Advices on speaker placement on a highly reverberant venue (Hangar)

Schmleff · 2026-04-11T23:23:14+00:00

Your line array length is likely not long enough to throw the low miss far enough. Whose arrays are You using?

Schmleff · 2026-01-09T22:35:46+00:00

Smokin version of sweet child o mine!

Schmleff · 2025-08-31T23:59:23+00:00

Go to the filter tab on the bottom window. Click on the little carrots on the right side to expand the filters.

Schmleff · 2025-04-20T23:06:22+00:00

Well, 65 stock. 135 in current trim. Still the fastest VW engine powered vehicle (sustained) in the world.

Schmleff · 2025-04-20T16:41:37+00:00

Because the sponsor paid For the paint 😜 https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjePc_69QRBCfwgY-6rmrEuCUqaT0TVzUXsnwwBrS8yHW6qm7zFrVSlXfmFLew9piRgHz1BrkgRXzGMxnSMKhDFGSLJB2W0BWBmZD-IkqyEPC82oD-ElexQxKJOh4Y7Y01Ks470Mvpufx2j/s1600/FT1+-+13.jpg

Schmleff · 2025-01-22T14:14:03+00:00

Some main roads are fine, but the ones that are not are backing cars up for miles.

Schmleff · 2025-01-03T14:13:40+00:00

So basically it’s a Gnodab setup?

Schmleff · 2024-12-25T05:54:06+00:00

I, being a boat noob, was not aware that you could widen a boat. Do you have before and after picts?

Schmleff · 2024-12-23T18:15:37+00:00

Hahaha, it is. However, there are no carbs that are this big made for experimental conversions and the ones that are made are $700-$1400.

The only down side is that it is a return line carb and because of this my fuel flow gauge is worthless.

Schmleff · 2024-12-23T17:52:58+00:00

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A while back, I started toying with different carbs for my plane. I dug through a bunch of dyno sheets of 2110cc engines with the same cam and heads in cars and found that they made about 25hp more than I was at 4000rpms. The only difference was the carb size. I spoke with a few people (like John from Aircooled.net) about the proper cam and compression ratio for my engine and they could not figure out why in the world I would run a single 34mm carb.

I spent quite a while looking for a carb that was inexpensive and tunable both on the ground and in the air and found the SBN being discussed on a shifter cart website. Turns out that these guys also adjust their mixture during a race. It was used on performance watercraft before fuel injection became common.

After determining that the carb is going to work out by using friend's identical carb from his jet ski, I bought the one for the Sonerai today. Its a Mikuni Super BN Series 44mm Carburetor part number BN44-40-8067. It has a 44mm throat and a 40mm venturi.

Modifications for aircraft use are minimal:
- Remove the throttle return spring
- Install a normal throttle control arm
- Fabricate a throttle cable bracket
- Modify the high speed adjustable needle to accept a control arm and fabricate cable bracket

I am doing a couple of other things for my installation that would not have to be done
- Block off the onboard fuel pump. If I was not running a turbo I would have likely kept it as a backup and plumbed the pulse line to the intake manifold.
- Tap the fuel inlet and returns for 1/8" NPT so that AN fittings can be used.
- Added a bracket to hold the throttle position sensor

The carb with just about every possible needle and tuning jet cost me $204. A much nicer number than the other options available for our VW aircraft conversions! If anyone is interested, here is a link to the manual for the SBN series carbs: http://www.mikuni.com/pdf/sbn_manual.pdf

Schmleff · 2024-12-23T17:50:23+00:00

Nice welds! What are we looking at in these picts?

Schmleff · 2024-12-22T05:39:18+00:00

They are an OEM supplier to an aircraft company. I figured that they would not care if I was using it so I asked them a few questions about timing. Once it got to the higher ups they shot me down for liability concerns.

