple of cases replacing the plate nuts. I hate phillips head screws!
Forum: RV-10 06-28-2021, 04:39 PM
Replies: 58
Views: 9,181
Posted By DRMA
Sorry 50Pesos, my message (#21) was to a...

Sorry 50Pesos, my message (#21) was to a different Eric. However, I have just sent you a PM with my contact info if you would like to talk.

Regards,
Forum: RV-10 06-25-2021, 04:03 PM
Replies: 15
Views: 1,333
Posted By DRMA
I also placed my GPS antennas aft of the baggage...

I also placed my GPS antennas aft of the baggage bulkhead on the top of the tail cone. I talked to Van's builder support and they said Van's advises against drilling any holes in the fiberglass...
Forum: RV-10 06-24-2021, 12:32 PM
Replies: 58
Views: 9,181
Posted By DRMA
Eric, I just sent you a PM through this site...

Eric,

I just sent you a PM through this site with my phone number and some additional info. I look forward to meeting you.

Cheers.
Forum: RV-10 06-24-2021, 12:09 PM
Replies: 11
Views: 939
Posted By DRMA
I didn't use mine very often, but when I needed...

I didn't use mine very often, but when I needed it there was nothing else that would have done the job.

I initially purchased the cheapest one from YardStore.com but found that it was too weak in...
Forum: Glass Cockpit 06-22-2021, 01:24 PM
Replies: 16
Views: 1,803
Posted By DRMA
I also took the AEA class and found it to be an...

I also took the AEA class and found it to be an excellent class for learning about the G3X systems/architecture and avionics wiring methods. I highly recommend it.
Forum: RV-10 06-20-2021, 02:42 PM
Replies: 7
Views: 1,115
Posted By DRMA
The VS Rear Spar won't really be visible since it...

The VS Rear Spar won't really be visible since it is hidden behind the rudder. I would still prime it (I primed mine).
Forum: RV Ongoing Maintenance Issues 06-20-2021, 02:12 PM
Replies: 22
Views: 2,436
Posted By DRMA
Duncan, Suggest you get in contact with Vic...

Duncan,

Suggest you get in contact with Vic Syracuse of Base Leg Aviation (https://baselegaviation.com/). He literally wrote the book on Van's Aircraft pre-buy inspections, and he is located in...
Forum: RV-10 06-14-2021, 04:42 PM
Replies: 58
Views: 9,181
Posted By DRMA
Eric, As far as I know, there are basically 3...

Eric,

As far as I know, there are basically 3 different A/C systems that are typically used on the RV-10 which have an engine driven compressor. There is the Airflow Systems (which I have), a clone...
Forum: RV-10 06-13-2021, 03:30 PM
Replies: 10
Views: 2,263
Posted By DRMA
Charles, Welcome to the world of RV-10...

Charles,

Welcome to the world of RV-10 ownership. I'm surprised that no one has responded to your post yet!

The RV-10 isn't that much different from the rest of the RV line, so you should be able...
Forum: Glass Cockpit 06-10-2021, 05:11 PM
Replies: 2
Views: 514
Posted By DRMA
I had excellent help and support from...

I had excellent help and support from Aerotronics. I highly recommend them as an option to consider.
Forum: Glass Cockpit 06-04-2021, 11:11 AM
Replies: 14
Views: 1,915
Posted By DRMA
I bought my Garmin equipment as well as other...

I bought my Garmin equipment as well as other panel components from Aerotronics, and had them CNC cut my panel for me as well. I highly recommend then. They are a VAF advertiser as well.

Cheers,
Forum: RV-10 06-03-2021, 02:02 PM
Replies: 4
Views: 954
Posted By DRMA
Synergy Air Class and Lead Times

Just a heads up: If you're taking the 8 day (RV-10) Synergy Air empennage class you will mostly finish the empennage kit during the class, so with the current long lead times you may want to...
Forum: RV-14 06-01-2021, 04:29 PM
Replies: 11
Views: 1,473
Posted By DRMA
Cable Shields As Power Wires

While you may be able to get away with using the shield as the return leg (ground) for the nav/strobe lights, I wouldn't recommend it. The shield is meant in most cases to prevent the transmission...
Forum: RV Building Tips/Techniques 05-22-2021, 06:55 PM
Replies: 18
Views: 1,154
Posted By DRMA
I used my random orbit sander for cleaning up...

