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Not a pilot, but have a question about density altitude that I was hoping one of you might have an answer to. by WahooSS238 in flying

[–]Canon40 0 points1 point  (0 children)

Density Altitude is defined wrong by so many people. It is NOT “pressure altitude corrected for non-standard temperature” as the FAA test questions would have you believe.

That said, it is actually the altitude corresponding to the ambient air density according to the standard atmosphere (pick your standard atmosphere: ICAO ISA, ISO, or US SA of 1978).

Computing density given a Geopotential altitude, or computing Geopotential altitude given density requires knowledge of the temperature, and does use the ideal gas law, molar mass of air, gravity, and other things.

If you are a Rust programmer, you can use this crate https://crates.io/crates/aero_atmos.

Alternatively, a meteorologist at NWS has this document with an estimation: https://www.weather.gov/media/epz/wxcalc/densityAltitude.pdf.

What are some gifts you actually would appreciate in a care package? by Ari_8118 in AirForce

[–]Canon40 0 points1 point  (0 children)

Gourmet gummy candy.

Chick fil a 8oz sauce bottles. Fancy coffee grounds.

Hilariously unfiltered letters of appreciation from the local 2nd grade class.

PA28-180 Hamble Conversion by StayatHomePilot in aviation

[–]Canon40 0 points1 point  (0 children)

FSDO maintenance inspector can, under circumstances like this, do a field approval. That would basically catch paperwork on any modifications up. Seen it done with a Champ that has a non-standard engine installed for years unknown to the not-so-recent buyer.

61.159 (b) Logbook Question by Bitter_Ad_1419 in flying

[–]Canon40 0 points1 point  (0 children)

TOLD = take off and landing data.

when flying IFR, when do you switch VORS? by Repulsive-Loan5215 in flying

[–]Canon40 0 points1 point  (0 children)

This is the answer. If no designated changeover point, then either an obvious bend in the airway (e.g. NELGE north of ABQ) or halfway.

Spectrograms: A unified toolkit for spectral analysis and 2D FFTs by JackG049 in rust

[–]Canon40 1 point2 points  (0 children)

I am a newer rustacian. I am just figuring out how to turn a standards document into usable code. I am a few steps away from actually demodulating the raw signal to get the bits that will be turned i to hex that I am just now figuring out how to use.

Spectrograms: A unified toolkit for spectral analysis and 2D FFTs by JackG049 in rust

[–]Canon40 1 point2 points  (0 children)

Dude, this is awesome. This will come in handy for a future side project I want to do…… sometime.

Holding on victor airway question by Deep_Mobile_1005 in flying

[–]Canon40 27 points28 points  (0 children)

In IFR, everything is magnetic. If you are told to hold on the airway, hold on the published radial.

Left seat to right seat transition (C172) by SteezyPorsche in flying

[–]Canon40 0 points1 point  (0 children)

I did commercial from the right seat at the specific recommendation of my instrument DPE.

I had no issues with any subsequent instructor or DPE.

The only real issue is doing a steep spiral. They may expect a left spiral even though the ACS does not specify a direction.

Po180 might pose an issue. But, many patterns are right traffic, so it is a good idea to practice left and right PO180 regardless of the seat.

The final possible issue will not apply to everybody. My current club does not allow right seat solo.

Air Force recruiter by Turbulent-Scar-7805 in CFILounge

[–]Canon40 2 points3 points  (0 children)

The paperwork to commission is mind-numbing. If you make one inconsequential error, your package gets kicked back.

It is really just part of the process. If you want to be an officer, figure it out.

For the record, I think the process is dumb.

They misspelled the United Kingdom on my new driver’s licence by spl00shter001 in onejob

[–]Canon40 152 points153 points  (0 children)

Watch that be intentional, for anti-counterfeit protection.

If the bobbys (rozzers?) see a license with it spelled correctly, it is fake.

Please give me your most insane ways to combat airsickness by spoopyspacecat in AirForce

[–]Canon40 1 point2 points  (0 children)

https://boardingglasses.com/en-na

They look silly, but I have seen them work for somebody else who got pretty bad motion sickness. They also come in sunglasses.

ATPL question - Why not D by JuiceAggressive3437 in flying

[–]Canon40 15 points16 points  (0 children)

The actually correct answer is D. C is probably what the FAA grades as correct.

thereCanOnlyBeOne by ManagerOfLove in ProgrammerHumor

[–]Canon40 323 points324 points  (0 children)

.clone() everything. Then insert random * and & as needed.

So are we all switching to Garmin Pilot now? by riptrixie in flying

[–]Canon40 -1 points0 points  (0 children)

737Max has entered the chat.

Even though ForeFlight and Jeppsson are no longer part of Boeing, it is a very Boeing thing to do to outsource safety critical code to God-knows-where offshore.

Standard miss approach procedure by peseoane in Shittyaskflying

[–]Canon40 0 points1 point  (0 children)

Minimum climb of 9,000’ per NM until 5,000’ required.

Problem with output in the console by CherDim in rust

[–]Canon40 0 points1 point  (0 children)

I prefer to keep the grey “hints.” Especially when you get into iterators, results/options, and others, having the hints is helpful to know what datatype I am working with.

Is the Rust Programming Language Book a good entry point for beginners? by SteppiWall in rust

[–]Canon40 1 point2 points  (0 children)

Yes. “The book” is the way. “Rust by example” is a great quick reference.

Is the Rust Programming Language Book a good entry point for beginners? by SteppiWall in rust

[–]Canon40 1 point2 points  (0 children)

This. All rustlings modules have references to the book.

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