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BEECHCRAFT King Air C90 

Equipped With: 

  Swept Blade Turbofan Propellers 

  Dual Aft Body Strakes 

  Increased Gross Weight 

  PT6A-28 Engines 

 

5-2 

Revision IR: August 15, 2017 

 

Document No. 16-206CGW-28 

 

DESCENT AND LANDING DATA 

 
Holding Time  .......................................................................................................................................  5-37 
Descent ................................................................................................................................................  5-38 
Balked Landing Climb  .........................................................................................................................  5-39 
Landing Distance Without Reversing  .................................................................................................  5-40 
 

 

INTRODUCTION 

 

The performance of all Beechcraft King Air C90 airplanes equipped with the Raisbeck Increased  Gross 
Weight System will perform to the graphs and charts in this section, up to a maximum takeoff gross weight of 
10,500 lbs and a maximum landing weight of 9,700 lbs. 
 
Federal Aviation Regulations for this class aircraft require only that the all-engines operating distance over a 
50 foot height be presented for take-off distance.  We include for your information accelerate-go, accelerate-
stop, climb-limited weight, net climb gradient, and other FAR 25 transport category information.  For data not 
shown in this section, refer to the Performance section of the Beechcraft POH. 
 
Takeoff RPM has been reduced to 1900 RPM, with maximum torque increased to 1520 ft-lbs  for all flight 
conditions.  

   

 
 
 

Summary of Contents for BEECHCRAFT KING AIR C90

Page 1: ...ght Manual Supplement for the KING AIR MODEL C90 S N LJ 527 thru LJ 1062 Equipped with Raisbeck Engineering Swept Blade Turbofan Propellers STC SA3593NM Dual Aft Body Strakes STC SA4010NM Increased Gross Weight STC SA3593NM and West Tennessee Aviation Installation of Pratt Whitney PT6A 28 Engines STC SA1206SO ...

Page 2: ...ane Flight Manual when Raisbeck Swept Blade Turbofan Propellers Dual Aft Body Strakes Increased Gross Weight and West Tennessee Aviation PT6A 28 Engines are installed in accordance with the STCs listed above The information contained in this document supplements or supersedes the basic manual only in those areas listed For limitations procedures and performance information not contained in this su...

Page 3: ...ugust 15 2017 Document No 16 206CGW 28 PILOT S OPERATING HANDBOOK AND FAA APPROVED AIRPLANE FLIGHT MANUAL SUPPLEMENT FOR THE BEECHCRAFT KING AIR MODEL C90 Original Issue August 15 2017 Title Page Pages i thru iii 1 1 2 1 thru 2 3 3 1 4 1 4 2 5 1 thru 5 40 6 1 and 7 1 LOG OF REVISIONS REV PAGE S DESCRIPTION FAA APPROVED DATE IR All Initial Release ...

Page 4: ...ument No 16 206CGW 28 Increased Gross Weight PT6A 28 Engines Revision IR August 15 2017 iii TABLE OF DIVISIONS SECTION I GENERAL SECTION II LIMITATIONS SECTION III EMERGENCY PROCEDURES SECTION IV NORMAL PROCEDURES SECTION V PERFORMANCE SECTION VI WEIGHT AND BALANCE SECTION VII SYSTEMS DESCRIPTION ...

Page 5: ...ights the areas of performance improvement which can be expected from your Raisbeck equipped King Air C90 After you have operated your Raisbeck equipped Beechcraft King Air C90 for a period of time we would like to hear your comments regarding our systems in service with your operation Please feel free to contact us at any time by mail or telephone Raisbeck Engineering Inc 4411 South Ryan Way Seat...