I used my random orbit sander for cleaning up edges of fiberglass parts after cutting them with a Dremel tool, and other fiberglass/epoxy sanding. I used it quite a bit, but didn't find much use for...
Forum: RV Building Tips/Techniques 05-22-2021, 02:45 PM
Replies: 18
Views: 1,154
Posted By DRMA
Rather than trying to trim all the legs to...

Rather than trying to trim all the legs to exactly the same length, you might consider installing T-Nuts and carriage bolts in each leg and using those to level the bench. That is what I did, and it...
Forum: Glass Cockpit 05-10-2021, 01:07 PM
Replies: 30
Views: 3,346
Posted By DRMA
By setting the VPX trim to Speed = 0, I believe...

By setting the VPX trim to Speed = 0, I believe you are taking the VPX out of the control system, other than as a method of mixing the switch inputs from both sticks. In this way you avoid the 2...
Forum: Glass Cockpit 05-09-2021, 04:14 PM
Replies: 30
Views: 3,346
Posted By DRMA
As a registered electrical engineer who worked...

As a registered electrical engineer who worked doing instrumentation and control systems for several years, I would recommend using one or the other (Garmin or VPX) but not both. It is generally not...
Forum: RV General Discussion/News 05-06-2021, 03:40 PM
Replies: 12
Views: 2,144
Posted By DRMA
I took the Synergy 1 day class after taking the...

I took the Synergy 1 day class after taking the EAA 2 day sheet metal/Van's class. I found the Synergy class to be basically the same as the EAA class, just more condensed. So I highly recommend...
Forum: RV-10 05-02-2021, 05:30 PM
Replies: 11
Views: 1,643
Posted By DRMA
I found the fuselage took a lot more time than...

I found the fuselage took a lot more time than the wings to complete, and the fuse connects to the tail cone that is part of the empennage. However, I think you can build in either order. I...
Forum: Glass Cockpit 04-23-2021, 12:20 PM
Replies: 39
Views: 8,863
Posted By DRMA
GTX 45R Software Updates

Now if you would only make it possible for us to update the software in the GTX 45R ourselves, using a laptop and the USB cable I installed (pins 44, 2, 24, 45) I would be a much happier...
Forum: RV Building Tips/Techniques 04-21-2021, 05:11 PM
Replies: 5
Views: 882
Posted By DRMA
Being an electrical engineer, I suggest you start...

Being an electrical engineer, I suggest you start by developing your wiring diagram on paper. Figure out what you are going to need to wire (avionics LRUs, lights, AP servos, switches,...
Forum: RV General Discussion/News 04-20-2021, 05:01 PM
Replies: 21
Views: 1,911
Posted By DRMA
Mike, Welcome to the RV Madness! (grin) Your...

Mike,

Welcome to the RV Madness! (grin)

Your plan to join a local EAA Chapter is a great start. If there is more that 1 chapter in your area, attend a meeting of each before deciding which one...
Forum: RV-9/9A 04-18-2021, 02:05 PM
Replies: 29
Views: 5,233
Posted By DRMA
Mike Seager who is a well known and experienced...

Mike Seager who is a well known and experienced transition trainer for all of the Van's aircraft runs his operation out of the Vernonia airport, which is a grass runway. He operates all of the RV...
Forum: RV-14 04-14-2021, 02:51 PM
Replies: 15
Views: 1,888
Posted By DRMA
Lot's of good recommendations already provided by...

Lot's of good recommendations already provided by others, but here are a couple that haven't been offered yet:

Like you, I started with a background in woodworking, home plumbing, and auto repair;...
Forum: Glass Cockpit 04-02-2021, 09:21 AM
Replies: 437
Views: 156,590
Posted By DRMA
G3X Database Updates - Allow Copy to Multiple SD Cards

In order to update my G3X database info every month, since I have 3 GDUs I typically write the update to 3 duplicate SD cards so that I can have all 3 GDUs update at the same time. However, I have...
Forum: Tools 03-17-2021, 06:51 PM
Replies: 27
Views: 2,323
Posted By DRMA
Lincoln Electric typically offers a very nice...

