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Search: Posts Made By: Pat Hatch
Forum: Fiberglass 02-26-2021, 06:13 PM
Replies: 7
Views: 533
Posted By Pat Hatch
Dan, any idea what effect these have on TAS? Did...

Dan, any idea what effect these have on TAS? Did you ever do any before and after testing? Just curious...my guess is that's a lot of drag being smoothed out!
Forum: RV-10 02-22-2021, 08:06 AM
Replies: 16
Views: 6,894
Posted By Pat Hatch
As they say, everything in aviation is a...

As they say, everything in aviation is a compromise. So for a given motor size, i.e., weight and physical size, you can have either speed or force. Given the size of the RV-10 flaps and the...
Forum: Electrical Systems 01-19-2021, 07:20 AM
Replies: 10
Views: 954
Posted By Pat Hatch
Think I'll chime in here since I'm mentioned by...

Think I'll chime in here since I'm mentioned by my good friend Bill E. Early in our relay board development we had a couple of cases where a particular brand of autopilot was being knocked off line...
Forum: RV-10 12-07-2020, 08:45 AM
Replies: 9
Views: 1,004
Posted By Pat Hatch
As far as the flap actuator goes, it's not...

As far as the flap actuator goes, it's not necessary to order it yet, but we do recommend that you make provisions for it. The stock flap bracket is located in the tunnel between the seat belt...
Forum: RV-14 10-24-2020, 05:30 PM
Replies: 7
Views: 1,584
Posted By Pat Hatch
Bart, Have you deactivated the serial port on...

Bart,

Have you deactivated the serial port on the G3X for the flaps? If you haven't, you will need to go into the config mode and go to the serial port that you have selected for your flaps on the...
Forum: Glass Cockpit 10-20-2020, 04:28 PM
Replies: 41
Views: 9,940
Posted By Pat Hatch
Hi Justin or G3xpert, Not sure if there is any...

Hi Justin or G3xpert,

Not sure if there is any correlation, but since upgrading to 8.72 I'm getting a red X over my transponder on the G3X, intermittently at first, but lately seems to be constant. ...
Forum: RV-9/9A 09-08-2020, 05:02 PM
Replies: 5
Views: 1,512
Posted By Pat Hatch
The standard RV Flap Actuator will work on the...

The standard RV Flap Actuator will work on the RV-9, however, we feel that because of the increased aerodynamic load of the -9 flaps over say the RV-7 and RV-8, the RV-10/-14 actuator is a better...
Forum: RV-9/9A 09-07-2020, 08:04 PM
Replies: 5
Views: 1,512
Posted By Pat Hatch
PH Aviation Flap Actuator in an RV-9

So we've been thinking about trying the new RV-10/-14 flap actuator in an RV-9 because the -9 wing and flaps are much the same as the -10/-14 and we thought it would match the flaps aerodynamic load...
Forum: Electrical Systems 08-21-2020, 06:46 PM
Replies: 20
Views: 3,065
Posted By Pat Hatch
You're getting a greater than 10 amp fluctuation...

You're getting a greater than 10 amp fluctuation which is not normal. The only time I have seen this before it turned out to be a field switch with internal corrosion and the contacts were also...
Forum: Trip Write-ups 08-16-2020, 02:17 PM
Replies: 5
Views: 1,831
Posted By Pat Hatch
Okeechobee Breakfast Club

We had a great RV turnout for breakfast this morning at Okeechobee, FL. I counted at least 10 RVs including a very nice -14A.

Ours is a loosely organized group from all over the state that gets...
Forum: Electrical Systems 08-08-2020, 02:36 PM
Replies: 36
Views: 5,441
Posted By Pat Hatch
Chris, the Spruce part number is 07-17968, $80.75.

Chris, the Spruce part number is 07-17968, $80.75.
Forum: Electrical Systems 08-05-2020, 08:32 PM
Replies: 22
Views: 3,567
Posted By Pat Hatch
I think what you're seeing is normal and just...

I think what you're seeing is normal and just your regulator adjusting the voltage between 14.4 and 14.7 volts. Some of that could be indication error, I suppose. Initially after engine start, it...
Forum: Electrical Systems 08-05-2020, 05:33 PM
Replies: 22
Views: 3,567
Posted By Pat Hatch
Right, I note that Shorai batteries don't have a...

