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Search: Posts Made By: koupster
Forum: Electrical Systems Yesterday, 07:17 PM
Replies: 23
Views: 598
Posted By koupster
6 Gauge

That wiring diagram that Paul vS sent shows 6 AWG feeding the main bus and also handling the alternator output. I think that would be appropriate for your ground wire.
Forum: Electrical Systems Yesterday, 07:08 PM
Replies: 23
Views: 598
Posted By koupster
You could total up all the airframe mounted...

You could total up all the airframe mounted electrical device loads and consult a wiring chart that takes into consideration the length of the wire involved, or you could match the wire that feeds...
Forum: Electrical Systems Yesterday, 06:40 PM
Replies: 23
Views: 598
Posted By koupster
The heavy wire should lead from the large post on...

The heavy wire should lead from the large post on the negative bus bar to the negative battery terminal. Sounds like the negative bus bar is adequately grounded to the subpanel.

2 gauge wire may be...
Forum: Electrical Systems Yesterday, 06:12 PM
Replies: 23
Views: 598
Posted By koupster
It appears from your post that the negative bus...

It appears from your post that the negative bus bar and the airframe have no dedicated ground path to the negative terminal of the battery. In this case, the airframe mounted electrical devices...
Forum: VAF Classifieds (posts in here deleted after 30 days) 02-17-2021, 05:01 PM
Replies: 12
Views: 1,014
Posted By koupster
Books

PM sent.
Thanks
Forum: RV General Discussion/News 01-30-2021, 10:11 PM
Replies: 30
Views: 2,926
Posted By koupster
Psychic

Originally Posted by PilotjohnS
Nice post but i think you spelled psychic wrong.

I thought it was a nice play on words.
Chicks are psychic, or maybe psychick.

A psychic is a person who claims to...
Forum: RV General Discussion/News 01-30-2021, 05:29 PM
Replies: 8
Views: 581
Posted By koupster
I put heat shrink tubing on the horizontal...

I put heat shrink tubing on the horizontal portion of my painted steps. It's been working well. I choose black to match my wing walk color. It's probably not as slippery as paint when wet, but no...
Forum: RV Ongoing Maintenance Issues 01-24-2021, 02:50 PM
Replies: 18
Views: 1,285
Posted By koupster
Ring Gear Interference

Suggest that none of your new nutplates line up with the ring gear.
I had one screw that was always hard to remove; I had to replace it regularly.
Turns out that it was getting peened over by the...
Forum: Safety 01-21-2021, 12:51 PM
Replies: 54
Views: 4,665
Posted By koupster
Wheel pant axle bolt

I put Nordlocks on the wheel pant axle bolts last time around. I can lie on my side and safety wire the brake caliper bolts rather easily, the Hartzell prop bolts are a minor aggravation, but the...
Forum: RV General Discussion/News 01-19-2021, 04:24 PM
Replies: 6
Views: 942
Posted By koupster
De-boost

Since you choose to get the old gauge from Colorado, I recommend a deboost element in the plumbing. They are commonly used in the brake systems of air transport aircraft to de-boost the aircraft's...
Forum: RV-12/RV-12iS 12-26-2020, 08:57 PM
Replies: 32
Views: 3,849
Posted By koupster
If you decide to heat the caliper, consider...

If you decide to heat the caliper, consider removing the piston first so the O-ring doesn't get damaged by the heat. It's a good time to upgrade to a viton O-ring if you haven't already.
Forum: RV-8/8A 12-26-2020, 05:09 PM
Replies: 9
Views: 946
Posted By koupster
Kit for 1" Axle Nut Wrench TOOL AXLE WRENCH $8.00

Light enough to carry in the plane.

https://shop.vansaircraft.com/cgi-bin/shop.cgi?ident=1609023726-62-753&browse=tools&product=axle-wrench
Forum: RV-12/RV-12iS 12-26-2020, 04:54 PM
Replies: 32
Views: 3,849
Posted By koupster
MATCO BRAKE BLEEDER VALVE ASSEMBLY - MSCBBS(S)ASY

https://www.aircraftspruce.com/catalog/lgpages/matco06-02801.php?clickkey=266883

Cheers, David
RV-6A KBTF
Forum: RV Building Tips/Techniques 12-02-2020, 05:12 PM
Replies: 29
Views: 2,088
Posted By koupster
Want low tech?

