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Search: Posts Made By: sahrens
Forum: RV Friends Who Have Passed On 12-08-2019, 10:46 PM
Replies: 93
Views: 3,662
Posted By sahrens
Tom, You are in our thoughts and prayers. ...

Tom,

You are in our thoughts and prayers.

Scott and Julie
Forum: Painting your RV 11-20-2019, 02:42 PM
Replies: 15
Views: 1,575
Posted By sahrens
Vinyl

As for durability the vinyl on my aircraft is starting to show some wear after three years. But I wrapped my aircraft with an expectation of replacing it every four years or so. It cost me $3,000...
Forum: VAF Classifieds (posts in here deleted after 30 days) 11-09-2019, 11:20 PM
Replies: 5
Views: 1,101
Posted By sahrens
PM sent for alternators and regulators

PM sent for alternators and regulators
Forum: RV-7/7A 10-25-2019, 03:38 PM
Replies: 38
Views: 3,222
Posted By sahrens
That is what I did, sit inside and start reaching...

That is what I did, sit inside and start reaching for switches.
Forum: RV-7/7A 10-18-2019, 08:48 AM
Replies: 14
Views: 1,515
Posted By sahrens
Talking There are two ribs supporting the panel, how does...

There are two ribs supporting the panel, how does their locations affect your design? Sufficient space behind the panel for monitor depth and location of the rib attaching screw.

Recommend you...
Forum: RV General Discussion/News 10-17-2019, 03:35 PM
Replies: 44
Views: 5,718
Posted By sahrens
I imagine you have started to figure some of this...

I imagine you have started to figure some of this out. The collection of push on connectors is probably your "forest of tabs" for ground wires. The photo is just fuzzy enough I can't make out the...
Forum: RV General Discussion/News 10-17-2019, 08:28 AM
Replies: 44
Views: 5,718
Posted By sahrens
That circuit board looks like the dimmer control...

That circuit board looks like the dimmer control panel. Some of the wires have been numbered, any reference material come with the plane? It looks worse than it is, you will have it straightened...
Forum: RV General Discussion/News 10-09-2019, 02:39 PM
Replies: 33
Views: 3,481
Posted By sahrens
I tried to finish as much of the panel wiring as...

I tried to finish as much of the panel wiring as I could before putting the wings on the last time. It is much easier to walk around and stand next to the forward part of the fuselage without the...
Forum: RV General Discussion/News 09-24-2019, 09:01 AM
Replies: 16
Views: 1,954
Posted By sahrens
Central Cylinder in Omaha, NE. Maybe too far for...

Central Cylinder in Omaha, NE. Maybe too far for you but they do excellent work.

http://www.centralcylinder.com
Forum: RV Ongoing Maintenance Issues 09-22-2019, 06:13 PM
Replies: 47
Views: 4,313
Posted By sahrens
If you are considering changing lines I have...

If you are considering changing lines I have flexible brake lines made by TSFlightlines for RVs. I do not have any noise.
Forum: ADS-B 09-22-2019, 03:03 PM
Replies: 25
Views: 3,119
Posted By sahrens
Have it your way. Iím fine with that. Now back...

Have it your way. Iím fine with that. Now back to RVs
Forum: ADS-B 09-22-2019, 12:11 PM
Replies: 25
Views: 3,119
Posted By sahrens
Ok have it your way. Military aircraft launched...

Ok have it your way. Military aircraft launched during a national emergency is not an example of normal operations of military missions flown in national airspace. During 9/11 all airspace rules...
Forum: ADS-B 09-22-2019, 10:10 AM
Replies: 25
Views: 3,119
Posted By sahrens
Well one more example is in order, TFRs. ...

Well one more example is in order, TFRs. Restrictions established to prevent all but authorized aircraft to enter. Surely you are not supporting the notion that military aircraft are exempt from...
Forum: ADS-B 09-21-2019, 11:25 PM
Replies: 25
Views: 3,119
Posted By sahrens
Some do and some donít

For example if you look at 91.175 and 176 you will see language that specifically excludes military aircraft. In some cases the wording is except public aircraft. If you go to FAR 1 you will see...
Forum: RV General Discussion/News 09-21-2019, 05:06 PM
Replies: 1,158
Views: 276,244
Posted By sahrens
Lightspeed Zulu 3

Any chance of getting something like this for Lightspeed Zulu 3 headsets?
Forum: RV General Discussion/News 09-01-2019, 02:21 PM
Replies: 10
Views: 1,212
Posted By sahrens
I recommend punching a correct size hole in a...

I recommend punching a correct size hole in a square or rectangular piece of stainless and riveting it over the entire heating hole. Put a good coat of your choice of fire seal between the...
Forum: RV General Discussion/News 08-13-2019, 04:15 PM
Replies: 31
Views: 2,719
Posted By sahrens
Thanks Scroll, I have insulated the battery box...

