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Search: Posts Made By: hevansrv7a
Forum: ADS-B 10-28-2019, 01:33 PM
Replies: 79
Views: 27,202
Posted By hevansrv7a
Success

My Echo which is mounted on the GRT Safe-Fly 2020 has now generated two or more PAPRs with no red boxes.

I forget what threshold setting was finally needed but it was 1000 or close to that. Uavionix...
Forum: GPS 10-11-2019, 07:09 AM
Replies: 7
Views: 1,965
Posted By hevansrv7a
It will not be legal for IFR

It's an in-between approval. Better than "var" such as a 496 but not legal for IFR. It does emit the standard (NMEA?) strings and can serve as a second GPS on the GRT stuff. Or that's what they told...
Forum: RV Building Tips/Techniques 09-30-2019, 04:02 PM
Replies: 3
Views: 858
Posted By hevansrv7a
I am 99.99% certain I did not have to move the...

I am 99.99% certain I did not have to move the fuel spider on my 7A, James cowl with plenum. BTW, I used Van's baffles and cut them down rather than building from scratch.
Forum: ADS-B 09-15-2019, 12:29 PM
Replies: 79
Views: 27,202
Posted By hevansrv7a
Told by whom? uAvionix? I may be wrong but I...

Told by whom? uAvionix?

I may be wrong but I think in this case that "baro altitude" is pressure altitude where the other choice is GPS or geometric altitude.
Forum: RV General Discussion/News 09-15-2019, 12:06 PM
Replies: 9
Views: 808
Posted By hevansrv7a
Flying in

It's under the Class Bravo for KDTW and very near the Canadian border. Get yourself the TCA chart for sure. Make sure to check for a TFR for Ford Field, Tiger Stadium, etc.

Depending on where you...
Forum: RV General Discussion/News 09-15-2019, 12:01 PM
Replies: 9
Views: 808
Posted By hevansrv7a
from a KDET veteran

I learned to fly there. I got my PSEL and Instrument ratings there. I kept my Moni, my C-150 and my RV-7A there. I built the 7A there. I only, finally, gave up on KDET a couple of years ago.

But for...
Forum: RV Ongoing Maintenance Issues 09-10-2019, 04:30 PM
Replies: 11
Views: 2,259
Posted By hevansrv7a
Good point, Ed. The last few times I did this I...

Good point, Ed. The last few times I did this I used a hardware store bolt that was just long enough to use all the threads and stick out a bit. No chance that way of bending it.
Forum: RV Ongoing Maintenance Issues 09-10-2019, 03:53 PM
Replies: 11
Views: 2,259
Posted By hevansrv7a
bottle jack?

I'm curious why nobody said he/she uses the jacking point that is built into the wing. The thread is for a standard hardware bolt if you don't have the ring tie downs.

I put the jack on a sturdy...
Forum: RV General Discussion/News 09-06-2019, 02:48 PM
Replies: 30
Views: 4,759
Posted By hevansrv7a
OK, Thanks. Asked and Answered

My CFI and I, having reviewed this thread have come to an agreement and I will be continuing to use the technique that everyone says is correct.

THANKS.
Forum: RV General Discussion/News 09-05-2019, 03:48 PM
Replies: 30
Views: 4,759
Posted By hevansrv7a
Question 7A take off technique question

I have been holding mild back pressure right from the start of the take off roll so as to unload the nose wheel before speed builds up.

I've been flying with a very knowledgeable CFI who keeps...
Forum: RV General Discussion/News 09-04-2019, 04:48 PM
Replies: 64
Views: 11,670
Posted By hevansrv7a
engineered vs implementation

While I was building the tail on my 7A a very experienced AI visited me and immediately saw a crack in a part.

I called Van's and got it replaced. My AI helper pointed out that the part's alignment...
Forum: Traditional Aircraft Engines 09-04-2019, 12:45 PM
Replies: 7
Views: 1,278
Posted By hevansrv7a
a caution about plug gasket CHT sensor

Not on an RV. I had a Moni with the KFM engine, used a plug gasket for the CHT sensor. Even with soldering, the vibrations were hard on the wires and breakage was common.

