✈️ Flight Simulator 737-800 [DOCUMENTATION]

dancing_wolf229

excuse me, this game is very hard for younger people such a s me, so could you please make the instructions clearer and easier to understand? thank you.

-Thatguy2020

:smile:

-Thatguy2020

how do you make a Discussion?

awesome-llama

dancing_wolf229 wrote:
excuse me, this game is very hard for younger people such a s me, so could you please make the instructions clearer and easier to understand? thank you.

It's not an easy fix and a suggestion like “clearer and easier to understand” is too general for me to be able to do anything. What specifically are you having trouble with?

-Thatguy2020

dancing_wolf229 wrote:
excuse me, this game is very hard for younger people such a s me, so could you please make the instructions clearer and easier to understand? thank you.

no its easy! when take off use flaps (they increase lift) when u have to much speed, spoilers (they are meant to slow it down)

awesome-llama

-Thatguy2020 wrote:
how do you make a Discussion?

Press New Topic:

unlocked_absolute

Well I wonder if me and 98129182 can actually defeat this flight simulator with our work in progress XFS320neo.

Also @awesome-llama, how long do you take to finish the Boeing 737-800 flight simulator?
Well getting the answer to that can help me estimate how many months it shall take to complete my flight simulator.

awesome-llama

Luqman_IDRISSI wrote:
Well I wonder if me and 98129182 can actually defeat this flight simulator with our work in progress XFS320neo.

Also @awesome-llama, how long do you take to finish the Boeing 737-800 flight simulator?
Well getting the answer to that can help me estimate how many months it shall take to complete my flight simulator.

https://api.scratch.mit.edu/projects/341589959/

{"created":"2019-11-04T01:44:25.000Z","modified":"2021-02-23T12:05:46.000Z","shared":"2020-09-22T14:53:29.000Z"}

I created it on the 4th of November 2019. I shared it in the 22nd of September 2020. That is 10 months. It's the longest I have spent on a project. Most of them only take around 1 month.

-Thatguy2020

awesome-llama wrote:
-Thatguy2020 wrote:
how do you make a Discussion?

Press New Topic:

[/quote

Last edited by -Thatguy2020 (Feb. 24, 2021 21:49:14)

-Thatguy2020

Where?

awesome-llama wrote:
-Thatguy2020 wrote:
how do you make a Discussion?

Press New Topic:

-Thatguy2020

awesome-llama

-Thatguy2020 wrote:
Where?
awesome-llama wrote:
-Thatguy2020 wrote:
how do you make a Discussion?

Press New Topic:

On any of the sub-forum pages, there will be a button.
Here's one for example: https://scratch.mit.edu/discuss/8/

-Thatguy2020

awesome-llama wrote:
-Thatguy2020 wrote:
Where?
awesome-llama wrote:
-Thatguy2020 wrote:
how do you make a Discussion?

Press New Topic:

On any of the sub-forum pages, there will be a button.
Here's one for example: https://scratch.mit.edu/discuss/8/

thx. by the way i like the name

ScratchAharshi

My new Flight Simulator 737-800 https://scratch.mit.edu/projects/494938488/

DMLL4305

Request: Could you add Reverse Thrust? If you are currently updating your 737-800 simulator.

awesome-llama

DMLL4305 wrote:
Request: Could you add Reverse Thrust? If you are currently updating your 737-800 simulator.

I decided to not add it pretty early on in development.
Why? There is something to consider: Its purpose versus the complexity it adds.

Reverse thrust simply is an aid to braking. Stopping is entirely possible without it. Of course, it is used in real life to reduce the wear on the brakes and make them last a bit longer, but should this really matter in my flight simulator?
With the other part that I mentioned, complexity, this is composed of two things. The complexity of adding it in code, and the complexity of using it in the flight simulator. It's already way more complicated than anything else you can get on Scratch and because of this, it doesn't really cater for most Scratch users. I get a lot of comments saying that my flight simulators (even the “easier” ones) are too hard to use. For the complexity of it being implemented, there are a few things I have to adjust for it to work:

Input - I need to add a new button on the keyboard and try and find room on the already cluttered interface for its display/button.
Thrust - I need two new variables. One for the desired state and one for the actual position of the reversers. I need to add a part in the code that directs the thrust force vector forwards as well, and create a formula that accurately directs the right amount. Note: I don't know if there are any resources on this that allow me to implement it accurately.
Automated functions - TO/GA needs to be able to control the thrust reversers.

In weighing both sides, I decided that reverse thrust was not going to be added from these above points.

-Thatguy2020

ooooo! i think if you wanna make another plane thing can u do the sesna 172. my favorite plane. u don't have to tho

Last edited by -Thatguy2020 (March 2, 2021 21:52:43)

unlocked_absolute

awesome-llama wrote:
Luqman_IDRISSI wrote:
Well I wonder if me and 98129182 can actually defeat this flight simulator with our work in progress XFS320neo.