Lincoln Electric typically offers a very nice deal on a good TIG welder to anyone taking their 2 hr. class at EAA Airventure. I suspect they will repeat this again this year. So if you are planning...
Forum: RV General Discussion/News 03-01-2021, 04:53 PM
Replies: 25
Views: 4,881
Posted By DRMA
Are you sure you had the actual Bill of Sale from...

Are you sure you had the actual Bill of Sale from Van's? They don't usually send it to you until you are ready to register the plane and have ordered all of the kits for the plane. You might want...
Forum: RV-10 02-22-2021, 07:47 PM
Replies: 3
Views: 614
Posted By DRMA
I installed the blue Avery mount on my RV-10. ...

I installed the blue Avery mount on my RV-10. Installation of the mount was easy. I then installed a Garmin G3X system heated pitot with AOA into the mount. This took a bit of care as you have to...
Forum: RV Ongoing Maintenance Issues 02-19-2021, 06:18 PM
Replies: 18
Views: 2,187
Posted By DRMA
Note that the Lycoming IO-540 D4A5 engine should...

Note that the Lycoming IO-540 D4A5 engine should NOT be using an impulse coupled mag. It should be using a slick start unit instead. May not need that with a light speed ignition, as I don't know...
Forum: RV General Discussion/News 02-06-2021, 01:17 PM
Replies: 46
Views: 4,208
Posted By DRMA
Thank you Barb, for your clear communications and...

Thank you Barb, for your clear communications and assistance during my RV-10 purchases. You have been a key to Van's success as one of the customer facing members of the Van's team. You will be...
Forum: Flight Testing 02-02-2021, 11:59 AM
Replies: 60
Views: 7,237
Posted By DRMA
I used the Additional Pilot provisions of the FAA...

I used the Additional Pilot provisions of the FAA rules to have a very well qualified (former test pilot, CFII, with >500 hrs in the RV-10 he owns) second pilot along on my first couple of flights. ...
Forum: RV General Discussion/News 01-26-2021, 07:29 PM
Replies: 82
Views: 12,485
Posted By DRMA
It took a bit of searching, but I managed to find...

It took a bit of searching, but I managed to find a large "storage unit" at a small self-store facility that had plenty of power circuits in the unit. I added some overhead lights and ended up with...
Forum: RV-10 01-26-2021, 03:46 PM
Replies: 14
Views: 4,077
Posted By DRMA
I'm very happy with my 3 blade MT prop now that...

I'm very happy with my 3 blade MT prop now that I'm flying with it, and am glad I made this selection.

Is it faster/slower than the 2 blade Hartzell? - I can't say as the only way to really know...
Forum: RV-10 01-26-2021, 03:01 PM
Replies: 18
Views: 1,792
Posted By DRMA
I have the AeroSport panel and decided when...

I have the AeroSport panel and decided when installing my glare shield cover that the handles were too narrow to be useful. So I covered mine up and haven't missed them at all. I use the center bar...
Forum: Fiberglass 01-20-2021, 01:16 PM
Replies: 7
Views: 2,918
Posted By DRMA
I found that a Dremel tool with a diamond cutting...

I found that a Dremel tool with a diamond cutting wheel worked best for me on the fiberglass cuts. Then I used the PermaGrit tools and a 12" piece of 2x4 with #80 grit sandpaper attached to it using...
Forum: RV-10 01-20-2021, 01:05 PM
Replies: 10
Views: 2,238
Posted By DRMA
One lesson learned the hard way on exactly the...

One lesson learned the hard way on exactly the installation you are doing. Be sure to install the Plane Around 180 with the Van's provided actuator gears in the door pocket at the location specified...
Forum: Electrical Systems 01-18-2021, 11:56 AM
Replies: 7
Views: 852
Posted By DRMA
No different than the "surge" you get when you...

No different than the "surge" you get when you power on the avionics buss any other way. With the low currents drawn by today's avionics, the level of "surge" is insignificant.
Forum: RV Building Tips/Techniques 01-18-2021, 11:36 AM
Replies: 10
Views: 1,681
Posted By DRMA
Note this article is: Tony Bingelis (originally...

Note this article is: Tony Bingelis (originally published in EAA Sport Aviation, May 1994). No glass panels at that time to deal with, and not much electrical other than radios, lights and perhaps...
Forum: RV-7/7A 01-18-2021, 11:26 AM
Replies: 21
Views: 3,321
Posted By DRMA
One solution that I used but hasn't been...

