KDF Hercules II
by InterstellarKev
uploaded 2023-07-30
stock+DLC spaceplane
#Fighter #Sci-fi #SpaceFighter #Spaceplane #SSTO


After years of service, the Hercules served as the superior fighter of the great
Kerbal Defense Force but there were improvements that were needed and speed
and power profile was the goal for the new update. The Hercules II was born.
Just like its predecessor the craft is capable of traveling
from most planetary surfaces in and around the Kerbol

Unlike the previous Hercules, this seats 1 and can also be flown
unmanned with the new Megara A.I. Used to fly support with
Dreadnoughts, dropships, and carriers as well as carry out
clandestine Missions in times of peace, keeping unseen with its
cloaking technology.

Craft Notes This craft is fully stocked and needs no mods.
This craft does have 1 flag for the cockpit which I will link either in the comments section or at the bottom of the page. Please read below for detailed flight instructions and craft info.

Weapons Systems

3 Weapon Hard Points
2 Small dock points, top, and nose
equipped with the Minerva Cannon
1 Medium dock point on the belly

Kraken Drive Thrust Indicators are located in the cockpit in FPV or on the back of the Craft for easy recognition.

Propulsion Systems

1 main Forward Propulsion Kraken Drive
1 Anti-Gravity Kraken Drive
1 Emergency nose down Kraken Drive.

Flight Instructions - Based on Kerbin but will work pretty much everywhere


The main throttle controls the Forward Propulsion Kraken Drive. This is a very powerful drive recommended to do incremental increase by pressing the shift key. At half throttle, this will be placed in a sustained flight mode. When a tick over half throttle at lower sea level your nominal flight speed will be around. 140 - 145 m/s The higher you go the faster you fly. Full throttle your speed will steadily increase based on your height. For instance, at around 12k you will be at supersonic speeds. Drop to half throttle to maintain whatever speed you want to be at._____________________________________________________________________________________
NOTE if for some reason you stall and cant raise the nose use the anti-gravity drive as well and it will auto-correct you for normal flight again. These are my fail safes for absolute 0 issues flying.


Once you are past the 12k range this is where you will start increasing speed exponentially this will send you flying into orbit in a short time. Make sure to practice normal flight procedures that you would do with any SSTO except you have no fuel so you can play around and not be scared.

Once in space make sure to only use RCS when getting ready to either dock or not using anti-gravity drive. Remember you can turn that drive off by pressing ACTION Group 3 RCS is used to docking or high-speed maneuvering in space combat.

Press the Trim keys I and K for the anti-gravity drive,. It is recommended that you hit Action Group 2 and then press Radial out and trim slowly. Since trim keys do not have a visible UI I created one with a KALl1000 and lights. This will be visible on the back as well.

Anti Gravity lights UI - Cockpit - Left Light- Back - Top Light
Forward Propulsion Kraken Drive - Cockpit - Right Light- Back - Bottom Light

Blue lights - OFF
Yellow light - Half Power
Green Light - Full Power

ACTION GROUP 1 will set flight controls from the cockpit for normal flight procedures.
ACTION GROUP 2 will set flight controls from the AI operator. This is great if you want to radial out to hover better in anti-gravity mode. this is set by default.

ACTION GROUP 3 will turn off the Forward Propulsion Kraken Drive
ACTION GROUP 4 Will turn off the Anti Gravity Drive
ACTION GROUP 5 Will Open Cockpit Canopy
ACTION GROUP 6 Emergency nose down Kraken Drive
ACTION GROUP 7 Turn on and off Fuel Cell Charger on by default
ABORT will turn off all KAL1000s when docked at a station or other craft
SPACE BAR will fire the Minerva Cannon

In conclusion, this craft can pretty much fly anywhere you want it, save for the sun, and will serve as your main battle force for air and space superiority.

A stock aircraft called KDF Hercules II. Built with 837 of the finest parts, its root part is strutCube.

Built in the SPH in KSP version 1.12.5.


  • Type: SPH
  • Class: spaceplane
  • Part Count: 837
  • Pure Stock
  • KSP: 1.12.5




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