Page 6: ... 30 INCH STATION Reverse 10 0 0 5 Feathered 86 7 0 5 PROPELLER REVERSE SPEED LIMITS Do not select REVERSE until airspeed is below 95 KIAS WARNING PROPELLERS WILL NOT REVERSE AT AIRSPEEDS ABOVE 100 KIAS BETWEEN 95 KIAS AND 100 KIAS SIGNIFICANT THRUST ASYMMETRY MAY OCCUR IF REVERSE IS SELECTED PROPELLER ROTATIONAL SPEED LIMITS CAUTION Stabilized ground operation between 400 and 1 100 RPM is prohibit...

Page 7: ...system must be installed operational and armed prior to takeoff and landing CAUTION VMCA with one engine inoperative thrust lever at idle and propeller windmilling is 99 KIAS 101 KCAS AIRSPEED LIMITATIONS Air Minimum Control Speed VMCA 93 KCAS 91 KIAS AIRSPEED INDICATOR MARKINGS Red Radial Air Minimum Control Speed VMCA 93 KCAS FLIGHT LOAD FACTORS At the design gross weight of 10 500 lbs Maneuver ...

Page 8: ...Y LIMITS LANDING GEAR EXTENDED Aft Limit 160 0 inches aft of Datum at all weights Forward Limit at 10 500 lbs 154 8 inches aft of Datum 10 350 lbs 154 5 inches aft of Datum 10 100 lbs 154 0 inches aft of Datum 9 700 lbs 154 0 inches aft of Datum 9 168 lbs 151 4 inches aft of Datum 7 400 lbs or less 144 7 inches aft of Datum PLACARDS On Existing Overhead Panel in Pilot s Compartment MIN SINGLE ENGI...

Page 9: ... assured Normal Operation 18 to 24 amps 1 Zero Amps a Breaker Switch CHECK b If OFF reposition to ON after 30 seconds c If ON with zero amps system is inoperative Position switch to OFF 2 Zero to 18 Amps a Continue operation b If propeller imbalance occurs increase RPM briefly to aid in ice removal 3 24 to 29 Amps a Continue operation b If propeller imbalance occurs increase RPM briefly to aid in ...

Page 10: ...Heat Switch HEAT 2 Propeller De ice Ammeter CHECK 18 to 24 AMPERES Monitor for 2 minutes to assure automatic timer operation b In Flight 1 Propeller Heat Switch HEAT The system may be operated continuously in flight and will function automatically until the switch is turned to OFF 2 Relieve propeller imbalance due to ice by increasing RPM briefly and returning to the desired setting Repeat as nece...

Page 11: ...ures do not apply where they would conflict with Air Traffic Control clearances or instructions or where in the pilot s judgment an altitude of less than 2 000 feet is necessary to adequately exercise his duty to see and avoid other airplanes The corrected takeoff noise level of this airplane established in compliance with FAR Part 36 Appendix G Amdt 36 28 and ICAO Annex 16 Chapter 10 is 76 0 dB a...

Page 12: ... 5 6 Takeoff Distance Flaps 0 Two Engines 5 7 Accelerate Stop Distance 5 8 Accelerate Go Distance 5 9 Takeoff Climb Gradient One Engine Inoperative 5 10 Climb Two Engine Flaps Up 5 11 Climb One Engine Inoperative Flaps Up 5 12 Cruise Climb 5 13 CRUISE DATA Maximum Recommended Cruise Power Tables ISA 30 C 5 15 ISA 20 C 5 16 ISA 10 C 5 17 ISA 5 18 ISA 10 C 5 19 ISA 20 C 5 20 ISA 30 C 5 21 ISA 40 C 5...

Page 13: ... to the graphs and charts in this section up to a maximum takeoff gross weight of 10 500 lbs and a maximum landing weight of 9 700 lbs Federal Aviation Regulations for this class aircraft require only that the all engines operating distance over a 50 foot height be presented for take off distance We include for your information accelerate go accelerate stop climb limited weight net climb gradient ...

