Egregoros

That's a bit of a challenge because then I need an aircraft - at least an RC... But that would be fun because it would give me a business justification to have one...

Replying to @cjd@pkteerium.xyz

Cliff "It Never Happened" Secord 🇺🇸🇦🇹

Be sure to read "Helicopter Theory" by Wayne Johnson. There you will get great insights on refining your concept and dynamic scaling for any modeling work you intend to do.

Additionally, you can also validate the aerodynamic modeling of your rotor in QBlade (open source).

Replies

Replying to @CliffSecord@nicecrew.digital

Caleb James DeLisle

I'm not a aerodynamics guy, I'm a machinist (well, these days I'm a programmer, but I did have 4 years of it). So I'll just take the blade off of a ground adjustable prop and clamp them in. Then all I need to care about is balance, soundness, and making sure my joints don't max out their travel.

Replying to @cjd@pkteerium.xyz

Caleb James DeLisle

@Suiseiseki@freesoftwareextremist.com remote

Alright Cliff, here's my pitch, tell me what you think:
* You're making an SLSA and you've decided it's time to go proprietary engine route (lets imagine)
* I have a hub that will clamp existing ground-adjustable prop blades and all you need to adjust them is to wire up a brush to get power down the prop shaft to a servo motor in the spinner.
* You can get this thing made at PCBWay, it's just CNC lathe and milling work, every shop knows how to do this.
* It uses ball joints so basically all of the load is centrifugal. My invention is the way to pitch the blades while they're being held in ball joints.
* EAB and non-commercial gets CNC codes for free, anyone selling the hub to the public can license it for 20% of their sale price, if you're selling it as part of your plane, you pay $100 per unit. With the license you get all of the test results that I have, so you have a head start to your MOSAIC documentation.

Does this sound attractive?

Replying to @cjd@pkteerium.xyz

GNU/翠星石

@cjd @Zeb @CliffSecord You want to extort me by that amount?

Get drone striked.

Replying to @Suiseiseki@freesoftwareextremist.com

Caleb James DeLisle

Every commie eventually does the meme.

Replying to @cjd@pkteerium.xyz

Cliff "It Never Happened" Secord 🇺🇸🇦🇹

Why do you need to articulate an LSA-class propeller? There is no need to. With as low an MMOI they have, articulating them will introduce way more problems than something like this will solve.

But if you have the data to make a solid case for this, we'd be open to at least looking into the concept

Replying to @CliffSecord@nicecrew.digital

𝓦𝓪𝓲𝓯𝓾.

there are plenty of LSA props that are electrically articulating, and when MOSAIC hits most small GA aircraft will fit into the LSA category.

Replying to @AWIVR@nicecrew.digital

Caleb James DeLisle

Yea, that was basically the thought.

But I wouldn't try to pitch it to anybody who wasn't already casually dreaming about being able to include variable pitch in their offering...

Replying to @cjd@pkteerium.xyz

𝓦𝓪𝓲𝓯𝓾.

I flew a Grumman with one of these electrically variable pitch props from MT once. The owner STC'd an O360 with a fixed pitch 2 blade to a electrically variable 3 blade. You toggle pitch with a 3 position switch. I thought it was pretty neat https://www.mt-propeller.com/mt/en/products/propeller-systems/electric-propellers-1086/

Replying to @AWIVR@nicecrew.digital

Caleb James DeLisle

That's pretty neat. Hopefully MOSAIC will make this stuff become a cheap lump of metal, because there's really no reason that it wouldn't be. Neither the oil pressure system nor the gigantic bearings are really necessary AFAICT.

Replying to @AWIVR@nicecrew.digital

Cliff "It Never Happened" Secord 🇺🇸🇦🇹

We'll be doing a Rotax 916 iS A driving a Sensenich 3B0 prop on an FP CS hub on our bird.

Full FADEC control from the powertrain... set & forget. Prop set at the push of a button.

It'll make me yearn for the days of constantly screwing around with throttle, pitch, mixture and manifold pressure! Fuck it...who am I kidding?😆

Replying to @CliffSecord@nicecrew.digital

𝓦𝓪𝓲𝓯𝓾.

I fly PC-12 NG's now. No FADEC, but one PCL to control everything. Managing three levers is for the birds.

Replying to @AWIVR@nicecrew.digital

Cliff "It Never Happened" Secord 🇺🇸🇦🇹

A great, great airplane.