Thanks Scroll,

I have insulated the battery box with a heat barrier and that caused about 10-15F decrease measured at the battery. The insulation on the EarthX box looks thicker but I donít know...
Forum: RV General Discussion/News 08-11-2019, 03:01 PM
Replies: 31
Views: 2,719
Posted By sahrens
As well as TSO for certified aircraft

https://earthxbatteries.com/product-category/certified-aircraft
Forum: RV General Discussion/News 08-07-2019, 10:35 PM
Replies: 31
Views: 2,719
Posted By sahrens
I made a few changes and they are documented on...

I made a few changes and they are documented on my build log located here

http://www.mykitlog.com/users/display_log.php?user=sdahrens&project=248&category=0&log=273403&row=1

With the pending...
Forum: RV General Discussion/News 08-06-2019, 06:46 PM
Replies: 31
Views: 2,719
Posted By sahrens
Recording temps

Are you recording temps surrounding the battery? It would be interesting to know if a very focused 1" blast tube is sufficient or if the battery box cover adds significantly to the cooling...
Forum: RV General Discussion/News 08-06-2019, 05:10 PM
Replies: 31
Views: 2,719
Posted By sahrens
Heat soak

Yes it is ineffective after shutdown. After refuel and restart it represents a starting point (heat soaked battery) that needs to be addressed by airborne airflow. Which is why the question, what...
Forum: RV General Discussion/News 08-06-2019, 04:47 PM
Replies: 31
Views: 2,719
Posted By sahrens
EarthX blast tube

I have an EarthX 680 installed on the firewall of my RV-7. It has a dedicated blast tube for cooling (5/8"). I live near the coast so the OATs are pretty mild compared to the midwest. On my flight...
Forum: RV-8/8A 07-14-2019, 08:50 PM
Replies: 11
Views: 1,731
Posted By sahrens
Not an RV-8

Here is my Sikaflex process for my RV-7. Hopefully it answers some of your questions. Scroll down a bit to get to the main...
Forum: RV General Discussion/News 07-09-2019, 07:13 PM
Replies: 34
Views: 7,194
Posted By sahrens
Your fire rate is a little slow. I suggest...

Your fire rate is a little slow. I suggest upgrading to a .30 cal or just mount a mini gun. Accuracy requirements go down with the mini gun fire rate.
Forum: RV-7/7A 06-26-2019, 08:49 AM
Replies: 7
Views: 911
Posted By sahrens
Hat channel

When installed my radios the hat channel interfered with the installation. I had to cut an opening in the sub panel due to the length of the radios and their harness. That included cutting some of...
Forum: Polishing your RV 06-23-2019, 06:04 PM
Replies: 17
Views: 10,979
Posted By sahrens
another season of getting ready

It does take a little less time on subsequent polishing, it must be a madness

http://i68.tinypic.com/98ulua.jpg
Forum: RV General Discussion/News 06-21-2019, 08:25 PM
Replies: 3
Views: 920
Posted By sahrens
Found at O69 Petaluma

The airport found this at the run up area on Friday morning (6/21). Not that it had to come from an RV but thought I would post it here.

http://i65.tinypic.com/2qmn4zs.jpg

Send me a PM if you lost...
Forum: Electronic Ignition Systems 06-06-2019, 06:05 PM
Replies: 100
Views: 24,041
Posted By sahrens
Not really much of an installation, but is a...

Not really much of an installation, but is a quick photo

http://i65.tinypic.com/axgpzb.jpg
Forum: RV-7/7A 06-06-2019, 06:01 PM
Replies: 7
Views: 1,311
Posted By sahrens
I have a similar panel to Dan's. It seems to be...

I have a similar panel to Dan's. It seems to be a common method although Dan's appears to particularly well done. If I had to do it again I would make the bottom of the tray removable from the...
Forum: Electronic Ignition Systems 06-04-2019, 09:04 AM
Replies: 100
Views: 24,041
Posted By sahrens
I used aluminum tape to secure it to the...

I used aluminum tape to secure it to the firewall. Itís been there for over a year without coming off. The thermocouple is small and weighs next to nothing.
Forum: Electronic Ignition Systems 06-03-2019, 10:13 PM
Replies: 100
Views: 24,041
Posted By sahrens
While not exactly what you are looking for, the...

While not exactly what you are looking for, the Dynon EMS system comes with a carbuerator thermocouple to monitor carb temps for icing. I used that to monitor the Earthx battery temperature in my...
Forum: RV-7/7A 05-31-2019, 06:44 PM
Replies: 7
Views: 1,311
Posted By sahrens
Hi David, I have the dual ADAHRS, the servo, the...