Page 14: ...CHCRAFT King Air C90 Equipped With Swept Blade Turbofan Propellers Dual Aft Body Strakes Increased Gross Weight PT6A 28 Engines Revision IR August 15 2017 5 3 Document No 16 206CGW 28 Section V Performance ...

Page 15: ...BEECHCRAFT King Air C90 Equipped With Swept Blade Turbofan Propellers Dual Aft Body Strakes Increased Gross Weight PT6A 28 Engines 5 4 Revision IR August 15 2017 Document No 16 206CGW 28 ...

Page 16: ...CHCRAFT King Air C90 Equipped With Swept Blade Turbofan Propellers Dual Aft Body Strakes Increased Gross Weight PT6A 28 Engines Revision IR August 15 2017 5 5 Document No 16 206CGW 28 Section V Performance ...

Page 17: ...W 28 MAX ALLOWABLE T O G W LBS 10350 10400 10450 10500 OUTSIDE AIR TEMPERATURE DEGREES C 40 30 20 10 0 10 20 30 40 MAX ALLOWABLE TAKE OFF GROSS WEIGHT ABOVE 10 350 LBS IN ORDER TO ACHIEVE PART 25 APPROACH CLIMB LANDING REQUIREMENTS EXAMPLE OAT AIRPORT PRESSURE ALTITUDE MAX ALLOWABLE T O G W 2 C 2 000 FT 10 475 LBS 6 00 0 FT 4 00 0 FT 2 00 0 FT S E A LE V E L PRESSURE ALTITUDE FEET ...

Page 18: ...CHCRAFT King Air C90 Equipped With Swept Blade Turbofan Propellers Dual Aft Body Strakes Increased Gross Weight PT6A 28 Engines Revision IR August 15 2017 5 7 Document No 16 206CGW 28 Section V Performance ...

Page 19: ...BEECHCRAFT King Air C90 Equipped With Swept Blade Turbofan Propellers Dual Aft Body Strakes Increased Gross Weight PT6A 28 Engines 5 8 Revision IR August 15 2017 Document No 16 206CGW 28 ...

Page 20: ...CHCRAFT King Air C90 Equipped With Swept Blade Turbofan Propellers Dual Aft Body Strakes Increased Gross Weight PT6A 28 Engines Revision IR August 15 2017 5 9 Document No 16 206CGW 28 Section V Performance ...

Page 21: ...BEECHCRAFT King Air C90 Equipped With Swept Blade Turbofan Propellers Dual Aft Body Strakes Increased Gross Weight PT6A 28 Engines 5 10 Revision IR August 15 2017 Document No 16 206CGW 28 ...

Page 22: ...HCRAFT King Air C90 Equipped With Swept Blade Turbofan Propellers Dual Aft Body Strakes Increased Gross Weight PT6A 28 Engines Revision IR August 15 2017 5 11 Document No 16 206CGW 28 Section V Performance ...

Page 23: ...BEECHCRAFT King Air C90 Equipped With Swept Blade Turbofan Propellers Dual Aft Body Strakes Increased Gross Weight PT6A 28 Engines 5 12 Revision IR August 15 2017 Document No 16 206CGW 28 ...

Page 24: ...HCRAFT King Air C90 Equipped With Swept Blade Turbofan Propellers Dual Aft Body Strakes Increased Gross Weight PT6A 28 Engines Revision IR August 15 2017 5 13 Document No 16 206CGW 28 Section V Performance ...

Page 25: ...g Air C90 Equipped With Swept Blade Turbofan Propellers Dual Aft Body Strakes Increased Gross Weight PT6A 28 Engines 5 14 Revision IR August 15 2017 Document No 16 206CGW 28 MAXIMUM RECOMMENDED CRUISE POWER SETTINGS ...

Page 26: ...HCRAFT King Air C90 Equipped With Swept Blade Turbofan Propellers Dual Aft Body Strakes Increased Gross Weight PT6A 28 Engines Revision IR August 15 2017 5 15 Document No 16 206CGW 28 Section V Performance ...

