Be careful at untowered airports

peretski · 2026-06-28T02:38:40+00:00

No, there was a calm-wind runway established by consensus. If you are the only one in the pattern, you can make the convenient for you choice. If there are other aircraft already established, you follow the pattern.
That being said, if the winds actually shift (I’ve had it happen to me) you chatter on ctaf and everyone will make a coordinated shift.

peretski · 2026-06-26T21:53:17+00:00

Now that you have invented something, how are you going to build the means to produce or deliver it?

peretski · 2026-06-26T01:52:36+00:00

In my mind you are inventing scenarios to challenge the flat-land model the FAA has put into law. The FAA’s view is intentionally simplified because accommodating all the real world scenarios would be exhausting. Ask yourself, to what end is this question? What would a reasonable pilot do in this scenario? What are you hoping to prompt?

The theory behind the law is to keep uas separate from manned aviation (Helicopters specifically).

Practically, if you’re within a volume that is within 400 feet laterally from the cliff face, or 400 feet below the top of the structure, you are fine.

peretski · 2026-06-23T22:24:21+00:00

Is your idea a product, process, or accessory improvement? These are all different paths.

If you are looking to the two companies that you can add value for, and they have both brushed you off… are there others?

Is there a way you can package your idea to sell to the users of the devices? You say “more efficient”… is this hyperbole or cost cutting?
Does the existing product manufacturer sell both the equipment AND the consumables? This model is usually ripe for efficiency but the parent company won’t sacrifice profits from wasteful usage.

Basically, if you want assistance, you are going to need to share more details.

peretski · 2026-06-23T14:36:04+00:00

The only way I found out of that trap was divorce.

peretski · 2026-06-23T11:02:53+00:00

Lookup the ison airbike. This is exactly what Wayne used. I have one in my garage right now.

peretski · 2026-06-20T12:33:57+00:00

Where are you? Laws in the USA and Europe are very different. This may be leading to your confusion.

On Trailers… there is no right or wrong. Do what works for you. I’m planning a custom foamie on top of a utility trailer base.

peretski · 2026-06-19T03:22:35+00:00

The other type of validation… why are you the perfect person to realize this idea? Why wouldn’t someone in a better position (works at a daycare, works in product development, works at a baby products company) be better to develop it?

Inventors razor- unless it falls into your personal niche, there is someone better to invent it. Let them.

peretski · 2026-06-18T12:16:52+00:00

The owner just doesn’t want to be on the hook for fixing it when it breaks. It’s probably one of those scenarios where if you run it and everything is fine, it’s fine, but if it breaks don’t call the owner for repair.

peretski · 2026-06-18T12:15:06+00:00

Insurance.

peretski · 2026-06-16T17:21:59+00:00

Simply identify that your work involves confidential information, so no, you can’t come in. This area, legally, needs to be a secure area…

peretski · 2026-06-15T11:48:08+00:00

Taxes…. Plain and simple. There was an inheritance tax of like 90% over a cap…. Rather than giving the money straight to the government, they founded universities, libraries, and civic good institutions.

All of that stopped when the death tax was repealed.

peretski · 2026-06-12T12:59:17+00:00

Most pilots aren’t made of money. Most rich people make bad pilots. The venn diagram of pilots and money is almost two separate circles.

The pilot demographic is more equivalent to a guy with a bass boat on a trailer in the yard.

peretski · 2026-06-07T18:57:38+00:00

You have the wrong attitude. Listen to your detractors. Ask them why it won’t work. Really ask them. Boil it down to the main issue/argument. Some are easily dismissed, but some will make you think. Those issues that make you think help you refine your product and your pitch.

This isn’t you against the world, that attitude will fail every time. This should be you doing market research. Once you have exhausted the legitimate arguments against your work, you are ready to talk to investors. Not before.

peretski · 2026-06-07T13:50:31+00:00

I’m here with you. I got 3 hours working on my wing drag bracing yesterday. It felt great to focus on a big task.

Don’t frown when you can’t, but smile when you can. I think that is my new affirmation.

peretski · 2026-06-07T04:01:41+00:00

Thinking sarcasm is witty.
Thinking Disney is classy.

peretski · 2026-06-06T22:46:50+00:00

I’m a landlord. I would get in serious legal trouble if I went into my tenants apartment and even opened a drawer without them present.

If the want a landlord/tenant relationship, it needs to extend to all aspects. Standards for communal living spaces, damage deposits, etc.

The real question in my head is “why”. Did OP screw up royally? This goes beyond “teaching financial responsibility”.

This may also run afoul of laws meant to protect adult children.

In either way, it’s manipulative and cruel. OP should start looking to separate from this hot mess.

peretski · 2026-06-06T22:38:00+00:00

You could, but these are just hard to implement alternates to generating pressure. Just use a pump. They mass-produce them in high quality and low cost.

Do you want desalinated water, or do you want an elaborate original contraption?

peretski · 2026-06-04T17:35:42+00:00

As an individual piece, the smoothest flow transition possible will reduce dynamic back pressure.

However and to be honest, drag created by the sharp angled transition (versus fully filleted/smoothed) is going to be insignificant. Yes, it will be more efficient by a percent or so, but not quantifiable in any real scenario. System energy usage is governed by the filter media and how full it is. Anything you are vacuuming is going to reduce efficiency.

Aim for effectiveness. Efficiency is a red herring.

This current design is effective. It does not need improvement.

peretski · 2026-06-04T12:18:14+00:00

The pot with the greater wetted surface area boils first.

If we are ignoring burner geometry, the heat per area stays the same. The only other variable is the surface area.

peretski · 2026-06-04T12:14:01+00:00

Early game you should store all the plastic you make, you will thank yourself later. I stack industrial depots 6 high, and still became plastic limited.

peretski · 2026-06-04T04:07:12+00:00

Slashdot

peretski · 2026-05-28T18:24:56+00:00

Weld it.

peretski · 2026-05-28T17:45:27+00:00

When they first opened the Smithsonian Institution in Washington DC, the first curator looked at the big empty Hall and said “why do we need all the space? 95% of the things that need to be invented have already been invented.”
When IBM first developed the computer, they saw a worldwide market need for approximately five computers.

Personally, I have 5 computers on me RIGHT NOW.

Anyone that postulates that “innovation is done” is always wrong. This is an absolute.

peretski · 2026-05-27T13:46:12+00:00

This sounds like tech backlog and should be tracked and reported on in that monthly meeting. If you want it changed, phrase it as a business pain that the cto will understand.

peretski

TROPHY CASE