Right, I note that Shorai batteries don't have a BMS. But even those Lithium batteries that do, over-voltage protection is still required or recommended. So your plan to install the Perihelion unit...
Forum: Electrical Systems 08-05-2020, 04:25 PM
Replies: 22
Views: 3,567
Posted By Pat Hatch
You don't mention what alternator you have or...

You don't mention what alternator you have or whether it is internally or externally regulated. Also, does your Shorai battery have a BMS?
Forum: RV-14 01-20-2020, 07:43 PM
Replies: 25
Views: 4,380
Posted By Pat Hatch
If I were building an RV-14, I would put the GMU...

If I were building an RV-14, I would put the GMU 22 in the wingtip--personal preference after having mounted several in different airplanes. It's just going to give you better odds for good...
Forum: RV models of the future (RV-??) 12-23-2019, 01:35 PM
Replies: 41
Views: 15,205
Posted By Pat Hatch
OK, so I'm a dreamer--guilty as charged!...

OK, so I'm a dreamer--guilty as charged! :)

Paul, I'd of thought you would have had your S-21 on order by now! As you probably know, a lot of RV guys have them on order or are working on them. ...
Forum: RV models of the future (RV-??) 12-22-2019, 11:19 AM
Replies: 41
Views: 15,205
Posted By Pat Hatch
Currently, the best back country kit on the...

Currently, the best back country kit on the market is the S-21, hands down.

Problem is, there's currently a 14 month wait. That's a lifetime for us older guys!

This presents a huge opportunity for...
Forum: Reviews 12-10-2019, 09:49 PM
Replies: 5
Views: 916
Posted By Pat Hatch
Thanks, guys, for the kind comments, really...

Thanks, guys, for the kind comments, really appreciate it! Thanks, JR.

Our Ultimate Trim Relay Board has undergone several iterations and many improvements:

We added separate power inputs for the...
Forum: RV Friends Who Have Passed On 12-08-2019, 06:19 PM
Replies: 106
Views: 15,353
Posted By Pat Hatch
Tom, sorry, my friend. God bless.

Tom, sorry, my friend. God bless.
Forum: RV General Discussion/News 11-22-2019, 06:47 AM
Replies: 16
Views: 2,189
Posted By Pat Hatch
Agreed, mostly a cosmetic thing and in your case...

Agreed, mostly a cosmetic thing and in your case probably helps prevent your flap skins from popping out. You could try to intentionally pop them out by leaning on the trailing edge of the flaps...
Forum: RV General Discussion/News 11-21-2019, 08:24 AM
Replies: 16
Views: 2,189
Posted By Pat Hatch
Michael, I would say your gap is a little...

Michael,

I would say your gap is a little greater than most. I believe the desired situation is no gap. As a matter of fact, most folks have seen the need to place some PTFE tape on the underside...
Forum: RV General Discussion/News 11-20-2019, 08:54 PM
Replies: 16
Views: 2,189
Posted By Pat Hatch
I'd like to make one other point to add to this...

I'd like to make one other point to add to this discussion. Limiting the stroke of the actuator will not necessarily solve this problem. Unless you severely limit the stroke, the leading edge can...
Forum: RV-10 11-14-2019, 08:16 PM
Replies: 24
Views: 3,983
Posted By Pat Hatch
I guess I better start making plans to go!

I guess I better start making plans to go!
Forum: RV-10 11-11-2019, 08:45 PM
Replies: 24
Views: 3,983
Posted By Pat Hatch
Okay, I think I have some more information that...

Okay, I think I have some more information that might be helpful. Please read paragraph 5.20a of the VP-X Pro installation manual, page 38.

The VP-X folks do not support the limit switches and they...
Forum: RV-10 11-11-2019, 08:02 PM
Replies: 24
Views: 3,983
Posted By Pat Hatch
We have heard back from a few of our customers...

We have heard back from a few of our customers that our flap actuator works fine with the VP-X Pro in spite of the statement in their manual. I need to speak to Chad to find out why that statement...
Forum: RV General Discussion/News 10-28-2019, 09:27 PM
Replies: 41
Views: 6,129
Posted By Pat Hatch
Tom, enjoy your time off with Suzanne...and...

