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43 Cards in this Set
- Front
- Back
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Airspeed limitations, How fast can a jetranger go? |
It is a matter of pressure altitude, density altitude,gross weight, power setting and door configuration. Below 3000 feet pressure altitude, Below 3000 lb Vne is 130 knots. Below 3000 lb but above 3000 feet P.A., Airspeed decreases 3.5 Kias per 1000 ft altitude gain. With a ceiling of 20000 ft Weight above 3000 lbs Vne = 122 knots with a decrease of 7 KIAS per thousand feet altitude gain above 3000 feet density altitude. With a ceiling of 13500 D.A Aft door(s) off max airspeed 87 KIAS Power setting 85-100% takeoff range 80 KIAS Vne Weight on the hook and over 3000 78kias Front door(s) off Vne 69 |
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What happens if you exceed airspeed limits doors off? |
Air speed in excess of are speed limits (doors off ) will cause cyclic fore and aft stick reversal and fuselage buffeting |
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What is fuselage buffeting? |
Fuselage buffeting due to uneven air flow |
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Weight limitations? |
3200 lb interior 3350lb external. Weight above 3200 pounds shall not be imposed on the landing gear |
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Gas producer (N1) rpm limits |
Max 105% 106% for 15 seconds |
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Minimum front seat weight |
170 lb |
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Torque Limits |
Takeoff 100% (5 minute limit) Transient 110% (5 second limit. Intentional use prohibited) Maximum continuous 85% |
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Turbine Outlet Temperature (TOT) Limits |
Max continuous 738°C Take off 810°C (5 minute limit). During Power Transient - 810 to 843°C (6 seconds maximum. Intentional use prohibited). During starting and shutdown 810 to 927°C 10-seconds maximum
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Rolls Royce Model 250-C20B Oil Pressure Limits |
Minimum 50 psi below 78.5% gas producer rpm Minimum 90 psi between 78.5 and 94.2 Minimum 115 psi Above 94.2% Maximum 130 psi |
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Engine Oil Temperature Limits |
Continuous operation 0 to 107°C Max 107 |
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Fuel Pressure Limit |
Minimum 4.0 psi Maximum 30.0 psi Fuel boost pump on during engine operations |
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Engine Starter Limits |
Starter run time With external power 25 seconds on 30 seconds off 25 seconds on 30 seconds off 25 seconds on 30 minutes off
Battery 40 seconds on 40 seconds on 60 seconds off 40 seconds on 60 seconds off 40 seconds on 30 minutes off
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Engine Anti-Ice Limitations |
Engine anti-ice shall not be used in ambient temperatures above 4.4°C (40° F) Engine anti-ice shall be on for flight in visible moisture and temperatures 4.4° C 40°F |
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Transmission Oil Limits |
Pressure Minimum 30 PSI Continuous operation 30 to 50 PSI Maximum 70 PSI
Temperature Continuous operation 15 to 110° C Maximum 110° C |
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Rotor (NR) Limitations |
Power on
Maximum 100% Minimum 97% Transient rotor droop 95% for 5 seconds 50 to 60% (accelerate through this range rapidly as possible cyclic in the neutral. |
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Loadmeter Limit |
Maximum 70% |
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Cargo area limitations |
Max allowable weight 250 Maximum 86 lbs per square foot |
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Power On Rotor RPM Limits |
97 to 100% Transient 95% for 5 seconds |
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Transient rotor RPM? |
95% |
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Power Off Rotor RPM Limits |
90 to 107% |
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Vne in an auto? |
100 knots |
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Engine Oil Pressure Limits |
Minimum 50 Below 78.5% N1 50 PSI 78.5- 94.2% N1 90 PSI min 94.2% and up 115 min 130 max |
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How much do you take from the hover ceiling with engine anti-ice on |
In ground effect 220 lbs Out of ground effect 295 lbs |
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How much wind can it take? |
17 knotes in any direction |
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How much does it weigh |
1864 lbs |
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How much down pressure can be applied to the rotor blades? |
Not exceed 100 lbs |
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How many gallons does the fuel tank hold |
91 |
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How much unusable fuel is there? |
With both boost pumps working 1.03 gal Unusable with boost inoperable 10 |
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Are you allowed to mix oils |
Not different specs - flush then refill with proper spec oil Different brand is ok as long as both have same specs and don't fog |
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What kind of oil does the engine take |
Mobile jet 254 |
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Max weight on the hook? |
1500 lbs |
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Additional required equipment operating in falling or blowing snow |
Particle separator Auto-relight Snow baffles Engine and pitot heat |
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What are the timed limits for the snow baffles, how do you reset the time? |
Hover no more than 20 minutes Idle no more than 5 minutes Both in falling or blowing snow To reset check inlet and cabin roof for ice snow slush ect |
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With snow baffles installed what visibility is acceptable in falling or blowing snow |
Below 1/2 Mile prohibited |
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At what temperature must snow baffles be removed? |
80°F |
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What action must be taken when in falling or blowing snow and not operating |
Inlet covers installed |
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When to the left of the appropriate power line what is the performance deduction with snow baffles installed |
Hover 120 lbs light Rate of climb 170 fpm less |
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When must the pulse light be turned off |
At night within 200 ft agl In clouds |
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What kind of hydraulic oil does it take |
Red 5606 |
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To what altitude is the radar altimeter valid |
2500 feet Max 1500 ft in a bank of 20 degrees or less Below 1500 30 degrees Bank |
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What shaft horsepower does the engine produce and what is it derated to |
420 317 for Transmission Max continuous 270 |
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CG limits |
106.0 to 114.2 front doors on 106.0 to 110.0 front doors off -3 to the left +4 to the right
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What type of oil do the main and tail rotor transmissions take |
Areoshell 555 |
