77I- Turbo-Electric Hybrid Propulsion
by Azimech
uploaded 2017-09-17
115 downloads /
16
points
SPH
stock ship
#Gas #Turbine #Torque #Powerful

Turbo-Electric Power, Baby!

You’ll find no cheaty reaction wheels in this one.

Some specs.

Fully reversible engine, no gearbox needed.
Forward and reverse blowers: 8 Panthers in dry mode.
Max safe engine/shaft speed: 300 rpm (31 rad/s).
Top speed: 24 knots (46 kph, 12.7 m/s.)
Part count total: 551.
Part count engine: 151.
Mass w/tanks empty: 268t.
Mass w/tanks at 10%: 308t (suggested).
Mass engine: 38t.

Instructions:

  1. Starting: press stage only once. Now you can toggle the blowers. 1 toggles the forward blowers, 2 toggles the reversing blowers. Lower throttle to 5% to be on the safe side, if the propeller is spinning in open air.

  2. If you start the engine with throttle at full, prepare for a big explosion or RUD. Always increase throttle gently.

  3. Change focus (left, once) and select a propeller blade. Pin it to the screen.

  4. Return focus to main. Now change the control authority until the ship starts to move. Gentle changes, especially in the water. Top efficiency is in a very narrow range.

  5. When entering the water, make sure you use a shallow angle. This means, driving close to perpendicular to the shore line. Before the propeller blades hit the water, make sure the engine has stopped. The brakes work both on the engine shaft and landing gear. If you use VesselMover or Hyperedit, first hack the gravity to 0.1.

  6. When in the water, you may throttle up to 100% power. Recommended: increase to 25%, then 50%, 75%, 100%.

  7. Use trim forward (pitch down) to increase the power of the electric drive. Its power is very modest compared with the turbine but otherwise the electrical power from the jets is wasted anyway. Additional power will be supplied by the fuel cell arrays.

  8. If you overrev it, it will fail. Propeller blades start hitting the hull. You don’t want to be near when that happens. I recommend to install V.O.I.D. to have a proper readout of the engine speed, in rad/s.

  9. Parking it: cut throttle. Set parking brake. When the ship is 100% dead in the water with the shaft completely stopped, you can save the game or leave.

  10. Recommended throttle setting: 90%. Not recommended: use of the afterburners. Yes, it increases top speed at the expense of ludicrous fuel consumption. It also increases the risk of a failed bearing or a gigantic SMEF.

  11. The torque this engine makes is gigantic. The whole ship has a few degrees list and an tendency to turn to the right. Keep a bow thruster running.

Built in the SPH in KSP version 1.3.0.

Details

  • Type: SPH
  • Class: ship
  • Part Count: 551
  • Pure Stock
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