I don't know if this is a...
Forum: ADS-B 08-28-2019, 12:13 PM
Replies: 79
Views: 27,202
Posted By hevansrv7a
I would do it again, but..

In my case, using my iPhone 6s to configure it did not work at first and it cost me $100 at an avionics shop to figure out what was wrong. Search for my previous thread on this if you are curious.

I...
Forum: RV General Discussion/News 08-22-2019, 02:31 PM
Replies: 35
Views: 7,375
Posted By hevansrv7a
not a SkyBeacon

I have no idea. Mine is the echoUAT, not the SkyBeacon. Different product.
Forum: RV General Discussion/News 08-22-2019, 11:33 AM
Replies: 35
Views: 7,375
Posted By hevansrv7a
The latest from uAvionix tech support

Below here, find verbatim the email I received regarding my two red boxes on the public report. I want to draw your attention to the item #5 which apparently takes you to a secret page! My comments...
Forum: RV General Discussion/News 08-22-2019, 11:26 AM
Replies: 35
Views: 7,375
Posted By hevansrv7a
As a retired programmer and manager of...

As a retired programmer and manager of application development, I agree 100% that it's a very poorly developed/tested application in this case. Mine is also a 6s. There is no information (at least...
Forum: RV General Discussion/News 08-20-2019, 06:19 PM
Replies: 35
Views: 7,375
Posted By hevansrv7a
Almost success

I followed the recommendation to put the iPhone in airplane mode, close all app and then turn on only wifi. That worked. My Echo UAT is now configured and is correctly broadcasting my aircraft's ICAO...
Forum: RV General Discussion/News 08-18-2019, 04:09 PM
Replies: 55
Views: 8,253
Posted By hevansrv7a
There is a speed for best L/D that will give you...

There is a speed for best L/D that will give you best MPG at whatever altitude you are at but it's too slow for most of us most of the time.

The next best speed is Carson's which is approximately...
Forum: ADS-B 08-16-2019, 04:31 PM
Replies: 45
Views: 14,538
Posted By hevansrv7a
wire it - don't need to

I hope that I'm not misunderstanding the OP but the Echo UAT from uAvionix does not need to be wired to the GTX327.

I have both. I have NO wires connecting the UAT to anything...
Forum: RV General Discussion/News 08-15-2019, 01:10 PM
Replies: 35
Views: 7,375
Posted By hevansrv7a
Thumbs up Most of the solution has been reached

First,
Some comments were quite correct and others simply did not give me credit for having done the obvious. Also, it's not a SkyBeacon.

To make the rest of the long story short, the Echo UAT was...
Forum: RV General Discussion/News 08-13-2019, 08:38 AM
Replies: 35
Views: 7,375
Posted By hevansrv7a
Alll good ideas but all done already

When I talked to Detroit approach they where seeing both my ADS-B and my transponder and, obviously, were able to see that they were the same airplane. They were also seeing my correct altitude from...
Forum: RV General Discussion/News 08-13-2019, 08:32 AM
Replies: 55
Views: 8,253
Posted By hevansrv7a
Depends on what you mean by "sweet"

If you mean just for the engine, regardless of the overall effect on speed and economy then I suggest you look for some charts in the engine documentation. Specifically, I can offer the example of my...
Forum: RV General Discussion/News 08-12-2019, 09:00 AM
Replies: 35
Views: 7,375
Posted By hevansrv7a
Question ADS-B Public Report problem

I installed a uAvionix Echo UAT which was pre-mounted and pre-configured on a GRT Safe-Fly 2020 GPS.

It appears to be working correctly including via WiFi on an iPhone and an iPad on FlyQ and...
Forum: RV General Discussion/News 07-11-2019, 02:04 PM
Replies: 12
Views: 2,263
Posted By hevansrv7a
👍😀 Thank you.

👍😀 Thank you.
Forum: RV General Discussion/News 07-09-2019, 02:17 PM
Replies: 12
Views: 2,263
Posted By hevansrv7a
Got it. THANKS.

I think the step drill plus a little finesse with a deburring tool sounds good and I do have one or two!

Thanks to all.
Forum: RV General Discussion/News 07-09-2019, 08:56 AM
Replies: 12
Views: 2,263
Posted By hevansrv7a
Question Best way to drill .505" hole for antenna?