Hi David,

I have the dual ADAHRS, the servo, the strobe power pack and the ELT just aft of the baggage bulkhead. My RV-7 with CS has an aft CG such that I limit my baggage to 85 lbs. What you are...
Forum: RV-7/7A 05-30-2019, 08:39 AM
Replies: 6
Views: 1,281
Posted By sahrens
Congratulations. You are getting really close to...

Congratulations. You are getting really close to flying!
Forum: RV General Discussion/News 05-29-2019, 09:09 AM
Replies: 18
Views: 2,362
Posted By sahrens
Sorry it disagree but the sound of a helicopter...

Sorry it disagree but the sound of a helicopter never gets old.
Forum: RV-7/7A 05-28-2019, 10:21 PM
Replies: 17
Views: 4,840
Posted By sahrens
I agonized over this on my RV-7 and I decided to...

I agonized over this on my RV-7 and I decided to not mount very much back there. What I did put behind the baggage compartment is the Dynon dual ADAHRS, the pitch servo (of course), a Dynon hub and...
Forum: Electronic Ignition Systems 05-24-2019, 09:03 PM
Replies: 20
Views: 2,463
Posted By sahrens
I made that harness. Although I could have done...

I made that harness. Although I could have done two harnesses; one for the P-Mag to D-sub and one a D-sub to the laptop,as I did not intend to change the advance once it was set that seemed a lot of...
Forum: Electronic Ignition Systems 05-17-2019, 10:08 AM
Replies: 20
Views: 2,463
Posted By sahrens
Wiring

I wired my P-Mag as their manual suggests with a separate switch. Here is an image of that setup.

http://i68.tinypic.com/118g51e.jpg

It is easy to use and test the P-Mag.
Forum: RV-7/7A 05-15-2019, 09:34 PM
Replies: 19
Views: 1,989
Posted By sahrens
wait

Someone advised me to wait to drill holes in the firewall until the engine was mounted, that way I could see the conflicts. I decided not to wait and regretted it.

If you can, wait.
Forum: Electronic Ignition Systems 05-15-2019, 09:27 PM
Replies: 20
Views: 2,463
Posted By sahrens
O-360 Pmag on the right

Your set up is just like mine, except I put in a second toggle switch to handle the test function. I mounted the test switch just below the P-lead switch for the P-Mag.
Forum: RV Building Tips/Techniques 04-23-2019, 08:40 AM
Replies: 7
Views: 1,479
Posted By sahrens
Eyeball

One of the advantages of the eyeball pass through is "leading" the cable in a specific direction and help get around stuff.

http://i68.tinypic.com/29l05fq.jpg

To answer your question directly you...
Forum: RV Building Tips/Techniques 04-19-2019, 07:59 PM
Replies: 7
Views: 1,479
Posted By sahrens
I used the same eyeball passthrough as BillL...

I used the same eyeball passthrough as BillL posted. Someone posted a method using a steel bolt, center drilling it to the OD of the cable and using large washers and a nut as a method for...
Forum: RV General Discussion/News 04-11-2019, 08:31 PM
Replies: 4
Views: 674
Posted By sahrens
You didnít mention lighting, so Iíll add wing tip...

You didnít mention lighting, so Iíll add wing tip lights and landing/taxi lights. If you are planning on running wiring to the wing tips most folks install some form of conduit. Easier to install...
Forum: Safety 04-10-2019, 10:55 PM
Replies: 22
Views: 4,156
Posted By sahrens
I agree with the statement about "who did the...

I agree with the statement about "who did the overhaul". If the engine was overhauled to factory new limits by a reputable engine shop than every component was inspected to ensure it meet "new"...
Forum: RV General Discussion/News 03-28-2019, 05:55 PM
Replies: 34
Views: 4,415
Posted By sahrens
Screen size

I have AFS 5500T in my RV-7, everything on the backside is Dynon. As many have already written I liked the look and feel of the AFS screen over Dynon's. The one factor that pushed me to AFS was...
Forum: Traditional Aircraft Engines 03-23-2019, 06:12 PM
Replies: 36
Views: 6,219
Posted By sahrens
Questions

I have been reading your posts and I have a couple of questions.

In your initial post you wrote

"Had a prebuy conducted and no issues were noted at purchase.

Almost immediately fuel burn went to...
Forum: RV-7/7A 03-20-2019, 09:15 PM
Replies: 7
Views: 1,295
Posted By sahrens
There are more than a few threads here on VAF...