Also @awesome-llama, how long do you take to finish the Boeing 737-800 flight simulator?
Well getting the answer to that can help me estimate how many months it shall take to complete my flight simulator.

https://api.scratch.mit.edu/projects/341589959/
{"created":"2019-11-04T01:44:25.000Z","modified":"2021-02-23T12:05:46.000Z","shared":"2020-09-22T14:53:29.000Z"}
I created it on the 4th of November 2019. I shared it in the 22nd of September 2020. That is 10 months. It's the longest I have spent on a project. Most of them only take around 1 month.

I see. So if an expert like you took 10 whole months, a team of starters like me and 98129182 (possibly with more people contributing soon) might take 1-2 years. Anyways, how did you found all the calculations with high accuracy to ensure the flight simulator's realisticness?

DMLL4305

awesome-llama wrote:
DMLL4305 wrote:
Request: Could you add Reverse Thrust? If you are currently updating your 737-800 simulator.
I decided to not add it pretty early on in development.

Why? There is something to consider: Its purpose versus the complexity it adds.
In weighing both sides, I decided that reverse thrust was not going to be added from these above points.

OK!

That is true, you already have 2 methods of slowing down in the simulator (Spoilers, and regular brakes), and it would be a pain to activate the brakes, spoilers (if you did not arm them.), and the reverse thrust at the same time.
Yeah, adding something complicated to an already complicated project would be pretty tiring and immense!

I play Microsoft Flight Simulator X a lot, so to me, your flight simulators are really easy, since I had prior experience, I didn't even have to read the documentation to make my first landing, (Of course, I read the documentation afterward since I wanted to learn even more about the simulator), but yes, obviously 90% of Scratch users are not veteran Flight simmers, so it is expected that they would have trouble, but who said flying an aircraft was easy?
You did a really awesome job on it, making it as realistic as you can, It just really reminded me of FSX, especially the cockpit, it's your best.

By the way, I am currently remixing your 737-800 sim, (gonna make a 777-900 sim) and I just wanted to know: for the Lift and Drag equations, you used all Metric values, correct? and did you use the exact numbers from the real plane, or did you use different numbers to represent them?

awesome-llama

DMLL4305 wrote:
awesome-llama wrote:
DMLL4305 wrote:
Request: Could you add Reverse Thrust? If you are currently updating your 737-800 simulator.
I decided to not add it pretty early on in development.

Why? There is something to consider: Its purpose versus the complexity it adds.
In weighing both sides, I decided that reverse thrust was not going to be added from these above points.

OK!

That is true, you already have 2 methods of slowing down in the simulator (Spoilers, and regular brakes), and it would be a pain to activate the brakes, spoilers (if you did not arm them.), and the reverse thrust at the same time.
Yeah, adding something complicated to an already complicated project would be pretty tiring and immense!

I play Microsoft Flight Simulator X a lot, so to me, your flight simulators are really easy, since I had prior experience, I didn't even have to read the documentation to make my first landing, (Of course, I read the documentation afterward since I wanted to learn even more about the simulator), but yes, obviously 90% of Scratch users are not veteran Flight simmers, so it is expected that they would have trouble, but who said flying an aircraft was easy?
You did a really awesome job on it, making it as realistic as you can, It just really reminded me of FSX, especially the cockpit, it's your best.

By the way, I am currently remixing your 737-800 sim, (gonna make a 777-900 sim) and I just wanted to know: for the Lift and Drag equations, you used all Metric values, correct? and did you use the exact numbers from the real plane, or did you use different numbers to represent them?

Thanks!

As for the equations, yes, everything is metric only in (physics) calculations.

Force is Newtons
Mass is kilograms
Distance is metres (not kilometres)
Speed is metres per second, acceleration is metres per second per second

There are a couple places I don't and convert it over to feet and knots such as the calculations done for the automated functions and the interface rendering.

For the exact numbers, it depends. I used Wikipedia's specifications for some of the main things: https://en.wikipedia.org/wiki/Boeing_737#Specifications
The rest of the details were either researched, or taken out of the operations manual: http://toulouse747.com/wp-content/uploads/2018/12/Boeing-B737-700-800-900-Operations-Manual.pdf
Some of the details had to be guessed (mostly aerodynamics) because there isn't really any source for me. I had to use generalised graphs to do this.
Here's an example:

With such graphs, the challenge is to create a formula that can match the curve. I use a graphing calculator to try and get it to match.

Take a look at this: https://www.desmos.com/calculator/cn6uzq7izw
I had to represent this graph:

Discuss Scratch