One of our accounts has us doing aero analysis work on the U-28 variants for AFSOC.

Replying to @CliffSecord@nicecrew.digital

𝓦𝓪𝓲𝓯𝓾.

I may or may not be incredibly familiar with those lol.

The program ends next year with no real replacement.

Replying to @AWIVR@nicecrew.digital

Cliff "It Never Happened" Secord 🇺🇸🇦🇹

Ever try out a Piaggio P.180?

Cheesy-looking but man, she is a dream to fly!

Replying to @CliffSecord@nicecrew.digital

𝓦𝓪𝓲𝓯𝓾.

there's one that flies in and out of OKC all the time. I'd rather have a King Air. Less to stress about when something breaks lol

Replying to @AWIVR@nicecrew.digital

Cliff "It Never Happened" Secord 🇺🇸🇦🇹

For sure. Having parts & maintenance handy across the nation are always a good thing.

Replying to @CliffSecord@nicecrew.digital

Caleb James DeLisle

@lispi314@udongein.xyz remote

As far as I can see, constant speed is just variable pitch plus a control box. So in my initial idea, I didn't really make a distinction whether it's you setting pitch, or the computer.

Replying to @cjd@pkteerium.xyz

LisPi

@cjd @Zeb > anyone selling the hub to the public can license it for 20% of their sale price

That makes it impossible to sell it at-cost/non-profit, that's not okay.

Replying to @lispi314@udongein.xyz

Caleb James DeLisle

@lispi314@udongein.xyz remote

How do you imagine people deal with VAT or sales tax?

Replying to @cjd@pkteerium.xyz

LisPi

@cjd @Zeb By including it in the price. That becomes at-cost + VAT.

You're implying that's an acceptable outcome. It isn't.

Sales tax is harmful and shouldn't be encouraged.

Replying to @lispi314@udongein.xyz

Caleb James DeLisle

@lispi314@udongein.xyz remote

Ahh but you didn't say that it's "harmful" or that it "shouldn't be encouraged".

You said that a 20%-of-sale-price fee makes it IMPOSSIBLE to sell without profit - until I pointed out that basically every government in the world does this already.

That's not a typo, that's something that people who have experience with money and budgeting would never say.

So now I know that you've never sold anything before, and most likely you live at home - and budgeting is mostly something your parents manage.

And you would like me to take your opinions about sales tax and intellectual property seriously.

Interesting.

Replying to @cjd@pkteerium.xyz

LisPi

@cjd @Zeb

You said that a 20%-of-sale-price fee makes it IMPOSSIBLE to sell without profit - until I pointed out that basically every government in the world does this already.

It is what people do, but logically it makes no sense.

Apply on sale price -> new sale price, need to re-apply -> apply infinitely. There is no condition given for stop. It's improperly defined.

So now I know that you've never sold anything before, and most likely you live at home - and budgeting is mostly something your parents manage.

If you're going to resort to ad hominem bullshit that isn't even accurate to start with, you could just block me instead.

Replying to @lispi314@udongein.xyz

Caleb James DeLisle

@Zeb@merovingian.club remote

Crying "ad hominem" is such a terrible retort.

It's like saying "You just called me a loser, and I'm not gonna deny it, but I claim it has no bearing on the value of my opinion".

Uhm, yes it fucking does.

IF, it's a purely theoretical field like logic or mathematics, then yes, you can write a proof and even if you're a bumbling idiot, that proof is either correct or incorrect and that's it.

But on every single topic that people actually disagree about, you can't "prove" an argument correct. Unless there are obvious logical inconsistencies, you can only tell if it "sounds good" which is totally unreliable.

This is why real world decision makers who have serious consequences if they're wrong always pay attention to WHO they are listening to. Financial advice from poor people, and health advice from sick people rarely gets a hearing.

And people who respond "ad hominem" to a challenge of their credibility are kinda forfeiting the debate.

Replying to @lispi314@udongein.xyz

Zeb 摆烂

@lispi314 @cjd
Interestingly, sales tax is the only fair tax. Ideally it's the ONLY tax any society should have, as it's a tax on consumption.

All other taxes distort the economy negatively and hurt everyone involved in the transaction by providing the wrong incentives.

Replying to @Zeb@merovingian.club

Caleb James DeLisle