INSTALLATION OF SADDLE TANKS FOR BEECHCRAFT KING AIR AIRPLANES

2. Maximum allowed fuel imbalance between left and right side Saddle Tanks is 300 pounds (45 gallons). Airplanes equipped with Saddle Tanks Plus system. 3. Maximum allowed fuel imbalance between left and right side Saddle Tanks Plus is 100 pounds (15 gallons). 4. Maximum weight of cargo carried inside each Saddle Tank Plus storage compartment is 100 pounds. Continued on next page SECTION 2 CENTEX AEROSPACE 045-1 LIMITATIONS AIRPLANE FLIGHT MANUAL SUPPLEMENT MARCH 2015 2-4 PLACARDS 1. On top of each Saddle Tank adjacent to the fuel filler cap; or, on top of each Saddle Tank Plus adjacent to the fuel filler cap. 2. Vent line drain valve. On underside of wing outboard of main landing gear fairing. 3. Sump drain valve On inboard rear side of Saddle Tank (Standard Saddle Tanks) Or, on underside of wing inboard of main landing gear fairing (Saddle Tanks Plus) FUEL DRAIN FUEL DRAIN SADDLE TANK FUEL USE JET FUEL SEE PILOTS OPERATING MANUAL FOR FUEL DESIGNATIONS CAPACITY 60 U.S. GAL WITH WINGS LEVEL MAIN & AUXILIARY TANKS MUST BE FULL BEFORE FILLING SADDLE TANKS SADDLE TANK FUEL USE JET FUEL SEE PILOTS OPERATING MANUAL FOR FUEL DESIGNATIONS CAPACITY 95 U.S. GAL WITH WINGS LEVEL MAIN & AUXILIARY TANKS MUST BE FULL BEFORE FILLING SADDLE TANKS CENTEX AEROSPACE 045-1 SECTION 2 AIRPLANE FLIGHT MANUAL SUPPLEMENT LIMITATIONS MARCH 2015 2-5 4. Fuel line drain valve On bottom of main landing gear rear fairing. 5. On inside of Saddle Tank Plus storage door. 6. On top of each auxiliary tank adjacent to the fuel filler cap. CAUTION DO NOT OPEN AUX TANK CAP IF THERE IS FUEL IN THE SADDLE TANK COMBINED WEIGHT OF CARGO MUST NOT EXCEED 100 POUNDS CARGO MUST BE SECURELY FASTENED BEFORE FLIGHT DO NOT LEAVE DOOR UNLATCHED LATCH DOOR WHEN CLOSED FUEL DRAIN SECTION 2 CENTEX AEROSPACE 045-1 LIMITATIONS AIRPLANE FLIGHT MANUAL SUPPLEMENT MARCH 2015 2-6 THIS PAGE IS INTENTIONALLY BLANK CENTEX AEROSPACE 045-1 SECTION 4 AIRPLANE FLIGHT MANUAL SUPPLEMENT NORMAL PROCEDURES MARCH 2015 4-3 PROCEDURES BY FLIGHT PHASE Steps marked with an * may be omitted except for first flight of the day and after adding fuel to the Saddle Tanks. PREFLIGHT INSPECTION Add the following steps. COCKPIT After Fuel Quantity (main & auxiliary)…..CHECK Saddle Tanks Fuel Quantity Indicators ..................... CHECK FUEL QUANTITY LEFT WING Saddle Tank Filler Cap ........................................................................ SECURE * Saddle Tank Sump ............................................................................... DRAIN * Saddle Tank Fuel Line .......................................................................... DRAIN * Saddle Tank Vent Line ......................................................................... DRAIN Airplanes with Saddle Tanks Plus Saddle Tank Storage Door ......................................... CLOSED AND LATCHED RIGHT WING Saddle Tank Filler Cap ........................................................................ SECURE * Saddle Tank Sump ............................................................................... DRAIN * Saddle Tank Fuel Line .......................................................................... DRAIN * Saddle Tank Vent Line ......................................................................... DRAIN Airplanes with Saddle Tanks Plus Saddle Tank Storage Door ......................................... CLOSED AND LATCHED Do not open the auxiliary tank cap if there is fuel in the Saddle Tank. Opening the cap and the anti-siphon valve (flapper) can result in fuel flowing out of the auxiliary tank if the Saddle Tank contains fuel. CAUTION NOTE Refer to all applicable Supplements for flight phase procedures for optional equipment installed in the airplane. The procedures listed below are required for airplanes modified by the installation of the CenTex Aerospace Saddle Tanks STC. SECTION 4 CENTEX AEROSPACE 045-1 NORMAL PROCEDURES AIRPLANE FLIGHT MANUAL SUPPLEMENT SEPTEMBER 2014 4-4 THIS PAGE IS INTENTIONALLY BLANK CENTEX AEROSPACE 045-1 SECTION 6 AIRPLANE FLIGHT MANUAL SUPPLEMENT WEIGHT & BALANCE MARCH 2015 6-1 SECTION 6 WEIGHT AND BALANCE TABLE OF CONTENTS SUBJECT PAGE SADDLE TANKS WEIGHT AND MOMENT TABLE KING AIR 200 SERIES AND KING AIR 300 ................................................. 6-3 KING AIR B300 (350) ............................................................................... 6-3 USABLE FUEL ................................................................................................... 6-4 UNUSABLE FUEL .............................................................................................. 6-4 UN-DRAINABLE FUEL ...................................................................................... 6-4 SADDLE TANKS PLUS WEIGHT AND MOMENT TABLE KING AIR 200 SERIES AND KING AIR 300 ................................................. 6-5 KING AIR B300 (350) ............................................................................... 6-6 USABLE FUEL ................................................................................................... 6-6 UNUSABLE FUEL .............................................................................................. 6-6 UN-DRAINABLE FUEL ...................................................................................... 6-6 SECTION 6 CENTEX AEROSPACE 045-1 WEIGHT & BALANCE AIRPLANE FLIGHT MANUAL SUPPLEMENT SEPTEMBER 2014 6-2 THIS PAGE IS INTENTIONALLY BLANK CENTEX AEROSPACE 045-1 SECTION 6 AIRPLANE FLIGHT MANUAL SUPPLEMENT WEIGHT & BALANCE MARCH 2015 6-3 SADDLE TANKS WEIGHT AND MOMENT TABLE The table below provides the weight and moment of fuel carried in the Saddle Tanks. Use this weight and moment information when calculating the aircraft weight and balance. King Air 200 Series and King Air 300 Fuel per Tank Gallons Total Fuel Gallons Total Weight * Pounds Moment * Inch-lbs/100 5 10 67 168 10 20 134 329 20 40 268 635 30 60 402 943 40 80 536 1246 50 100 670 1545 60 120 804 1840 70 140 938 2133 80 160 1,072 2425 90 180 1,206 2715 95 190 1,273 2860 King Air B300 (350) Fuel per Tank Gallons Total Fuel Gallons Total Weight * Pounds Moment * Inch-lbs/100 5 10 67 178 10 20 134 348 20 40 268 674 30 60 402 1001 40 80 536 1323 50 100 670 1641 60 120 804 1956 70 140 938 2268 80 160 1,072 2579 90 180 1,206 2889 95 190 1,273 3044 * Based on Jet-A turbine fuel at 6.7 lbs/gal. SECTION 6 CENTEX AEROSPACE 045-1 WEIGHT & BALANCE AIRPLANE FLIGHT MANUAL SUPPLEMENT MARCH 2015 6-4 USABLE FUEL PER TANK 95 Gallons UNUSABLE FUEL PER TANK 0.7 Gallons UN-DRAINABLE FUEL PER TANK 0.15 Gallons - Saddle Tanks Plus Information Continued On Next Page - CENTEX AEROSPACE 045-1 SECTION 6 AIRPLANE FLIGHT MANUAL SUPPLEMENT WEIGHT & BALANCE MARCH 2015 6-5 SADDLE TANKS PLUS WEIGHT AND MOMENT TABLE The tables below provide the weight and moment of fuel and cargo carried in the Saddle Tanks Plus. Use this weight and moment information when calculating the aircraft weight and balance. King Air 200 Series and King Air 300 Fuel per Tank Gallons Total Fuel