Spear 3
by c_space
uploaded 2016-06-08
8 downloads /
1
points
VAB
mod lifter
#Lifter #reusable #LKO #ballistic-RTLS

Details

  • Type: VAB
  • Class: lifter
  • Part Count: 31
  • Mods: 6
KSP 1.1.2

Mods

  • Aviation Lights
  • Fuel Tanks Plus
  • KAL9000
  • Near Future Propulsion
  • Squad (stock)
  • Ven’s Stock Part Revamp

(Near Future Propulsion simply provides Argon tanks used as test payload mass)

Additional Mods

  • Kerbal Joint Reinforcement - can’t be bothered with struts

  • kOS - ascent guidance

  • Trajectories & Waypoint Manager - descent, still manual

  • Stock Bug Fix Modules - it helps

LKO Lifter Spear 3 in a nutshell

  • Payload capability: 3 t, 75 km LKO

  • Ascent dV < 3100 m/s

  • Return-to-launch-site, reusable

  • Guided ascent, powered by kOS: gravity turn, hold time-to-AP

  • Full orbital delivery: payload released to stable LKO

  • Ballistic descent, drogue chute braking, hoverslam touchdown

Spear Lifter Design Goals

  • Orbital delivery: payload is released in stable orbit

  • Reusabilty: single-stage, RTLS lifter

  • Reliable time-to-orbit

  • Efficient dV-budget

  • Off-the-clock lifter, payload first!

  • Reliable, low-interaction, low-propellant descent

Total mass 28 t
Engine mass 3 t
Structural mass 4 t
Propellant mass 18 t
Lifter total mass 25 t
Payload mass 3 t
Launch mass 28 t
Return mass 7 t
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