Set the prop control at 2400 RPM while in flight and leave it there through landing and shutdown. Make a removable stop block to match the exposed control rod length behind the back of the knob....
Forum: RV-12/RV-12iS 11-17-2020, 03:48 PM
Replies: 16
Views: 2,462
Posted By koupster
September. Don't think I've stabbed myself on the...

September.
Don't think I've stabbed myself on the gascolator safety wire (elsewhere, the answer is different).
I use the single wire technique on the gascolator screws. three of the four stretches of...
Forum: RV Ongoing Maintenance Issues 11-08-2020, 06:22 PM
Replies: 24
Views: 2,124
Posted By koupster
Serrated bread knife

You need a longer blade than an extendable snap off knife.
The edge of a filet knife will dull against the oil filter center.
The serrated knife will cut the heavy paper well.

Cheers, David
RV-6A...
Forum: RV Ongoing Maintenance Issues 11-03-2020, 05:00 PM
Replies: 4
Views: 864
Posted By koupster
I shop at Van's when I can

It may not be convenient for you in BC, but shopping at Van's takes a lot of the guesswork out of which part you need. Spruce has dozens of cotter pins. Van's has 14, and the chart tells you what...
Forum: Traditional Aircraft Engines 10-27-2020, 06:58 PM
Replies: 9
Views: 4,039
Posted By koupster
Lycoming parts manuals are free online

One could easily answer these questions by reference to the parts manuals.

https://www.lycoming.com/sites/default/files/O-320-D3G%20Parts%20Catalog%20PC-203-D3G.pdf

Pages 26 & 27 in this...
Forum: RV-10 10-22-2020, 04:48 PM
Replies: 18
Views: 2,936
Posted By koupster
Is this a good time to ask which rudder trim...

Is this a good time to ask which rudder trim option produces the least amount of drag per "unit" of rudder trim?
The internal option is the obvious winner, buy what's in second place, the fixed tab...
Forum: RV-10 10-12-2020, 04:29 PM
Replies: 24
Views: 3,219
Posted By koupster
I placed my temp sensor in the triangular space...

I placed my temp sensor in the triangular space between the flap brace and the rear spar near the outboard end of the flap. It's shielded from radiant heat from the ramp and gets airflow from the...
Forum: RV General Discussion/News 10-09-2020, 06:11 PM
Replies: 1,798
Views: 493,582
Posted By koupster
Vlad, Been using one like...

Vlad,

Been using one like...
Forum: Flight Testing 09-28-2020, 06:51 PM
Replies: 4
Views: 972
Posted By koupster
Koch Chart

Just use a Koch chart in reverse. Rather than starting with density altitude, one inputs pressure altitude and temperature. The chart gives you takeoff and rate of climb adjustments. If the chart...
Forum: RV Ongoing Maintenance Issues 09-28-2020, 06:21 PM
Replies: 4
Views: 1,198
Posted By koupster
Lycoming calls the AN900 annular copper-asbestos...

Lycoming calls the AN900 annular copper-asbestos gasket used to seal the plug that secures the oil suction screen a "Gasket, annular". These gaskets are tightened a certain number of degrees after...
Forum: RV Photo/Video URLs 09-14-2020, 03:12 PM
Replies: 13
Views: 3,684
Posted By koupster
Went to the Salt Flats just over a month ago to...

Went to the Salt Flats just over a month ago to crew for a land speed racer buddy. When I got back, I blew as much of the salt off my car as possible with compressed air to avoid turning it into salt...
Forum: RV General Discussion/News 08-30-2020, 11:20 PM
Replies: 26
Views: 5,052
Posted By koupster
OK; just reinstalled the baggage bin bulkhead...

OK; just reinstalled the baggage bin bulkhead today in the RV-6A. Did it all with both feet on the hangar floor. Tools used were a screwdriver with a lightly magnetized tip and a cordless drill with...
Forum: RV-14 08-23-2020, 12:56 PM
Replies: 5
Views: 1,253
Posted By koupster
Van's lightweight travel cover

I'm very happy with my Van's lightweight travel cover. Wouldn't want to carry a heavy cover that's meant for an airplane that lives outside for trips away from base.