Gallons Total Weight * Pounds Moment * Inch-lbs/100 5 10 67 148 10 20 134 293 20 40 268 577 30 60 402 859 40 80 536 1141 50 100 670 1422 60 120 804 1699 Cargo per Tank Pounds Moment Inch-lbs/100 25 60 50 120 75 180 100 240 * Based on Jet-A turbine fuel at 6.7 lbs/gal. SECTION 6 CENTEX AEROSPACE 045-1 WEIGHT & BALANCE AIRPLANE FLIGHT MANUAL SUPPLEMENT MARCH 2015 6-6 SADDLE TANKS PLUS WEIGHT AND MOMENT TABLE King Air B300 (350) Fuel per Tank Gallons Total Fuel Gallons Total Weight * Pounds Moment * Inch-lbs/100 5 10 67 158 10 20 134 312 20 40 268 616 30 60 402 917 40 80 536 1218 50 100 670 1518 60 120 804 1815 Cargo per Tank Pounds Moment Inch-lbs/100 25 64 50 127 75 191 100 254 * Based on Jet-A turbine fuel at 6.7 lbs/gal King Air 200 Series, King Air 300, and King Air B300 (350) USABLE FUEL PER TANK 60 Gallons UNUSABLE FUEL PER TANK 0.75 Gallons UN-DRAINABLE FUEL PER TANK 0.15 Gallons CENTEX AEROSPACE 045-1 SECTION 7 AIRPLANE FLIGHT MANUAL SUPPLEMENT SYSTEMS DESCRIPTION MARCH 2015 7-1 SECTION 7 SYSTEMS DESCRIPTION TABLE OF CONTENTS SUBJECT PAGE SADDLE TANKS (190 GALLON) ........................................................................ 7-3 SADDLE TANKS FUEL SYSTEM ............................................................... 7-3 FUEL QUANTITY INDICATOR SYSTEM .................................................... 7-7 SADDLE TANKS PLUS (120 GALLON + STORAGE COMPARTMENT) ................. 7-9 SADDLE TANKS PLUS FUEL SYSTEM......................................................... 7-9 FUEL QUANTITY INDICATION SYSTEM .................................................. 7-13 SADDLE TANK PLUS STORAGE COMPARTMENT .................................... 7-14 SECTION 7 CENTEX AEROSPACE 045-1 SYSTEM DESCRIPTION AIRPLANE FLIGHT MANUAL SUPPLEMENT MARCH 2015 7-2 THIS PAGE IS INTENTIONALLY BLANK CENTEX AEROSPACE 045-1 SECTION 7 AIRPLANE FLIGHT MANUAL SUPPLEMENT SYSTEMS DESCRIPTION MARCH 2015 7-3 SADDLE TANKS (190 GALLONS) SADDLE TANKS FUEL SYSTEM The CenTex Aerospace auxiliary fuel tanks or “Saddle Tanks” add 190 gallons (95 gallons each) of usable fuel capacity to the airplane fuel system. These tanks ride on top of the wing behind the nacelle. The contour of the tank’s lower surface matches that of the wing and fits like a saddle. Five attachment points on the wing hold each tank in place. An aerodynamic fairing streamlines the region between the rear of the engine nacelle and tank. The tanks are constructed solely from aluminum and are an assembly of a formed shell, segmented floor panels, and internal baffles. The tank shell and floor are 0.080 inch thick aircraft grade aluminum that makes the tanks very durable and easy to repair, and provides excellent protection against lightning strikes and corrosion. The internal baffles, which are constructed from 0.050 inch thick aircraft grade aluminum, control fuel sloshing and provide stiffness. The pieces are joined by a combination of riveted and welded seams. A special sealant (PRC PR1422) is applied internally to seal the seams. Removable panels in the shell and floor provide access to the inside in case a repair is needed. Each tank weighs approximately 90 pounds. A flush mounted filler cap, which is lightning safe, is located on top of the tank. When securing the cap, it should be properly aligned with the adjacent index mark to ensure proper sealing. As with all fuel tank caps, it is a matter of safety to ensure the cap is closed properly and sealed. Figure 7-1 shows the location of the Saddle Tank filler cap. FIGURE 7-1 SADDLE TANK FILLER