Tom, enjoy your time off with Suzanne...and thanks for all you've done for us over the years--some of which was during these trying times.
Forum: ADS-B 08-31-2019, 09:19 PM
Replies: 7
Views: 2,028
Posted By Pat Hatch
Bruce, here's a long shot on a Saturday night: ...

Bruce, here's a long shot on a Saturday night: did you reset your configuration page for the GTX 23ES on your G3X? Check to make sure integrity is set to 1E-7. I'm assuming this is your first...
Forum: Glass Cockpit 08-05-2019, 07:59 PM
Replies: 14
Views: 3,371
Posted By Pat Hatch
What about the ADS-B Out requirement? Are you...

What about the ADS-B Out requirement? Are you considering upgrading to an ADS-B transponder? If so, you might want to take a look at the GNX 375 which will give you a GPS navigator and ADS-B...
Forum: RV Ongoing Maintenance Issues 07-21-2019, 09:46 AM
Replies: 20
Views: 3,721
Posted By Pat Hatch
If all else fails, the only thing that's going to...

If all else fails, the only thing that's going to get it out is UV light--leave it out in the sun for a few hours, maybe a couple of days or more and it will eventually fade out.
Forum: RV-8/8A 07-20-2019, 02:59 PM
Replies: 3
Views: 935
Posted By Pat Hatch
Ok, usually the wire goes from the trim motor...

Ok, usually the wire goes from the trim motor through the elevator spar and a slot cut in the curved leading edge, from there through a grommet in the horizontal stab rear spar and then through the...
Forum: RV-8/8A 07-20-2019, 09:08 AM
Replies: 3
Views: 935
Posted By Pat Hatch
Roger, It's actually pretty simple. It sounds...

Roger,

It's actually pretty simple. It sounds like you have one cable, should have 5 wires inside, two for power to the trim motor and three for the potentiometer feedback to your trim indicator. ...
Forum: RV General Discussion/News 05-24-2019, 04:49 PM
Replies: 19
Views: 4,834
Posted By Pat Hatch
Thanks for the comments, guys! Ari, thanks again...

Thanks for the comments, guys! Ari, thanks again for writing these instructions, excellent job.

Safety-wire mod not required here because the rod-end bearing cannot rotate.
Forum: Glass Cockpit 05-20-2019, 12:30 PM
Replies: 12
Views: 2,736
Posted By Pat Hatch
Chris, Yes, I agree, it would appear that the G5...

Chris,

Yes, I agree, it would appear that the G5 is the erroneous one considering your TAS in-flight data. The manometer test will just help you confirm that as well as verify that you don't have a...
Forum: Glass Cockpit 05-20-2019, 09:19 AM
Replies: 12
Views: 2,736
Posted By Pat Hatch
Smile Chris, Why not set up a water manometer to...

Chris,

Why not set up a water manometer to verify your in-flight results?

There are plenty of resources on the web that describe the process and the math involved. Pretty simple to set up and to...
Forum: RV General Discussion/News 05-20-2019, 08:11 AM
Replies: 19
Views: 4,834
Posted By Pat Hatch
Thanks, John, for the report on the PH Aviation...

Thanks, John, for the report on the PH Aviation actuator in your blog!

Just to clarify, there are two different flap actuators, one for the single-digit RVs and one for the -10 and -14. We have...
Forum: Electrical Systems 05-13-2019, 10:01 PM
Replies: 7
Views: 1,304
Posted By Pat Hatch
SteinAir sells this 16-pin CPC connector that...

SteinAir sells this 16-pin CPC connector that looks like what you're looking for. I've used them extensively and they work well. Also has the crimp tool and extractor, all reasonably...
Forum: Trip Write-ups 05-02-2019, 08:58 PM
Replies: 4
Views: 1,403
Posted By Pat Hatch
Luke, thanks for stopping by. It was great...

Luke, thanks for stopping by. It was great meeting you and your family!
Forum: RV General Discussion/News 03-31-2019, 08:03 PM
Replies: 28
Views: 5,253
Posted By Pat Hatch
Ok, Ron, are you sure this isn't an early April...

Ok, Ron, are you sure this isn't an early April Fools joke? If so, I like your sense of humor, and you punked at lot of people! If not, pretty unbelievable! :)
Forum: RV General Discussion/News 03-13-2019, 04:45 PM
Replies: 17
Views: 9,422
Posted By Pat Hatch
If you are referring to a switch that has screw...