One solution that I used but hasn't been mentioned yet is using the clips that come with a center countersunk hole. I mount the clip with the included tape, and then drill the hole and use a pulled...
Forum: Electrical Systems 01-17-2021, 10:38 PM
Replies: 7
Views: 852
Posted By DRMA
I also used a relay similar to the B&C Relay,...

I also used a relay similar to the B&C Relay, which is a DPDT relay. This allowed me to energize the avionics bus through the NC contacts, and then wire the relay control coil so the relay is...
Forum: Glass Cockpit 01-16-2021, 11:55 AM
Replies: 6
Views: 1,355
Posted By DRMA
There is a separate manual for the 45R. It's...

There is a separate manual for the 45R. It's available at https://static.garmin.com/pumac/190-01499-10_01.pdf
Forum: RV-10 01-14-2021, 05:32 PM
Replies: 9
Views: 1,632
Posted By DRMA
I'm not sure where Dynon puts these things, but...

I'm not sure where Dynon puts these things, but on my Garmin equipped RV-10, I also have the OAT probe and magnetometer located in the wings, and those need wires. And if you install the aileron...
Forum: Electrical Systems 01-14-2021, 05:16 PM
Replies: 34
Views: 4,946
Posted By DRMA
A couple of minor thoughts on your updates: 2) ...

A couple of minor thoughts on your updates:

2) Any quality external regulated power supply will have built-in over current protection, so you may not need this fuse, unless you have a long wire...
Forum: Electrical Systems 01-14-2021, 11:17 AM
Replies: 34
Views: 4,946
Posted By DRMA
I believe it is much better to protect each LRU...

I believe it is much better to protect each LRU with a circuit breaker or fuse, rather than tying several of them together, so that you only lose a single LRU in the event of an electrical supply...
Forum: RV General Discussion/News 01-13-2021, 04:48 PM
Replies: 28
Views: 4,127
Posted By DRMA
Jeremy, Congratulations on obtaining the...

Jeremy,

Congratulations on obtaining the go-ahead to build.

From your mission profile, I agree with others that it sounds like an RV-9 may be your best fit.

Since you live in The Woodlands, I...
Forum: RV Building Tips/Techniques 01-13-2021, 12:17 PM
Replies: 10
Views: 1,681
Posted By DRMA
I recommend running most grounds back to a...

I recommend running most grounds back to a central location, with that location then bonded/grounded to the engine block. While there are a few things that ground locally directly to the engine...
Forum: RV General Discussion/News 01-09-2021, 02:38 PM
Replies: 13
Views: 2,821
Posted By DRMA
Make sure on the first pre-flight to check that...

Make sure on the first pre-flight to check that the control surfaces move in the correct direction with stick movement. It sounds obvious, but there are a number of accidents due to the controls...
Forum: RV-12/RV-12iS 01-04-2021, 03:59 PM
Replies: 9
Views: 2,153
Posted By DRMA
If you are using a regulated power supply such as...

If you are using a regulated power supply such as the one above, then you should be able to connect it to either side of the master switch, as it will be putting out a constant voltage (13.8 vdc)...
Forum: RV-10 12-29-2020, 07:30 PM
Replies: 6
Views: 1,150
Posted By DRMA
I had the same problem. My solution was to strip...

I had the same problem. My solution was to strip off the Van's door seals and move to a different seal. Right now I'm temporarily using stick-on seals from the local Lowes hardware, and they are...
Forum: RV General Discussion/News 12-24-2020, 10:51 AM
Replies: 10
Views: 1,606
Posted By DRMA
I used KitLog Pro for my documentation. While it...

I used KitLog Pro for my documentation. While it is getting rather old, it still works and allows for easy posting of your log to an on-line website. If I were starting a build today, I would look...
Forum: RV General Discussion/News 12-23-2020, 11:50 AM
Replies: 36
Views: 4,999
Posted By DRMA
You might consider a CO detector. Also, what...

You might consider a CO detector. Also, what about a wig-wag switch?
Forum: RV-10 12-19-2020, 12:40 PM
Replies: 4
Views: 1,150
Posted By DRMA
You might take a look at the Bogert Universal Big...

You might take a look at the Bogert Universal Big Bogi tow bar. There is even a photo of one being used with a golf cart for a Bonanza in the ratings section of the webpage. ...
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