CAP SECTION 7 CENTEX AEROSPACE 045-1 SYSTEM DESCRIPTION AIRPLANE FLIGHT MANUAL SUPPLEMENT MARCH 2015 7-4 For Saddle Tanks, a sump drain with a push-to-open valve is located at the inboard rear corner of each tank. Opening the drain valve allows fuel from the lowest point in the tank to escape, which serves as a means to remove water or other contaminates. Figure 7-2 shows the location of the tank sump drain valve. FIGURE 7-2 TANK SUMP DRAIN CENTEX AEROSPACE 045-1 SECTION 7 AIRPLANE FLIGHT MANUAL SUPPLEMENT SYSTEMS DESCRIPTION MARCH 2015 7-5 Fuel in the Saddle Tank enters the airplane fuel system through a interconnected line between the tank and the auxiliary tank. The fuel line is constructed of 5/8 inch diameter aluminum tubing that traverses through the rear of the wheel well fairing under the rear spar and into the wheel well. A drain is provided at the lowest point (under the rear spar) so any contaminates that may have collected in the line can be removed. Figure 7-3 shows the location of the drain valve. FIGURE 7-3 FUEL LINE DRAIN Fuel may occasionally enter the vent line to the Saddle Tank. A drain is provided at the lowest point (outboard of the main landing gear fairing on the underside of the wing) so any fuel that may have collected in the line can be drained. Figure 7-4 shows the location of the drain valve. FIGURE 7-4 VENT LINE DRAIN SECTION 7 CENTEX AEROSPACE 045-1 SYSTEM DESCRIPTION AIRPLANE FLIGHT MANUAL SUPPLEMENT MARCH 2015 7-6 Figure 7-5 is a schematic of the fuel system with the Saddle Tank system depicted in red. Due to the Saddle Tank being on top of the wing, fuel in the Saddle Tank flows downward into the auxiliary tank assisted by gravity. Fuel inside the auxiliary tank is handled by the existing fuel system, which pumps it into the nacelle tank. Do not open the auxiliary tank cap if there is fuel in the Saddle Tank. Opening the cap and the anti-siphon valve (flapper) can result in fuel flowing out of the auxiliary tank if the Saddle Tank contains fuel. FIGURE 7-5 FUEL SYSTEM SCHEMATIC (190 GALLON) CAUTION CENTEX AEROSPACE 045-1 SECTION 7 AIRPLANE FLIGHT MANUAL SUPPLEMENT SYSTEMS DESCRIPTION MARCH 2015 7-7 FUEL QUANTITY INDICATOR SYSTEM The approximate amount of fuel in the Saddle Tanks is indicated inside the cockpit by a display of LED lights. These indicator lights are contained in a small console mounted next to the Fuel Control Panel. Each LED light is activated by an optical sensor installed in the wall of the tank. When the sensor lens is submersed in fuel it closes an internal switch that activates the light. Figure 7-6 shows the fuel quantity indicator. In this photo, the amber lights indicate that no fuel remains in the Saddle Tanks. FIGURE 7-6 SADDLE TANKS FUEL QUANTITY INDICATOR CONSOLE The system is powered through the FUEL QTY circuit breaker located in the Fuel System Circuit Breaker panel. A ½ amp fuse provides additional protection from electrical faults. The fuse is located in the bottom of the indicator console and is easily accessible. All of the LED lights that indicate a fuel quantity above zero are green in color. An illuminated green light indicates the quantity of fuel in the corresponding tank is at least the amount shown on the label next to the light. A non- illuminated light indicates the quantity of fuel inside the tank is less than the amount specified by the label. The empty (“0”) indicator light has two colors – green and amber. When fuel is present in the Saddle tank, the light color is green. The color will change to amber