Uh 60 ipc systems
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UH-60 IPC SYSTEMS. MIXING UNIT. MIXING UNIT. TLO: To reinforce basic system fundamentals for the UH-60 IPC. MECHANICAL MIXING UNIT. The mixing unit provides mechanical control mixing functions which minimize inherent control coupling and reduce pilot workload. MECHANICAL MIXING UNIT.

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UH-60 IPC SYSTEMS

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Uh 60 ipc systems

UH-60 IPC SYSTEMS

MIXING UNIT


Mixing unit

MIXING UNIT

TLO: To reinforce basic system fundamentals

for the UH-60 IPC.


Mechanical mixing unit

MECHANICAL MIXING UNIT

The mixing unit provides mechanical control

mixing functions which minimize inherent

control coupling and reduce pilot workload.


Mechanical mixing unit1

MECHANICAL MIXING UNIT


Mechanical mixing

MECHANICAL MIXING

  • Collective to Pitch

  • Collective to Roll

  • Collective to Yaw

  • Yaw to Pitch

  • Collective to Airspeed to Yaw


Collective to pitch

COLLECTIVE TO PITCH

Compensates for rotor downwash on the

stabilator. The mixing unit compensates

for this increased downwash by tilting

the rotor disk forward, or decreased

down wash by tilting the rotor disk aft.


Collective to roll

Collective to Roll

Compensates for a right rolling moment

(translating tendency). It tilts the rotor

disk to the left with increased collective

and reduces left tilt with decreased collective.


Collective to yaw

COLLECTIVE TO YAW

Compensates for torque effect. An increase

in collective causes and increase in tail rotor

pitch, while a reduction in collective results

in decreased tail rotor pitch.


Yaw to pitch

YAW TO PITCH

Compensates for the lift components of the canted

tail rotor. With increased pitch in the tail rotor (left

pedal), the main rotor disk is tilted aft, and with

reduced tail rotor pitch (right pedal), the main rotor

disk is tilted forward.


Collective airspeed yaw

COLLECTIVE-AIRSPEED-YAW

Collective to airspeed to yaw mixing helps compensate

for the torque effect in addition to collective to yaw

mechanical mixing by increasing or decreasing tail

rotor pitch by the use of the yaw trim actuator. This is

a function of the SAS/FPS computer.


Uh 60 ipc systems

COLLECTIVE-AIRSPEED-YAW

Collective to airspeed to yaw varies its inputs to the tail

rotor based on both collective position and airspeed signals.

From 0-40 knots, electronic coupling is at its maximum

input. As airspeed increases above 40 knots, the tail rotor

and the cambered vertical fairing become more efficient.

Electronic coupling decreases the amount of tail rotor pitch

programmed until 100 knots, where no electronic coupling is

incorporated.

100% Tail

Rotor Mixing

0 knots

40 knots

100 knots


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