Page 27: ...BEECHCRAFT King Air C90 Equipped With Swept Blade Turbofan Propellers Dual Aft Body Strakes Increased Gross Weight PT6A 28 Engines 5 16 Revision IR August 15 2017 Document No 16 206CGW 28 ...

Page 28: ...HCRAFT King Air C90 Equipped With Swept Blade Turbofan Propellers Dual Aft Body Strakes Increased Gross Weight PT6A 28 Engines Revision IR August 15 2017 5 17 Document No 16 206CGW 28 Section V Performance ...

Page 29: ...BEECHCRAFT King Air C90 Equipped With Swept Blade Turbofan Propellers Dual Aft Body Strakes Increased Gross Weight PT6A 28 Engines 5 18 Revision IR August 15 2017 Document No 16 206CGW 28 ...

Page 30: ...HCRAFT King Air C90 Equipped With Swept Blade Turbofan Propellers Dual Aft Body Strakes Increased Gross Weight PT6A 28 Engines Revision IR August 15 2017 5 19 Document No 16 206CGW 28 Section V Performance ...

Page 31: ...BEECHCRAFT King Air C90 Equipped With Swept Blade Turbofan Propellers Dual Aft Body Strakes Increased Gross Weight PT6A 28 Engines 5 20 Revision IR August 15 2017 Document No 16 206CGW 28 ...

Page 32: ...HCRAFT King Air C90 Equipped With Swept Blade Turbofan Propellers Dual Aft Body Strakes Increased Gross Weight PT6A 28 Engines Revision IR August 15 2017 5 21 Document No 16 206CGW 28 Section V Performance ...

Page 33: ...BEECHCRAFT King Air C90 Equipped With Swept Blade Turbofan Propellers Dual Aft Body Strakes Increased Gross Weight PT6A 28 Engines 5 22 Revision IR August 15 2017 Document No 16 206CGW 28 ...

Page 34: ...HCRAFT King Air C90 Equipped With Swept Blade Turbofan Propellers Dual Aft Body Strakes Increased Gross Weight PT6A 28 Engines Revision IR August 15 2017 5 23 Document No 16 206CGW 28 Section V Performance ...

Page 35: ...BEECHCRAFT King Air C90 Equipped With Swept Blade Turbofan Propellers Dual Aft Body Strakes Increased Gross Weight PT6A 28 Engines 5 24 Revision IR August 15 2017 Document No 16 206CGW 28 ...

Page 36: ...HCRAFT King Air C90 Equipped With Swept Blade Turbofan Propellers Dual Aft Body Strakes Increased Gross Weight PT6A 28 Engines Revision IR August 15 2017 5 25 Document No 16 206CGW 28 Section V Performance ...

Page 37: ...ng Air C90 Equipped With Swept Blade Turbofan Propellers Dual Aft Body Strakes Increased Gross Weight PT6A 28 Engines 5 26 Revision IR August 15 2017 Document No 16 206CGW 28 MAXIMUM RANGE POWER SETTINGS AT 1750 RPM ...

Page 38: ...HCRAFT King Air C90 Equipped With Swept Blade Turbofan Propellers Dual Aft Body Strakes Increased Gross Weight PT6A 28 Engines Revision IR August 15 2017 5 27 Document No 16 206CGW 28 Section V Performance ...

Page 39: ...BEECHCRAFT King Air C90 Equipped With Swept Blade Turbofan Propellers Dual Aft Body Strakes Increased Gross Weight PT6A 28 Engines 5 28 Revision IR August 15 2017 Document No 16 206CGW 28 ...

Page 40: ...HCRAFT King Air C90 Equipped With Swept Blade Turbofan Propellers Dual Aft Body Strakes Increased Gross Weight PT6A 28 Engines Revision IR August 15 2017 5 29 Document No 16 206CGW 28 Section V Performance ...