My plan right now is to use a step drill that goes up to 1/2" and just over-do it a bit, by hand.

Is there a better way?

13mm drill bit? (.512")

I have done this once before but I've forgotten how...
Forum: RV General Discussion/News 06-24-2019, 04:08 PM
Replies: 1
Views: 701
Posted By hevansrv7a
Hangars in or near Ft. Myers, FL?

I wrote to Page Field and they have a 6 year waiting list for T hangars. Anyone know of an option? Thanks in advance.
Forum: RV Ongoing Maintenance Issues 05-27-2019, 07:29 AM
Replies: 5
Views: 1,593
Posted By hevansrv7a
It happened to me and it did damage the trailing...

It happened to me and it did damage the trailing edge of the right wing because I did not see it in time. The solution was a small adjustment in the arm that lowers the flaps. Of course, that doesn't...
Forum: RV General Discussion/News 05-26-2019, 02:13 PM
Replies: 11
Views: 3,901
Posted By hevansrv7a
The question has been answered. THANKS.

The pilot for whom I asked the question has obtained the answers he needed. Thanks for the help.

h
Forum: RV General Discussion/News 05-25-2019, 01:05 PM
Replies: 11
Views: 3,901
Posted By hevansrv7a
Question Any first hand knowledge of RV7A 200# over gross?

I have been consulting with another pilot who is considering putting in extra fuel for a very long over-water flight in a 7A. He would need to fly 200 pounds over gross weight. Naturally, I'm not...
Forum: RV General Discussion/News 04-24-2019, 01:59 PM
Replies: 5
Views: 1,217
Posted By hevansrv7a
Question Has anyone used Innovation Aircraft Sales?

If you have, please describe your experience, either good, neutral or bad. If bad, feel free to PM me so as to avoid "vendor bashing". I will not pass on any negative comments, with or without...
Forum: RV General Discussion/News 08-25-2017, 05:46 PM
Replies: 10
Views: 3,534
Posted By hevansrv7a
Range

Well, don't count on a low-drag intake to increase your range much but it could help a little. That's not from increased MP, just lower pumping losses.

Assume a 42 gallon startup with maybe 40 by...
Forum: RV General Discussion/News 08-25-2017, 05:37 PM
Replies: 10
Views: 3,534
Posted By hevansrv7a
More than 1" over ambient at 200 mph

I can't compare to other setups but my 7A with Sam James cowl and air box, K&N filter, gives well over 1" greater than ambient at around 8000' DA and 200 mph.

My numbers are from many observations...
Forum: RV-10 09-30-2016, 09:35 AM
Replies: 5
Views: 1,925
Posted By hevansrv7a
picture of how I did it

This was my solution to the problem I had with my C-150 with all the switches where I could not even see them. The breaker/switches are on one piece of removable .063 aluminum and easy to get to from...
Forum: Propellers 08-22-2016, 12:35 PM
Replies: 64
Views: 28,667
Posted By hevansrv7a
re: Jack Norris

I second that. Jack is always interested in chatting with fellow aviators. I just sent him an email and a voice mail to draw his attention to this thread. He was at AirVenture this year and still...
Forum: RV Ongoing Maintenance Issues 08-11-2016, 09:08 AM
Replies: 25
Views: 5,838
Posted By hevansrv7a
There have been a few assertions that are, I...

There have been a few assertions that are, I think, meant to suggest that either I'm wrong about how (or how well) the dehumidifier works or even if there is a need. Most or all of those assertions...
Forum: RV Ongoing Maintenance Issues 08-09-2016, 04:04 PM
Replies: 25
Views: 5,838
Posted By hevansrv7a
dryness works data, sort of

search on "aviation boneyard".
example: https://en.wikipedia.org/wiki/Aircraft_boneyard
Thus I believe that the wide-spread claims have indeed been made, at least in that context and there's a lot of...
Forum: RV Ongoing Maintenance Issues 08-09-2016, 12:33 PM
Replies: 24
Views: 7,843
Posted By hevansrv7a
please see new thread on dehydrators

You don't have to wonder how much, just monitor the color of the indicator beads. Just to clarify, they don't "pull" air from inside the engine. Rather, they push dry air in. Ambient air varies a lot...
Forum: RV Ongoing Maintenance Issues 08-09-2016, 12:27 PM
Replies: 25
Views: 5,838
Posted By hevansrv7a
The beads that came with mine are, as noted,...