when the tank is empty. The amber illumination also shows that the system is operational when all other lights are not illuminated. A non- illuminated empty light indicates a failure of the indicator system has occurred. A dimmer switch is located on the left side of the console to adjust intensity of the LED lights. SECTION 7 CENTEX AEROSPACE 045-1 SYSTEM DESCRIPTION AIRPLANE FLIGHT MANUAL SUPPLEMENT MARCH 2015 7-8 THIS PAGE IS INTENTIONALLY BLANK CENTEX AEROSPACE 045-1 SECTION 7 AIRPLANE FLIGHT MANUAL SUPPLEMENT SYSTEMS DESCRIPTION MARCH 2015 7-9 SADDLE TANKS PLUS (120 GALLONS + STORAGE COMPARTMENT) SADDLE TANKS PLUS FUEL SYSTEM The CenTex Aerospace auxiliary fuel tanks or “Saddle Tanks Plus” add 120 gallons (60 gallons each) of usable fuel capacity to the airplane fuel system with an integral storage compartment at the aft section of the tank. These tanks ride on top of the wing behind the nacelle. The contour of the tank’s lower surface matches that of the wing and fits like a saddle. Five attachment points on the wing hold each tank in place. An aerodynamic fairing streamlines the region between the rear of the engine nacelle and tank. The tanks are constructed solely from aluminum and are an assembly of a formed shell, segmented floor panels, and internal baffles. The tank shell and floor are 0.080 inch thick aircraft grade aluminum that makes the tanks very durable and easy to repair, and provides excellent protection against lightning strikes and corrosion. The internal baffles, which are constructed from 0.050 inch thick aircraft grade aluminum, control fuel sloshing and provide stiffness. The pieces are joined by a combination of riveted and welded seams. A special sealant (PRC PR1422) is applied internally to seal the seams. Removable panels in the shell and floor provide access to the inside in case a repair is needed. Each tank weighs approximately 90 pounds. A flush mounted filler cap, which is lightning safe, is located on top of the tank. When securing the cap, it should be properly aligned with the adjacent index mark to ensure proper sealing. As with all fuel tank caps, it is a matter of safety to ensure the cap is closed properly and sealed. Figure 7-7 shows the location of the Saddle Tank filler cap. FIGURE 7-7 SADDLE TANKS PLUS FILLER CAP SECTION 7 CENTEX AEROSPACE 045-1 SYSTEM DESCRIPTION AIRPLANE FLIGHT MANUAL SUPPLEMENT MARCH 2015 7-10 For Saddle Tanks Plus, a sump drain with a push-to-open valve is located on the underside of the wing inboard of the main landing gear fairing. Opening the drain valve allows fuel from the lowest point in the tank to escape, which serves as a means to remove water or other contaminates. Figure 7-8 shows the location of the tank sump drain valve. FIGURE 7-8 TANK SUMP DRAIN CENTEX AEROSPACE 045-1 SECTION 7 AIRPLANE FLIGHT MANUAL SUPPLEMENT SYSTEMS DESCRIPTION MARCH 2015 7-11 Fuel in the Saddle Tanks Plus enters the airplane fuel system through a interconnected line between the tank and the auxiliary tank. The fuel line is constructed of 5/8 inch diameter aluminum tubing that traverses through the rear of the wheel well fairing under the rear spar and into the wheel well. A drain is provided at the lowest point (under the rear spar) so any contaminates that may have collected in the line can be removed. Figure 7-9 shows the location of the drain valve. FIGURE 7-9 FUEL LINE DRAIN Fuel may occasionally enter the vent line to the Saddle Tank Plus. A drain is provided at the lowest point (outboard of the main landing gear fairing on