Page 41: ...BEECHCRAFT King Air C90 Equipped With Swept Blade Turbofan Propellers Dual Aft Body Strakes Increased Gross Weight PT6A 28 Engines 5 30 Revision IR August 15 2017 Document No 16 206CGW 28 ...

Page 42: ...HCRAFT King Air C90 Equipped With Swept Blade Turbofan Propellers Dual Aft Body Strakes Increased Gross Weight PT6A 28 Engines Revision IR August 15 2017 5 31 Document No 16 206CGW 28 Section V Performance ...

Page 43: ...BEECHCRAFT King Air C90 Equipped With Swept Blade Turbofan Propellers Dual Aft Body Strakes Increased Gross Weight PT6A 28 Engines 5 32 Revision IR August 15 2017 Document No 16 206CGW 28 ...

Page 44: ...HCRAFT King Air C90 Equipped With Swept Blade Turbofan Propellers Dual Aft Body Strakes Increased Gross Weight PT6A 28 Engines Revision IR August 15 2017 5 33 Document No 16 206CGW 28 Section V Performance ...

Page 45: ...BEECHCRAFT King Air C90 Equipped With Swept Blade Turbofan Propellers Dual Aft Body Strakes Increased Gross Weight PT6A 28 Engines 5 34 Revision IR August 15 2017 Document No 16 206CGW 28 ...

Page 46: ...HCRAFT King Air C90 Equipped With Swept Blade Turbofan Propellers Dual Aft Body Strakes Increased Gross Weight PT6A 28 Engines Revision IR August 15 2017 5 35 Document No 16 206CGW 28 Section V Performance ...

Page 47: ...CRAFT King Air C90 Equipped With Swept Blade Turbofan Propellers Dual Aft Body Strakes Increased Gross Weight PT6A 28 Engines 5 36 Revision IR August 15 2017 Document No 16 206CGW 28 DESCENT AND LANDING DATA ...

Page 48: ...HCRAFT King Air C90 Equipped With Swept Blade Turbofan Propellers Dual Aft Body Strakes Increased Gross Weight PT6A 28 Engines Revision IR August 15 2017 5 37 Document No 16 206CGW 28 Section V Performance ...

Page 49: ...BEECHCRAFT King Air C90 Equipped With Swept Blade Turbofan Propellers Dual Aft Body Strakes Increased Gross Weight PT6A 28 Engines 5 38 Revision IR August 15 2017 Document No 16 206CGW 28 ...

Page 50: ...BEECHCRAFT King Air C90 Equipped With Swept Blade Turbofan Propellers Dual Aft Body Strakes Increased Gross Weight Revision IR August 15 2017 5 39 Document No 16 206CGW 28 Section V Performance ...

Page 51: ...BEECHCRAFT King Air C90 Equipped With Swept Blade Turbofan Propellers Dual Aft Body Strakes Increased Gross Weight PT6A 28 Engines 5 40 Revision IR August 15 2017 Document No 16 206CGW 28 ...

Page 52: ... 16 206CGW 28 Section VI Weight and Balance SECTION VI WEIGHT AND BALANCE CENTER OF GRAVITY LIMITS CENTER OF GRAVITY INCHES AFT OF DATUM 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 GROSS WEIGHT LBS 7000 7500 8000 8500 9000 9500 10000 10500 MAXIMUM TAKEOFF WEIGHT MAXIMUM LANDING WEIGHT MAXIMUM ZERO FUEL WEIGHT NOTE MAXIMUM RAMP WEIGHT 10 560 LBS ...

Page 53: ...to the high RPM low pitch hydraulic stop and reverse position The propellers have no low RPM high pitch stops this allows the blades to feather after engine shut down DUAL AFT BODY STRAKES The Raisbeck Dual Aft Body Strakes are mounted on the underside of the aft fuselage and replace the single ventral fin They are designed and engineered to attach and streamline the airflow over the aft body redu...

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