Cheers, David
RV-6A KBTF
Forum: RV General Discussion/News 08-08-2020, 03:04 PM
Replies: 83
Views: 12,342
Posted By koupster
Elevators locked neutral for my RV. Again, don't...

Elevators locked neutral for my RV. Again, don't want to be in short field takeoff configuration(stick full back). Have seen tents plastered against fences in all compass directions at...
Forum: RV General Discussion/News 08-08-2020, 11:47 AM
Replies: 83
Views: 12,342
Posted By koupster
This RV-6A owner may have skewed the Oshkosh...

This RV-6A owner may have skewed the Oshkosh survey, since I raise my flaps if tied down outside and high winds are possible. High winds are actually probable during the week of Airventure. Don't...
Forum: Safety 08-02-2020, 07:34 PM
Replies: 64
Views: 15,802
Posted By koupster
Flutter depends on true airspeed

Here's the article on Van's website
https://www.vansaircraft.com/faq/horsepower-limits-why-not-a-turbocharged-higher-horsepower-engine/

Cheers, David
RV-6A KBTF
Forum: RV-4 07-30-2020, 07:04 PM
Replies: 3
Views: 826
Posted By koupster
Lightweight canopy cover

What's wrong with the one that Van's offers?
I'm happy with my RV-6 lightweight cover.

Cheers, David
RV-6A
Forum: West (and Southwest) 07-14-2020, 02:08 PM
Replies: 3
Views: 1,887
Posted By koupster
Hangar For Rent. BTF. Small Air Plane

https://classifieds.ksl.com/listing/60449412

Cheers, David
RV-6A KBTF
Forum: Safety 07-09-2020, 03:19 PM
Replies: 21
Views: 4,583
Posted By koupster
Frank, If you want to wear nomex and would like...

Frank,

If you want to wear nomex and would like to borrow a flightsuit, please post your size. I'll be glad to ship you mine if you'll return it when you're finished.

If mine won't fit you, perhaps...
Forum: Safety 07-09-2020, 11:28 AM
Replies: 21
Views: 4,583
Posted By koupster
Full Nomex apparel is probably what you're...

Full Nomex apparel is probably what you're thinking might be going overboard.

Consider all cotton clothing (socks, pants, and a long sleeve shirt) in at least a medium weight fabric. Cotton doesn't...
Forum: RV-14 07-05-2020, 03:23 PM
Replies: 34
Views: 8,088
Posted By koupster
Full dual controls

Installed a left side throttle in the RV-6, so now it has full dual controls (sticks, rudder pedals, brakes, and throttle controls). Wasn't all that much work, except for the fact that I fabricated a...
Forum: RV Building Tips/Techniques 06-30-2020, 06:26 PM
Replies: 10
Views: 1,953
Posted By koupster
I see radial scuffing around the holes. Are you...

I see radial scuffing around the holes. Are you holding the cage steady with the hand that's not holding the drill? Agree with the need for a backup for the pilot hole.

Cheers, David
RV-6A KBTF
Forum: RV Ongoing Maintenance Issues 06-29-2020, 03:39 PM
Replies: 22
Views: 3,465
Posted By koupster
Agree with the penetrating oil and heat. Try...

Agree with the penetrating oil and heat. Try heating an old Phillips screwdriver tip until it's red hot. Put it in the screw head and hold it there until it cools. Don't use this screwdriver as a...
Forum: RV-9/9A 06-09-2020, 02:05 PM
Replies: 16
Views: 2,042
Posted By koupster
I'm very happy with my carpet from Classic Aero....

I'm very happy with my carpet from Classic Aero. No vibrations from the floor ever. Closed cell foam pads Velcro to the floor between the stiffeners, and the carpet Velcros to the foam.

Cheers,...
Forum: Traditional Aircraft Engines 06-09-2020, 12:14 PM
Replies: 7
Views: 1,416
Posted By koupster
The weirdness: a vibration suddenly kicks in

The weirdness: a vibration suddenly kicks in at an IAS between 90 and 110 mph during the [i]first [i] of the day's take-offs. Nothing subsequent.

First flight only: I'd suspect a tire that has taken...
Forum: RV-10 05-27-2020, 04:58 PM
Replies: 17
Views: 1,617
Posted By koupster
Try...