There are more than a few threads here on VAF discussing this process. I converted my slow build RV-7A to a 7 as I was riveting the fuselage together. I had to remove the F-712 bulkhead (the last...
Forum: RV General Discussion/News 03-18-2019, 08:28 AM
Replies: 18
Views: 2,063
Posted By sahrens
Spacing

I followed the spacing described in this thread

http://www.vansairforce.com/community/showthread.php?t=74619&highlight=skybolt
Forum: Electrical Systems 03-14-2019, 06:53 PM
Replies: 12
Views: 1,272
Posted By sahrens
Advanced Flight

I went with Advanced Flight EFIS devices. The IBBS is wired directly to the AFS EFIS for control and the EFIS manages switching the power source from the main system power to the IBBS in the event...
Forum: RV-7/7A 02-26-2019, 11:29 AM
Replies: 14
Views: 2,116
Posted By sahrens
I used the Van's numbers as listed in the build...

I used the Van's numbers as listed in the build manual and web site. We discussed the numbers as a starting point for test flight. You won't be able to verify all the numbers on the first flight. ...
Forum: RV-7/7A 02-24-2019, 05:26 PM
Replies: 14
Views: 2,116
Posted By sahrens
I have not seen it listed as a requirement, but...

I have not seen it listed as a requirement, but the DAR did ask to see mine.
Forum: RV-7/7A 02-24-2019, 05:11 PM
Replies: 52
Views: 6,162
Posted By sahrens
Two comments. You posted "We were able to jump...

Two comments. You posted

"We were able to jump the power to the avionics and it still works , just not from the switch."

which implies you pulled power from somewhere and bypassed the avionics...
Forum: Tools 02-23-2019, 07:22 PM
Replies: 34
Views: 3,263
Posted By sahrens
Other bolts

I have that CDI torque wrench and it works very well. However it maxes out at 12.5 ftlbs (150 inlbs). So you would need a second torque wrench for higher torque requirements. For example ...
Forum: Reviews 02-18-2019, 09:20 AM
Replies: 65
Views: 14,903
Posted By sahrens
Independent volumue control

I would like to suggest independent volume control for each side as a future feature. I have hearing loss, more in the left than the right. It would be great to control the volume independently for...
Forum: Polishing your RV 01-25-2019, 08:54 AM
Replies: 5
Views: 1,434
Posted By sahrens
Microfiber

I have used the blue microfiber towels sold by PerfectPolish

https://www.perfectpolish.com/microfiber/

If you really bare down on the towel they might make a mark, but used lightly I have not...
Forum: Reviews 01-14-2019, 09:20 PM
Replies: 65
Views: 14,903
Posted By sahrens
I just received my set today. I will give it a...

I just received my set today. I will give it a try in a few days when the weather clears up a bit. The headset does not use the same speaker system (CEP) I used under my Army helmet. The CEP...
Forum: RV-7/7A 01-08-2019, 09:11 PM
Replies: 20
Views: 3,045
Posted By sahrens
Print it

I would suggest printing your panel layout full size and put it in your aircraft. I printed my layout and sat in the aircraft reaching for toggle switches, looking at the screens, etc. Make sure it...
Forum: RV General Discussion/News 01-06-2019, 06:16 PM
Replies: 15
Views: 2,390
Posted By sahrens
Here is one...

Here is one company.

http://www.mykitairplane.com/product_pages/rvak/index.htm
Forum: RV General Discussion/News 01-06-2019, 12:18 PM
Replies: 5
Views: 763
Posted By sahrens
RV Plastic parts

Steve Melton, a member on VAF, sells a removable cover for the RV-14. I don't know if it will fit a RV-7 but you could ask...
Forum: Glass Cockpit 12-25-2018, 09:37 PM
Replies: 54
Views: 10,745
Posted By sahrens
When mine was acting up I started thinking about...

When mine was acting up I started thinking about a wiring issue between the Red Cube and the Dynon EMS. On the phone with tech support they mentioned a quick way to test the wiring is to ground the...
Forum: RV General Discussion/News 12-21-2018, 09:49 PM
Replies: 8
Views: 1,098
Posted By sahrens
Spacing

I used this thread for spacing and used three "floating" receptacles at the curved section of the cowling.

http://www.vansairforce.com/community/showthread.php?t=74619&highlight=skybolt+installation
Forum: RV General Discussion/News 12-12-2018, 05:52 PM
Replies: 12
Views: 2,306
Posted By sahrens
Fairings

Mine took a small amount of fitting, but out of the box this was miles ahead of the one I got from Vans

http://i66.tinypic.com/10gck9l.jpg

http://i68.tinypic.com/4sxws7.jpg
Forum: RV models of the future (RV-??) 12-05-2018, 07:26 PM
Replies: 62
Views: 12,390
Posted By sahrens
Have an RV-7, building a Bearhawk Patrol .

Have an RV-7, building a Bearhawk Patrol
.
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