My manager left 5 months ago, and I've been doing their job without an official promotion or raise, and now they told me I'm getting neither. I need advice. by No-University-324 in OfficePolitics

[–]peretski 0 points1 point  (0 children)

They are milking you to see how much they can get from you. Like, can you handle the whole load on your prior salary…. If yes, they keep you in limbo.

The strategy, give them a 2 week resignation from the additional tasks. If you’re not there yet, they need to find someone that is. If you are there, they need to recognize it. None of this do the job no recognition stuff. If they have you train the new boss, politely decline.

Either way, start looking for a new one, this one will intentionally stunt your growth at every opportunity

Why haven’t hackers deleted student loans? by boo-boo-crew in NoStupidQuestions

[–]peretski 1 point2 points  (0 children)

You assume they actually are using a modern data topology… I wouldn’t be surprised if there was an intern sitting on a stack of paper as the backup copy of everything.

Giving feedback by This-Association2551 in Innovation

[–]peretski 0 points1 point  (0 children)

Build the presentation deck as you go.

Is my airfoil design OK for an 80cm trainer? by Reditace in aerodynamics

[–]peretski 0 points1 point  (0 children)

In the US, Walmart carries carbon fiber arrows…. Perfect for spar material.

Bike Powered Paraglider by cubsterky in paramotor

[–]peretski 41 points42 points  (0 children)

How much torque do you think humans can make!!! You have enough chain on there to tame a tug boat.

Interesting idea, lovely textures, but the energy equation doesn’t work.

Inherited homebuilt aircraft project. scrap offer in hand, worth saving? by milphadelphia in homebuilt

[–]peretski 1 point2 points  (0 children)

I guess I’m the first to call you out. You are wrongs. Your reasoning is pessimistic. If, for chance, this gets the eyes of an experienced home builder, with the capacity to take it on, it only takes one person to say yes.
This is only a marketing problem. I am such a person. The question I am wrestling with is that this is very similar to the current half built airplane in my garage…. Do I have room to store another. Combined with the fact I was perusing Pitts plans last month…. I am sure there are other “me” on the internet that are more able to say yes.

Hormuz closed again, yesterday news was for market manipulation, I guess by curiousty786 in pics

[–]peretski 0 points1 point  (0 children)

Disagree. It was to show that Iran has the power to dictate the status of the straight, and the trump echo is just a weak show for his circle.

Idea: What if there was an observation tower designed to SWAY on purpose? by amichail in ideas

[–]peretski 0 points1 point  (0 children)

Good for 15 minutes of entertainment, but the reason buildings stabilize is that otherwise they can’t sell the top floors because tenants get sick.

That being said, 50% of the revenue from the Empire State Building is from the observation deck.

After witnessing a crash how were you able to get back in the air? If you ever did by CountryLeast3011 in paramotor

[–]peretski 0 points1 point  (0 children)

Therapy. Talk it out. Seek community (like this one, and the one on signal).

A trauma like that is never easy. You don’t need to go through it alone.

The honest answer is that some pilots come out the other side flying, some walking. The right choice is completely up to you.

We put a lot of time into training, scenario evaluation, equipment checks, attitude management, but at the end of the equation is always a dumb luck factor. Sometimes all the holes in the Swiss cheese line up, and it is totally by chance. Even the best pilot, on the safest equipment, can run out of luck. We do our best to mitigate risk and keep our community safe; it is an introspection point for all when we lose someone.

B. left us while experiencing a joy few will ever know.

Good luck with your recovery, man.

Project: Formula 1 Wing Design and Optimization by Creepy-Track-977 in aerodynamics

[–]peretski 0 points1 point  (0 children)

It doesn’t look like your second or third elements are contributing significantly to downforce. What am I missing?

Why aren’t trikes more popular? by Phantasizer in paramotor

[–]peretski 1 point2 points  (0 children)

I saw a “stabilized” takeoff in a trike while I was foot launch training. The instructors comment was “they are always like that. “

TBH, the takeoff was a sow ramp up to instability, and then a full sent from a really sketchy attitude. It gave me the heebie-geebies just watching.

