Tail and Rotor Fold/Unfold Operations

Tail Fold / Unfold

The MH60 features a folding tail boom, allowing the aircraft to reduce its footprint for shipboard or hangar storage. This function is fully animated and can be controlled via in-cockpit switches.

  • Aircraft must be on the ground, both engines off, Rotor RPM must be zero to enable Tail Fold.

  • Aircraft must be energized, either with Battery, APU or GPU, for both Folding and Unfolding.

  • Tail Fold is available on Sierra, Romeo and Tango variants.

  • Engines will not start (Starter disengages automatically) if the tail is folded.

Operation:

  1. Ensure the aircraft is on the ground with the engines off.

  2. Set Parking Brake.

  3. On Pilot's Side Keyset, [CONFIG] Page, press TAIL FOLD. The option is crossed out if conditions are not met.

  4. The tail folding sequence will start automatically. Once completed, the keyset option changes to TAIL *UNFLD*

  5. To unfold, press the TAIL *UNFLD* button. The sequence starts automatically until the surfaces are unfolded and locked in place.

Pilot's Side Keyset - [CONFIG] Page, TAIL FOLD Option.

Rotor Blade Fold / Unfold (TEMPORARILY DISABLED)

The MH60's main rotor blades can be folded for compact storage. This system is independent of tail folding and does not necessarily require the tail to be folded.

  • Aircraft must be on the ground, both engines off, Rotor RPM must be zero to enable Rotor Fold.

  • Aircraft must be energized, either with Battery, APU or GPU, for both Folding and Unfolding.

  • Rotor Fold is available on Sierra, Romeo and Tango variants.

  • Engines will not start (Starter disengages automatically) if the rotors are folded.

Operation:

  1. Ensure the aircraft is on the ground with the engines off.

  2. Set Parking Brake.

  3. Engage Master Blade Fold switch, located in the aft section of the centre console, on the Copilot Side, Blade Fold Panel.

  4. Use the Blade Fold Switch to fold/spread the rotors.

    1. Moving the switch from OFF to FOLD energizes the system and starts the Blade Folding sequence. The Status lights will indicate the status and position of the blades.

    2. Moving the switch from OFF to SPREAD energizes the system and starts the Blade Unfolding sequence. The Status lighs "FLIGHT" and "SPREAD" indicate the rotors are extended and locked for engine start.

Blade Fold Panel

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