Thunderbird 2 (TB4)
by logandwj
uploaded 2016-03-30
mod aircraft
#Cargo #Large #Replica #Submarine #Aircraft


A mod aircraft called Thunderbird 2 (TB4). Built with 168 of the finest parts, its root part is mk4cockpit-1.

Built in the SPH in KSP version 1.0.5.


  • Type: SPH
  • Class: aircraft
  • Part Count: 168
  • Mods: 15


  • Adjustable Landing Gear
  • B9 Aerospace Parts Pack
  • B9 Aerospace Procedural Parts
  • BDynamics Mk22 Cockpits
  • Ballistanks
  • KW Rocketry
  • Kerbal Attachment System
  • Lack Luster Labs
  • Magic Smoke Industries Infernal Robotics
  • Mark IV Spaceplane System
  • QuantumStrutsContinued
  • RasterPropMonitor
  • Squad (stock)
  • Stockalike Station Parts Expansion
  • TweakScale - Rescale Everything!

This is a craft file containing a pre-made version of Thunderbird 2 with Thunderbird 4 already docked inside ready for launch.

I needed to simplify the action groups so that TB2 and TB4’s action groups wouldn’t interfere with each other. That meant taking out the usual action keys I assign to the Infernal robotics Parts. You’ll need to use the independent IR UI in order to use those. I did make the IR sub-groups separate with recognizable names for functions so it should be clear.

Generally speaking, I don’t recommend any attempt at Vertical take-off with TB4 inside. Use a standard runway launch. But when you’ve burned off (or dumped) fuel load down to 50% you should be safe to make a VTOL landing/ditch in the ocean in order to launch TB4 out of the bay.

IMPORTANT NOTE. You MUST deactivate all the Quantum struts and use the Drop Arm to lower TB4 beyond the confines of the cargo bay before releasing the docking port clamp. Also - use the ballast tanks to take on water BEFORE doing all of this so that TB-4 will drop smoothly away from TB2 into the water instead of popping back UP into the bay like a cork! That’ll cause an UDE for certain (Explosions, breaking of the craft, etc.

Once TB2 has released TB4 and has a lower weight fuel load, it’s possible to take off from the water using the VTOL jets, but you likely can’t take straight off and up. Instead use both the main rear engines and the VTOLs in concert to angle up and break free of the water to gain speed.

It may be possible to re-dock TB4 to TB2 while in the water - but I offer no guarantees on how well this will work.

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