Beechcraft C-12C Operator And Technical Reference Manual

Contents

Beechcraft C-12C Operator And Technical Reference Manual Manual pdf 605 page image

TM 1-1520-218-10Section V. MISSION EQUIPMENTNot Applicable.Section VI. CARGO LOADING6-14. AIR CARGO FEATURES.The 245 cubic foot cabin area is easily convertedfor mixed or all cargo use by removing passengerseats and a partial partition, Figure 6-6. A top-hingedcargo door with an opening 52 inches wide by52 inches high, is provided on the left side of thefuselage to admit bulk cargo D1 T The floor isdesigned to support 200 pounds per square foot whensupported by the seat tracks. The areas where seattrack support is not possible will support 100 poundsper square foot floor loading. Seat tracks are to beused for securing cargo containers.6-15. AERIAL DELIVERY SYSTEM.Procedures for aerial delivery of personneland cargo have not been developed.The cargo door is a structural panel andshall be closed for flight.There are no provisions for static lines; however,free fall parachute operations may be accomplished.The cabin door may be removed for flight by installingBeech Aircraft Corporation Kit 100-4006. Flights withthe door removed must be in accordance with theFederal Aviation Administration approved flight manualsupplement, which accompanies this kit.6-16. PREPARATION OF GENERAL CARGO.Before loading cargo, loading personnel shoulddetermine such data as weight, dimensions, center ofgravity, and contact areas of the individual cargo itemsfor use in positioning the load.6-17. CARGO CENTER OF GRAVITY PLANNING.The cargo loading shall be planned so that thecenter of gravity of the loaded aircraft will fall within theoperating limits shown on Center of Gravity Limitationsgraph, Figures 6-7 and 6-8. Cargo moment may bedetermined by using the Cargo Moment chart, Figure6-5.6-18. LOAD PLANNING.The basic factors to be considered in any loadingsituation are as follows:a. Cargo shall be arranged to permit access toall emergency equipment and exits during flight.b. Floorboard and bulkhead structural capacityshall be considered in the loading of heavy or sharpedged containers and equipment. Shorings shall beused to distribute highly condensed weights evenlyover the cargo areas.WARNING c. All cargo shall be adequately secured toprevent damage to the aircraft, other cargo, or the itemitself.6-19. LOADING PROCEDURE.a. Loading of cargo is accomplished throughthe cabin door C or cargo door D T .6-20. SECURING LOADS.All cargo shall be secured with restraints strongenough to withstand the maximum force exerted in anydirection. The maximum force can be determined bymultiplying the weight of the cargo item by theapplicable load factor. These established load factors(the ratio between the total force and the weight of thecargo item) are 1.5 to the side and rear, 3.0 up 3.0down, and 9.0 forward.6-21. RESTRAINT DEVICES.The aircraft is equipped with full-length seattracks, which are used to support the cargo andprovide attachment points for the cargo tiedowndevices, Figure 6-9. When cargo is properly securedby tiedown devices, it will be restrained from moving inany direction within the aircraft.6-11