UH-60M Limits Flashcards
NG Limits
0-105% Continuous
105-106% 12sec Transient
NP1/NP2 Limits
91-95% Transient
95-101% Continuous
101-105% Transient
105-107% 12sec Transient
(20-40% and 60-90% Avoid Ranges)
NR Limits (POWER-ON)
91-95% Transient
95-101% Continuous
101-107% Transient
NR Limits (POWER-OFF)
90-105% Normal
105-110% Transient
110% Maximum
TRQ (Q) Limits (DUAL ENG)
0-120% Continuous (80KIAS or below)
120-144% 10sec Transient
0-100% Continuous (Above 80KIAS)
100-144% 10sec Transient
TRQ (Q) Limits (SINGLE ENG)
0-135% Continuous
135-144% 10sec Transient
Rotor Brake Limits
76% NR - EMER Max Rotor Speed
<40% NR - ENG Off 150-180psi for >12sec
450/690psi - MIN/MAX Brake Pressure for ENG Rotor Brake Start
TGT Limits
0-793deg Continuous 793-846deg 30min Limit 846-879deg 10min Limit 879-903deg 2.5min Transient 903-949deg 12sec Transient
851deg ENG Start Abort
ENG Oil TEMP Limits
-20-135deg Continuous
135-150deg 30min
ENG Oil PRESSURE Limits
22-26psi Idle
26-100psi Continuous
100-120psi 5min
XMSN Oil TEMP Limits
-20-105deg Continuous
105-140deg Precautionary
XMSN Oil PRESSURE Limits
20-30psi Idle/Transient
30-65psi Continuous
65-130psi Precautionary
45-60psi Steady State
Bank Limits
+/- 60deg Max Roll
+/- 30deg Max Pitch
30deg PRI SERVO Fail Caution
Backup Pump Operation Limits
TEMP OPERATE/COOLDOWN
-54-32deg Unlimited
33-38deg 24min / 72min
39-52deg 16min / 48min
Slope Limits
15deg Nose Up / Left / Right
6deg HH-60 Nose Up with FLIR
6deg Nose Down
-2deg Slope per 5kts Wind
15kts Max Tailwind
ENG Starter Limits
15deg or below: 1start-60sec-1start-3min-1start-60sec-1start-30min
Above 15deg-52deg: 1start-60sec-1start-30min
UH-60M Max Weight
UH-60M: 22000lbs
UH-60M External Lift: 23500lbs
Lift Missions above 22000lbs can only be flown w/ cargo hook loads 8000-9000lbs
Storage Compartment Max Capacity (lbs)
125lbs each
Max Load of 4x Cabin Ceiling Tiedown Fittings
4000lbs
Max Load of 17x Cargo Floor Tiedown Fittings
5000lbs in any direction
Max Load of 8x Net Restraint Rings
3500lbs in any direction
Max Weight for Cargo Hook
9000lbs
Max Weight for Rescue Hoist
600lbs
Max Airspeed OEI
130KIAS
Max Airspeed Autorotation
16825lbs or less: 150KIAS
> 16825lbs: 140KIAS
Auto-Stab Fail: 120KIAS
Recommended: 80KIAS
Max Airspeed SAS INOP
One SAS INOP: 170KIAS
Two SAS INOP: 150KIAS
Two SAS INOP in IMC: 140KIAS
Max Airspeed Hydraulic System INOP
One HYD System INOP: 170KIAS
Two HYD Systems INOP: 150KIAS
Two HYD Systems INOP in IMC: 140KIAS
Max Airspeed Landing Light
Extended prior to 130KIAS
MAX: 180KIAS
Max Airspeed Searchlight
Extended prior to 100KIAS
MAX: 180KIAS
Max Airspeed with Skis
155KIAS
Max Airspeed Cabin Doors Open
145KIAS
Must be below 80KIAS to open Cabin Doors in flight.
Max Airspeed Gunner/BAM Windows Open
170KIAS
BAM windows shall not be opened/closed above 120KIAS
Airspeed Limits - Manual Stabilator Control
Vne variable - RED ARC
Stabilator set FULL DOWN below 40KIAS
Stabilator set to 0deg above 40KIAS
Autorotations limited to 120KIAS
Landing Gear Limits
Touchdown Sink Rate
GROSS WEIGHT LEVEL / SLOPES
Up to 16825lbs: 540fpm/360fpm
Above 16825lbs: 300fpm/180fpm
Touchdown Speed Limit
60kts Ground Speed
Maneuver Limits w/ Rescue Hoist
Max Bank: 30deg
Rearward Flight: 35kts
Rate of Descent: 1000fpm
APU Operating Limits
43deg and above w/ ENG and Rotor operating: 30min
W/o ENG and Rotor Operating up to 51deg: Continuous
APU OIL HOT - 30min cool period req
BFT Temperature Limits
Normal Operating Range
-26deg - 71deg C
Max Airspeed (Vne)
193KIAS
High Speed Yaw
Abrupt Pedal Inputs
Avoid abrupt pedal inputs >80KIAS
Windshield Anti-Ice Limits
Windshield Anti-ice check shall not be done when FAT > 27deg C