Blade/Pylon Fold Control Panel

Question 1

Location

Answer 1

Right overhead console

Question 2

Function

Answer 2

Contains 5 control switches

Question 3

Master power switch

Answer 3

Controls all functions of the blade/pylon fold control control panel
Energizes safety valve

Question 4

Pitch lock switch

Answer 4

Energizes the pitch lock valve for engaging and disengaging
Energizes 1st and 2nd stage isolation valves

Question 5

Blade fold/spread switch

Answer 5

Energizes the blade fold control valve for folding and spreading the MRBs

Question 6

Blade fold position switch

Answer 6

Energizes the positioning valve for positioning during blade fold only
Depends on the #13 slip ring position

Question 7

Caution light: Pylon unsafe for flight

Answer 7

Indication conditions for flight havent been met

Question 8

Caution lights: Pitch locks engaged

Answer 8

All 6 pitch locks are fully extended

Question 9

Caution light: Safety Valve Open

Answer 9

Hydraulic pressure available to PPPB

Question 10

Advisory light: Blades Folded

Answer 10

All six blade folded micro switches actuated

Question 11

Advisory light: Pitchlocks advanced

Answer 11

When any one are actuated

Question 12

Advisory light: Head in fold

Answer 12

13 slip ring in position for blade/pylon fold

Question 13

Advisory Lights: Blades Spread

Answer 13

All 12 blade spread micro switches are actuated

Question 14

Advisory light: Flight ready

Answer 14

Safe for flight