OH-58A/C Limits BWS

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Author:
jhart728
ID:
29909
Filename:
OH-58A/C Limits BWS
Updated:
2010-08-14 23:22:19
Tags:
OH 58A Limits BWS
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OH-58A/C Limits BWS
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  1. Engine Oil Pressure
    • 50 PSI Minimum
    • Idle to 78% N1 (50-130 PSI)
    • Above 78 to 89% N1 (90-130 PSI)
    • Above 89% N1 (115-130 PSI)
    • 130 PSI Maximum

    • NOTE - Disregard yellow and green instrument markings for eng oil pressure.
    • CAUTION - During cold weather starts pressure may go to 150 PSI but you must remain at idle position until normal limits are attained.
  2. Airspeed
    • 0 to 120 knots
    • 120 knot IAS maximum
    • 100 knots IAS recommended maximum for autorotations
    • 100 knots IAS maximum with any door removed
    • Sideward flight limits 35 knots
    • Rearward flight limits 30 knots
  3. Rotor Tachometer
    • 93% Minimum
    • 49 to 58% Continuous Operation Prohibited
    • 93 to 110% Normal Operation
    • 110% Maximum
  4. Engine Tachometer, N2
    • 98 to 100%
    • 100% Maximum
    • 15 seconds maximum transient N2 is 110% (autorotation)
    • Avoid Steady-State Conditions Between 78-88% N2
  5. Torque Meter
    • 0 to 85% Normal Operation
    • 85 to 100% 5 minute Operation
    • 100% maximum
  6. Turbine Outlet Temp (TOT)
    • 300o C Maximum
    • 300o C to 738o C Normal Operations
    • Above 738o to 810o C 30 Minutes Limit
    • 810o C to 843o C During power transient, 6 seconds Maximum
  7. Gas Producer, N1
    • 62 to 105 % Normal Operation
    • 105% maximum
    • 105 to 106% Permissible for 15 Seconds

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