The beads that came with mine are, as noted, sprinkled with indicator beads which change color. The normal procedure is to put them in a low temp oven for a while until they turn fully blue again.

I...
Forum: RV-12/RV-12iS 08-08-2016, 06:36 PM
Replies: 4
Views: 3,012
Posted By hevansrv7a
up to you?

Let's assume that the ring is for emergency use in a situation where you have concluded the engine is going to remain silent and you want to find an airport ASAP. The airport you select must be...
Forum: RV Ongoing Maintenance Issues 08-08-2016, 05:25 PM
Replies: 25
Views: 5,838
Posted By hevansrv7a
Rust vs Us

I have posted regarding dehydrators before but I thought perhaps it would be best to isolate the subject and to offer some evidence that I think reasonably supports my assertion that we should use...
Forum: RV Ongoing Maintenance Issues 08-08-2016, 04:54 PM
Replies: 24
Views: 7,843
Posted By hevansrv7a
blow it out your..

I hope this is meant as a joke. The air in the crankcase is so humid it will yield precipitation when it cools. Each time you fly.

While a frequently flown plane is a good idea, the oil has mostly...
Forum: Traditional Aircraft Engines 08-08-2016, 04:47 PM
Replies: 15
Views: 3,252
Posted By hevansrv7a
Target EGT

Nigel is giving the best answer, IMHO. That terminology comes from the GAMI bunch. I have my target EGT pasted on my panel right next to my EFIS screen. I don't recall if he's using the method of...
Forum: RV Ongoing Maintenance Issues 08-01-2016, 09:07 AM
Replies: 24
Views: 7,843
Posted By hevansrv7a
Water, oil, heresy

I admit to being a heretic about this but why would you think that water won't evaporate at 170; why would you think it needs to boil? Also, that number for boiling is altitude dependent. Also, the...
Forum: Glass Cockpit 08-01-2016, 06:41 AM
Replies: 6
Views: 2,299
Posted By hevansrv7a
there's an app for that

Why not build your own using the checklist feature of Notes app?
Forum: Tools 06-23-2016, 09:23 AM
Replies: 11
Views: 4,547
Posted By hevansrv7a
The Egyptians knew how

When I had an addition built on my house the builder was doing the basic foundation and framing and used a very expensive, fancy digital/optical level. He got it about 1/4" wrong over about 30'. I...
Forum: Tools 06-23-2016, 09:17 AM
Replies: 11
Views: 4,547
Posted By hevansrv7a
Stanley Fat Max

I have several levels (apps) on my iPhone but only the Stanley among the free ones that I've found has the ability to be properly calibrated in the same way as my dedicated level. That is, you rotate...
Forum: Flight Testing 06-22-2016, 06:20 PM
Replies: 28
Views: 16,362
Posted By hevansrv7a
2 different responses in one

1. The whole x96 series through at least 496 do that. However, they are reporting the result of a calculation from sink rate and ground speed. Therefore the best use of that instrument for this...
Forum: RV General Discussion/News 05-04-2016, 09:48 AM
Replies: 35
Views: 10,284
Posted By hevansrv7a
humidity and corrosion

When you burn gasoline in air you produce a lot of water vapor as a normal and essential component of the exhaust. In all engines but especially in our air cooled ones, a significant amount of that...
Forum: RV General Discussion/News 05-03-2016, 05:17 PM
Replies: 35
Views: 10,284
Posted By hevansrv7a
Bill (and everyone), it could be and likely is...

Bill (and everyone), it could be and likely is true. However there is the analytical problem of a self-selected test group. In other words, someone who is willing to put expensive, scientifically...
Forum: RV General Discussion/News 05-03-2016, 05:13 PM
Replies: 35
Views: 10,284
Posted By hevansrv7a
some heretical thoughts on oil in aviation engines

1. If the problem you want to address is that you don't fly often enough then I suggest that regardless of the oil you use you'd be well advised to invest in an engine dehydrator. I won't go into...
Forum: Traditional Aircraft Engines 03-27-2016, 06:11 PM
Replies: 24
Views: 5,500
Posted By hevansrv7a
Not how you do it?