If you are referring to a switch that has screw terminals, the easiest way to handle two wires going to the same terminal is to crimp the two wires in a larger ring terminal, maybe the blue...
Forum: RV General Discussion/News 02-23-2019, 07:53 PM
Replies: 1
Views: 569
Posted By Pat Hatch
Van's rod end bearing part number is CM-4M. ...

Van's rod end bearing part number is CM-4M. Manufacturers are Heim and Aurora. Wicks has a good price.
Forum: Electrical Systems 02-16-2019, 12:14 PM
Replies: 6
Views: 1,017
Posted By Pat Hatch
The Ray Allen servos draw approximately 150...

The Ray Allen servos draw approximately 150 milliamps no load, this from their web site. Can't imagine it's a very high number fully loaded, I wouldn't think more than 300 milliamps.
Forum: Primers 02-13-2019, 09:43 AM
Replies: 6
Views: 1,621
Posted By Pat Hatch
I will agree with my friend, Bill, who is the...

I will agree with my friend, Bill, who is the expert on this subject! I can tell you that living here in Florida with my RV-6, in every case of corrosion I have encountered on my 17-year-old...
Forum: RV-10 02-04-2019, 12:34 PM
Replies: 11
Views: 2,619
Posted By Pat Hatch
Larry, We assumed that the rib is parallel to...

Larry,

We assumed that the rib is parallel to the longitudinal axis and, yes, we mounted it parallel to the rib.

We recently (about a year ago) installed a GMU 11 in a Glasair III's right wing. ...
Forum: RV-10 02-04-2019, 11:59 AM
Replies: 11
Views: 2,619
Posted By Pat Hatch
The last RV-10 panel install we did was with the...

The last RV-10 panel install we did was with the GMU 22 and here is where we mounted it. The counterbalance in the leading edge of the aileron did not appear to be magnetic as we could not get a...
Forum: RV-10 02-04-2019, 09:28 AM
Replies: 11
Views: 2,619
Posted By Pat Hatch
Generally, we have had the best results in the...

Generally, we have had the best results in the wing, preferably the wing tip. If mounting on the outboard wing rib, position the GMU 11 as far aft as practical to avoid any lighting/wiring in the...
Forum: RV-9/9A 01-12-2019, 09:49 AM
Replies: 37
Views: 9,526
Posted By Pat Hatch
Flap Position Indication at Night

The answer is no, unless you use a flashlight or if you have a light of some sort illuminating the flaps from the cockpit. This is the single best reason for having a flap position indicator, in my...
Forum: Glass Cockpit 01-08-2019, 01:17 PM
Replies: 14
Views: 2,896
Posted By Pat Hatch
Just to add to what Walt said, I have installed...

Just to add to what Walt said, I have installed the TCW Servo Boosters in a Glasair III and a Velocity XL/RG, both with Garmin panels and servos and both have worked just fine. Like you said, the...
Forum: RV Ongoing Maintenance Issues 01-06-2019, 06:23 PM
Replies: 26
Views: 4,086
Posted By Pat Hatch
Sumo, sure sounds like the master contactor. ...

Sumo, sure sounds like the master contactor. Shop around for one, I would check with B&C Specialties as well. I've always had good success with the B&Cs in my airplane, $35 with the diode already...
Forum: RV General Discussion/News 12-20-2018, 09:02 AM
Replies: 9
Views: 2,531
Posted By Pat Hatch
1) Yes, if there are no red highlights, it is a...

1) Yes, if there are no red highlights, it is a passing report. Good to go for rebate.
Forum: RV-14 11-29-2018, 06:40 PM
Replies: 23
Views: 4,986
Posted By Pat Hatch
RV-14 Flap Bracket

Ari, here's a suggestion for trimming the bracket. It also utilizes a couple more of the existing rivet holes.

http://www.phaviation.com/VAF-photos/Untitled-1.jpg
Forum: RV-14 11-29-2018, 05:33 PM
Replies: 23
Views: 4,986
Posted By Pat Hatch
What I would do is dimple and set rivets in them....

What I would do is dimple and set rivets in them. You could also fill the holes with micro and sand them flush.