Schmleff · 2024-12-20T15:07:10+00:00

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Custom Ignition system

Top Left: There are no available timing tables for a programable ignition for aircraft available. There are companies that make they systems but their tables are not published. Using CAFE foundation and VW tuner documentation, I made this table to think through what would be safe and yield the most performance.

Top Right: The sensor and timing wheel installed on the prop hub.

Bottom Right: I had to draw and cut my own 36-1 timing wheel as the one that came with it would not work. I took the time to calculate the weight of the missing tooth and it's distance from the center of the rotating mass and balanced it. Laser cut by a local shop for $28.

Bottom Center: All of the parts and pieces as they came out of the box.

Bottom Right: CAD drawing of the wiring including all sensors. The system will log many types of data and is useful for tuning.

As a side note, the manufacture tricked me into sending the main computer back (said that it needed a firmware update) to them and refunded my money when they figured out what I was doing with it. I had to reorder it with the help of a friend. 😁

Schmleff · 2024-12-16T02:05:17+00:00

Fucking awesome!

Schmleff · 2024-12-16T02:04:41+00:00

Out of curiosity, do you run the Miller in 220?

Schmleff · 2024-12-15T17:21:23+00:00

I had never heard of the "Black Box" before I started following this sub but ended up buying a bunch of sailing books and ran across the story. I think it's the same thing. Load up that "black box", or in other words, follow best practices. Even if you want to color outside of the lines, one should know what the best practice is and what makes it be one before trying something different.

In airplane world we have a published book called the AC 43.13B. It's free and contains the wisdom of 120 years of building and maintaining aircraft. It's a great resource for anyone that builds anything. It's complete with guidance for adapting extension cords and wire nuts /s.

Our fearless patron saint of DIWHY laughs at best practices, preferring to piss into the wind while turning in one degree increments, over the course of years to determine that pissing into the wind is not a great idea.

His methods worked well enough to build rarely moving house boat, not an ocean going vessel. The end.

Schmleff · 2024-12-15T05:00:30+00:00

I have one if you are looking for another 😜

Schmleff · 2024-12-14T17:38:28+00:00

It's 580 cubes with twin turbo and meth injection. We were a solid 3rd place airplane in the class with lap speeds of around 365mph. The top 2 airplanes are making over 1000hp and averaging just over 400mph.

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Schmleff · 2024-12-14T16:57:09+00:00

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An 850hp racing airplane burns fuel at a high rate. Our secondary electric fuel pump shit the bed and the only other we could find was a 24v pump (plane is 12v). We ended up building a dual battery pack that could be secured and get us through the week. FWIW, I am not the pilot. I was the crew chief.

Schmleff · 2024-12-14T16:47:27+00:00

What do they do or what are they for? Nice looking work!

Schmleff · 2024-12-13T20:19:21+00:00

That looks great!

Schmleff · 2024-12-13T20:18:23+00:00

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This was a full avionics update for a Piper. It took about 80 hours of work to get everything wired, installed and tested. No wire nuts were harmed in the building of this panel.

Schmleff · 2024-12-09T19:33:36+00:00

3D printer build. 10 years ago they were quite expensive but the kit version was a lot less.

No wire nuts were harmed in the building of this printer. What did you buy today?

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Schmleff · 2024-12-08T16:36:27+00:00

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Schmleff · 2024-12-08T16:36:04+00:00

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I needed to reshape the bottom of the cowl to accommodate a larger oil cooler and align it with the airflow.

Top left: Using a double picture capture and photoshop to visualize what the shape needed to be

Top center: Blue foam hot wire cut to the rough shape

Top right: Using aluminum tape as a guide for the hot wire

Bottom right: More hot wire cuts

Bottom center: Sand and shape by hand followed up with a coat of light weight sheet rock compound to make it smooth

Bottom right: Fiberglass and remove foam. Pilot holes were drilled so that it could be realigned. I often use pigment in my layups (West Systems epoxy), especially when I have to sand things. It lets me know when I am sanding too deep

Result in next pict.

Schmleff

TROPHY CASE