I'm rusty, but my recall says that the degrees EGT are not the correct way to know if they are peaking together. That's because each sensor's placement and the somewhat different characteristics of...
Forum: RV General Discussion/News 03-11-2016, 02:47 PM
Replies: 32
Views: 10,766
Posted By hevansrv7a
Easy check

First, I subscribe to the belief that the NTPS 3-way spreadsheet is best. Kevin Horton gave us that, I think. Thanks, Kevin.

However, GRT says to calibrate their instrument to TAS by finding a...
Forum: RV General Discussion/News 03-10-2016, 02:08 PM
Replies: 9
Views: 3,094
Posted By hevansrv7a
Question what makes it gyroscopic

I don't get it. What makes it gyroscopic vs previous battery powered screwdrivers?
Forum: Propellers 01-25-2016, 04:23 PM
Replies: 10
Views: 5,128
Posted By hevansrv7a
I might have one for sale

I have one with only a few hours on it that is just slightly too much prop for my 7A's 180 HP. If you have more HP it could be a very good prop.

I'm open to any fair offer.
Forum: Flight Testing 11-01-2015, 06:15 PM
Replies: 27
Views: 8,953
Posted By hevansrv7a
SFC suggestion

Finding SFC

1. Figure out how to read the Lycoming power charts including corrections for altitude and temperature. For me, this is the hardest part.

2. Pick a flight condition around 65% and make...
Forum: Flight Testing 11-01-2015, 06:00 PM
Replies: 27
Views: 8,953
Posted By hevansrv7a
CAFE and Carson

from: http://cafefoundation.org/v2/aboutcafe_orderfromchaos.php

(emphasis in red added by me)

Carson Speed: ?The Least Wasteful Way of Wasting?

Professor Bud H. Carson of the U.S. Naval Academy,...
Forum: Flight Testing 10-27-2015, 04:36 PM
Replies: 27
Views: 8,953
Posted By hevansrv7a
Carson's

Carson speed is usually expressed in CAS.

Carson defines it but in fact, it is 1.316 x V L/D max. This is well established.

My beef is with the difference between a Carson speed derived from zero...
Forum: RV Ongoing Maintenance Issues 10-06-2015, 04:54 PM
Replies: 26
Views: 6,501
Posted By hevansrv7a
But what about the valve cap?

My problem was that my SJ wheel fairings are so close to the tire that I can't get my fingers up in there to remove the valve cover (the little black rubber dingus to keep dirt out). I made one out...
Forum: RV General Discussion/News 09-13-2015, 09:41 AM
Replies: 35
Views: 6,466
Posted By hevansrv7a
IIRC 15-20 kts IAS for my 7A.

IIRC 15-20 kts IAS for my 7A.
Forum: RV General Discussion/News 08-30-2015, 12:15 PM
Replies: 33
Views: 6,670
Posted By hevansrv7a
no

I am working on an article about that but the short answer is "NO". The commenter that pointed out that the Garmin handhelds show glide ratio is also correct and that is a very good way to go as it...
Forum: RV General Discussion/News 08-30-2015, 09:14 AM
Replies: 11
Views: 4,057
Posted By hevansrv7a
flat drag curve?

I agree about AOA. How do you support the idea that an RV has a "flat drag curve"?

Induced does not follow the rules? Parasite? I don't get it.
Forum: RV General Discussion/News 08-30-2015, 09:07 AM
Replies: 33
Views: 6,670
Posted By hevansrv7a
CAFE numbers

CAFE's test for those numbers was with an idling prop, not stopped, not zero thrust and not windmilling.

If they had done a zero thrust test like they did with the 6A, in my mathematical opinion,...
Forum: RV General Discussion/News 08-30-2015, 08:26 AM
Replies: 33
Views: 6,670
Posted By hevansrv7a
best glide vs minimum sink

Yes, they are very different. In a no-thrust (not the same as zero thrust) situation, the speed for minimum sink will be approximately 76% of the speed for best glide. Said another way, best glide...
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