Profile image

Falcon 9

38.7k UltraLight  3.5 years ago

SpaceX Falcon 9 Booster

NO GYRO USED!! ALL CONTROL IS WITH ENGINE GIMABLING!!

A (mostly) scale model of the Falcon 9. I made a few moderations to the real one, like going from 9 to 5 engines. I didn't make the grid fins rotate, it is just airbrakes, however the engines have gimbaling(vectoring) for 3-axis attitude control.

I would also like to point out that this is a 74 part craft, making it seem low-effort, but the thing is, boosters really don't take many parts.

Construction consists of a bland and basic body, with an interstage on top and a small coned base. Then you can put on some grid fin stuff if you want, and make the engines. I think my bells are 3 parts each, with two rotators and that's all. 4 different 3 part landing legs to top everything off. Then I had to go through and make all the different code optimizations for each engine, which was definitely the most time-taking. After that, I added little interior fins that add stability during flight, to help things out just a bit.

CONTROLS

Pitch controls the forward/backward tilt
Yaw controls the sideways tilt
Roll controls the twist of the rocket

Ag1 is control over grid fin extension/retrograde stability(think of it as descent mode).
Ag2 is control over the start of the 5 raptor engines.
Ag3 is control over landing leg extension(they start extended).

General Characteristics

  • Created On Android
  • Wingspan 32.8ft (10.0m)
  • Length 33.4ft (10.2m)
  • Height 131.5ft (40.1m)
  • Empty Weight 26,968lbs (12,232kg)
  • Loaded Weight 32,474lbs (14,730kg)

Performance

  • Power/Weight Ratio 0.415
  • Wing Loading 219.4lbs/ft2 (1,071.3kg/m2)
  • Wing Area 148.0ft2 (13.8m2)
  • Drag Points 3459

Parts

  • Number of Parts 74
  • Control Surfaces 0
  • Performance Cost 444
  • Log in to leave a comment
  • Profile image
    38.7k UltraLight

    Tell me how to improve!


    Important to note that 0% throttle input results in a 40% output, so when you land it is best to immediately deactivate group two to put the vehicle's full weight onto the legs, greatly helping it stay vertical.

    Pinned 3.5 years ago
  • Profile image
    5,134 PriyanshuGM

    thats so awesome and so easy to fly

    3.2 years ago
  • Profile image
    38.7k UltraLight

    @IceCraft maybe someday

    +1 3.5 years ago
  • Profile image
    35.2k Icey21

    @UltraLight probably do the whole rockt?

    3.5 years ago
  • Profile image
    35.2k Icey21

    I love this

    3.5 years ago
  • Profile image
    38.7k UltraLight

    @SimpleJets yes, I love it

    3.5 years ago
  • Profile image
    2,382 SimpleJets

    Have you tried SR2

    3.5 years ago
  • Profile image
    38.7k UltraLight

    @dTitanplanesb wel..

    3.5 years ago
  • Profile image

    I can't be the only one intent on turning this into an ICBM.

    3.5 years ago
  • Profile image
    38.7k UltraLight

    @asteroidbook345 how dare you!

    3.5 years ago
  • Profile image
    38.7k UltraLight

    @uptightjumbo great to hear!

    +1 3.5 years ago
  • Profile image
    2,623 uptightjumbo

    @UltraLight yes, very nice and very smooth.

    +1 3.5 years ago
  • Profile image

    @UltraLight no lmao

    3.5 years ago
  • Profile image
    38.7k UltraLight

    @asteroidbook345 have you flown it yet?

    3.5 years ago
  • Profile image
    38.7k UltraLight

    @Ergi thanks! And like the name being back :)

    3.5 years ago
  • Profile image
    38.7k UltraLight

    @asteroidbook345 yes

    3.5 years ago
  • Profile image

    Dogecoin rocket

    3.5 years ago
  • Profile image
    38.7k UltraLight

    @uptightjumbo do you like how it flies?

    +1 3.5 years ago
  • Profile image
    2,623 uptightjumbo

    @UltraLight np

    +1 3.5 years ago
  • Profile image
    38.7k UltraLight

    @OPaiTaOn thanks!

    3.5 years ago
  • Profile image
    38.7k UltraLight

    @uptightjumbo thanks!

    +1 3.5 years ago