Try https://www.harborfreight.com/motorcycle-wheel-balancing-stand-98488.html
Forum: RV-10 05-27-2020, 04:40 PM
Replies: 17
Views: 1,617
Posted By koupster
PITTSBURGH Motorcycle Wheel Balancing Stand

[QUOTE=cderk;1433883]Karl - havent tried it yet. I bought the bubble balancer from Harbor Freight... the other one wont work... I tried. its for wheels with a less than 1.5? hub.]

I used...
Forum: Glass Cockpit 05-22-2020, 10:16 AM
Replies: 73
Views: 6,285
Posted By koupster
AVARE

Been using Avare on a 7 inch Android tablet for several years and am very satisfied. It will do nav, ADS-B in weather and traffic, weight and balance, AHARS flight instrument display, etc. It...
Forum: West (and Southwest) 05-13-2020, 12:32 PM
Replies: 1
Views: 412
Posted By koupster
I recommend Bob Schroeder

He's a very knowledgeable and competent repeat RV builder, and the go-to guy for other area builders when they need advice or help. He may be able to bring an RV familiar A&P into the pre-buy if you...
Forum: RV General Discussion/News 04-28-2020, 12:38 PM
Replies: 1,798
Views: 493,582
Posted By koupster
Flap Switch Handle

Steve,

How about a flap switch handle such as:
https://www.aircraftspruce.com/catalog/appages/flaphandle.php?clickkey=4250076

If made in two pieces, it wouldn't have to rely on set screws to...
Forum: RV General Discussion/News 04-26-2020, 03:20 PM
Replies: 74
Views: 10,528
Posted By koupster
Smiley Creek Airstrip, Idaho

This Idaho Division of Aeronautics' well-maintained airstrip may dry out early because it's slope encourages drainage. I recommend it for its amenities and because the approach and departure is not...
Forum: RV Ongoing Maintenance Issues 04-20-2020, 07:22 PM
Replies: 21
Views: 3,063
Posted By koupster
LED with built in resistor

I'm using 12V LED Panel Indicator Lights like this: https://www.digikey.com/product-detail/en/visual-communications-company-vcc/5102H3-12V/5102H3-12V-ND/3150546

Cheers, David
RV-6A KBTF
Forum: RV General Discussion/News 04-14-2020, 10:07 AM
Replies: 74
Views: 10,528
Posted By koupster
Solo camping or with all the seats in your...

Solo camping or with all the seats in your airplane filled?

Cheers, David
RV-6A KBTF
Forum: RV General Discussion/News 04-07-2020, 01:59 PM
Replies: 21
Views: 3,617
Posted By koupster
Wink They're not moving for me either, but then we...

They're not moving for me either, but then we don't get Big Spruce Tag! You're It! IPA south of the border. Send me a 12 pack and I'll have another look at the hoses. ;);)

Cheers, David
RV-6A KBTF
Forum: RV General Discussion/News 03-16-2020, 02:01 PM
Replies: 16
Views: 3,764
Posted By koupster
If it's a long time before you get to fly again,...

If it's a long time before you get to fly again, you may wish to follow these Lycoming instructions for first start after any prolonged period of...
Forum: RV Ongoing Maintenance Issues 03-16-2020, 12:52 PM
Replies: 8
Views: 993
Posted By koupster
I've just completed the installation of two...

I've just completed the installation of two nutplates on a strip of sheet metal that was then fished into a small space with no direct access from the backside. However, I was able to see when the...
Forum: RV General Discussion/News 03-04-2020, 10:08 PM
Replies: 11
Views: 1,281
Posted By koupster
Have been flying dogs for Pilots N Paws in the...

Have been flying dogs for Pilots N Paws in the RV-6A.
Even small crates don't fit into the baggage area well.
Have settled on a tether that loops around the flap drive tube next to the floor and has...
Forum: RV General Discussion/News 01-23-2020, 12:55 PM
Replies: 21
Views: 2,668
Posted By koupster
Looking at the portion of the video after the...

Looking at the portion of the video after the descent from 1000' is commenced and before the flare for landing, pitch angle varies approximately 7 degrees while dealing with the gusty conditions. The...
Forum: RV-7/7A 01-09-2020, 12:19 PM
Replies: 11
Views: 1,701
Posted By koupster
Yes, Van's sells it. Buy one and a couple of...

