664 downloads

## Gravity Turn Calculator v.1.0

#### Update Download Here

Predict your launch trajectory. Gravity Turn is launching the rocket with zero angle of attack, or always heading to prograde velocity without necessary pitch over, rocket's heading always lock on prograde after lift off. It is save more fuel when you can always vectoring your thrust against prograde velocity rather than pitchover more than 1 degree.

#### How to Use:

1. Attach MFD group parts to your rocket
2. Rename your 1st stage rocket engine into 'MainEngine', Then it can return engine's properties value into vizzy
3. Recomendation TWR is 1.5 - 1.8
4. This plotter only for single engine type on 1st stage, withou any side booster
5. At the moment only calculate 1st stage burn
6. The result very sensitive to initial pitchover height & angle
7. Reserve AG.1 for MFD cam
8. Calculation's result saved on a list, you can recall it into your flight plan

• For a gravity turn you need to solve a system with these equations:
• v(t) = f.t (Thrust(rho)/Mass(t) - Drag(v,rho) + g(z) cos(pitch)) + vi
• pitch = atan(g(z)*t/v(t)). where: Thrust is function of air density (rho) (or of external pressure, rho = pressure/unitary volume);
• Mass is function of time (t) = Initial Mass - fuelflow * t (note that fuelflow depends on throttle)
• Drag is function of speed (v) and air density (rho) (also, of Reynolds which also depends from v)
• gravity (g) is function of altitude (g(z))
• pitch is always oriented in the prograde direction (necessary condition for a gravity turn)
• air density (rho) also is function of altitude

Some of those terms are pretty complex in themselves. That's why I compute gravity turns by numerical integration, rather then with differential equations.

##### Now i'm still working on multistage calculation and other launch condition

Thanks for download it !!

#### Download Once, Play Forever !

Any suggestion? Please comment below

#### GENERAL INFO

• Created On: Android
• Game Version: 0.9.802.0
• Price: \$52k
• Number of Parts: 5
• Dimensions: 1 m x 1 m x 1 m

#### PERFORMANCE

• Total Delta V: 0m/s
• Total Thrust: 0N
• Engines: 0
• Wet Mass: 20kg
• Dry Mass: 20kg

#### STAGES

Stage Engines Delta V Thrust Burn Mass

## Comments

• 20.8k Rizkyman

# Download Here

Pinned 10 months ago
• 157 DSpacee

I’m back and workin on two rockets and since your my first supporter, One will be named after you

5 months ago
• 559 N1ghtH4wk

Btw ini di upvote sama developer

6 months ago
• 840 Degooood

Shnitzel

8 months ago
• 840 Degooood

Mantis

8 months ago
• 840 Degooood

Hi im back after 6 months

8 months ago
• 360 Mudit10x

It lags the game a bit on mobile

10 months ago
• 1,552 SPACEVISION

Wow!

10 months ago
• 157 DSpacee

@Rizkyman I love this

10 months ago
• 15 SPATEL

@Rizkyman
Hey BRO PLEASE HELP I have a problem and o have shared the post so please go to my profile and please see that post which is on the topic of REENTRY / VAIPOUR TRAILS PROBLEM AND PLEASE COMMENT HOW TO SOLVE IT PLEASE

10 months ago
• 4,427 DragonTech

peak vizzy skill as always

10 months ago
• 20.8k Rizkyman

@WAIVONSIS Thank you bruh, enjoy the game

10 months ago
• 130 WAIVONSIS

Hi!
I found my old account.
You were an inspiration and encouragement to me.
I read your comments and I am very pleased. Thank you so much.

10 months ago
• Can i use it into my craft?

10 months ago
• This is real gravity turn

+4 10 months ago
• 4,476 FelixFan1

@malumuteanaerospace
Indeed

10 months ago
• 5,658 SamTheFox

@Rizkyman I guess you’re welcome

10 months ago
• 20.8k Rizkyman

@SpaceSharkie201 read description first

10 months ago
• 5,658 SamTheFox

@Rizkyman for what exactly?

10 months ago
• 20.8k Rizkyman

@AyamBakar64 matur nuhun

10 months ago
• 20.8k Rizkyman

@FelixFan1 I have updated it, check pin comment

10 months ago
• @ahmad183 Mantap

+1 10 months ago
• 4,476 FelixFan1

@Rizkyman
Sounds good to me mate. Nice work so far, Not many people can match your skill level when it comes to Vizzy.

+3 10 months ago
• 1,713 DrexxVolv

@Rizkyman Your welcome, man.

10 months ago
• 20.8k Rizkyman

@DrexxVolv @pianoplanepianorocket @SpaceSharkie201 @ahmad183 @Flamoringo @PhilippinePacificSpace Thank you bruh

+1 10 months ago

## 57 Upvotes

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