P.S. You might look around elsewhere in your kit for the angle material and replace...
Forum: RV-14 11-29-2018, 04:26 PM
Replies: 23
Views: 4,986
Posted By Pat Hatch
Ari, I like your solution so far a lot. For the...

Ari, I like your solution so far a lot. For the angle extensions I would suggest at least a 1" angle, perhaps 1 1/2", by 0.063", so you will have plenty of edge distance for the required 5/16" hole...
Forum: RV-4 11-20-2018, 12:44 PM
Replies: 6
Views: 1,413
Posted By Pat Hatch
Thanks for the kind words, Bill! Great hearing...

Thanks for the kind words, Bill! Great hearing from you.

I do not know of anyone having installed one of our actuators in an RV-4 yet. I was waiting to see if anyone checked in with some info. ...
Forum: RV General Discussion/News 11-17-2018, 04:53 PM
Replies: 36
Views: 6,698
Posted By Pat Hatch
Wow! Absolutely gorgeous!

Wow! Absolutely gorgeous!
Forum: RV-14 11-12-2018, 07:49 PM
Replies: 23
Views: 4,986
Posted By Pat Hatch
Hole-to-hole distance of the Vans RV-14 Actuator

We happen to have a stock RV-10/RV-14 flap motor that we use for testing. The hole-to-hole distance of the fully retracted flap motor is 10 1/4". That should help you calculate the position of the...
Forum: RV-14 11-12-2018, 07:13 PM
Replies: 23
Views: 4,986
Posted By Pat Hatch
PH Aviation Flap Actuator in an RV-14

We haven't had the opportunity to actually mount one of our actuators in an RV-14 yet, but we have looked at the drawings and it looks like the solution will involve moving the flap motor attach...
Forum: Glass Cockpit 11-04-2018, 02:46 PM
Replies: 4
Views: 647
Posted By Pat Hatch
I'll tell you my experience for what it is worth....

I'll tell you my experience for what it is worth. I have installed several of the G3X displays over the years and have found that the best way for me is to glue the frames in. I tried riveting them...
Forum: Electrical Systems 10-30-2018, 04:30 PM
Replies: 1
Views: 587
Posted By Pat Hatch
You need to connect the trim wires per the Ray...

You need to connect the trim wires per the Ray Allen diagram to the trim position indicator and then grab a 9 volt battery or equivalent and run the trim motor up and down, should see the lights come...
Forum: RV Friends Who Have Passed On 10-13-2018, 09:16 AM
Replies: 86
Views: 37,198
Posted By Pat Hatch
Oh man, I hated waking up to this this morning. ...

Oh man, I hated waking up to this this morning. I can't believe it. Great guy for sure. Condolences to everyone in his family. So sorry.
Forum: Glass Cockpit 09-13-2018, 09:32 PM
Replies: 39
Views: 12,701
Posted By Pat Hatch
...but first check that you have the Screen Shot...

...but first check that you have the Screen Shot option turned on in the setup pages. I don't believe it defaults on.
Forum: RV General Discussion/News 08-27-2018, 11:42 AM
Replies: 52
Views: 21,204
Posted By Pat Hatch
Thanks, Mark. It's on the way, and I appreciate...

Thanks, Mark. It's on the way, and I appreciate your offer to document the process!
Forum: RV General Discussion/News 08-24-2018, 02:48 PM
Replies: 52
Views: 21,204
Posted By Pat Hatch
Hi Mark, here is a photo provided by one of our...

Hi Mark, here is a photo provided by one of our customers who installed our actuator in an RV-8. He said that all he had to do was position the upper bracket a little higher on the bulkhead and make...
Forum: RV-10 08-14-2018, 10:07 AM
Replies: 16
Views: 6,894
Posted By Pat Hatch
Mark, The RV-8 actuators run about 6 seconds no...

Mark,
The RV-8 actuators run about 6 seconds no load for the 5" stroke (at 12 volts). RV-10/14 about 12-13 seconds, same stroke. The difference is the motor gearing and max load. The RV-10/14...
Forum: RV Ongoing Maintenance Issues 08-13-2018, 10:33 AM
Replies: 10
Views: 2,770
Posted By Pat Hatch
10 amp breaker for the flaps

We recommend a 10 amp breaker for the flaps. Typically the flaps will draw a maximum of 5 amps under rated load, but if there's any binding in the flap linkage it can exceed this amount momentarily....
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