by NoobTool
uploaded 2017-08-25
(updated 2017-09-18)
stock aircraft

Broken since 1.4. New 1.4+ compatible version available here: https://kerbalx.com/NoobTool/Wyvern-Redux
-Wyvern now comes standard with retractable grapple for moving slung payloads.
-Translation only Vernor based RCS added for fine hover control.
-Improved TurboNoob engines offer increased reliability/durability, as well as higher GVWR (~160tons) and improved throttle response.
-Red position indicator spotlight added on grapple, making grabbing slung payloads easier than ever.
-Flight manual at page bottom.


A stock aircraft called Wyvern. Built with 251 of the finest parts, its root part is mk3Cockpit.Shuttle.

Built in the SPH in KSP version 1.3.0.


  • Type: SPH
  • Class: aircraft
  • Part Count: 251
  • Pure Stock

Flight manual
Lift off:

  1. Ensure landing gear (rotor deflection compensators) are stowed (note: landing gear should always be stowed before docking/undocking any part of the craft)

  2. Throttle up and stage to release the rotors and engage blowers.

  3. AG 1 toggles heavy lift mode (required for lift off with GVW above ~90 tons).

Forward flight:

  1. Transition to forward flight by pressing AG 2 to toggle forward flight engines and deploy rotor deflection compensators. When the craft reaches ~20m/s disengage heavy lift mode (if currently in use). The craft will have a tendency to pull up hard during transition to forward flight. Keep the nose down. Flight pattern should stabilize around 100-120m/s depending on GVW and COM.

  2. Flaps (AG 5) can be helpful during forward flight transition and for maintaining altitude with heavy loads. Likewise, it may be necessary to use heavy lift mode (AG 1) during forward flight to maintain altitude. Either engage heavy lift mode and throttle down until the flight pattern becomes stable, or pulse heavy lift mode on and off to maintain altitude.

  3. It is recommended to use roll/pitch to make turns. Yaw inputs have a tendency to introduce heavy counter-roll (which can confuse SAS).

  4. AG 6 toggles thrust reversers on forward flight engines. This can be useful when approaching an LZ.

Cargo Grapple:

  1. Cargo grapple should only be operated during hover with landing gear stowed. Once cargo is secured to the grapple, it is safe to transition to forward flight (use caution).

  2. AG 3 toggles grapple between stowed and deployed positions (note: anytime docking occurs, throttle will revert to zero, be prepared to correct throttle after changing position of the grapple).

  3. AG 4 toggles arm/disarm on the Klaw.

  4. Translation only RCS (J,K,L,I,H,and N keys) allows for fine hover control.


  1. After landing the craft, use brakes on the landing gear to slow rotor spin.

  2. Once rotors have slowed sufficiently, stow landing gear.
    AG 0 toggles the parking brake. Once set, it is safe to change craft, quicksave, timewarp, etc.

  3. Upon returning, simply toggle the parking brake off (AG 0), and operate as usual.

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