Real Scale Sea Dragon

The infamous, never-built Sea Dragon rocket, in its full scale glory!

License: CC-BY-NC-SA

Game Version: 1.9.1

Downloads: 38,886

Mod Website: Forum Thread

Followers: 38

Outdated Mod

This mod is not known to work with the latest version of Kerbal Space Program. Proceed with caution.

Information Changelog Stats

Real Scale Sea Dragon is a realistically scaled parts pack, for making the infamous Sea Dragon rocket concept. This is a spin-off from Real Scale Boosters, but does not require use of that pack.


  • ModuleManager
  • HangarExtender (Sea Dragon is simply too big to edit in the VAB without this)


Version 0.3.4 for Kerbal Space Program 1.9.1

Released on 2016-07-12

0.3.4 (2016-07-12) - Tweak.

  • Slightly increased heat tolerance of first stage parts.

Download (10.35 MiB)

Version 0.3.3 for Kerbal Space Program 1.1.3

Released on 2016-05-11

0.3.3 (2016-05-11) - Minor hotfix.

  • Corrected staging problems in sample rockets.

Download (10.35 MiB)

Version 0.3.2 for Kerbal Space Program 1.1.2

Released on 2016-04-23

0.3.2 (2016-04-22) - Tweaks.

  • Added collider setting for procedural fairing base.

  • Adjusted tech node to play more nicely with Real Scale Boosters.

Download (10.35 MiB)

Version 0.3.1 for Kerbal Space Program 1.1

Released on 2016-04-03

0.3.1 (2016-04-03) - KSP 1.1 Hotfix

  • Sample rockets were locking up KSP 1.1 when sending to the pad/runway. Updated for 1.1, but are no longer compatible with 1.0.5.

  • Sample rockets saved with fairing settings to use maximum ejection force, and 4-way clamshells.

Download (10.35 MiB)

Version 0.3 for Kerbal Space Program 1.1

Released on 2016-04-03

0.3 (2016-04-02) - The Sea-Recovery Update. Works with KSP 1.0.5 and 1.1

  • Increased crash tolerance of first stage engine and tank to 150 m/s to support oceanic crash-landing recovery.

  • Removed stack attachment node from end of skirt extension on second stage tank, and instead added it to second stage engine.

  • Added inflatable "recovery flare" to the first stage engine, and updated sample rockets to put it on action group 2.

Download (10.35 MiB)

Version 0.2 for Kerbal Space Program 1.1

Released on 2016-03-28

0.2 (2016-03-28) - The Sea-Launch Update. Works with KSP 1.0.5 and 1.1

  • Increased crash tolerance considerably on all parts, to allow bouncing around in the water.

  • Added attachment node at bottom of first stage engine to allow attaching the ballast tank.

  • Extended first stage tank's lower skirt, and removed extraneous attachment node corresponding to it.

  • Shortened first stage engine length (and updated sample rocket accordingly), after discovering miscalculation.

  • Reworked colliders for first and second stage main engines, and first stage tank.

  • Added ballast tank for sea launches.

  • Added SPH sample rocket with ballast tank.

  • Updated VAB sample rocket to ignite the verniers at launch in the staging.

  • Added an animated bell extension for the second stage engine, and updated sample rockets to use it (action group 1).

  • Added custom smoke trail for first stage engine (known issue: runs regardless of air pressure).

  • Removed smoke trails from upper-stage engine + verniers (hydrogen burns cleanly).

Download (9.26 MiB)

Version 0.1 for Kerbal Space Program 1.0.5

Released on 2016-03-25

0.1 (2016-03-25) - First test release.

  • Mostly complete. Using stock procedural fairing system. No ballast tanks.

  • Known issue: Fairing "confetti" is rather deadly.

  • Known issue: Steering authority in upper stage is weak. Already artificially inflated though! (should be worse!)

Download (7.83 MiB)

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