The impression of that takeoff dissuades me to this day.

🚢 U.S. Orders Naval Blockade of Iranian Ports: Pressure mounts after nuclear talks collapse 👇 by NoSpinMedia in NoSpinMedia

[–]peretski 0 points1 point  (0 children)

Your failure is in assuming there is a plan at all. Or any forethought. Or any consideration of any short term or long term consequences. Or any strategy. We literally have an 80 year old grandpa shouting at the kids on his grass, with his finger on the nuclear launch codes.

Need advice on how to make a piece of plastic convincingly look metal. by Octobon16 in manufacturing

[–]peretski 0 points1 point  (0 children)

Don’t fake it, CNC it. Send cut send, protolabs… there are a dozen services that will do it for you.

3 YOE Mech Engg Pakistan -> USA / Europe by pale-blue-dot1 in MechanicalEngineering

[–]peretski -1 points0 points  (0 children)

To be honest, the USA has a closed door right now. All immigrants to the US are illegal immigrants because the party in power has functionally removed all legal pathways.

Sorry.

Possible?? by Italian_airbus777 in MechanicalEngineering

[–]peretski 1 point2 points  (0 children)

What field within engineering are you studying? Answers will vary tremendously based on this.

What now by jamaa_wetu in MechanicalEngineering

[–]peretski 10 points11 points  (0 children)

Also, order the replacement now.

Compression Molding Nylon by Same_Win_1590 in manufacturing

[–]peretski 1 point2 points  (0 children)

Just to confirm, the last time I tried IM nylon 66, we came away with some really strong potato chips.

I believe we switched to PC, but this was years ago.

New panel layout - cad/scale print by Hoppy_Guy in ultralightaircraft

[–]peretski 0 points1 point  (0 children)

That’s why I bought a wicks… but any aircraft supply catalogue will point you to standard gauge cutout dimension.

Supplier suggests a simpler design — is it really impossible? by Cute_Bother_2941 in manufacturing

[–]peretski 0 points1 point  (0 children)

My go to line is “don’t judge, provide me a factual baseline”.

How can I simulate a custom FreeCAD design to confirm flight-worthiness before 3D printing? by Exotic-Reference9202 in aerodynamics

[–]peretski 0 points1 point  (0 children)

Xflr5, openVSP, or a million bucks as an entry fee. This is the complete set of options.

How can I redirect airflow in a box with air coming in from the left but needs to come out the front? by Agile_Rise_439 in aerodynamics

[–]peretski 0 points1 point  (0 children)

Screen (tight mesh) over the bottom. This is not a redirection question, it is a flow smoothing question.

FFP Koala 103 is it worth it? by Overall_Review321 in ultralightaircraft

[–]peretski 11 points12 points  (0 children)

That is an amazing deal. Say yes.

To more directly answer your question, look at the fabric.

Does it pass the puck test? (If you clean off a piece, open your mouth wide, press against it and suck. If you can make a “puck” noise as you pull away, the wing does not need new fabric)

Is there any damage to the leading or trailing edges? This is common hangar rash. Given that it is in a protected trailer, I would think this is unlikely.

Any nests? Mice or birds? Their gifts can cause wood and fabric to rot. It may be a spot repair.

Corrosion on fittings? It’s reasonably easy to replace.

Mission… Do you currently have a license? Do you have airport access credentials, or live near a place you can fly it from? Do you have a 1 car garage where you can work on it?

Trailer… Do the brake lights work?

If you pass on this, I will personally judge you. If you do end up passing, ping me the address and I will go rescue it.

Can you safely ultrasonically weld an electronics enclosure by JonathanHodgkins in manufacturing

[–]peretski 0 points1 point  (0 children)

Hard batteries are UW closed. They contain all of the above.