the underside of the wing) so any fuel that may have collected in the line can be drained. Figure 7-10 shows the location of the drain valve. FIGURE 7-10 VENT LINE DRAIN SECTION 7 CENTEX AEROSPACE 045-1 SYSTEM DESCRIPTION AIRPLANE FLIGHT MANUAL SUPPLEMENT MARCH 2015 7-12 Figure 7-11 is a schematic of the fuel system with the Saddle Tanks Plus system depicted in red. Due to the Saddle Tanks being on top of the wing, fuel flows downward into the auxiliary tank assisted by gravity. Fuel inside the auxiliary tank is handled by the existing fuel system, which pumps it into the nacelle tank. Do not open the auxiliary tank cap if there is fuel in the Saddle Tank. Opening the cap and the anti-siphon valve (flapper) can result in fuel flowing out of the auxiliary tank if the Saddle Tank contains fuel. FIGURE 7-11 FUEL SYSTEM SCHEMATIC (120 GALLON) CAUTION CENTEX AEROSPACE 045-1 SECTION 7 AIRPLANE FLIGHT MANUAL SUPPLEMENT SYSTEMS DESCRIPTION MARCH 2015 7-13 FUEL QUANTITY INDICATOR SYSTEM The approximate amount of fuel in the Saddle Tanks Plus is indicated inside the cockpit by a display of LED lights. These indicator lights are contained in a small console mounted next to the Fuel Control Panel. Each LED light is activated by an optical sensor installed in the wall of the tank. When the sensor lens is submersed in fuel it closes an internal switch that activates the light. Figure 7-12 shows the fuel quantity indicator without power applied. FIGURE 7-12 SADDLE TANKS PLUS FUEL QUANTITY INDICATOR CONSOLE The system is powered through the FUEL QTY circuit breaker located in the Fuel System Circuit Breaker panel. A ½ amp fuse provides additional protection from electrical faults. The fuse is located in the bottom of the indicator console and is easily accessible. All of the LED lights that indicate a fuel quantity above zero are green in color. An illuminated green light indicates the quantity of fuel in the corresponding tank is at least the amount shown on the label next to the light. A non- illuminated light indicates the quantity of fuel inside the tank is less than the amount specified by the label. The empty (“0”) indicator light has two colors – green and amber. When fuel is present in the Saddle tank, the light color is green. The color will change to amber when the tank is empty. The amber illumination also shows that the system is operational when all other lights are not illuminated. A non- illuminated empty light indicates a failure of the indicator system has occurred. A dimmer switch is located on the left side of the console to adjust intensity of the LED lights. SECTION 7 CENTEX AEROSPACE 045-1 SYSTEM DESCRIPTION AIRPLANE FLIGHT MANUAL SUPPLEMENT MARCH 2015 7-14 SADDLE TANK PLUS STORAGE COMPARTMENT Each Saddle Tank Plus storage compartment is a non-pressurized, non- heated compartment that may be used for storage of cargo up to a maximum of 100 lbs. To open the Saddle Tank storage door, depress the two buttons located aft of the door to release the latches. An attached gas spring will assist to open the door and maintain it in the open position. Any cargo carried in the storage compartment must be properly secured with cargo straps utilizing the six “D” rings inside the compartment. Prior to flight, close and latch the door. Note that the latch buttons will indicate a bright orange color when in the un- latched position. A keyed door lock is also provided in addition to the latches to prevent unauthorized access to the compartment. FIGURE 7-13 SADDLE TANK PLUS STORAGE COMPARTMENT