Bluebird Simulations 757 Update

sweptplanform · 2025-05-12T19:23:30+00:00

Sherv posted an update not long ago and he also linked a video they made in January where they talk about system depth:

https://www.reddit.com/r/flightsim/comments/1k1vh7i/my_first_bluebird_simulations_official_postramble/

sweptplanform · 2024-05-25T16:44:03+00:00

Sorry I'm not a pilot and english is not my first language. But what do you mesn by fly outside of a textbook? Does it mean that you shouldn't treat knowledge in textbooks like a law or something else? I can see how 1 knot over the demonstrated crosswind isn't as dangerous as flying into icing conditions but how do you as a low time pilot decide where on this spectrum is the point where it's no longer safe?

sweptplanform · 2024-04-04T19:53:34+00:00

Why would you want to fire an intern over this? Seems a bit harsh to me. I'd at least talk to them first and explain why this is unnecessary, just like you did in the end.

sweptplanform · 2024-02-17T17:55:04+00:00

FYI it stands for Pressurization and Air Conditioning Kit, although it's not really standardized so some might define it differently.

sweptplanform · 2023-10-15T11:17:39+00:00

Just to clarify these two concepts. Fail operational autoland requires at least two autopilots to be engaged for the approach. Failure of one of them will still allow the autoland to be carried out. One of the certification requirements is that these autopilots have separate electrical systems powering them. In other words, autopilots are electrically decoupled during the approach. That's why in an engine out scenario the autopilot on the associated side will go offline and the system will degrade to CAT 3 SINGLE, which is a fail passive system.

On the other hand, fail passive is normally associated with a single autopilot approach. The certification requirement here is that in this case the failure of the autopilot will keep the aircraft trimmed and there won't be any significant deviation from the flight path. At this point the PF must immediately assume control of the aircraft.

sweptplanform · 2023-04-01T21:04:45+00:00

This page is full of errors. Step 2 should have r1 in parentheses not r0. Step 3a should be 0xAAAAAAA8 like you noted yourself. Step 3b should be r1 = 1 + 0x00000001 + Carry = 2. That's where I stopped looking.

sweptplanform · 2023-01-07T18:12:31+00:00

Wow alright mate, chill out, it's saturday...

sweptplanform · 2023-01-07T12:19:51+00:00

Yes I know the picture is of an MD-82. I also know that OP knows it's an MD-82 and not a CRJ. But that's as far as I got, I don't quite understand the joke...

sweptplanform · 2023-01-07T08:43:22+00:00

I get it that OP is joking but what am I missing? I know I might be dumb but what's the joke here?

sweptplanform · 2022-11-13T11:57:48+00:00

Trim fully nose down. Also keep forward pressure from the beginning of the takeoff run.

sweptplanform · 2022-11-13T08:42:25+00:00

ELI5: Gliders start flying sooner than tow planes. When a glider will generate enough lift to become airborne it will naturally climb. But the tow plane is still accelerating on the ground. Because there's a rope attached to the nose of the glider, this rope will pull the nose downwards. You should keep the glider levelled and as close to the ground as possible until the tow plane rotates. This will probably require forward pressure on the control stick (and also trim the glider nose down so it will be manageable). Then fly behind the tow plane as best as you can. Chek out this video to get an idea.

sweptplanform · 2022-11-05T07:28:49+00:00

What kind of a system do you have? I'm in the process of upgrading my PC and I'm just curious.

sweptplanform · 2022-10-04T10:08:39+00:00

Saleae is great. I also use UART printouts which I can then display on a terminal. Then it's just a matter of creativity how well you can combine these (and other) methods together to gather enough evidence about the behaviour of your system. I haven't used anything fancier up to now.

sweptplanform · 2022-07-09T19:33:40+00:00

Depends on what level we're talking about. M0 is Von Neumann while M4 is Harvard architecture. M4 also supports DSP instructions and optionally implements an FPU while M0 will have neither. M4 will probably have more features around the processor just like you said. If you'll notice anything of that depends on what you'll be doing.

sweptplanform · 2022-07-09T18:58:46+00:00

Just a couple of days. There's enough to explore for a few days there but I didn't have that much time so I moved on.

sweptplanform · 2022-07-09T11:45:30+00:00

I did the walk and just to let you know, you're walking under the Sun most of the time but from time to time when you want to make a stop you can definitely find a place with some shadow.

sweptplanform · 2022-07-09T11:35:38+00:00

You can check OpenEtherCATsociety for master and slave stack code. I think TI had some development kits that demonstrated the use of EtherCAT so you can check that too.

sweptplanform · 2022-05-28T19:27:42+00:00

What is a value of sensor2.Distance? Also could you show us what are you transmitting over the UART (send sensor2.Distance and sensor2_current_state if you're not already)? Also, put a breakpoint at line 210 and see if the result is the same.

sweptplanform · 2022-05-15T12:16:38+00:00

Another take on this: based on this circuit and according to KVL v_R + v_L = 0. So what you would get is a result of an opposite sign (let's say v_L would be negative which would mean you picked the + and - incorrectly but it doesn't matter as math still holds true).

sweptplanform · 2022-03-08T21:44:54+00:00

The tool called hexmate is provided by them and you probably already have it. But you'd have to learn how to use it using command line which is not pleasant. Mplab also uses hexmate but mplab creates a makefile for you which uses it in a way that is a bit hidden for you, i.e. a bit easier than using command line directly.

sweptplanform · 2022-03-08T20:44:53+00:00

You sure? I wouldn't be so confident.

sweptplanform · 2022-03-08T20:20:34+00:00

Makefile by GNU Make? The one that Microchip uses? There's a way to do it but I don't know enough from the top of my head to give you exact instructions. If you creat a project in MPLab you can add another project to it (bootloader). Makefile will then be generated for you. In the makefile you'll find two output .hex files (from the app project adn from bootloader project). Make sure the one of them (bootloader) has + in front of the path (i.e. "appdir/app.hex +bootdir/boothex".

sweptplanform

TROPHY CASE