Yes, Van's sells it. Buy one and a couple of spare O-rings to fit it.

Cheers, David
RV-6A KBTF
Forum: RV General Discussion/News 11-24-2019, 09:20 PM
Replies: 11
Views: 2,190
Posted By koupster
No alcohol or ammonia for plexiglass

Prestone Windshield Trigger De-Icer contains alcohol.

https://www.eaa.org/videos/5849156567001

Cheers, David
Forum: RV General Discussion/News 11-14-2019, 04:14 PM
Replies: 21
Views: 3,828
Posted By koupster
Flasher/WigWag

https://flyleds.com/products/#!/WigWag-module/p/127264155

Cheers, David
RV-6A- KBTF
Forum: Propellers 11-11-2019, 06:31 PM
Replies: 19
Views: 2,692
Posted By koupster
This from Hartzell Manual 115N: AIRWORTHINESS...

This from Hartzell Manual 115N:
AIRWORTHINESS LIMITATIONS
Propeller: HC-C2YR-1BF/F7666A-2Engine: Lycoming O-360-A1A rated at 180hp at 2700 RPM equipped with Lightspeed Plasma II electronic ignition...
Forum: Rocket 11-10-2019, 12:31 PM
Replies: 16
Views: 4,335
Posted By koupster
Semi-floating

I semi-floated the nose gear leg fairing. The bottom is clamped, and the top is secured by a double wrap of bungee cord. The idea was to permit some movement as the leg flexed, but prevent any...
Forum: Safety 11-01-2019, 10:35 AM
Replies: 14
Views: 4,428
Posted By koupster
Lint

Part of my A&P school involved two weeks working with an A&P who maintained a fleet for a university flight school. When he tasked me with opening and inspecting a gascolator, he told me that I'd...
Forum: RV Ongoing Maintenance Issues 10-23-2019, 10:02 AM
Replies: 22
Views: 4,796
Posted By koupster
Both - Repair and Replace

Order a new quick drain and a few o-rings from Van's.
Install the new drain, then repair the old drain and replace it in the other wing. Then repair that quick drain and keep it as a spare. I carry...
Forum: RV General Discussion/News 10-22-2019, 10:06 PM
Replies: 14
Views: 2,565
Posted By koupster
Slight thread drift

[ Heck, if you have Bluetooth to your phone, you can fly low and call the tower on your cell phone.

[/QUOTE]

Wondering how one might find tower telephone numbers for unfamiliar airfields while...
Forum: Electronic Ignition Systems 10-21-2019, 05:46 PM
Replies: 8
Views: 916
Posted By koupster
My 0-360-A1A will not fire when cold unless I...

My 0-360-A1A will not fire when cold unless I prime it with the primer or pump the throttle.
You might try a healthy shot of starting fluid right before cranking it. If it fires, that would point...
Forum: Electronic Ignition Systems 10-21-2019, 02:26 PM
Replies: 8
Views: 916
Posted By koupster
It's been running OK once started? Mag checks...

It's been running OK once started?
Mag checks OK?
If both answers are yes, I'd look somewhere other than the mags.

Do you have a manual push-pull primer?
If not, pumping the throttle WHILE CRANKING...
Forum: RV General Discussion/News 10-21-2019, 10:14 AM
Replies: 19
Views: 3,209
Posted By koupster
I made a tool to tighten these clamps some tears...

I made a tool to tighten these clamps some tears ago out of a piece of steel tubing. The tubing was heated, one end nearly flattened to fit the clamp, and the other was squared to fit a 3/8"...
Forum: RV-10 10-15-2019, 12:28 PM
Replies: 9
Views: 1,182
Posted By koupster
This from the MICHELIN® aircraft tire manual ...

This from the MICHELIN® aircraft tire manual https://www.faasafety.gov/files/gslac/courses/content/269/1100/4222_12Mair_CSM_Interactive.pdf :

8.4. Underinflation Wear (shoulder wear)
8.4.1. ...
Forum: RV-10 10-15-2019, 10:09 AM
Replies: 9
Views: 1,182
Posted By koupster
What air pressure was in the tires when you...

What air pressure was in the tires when you removed the wheel pants?

Cheers, David
RV-6A - KBTF
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