GOVERNOR MODEL DESIGNATION

1. P = Propeller Governor
2. A = Internal Jihostroj´s marking
   Reserved digits: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9
3. B = Basic design arrangement:
   1 = I,CW (pressure to increase pitch, CW rotation facing governor base)
   (pressure to increase pitch, CCW rotation facing engine pad)
   2 = I,CCW (pressure to increase pitch, CCW rotation facing governor base)
   (pressure to increase pitch, CW rotation facing engine pad)
   3 = D,CW (pressure to decrease pitch, CW rotation facing governor base)
   (pressure to decrease pitch, CCW rotation facing engine pad)
   4 = D,CCW (pressure to decrease pitch, CCW rotation facing governor base)
   (pressure to decrease pitch, CW rotation facing engine pad)
4. C = Special design arrangement:
   0 = Standard
   1 = Feathering
   3 = Electronic control
   4 = Connection to accumulator
5. X = Application number defining settings of governor – relief valve pressure, max. RPM, control arm travel and position etc.
6. Y = Control head model:
   A = Axial, adjustable type head - short
   B = Axial, adjustable type head - long
   AL = Axial, adjustable type head - short , reverse arrangement

NOTE:

For JIHOSTROJ unknown reason, MT PROPELLER has started to designate it´s propeller governors in a similar way as JSV did before already. They are using similar coding as P-850-X, P-860-X, P-870-X, P-880-X, P-9()()-(), etc.
Please note that MT governors have different design and are manufactured by MT! 
Please consult the governor nameplate for governor origin!