ROTORCRAFT FLIGHT MANUAL SUPPLEMENT DUAL CARGO HOOK

to the HEC hook remains slack up to coning angle of 30°. The safety strop and the HEC hook only react to the load in the event of failure of CARGO hook to support the load. TC APPROVED BHT-429-FMS-29 25 NOV 2014 Rev. 1 1 Export Classification C, ECCN EAR99 Section 1 LIMITATIONS 1 1-3. TYPES OF OPERATION Operation of helicopter with no load on e x t e r n a l c a r g o s u s p e n s i o n h o o k s i s authorized under standard airworthiness certificate for VFR and IFR without removing the load beam, fairing, and hooks from helicopter. With a load attached to suspension assembly, operations shall be conducted in accordance with appropriate operating rules for external loads. The Dual Cargo Hook Kit is approved for both N o n - H u m a n E x t e r n a l C a r g o ( N H E C ) operations and Human External Cargo (HEC) operations. HEC op e rat ion s s ha ll u tiliz e pe rs o nn el carrying device simultaneously attached to both cargo hooks by separate independent strops to each of the hooks (Figure 2-3). In normal HEC operations, the load is reacted through the CARGO hook alone. The HEC hook is utilized as a safety backup to the CARGO hook. The safety strop attached to the HEC hook remains slack up to coning angle of 30°. The safety strop and the HEC hook only react to the load in the event of failure of CARGO hook to support the load. The external load equipment certification approval does not constitute operational approval. Operational approval for external load operations must be granted by the local aviation authority. If an operator is on board to observe the load from the cabin door, direct communication is required between the pilot and operator. The operator must be secured in the passenger c o m pa r t m e n t w i t h a n a p p r o v e d s a f e t y harness. Communications between the pilot, o p e r a to r, a n d t h e h u m a n H EC s h a l l b e through established hand signals and/or approved radio-ICS system. Towing loads touching the ground or water surface have not been flight demonstrated. 1-6. WEIGHT AND CENTER OF GRAVITY The weight and CG location of the mounting beam and hooks is: • Beam weight (fully dressed) is 56.5 pounds (25.63 kg) • Fore/aft CG is 224.27 inches (5696.4 mm) • Lateral butt line is +1.865 inches (+47.37 mm) If necessary, the ballast should be readjusted to return empty weight CG to within allowable limits. 1-6-A. WEIGHT F o r H E C , m a x i m u m e x t e r n a l l o a d i s 1322 pounds (600 kg). For FAA registered helicopters only, for HEC, m a x i m u m ex t e r n a l l o a d i s 6 6 0 p o u n d s (300 kg). F o r N H E C , m a x i m u m e x t e r n a l l o a d i s 3000 pounds (1360 kg). BHT-429-FMS-29 TC APPROVED 2 Rev. 1 25 NOV 2014 Export Classification C, ECCN EAR99 1-6-B. CENTER OF GRAVITY Refer to Gross Weight Center of Gravity Limits charts (BHT-429-FM-1). 1-7. AIRSPEED For HEC operations, maximum permitted airspeed is 60 KIAS. For NHEC operations, maximum permitted airspeed is 120 KIAS or placarded VN E , whichever is less. CAUTION AIRSPEED WITH EXTERNAL CARGO IS LIMITED BY CONTROLLABILITY. CAUTION SHOULD BE EXERCISED W H E N C A R R Y I N G E X T E R N A L C A R G O , A S H A N D L I N G C H A R A C T E R I S T I C S M A Y B E AFFECTED BY SIZE, WEIGHT, AND SHAPE OF CARGO LOAD. 1-20. INSTRUMENT MARKINGS AND PLACARDS Refer to Figure 1-3 for placards and decals. 1-21. PERFORMANCE 1-21-A. HUMAN EXTERNAL CARGO R E Q U I R I N G C A T E G O R Y A PERFORMANCE For HEC operations requiring Category A performance, the maximum combined gross weight of the helicopter and external load shall not exceed the gross weight indicated for the applicable ambient conditions in the Hover Ceiling OGE – 2-Minute OEI Power Chart (Figure 4-6). 1-21-B. HUMAN EXTERNAL CARGO NOT R E Q U I R I N G C A T E G O R Y A PERFORMANCE For HEC operations not requiring Category A performance, refer to appropriate Hover Ceiling OGE chart (BHT-429-FM-1) for OGE hover performance (relative to GW) for conditions of pressure altitude (HP) and OAT. 1-22. HEC HOOK Use of only the HEC hook (secondary hook) for cargo operations is not permitted. 1-23. PERSONNEL CARRYING DEVICE Each personnel carrying device attached to the hooks shall be approved. TC APPROVED BHT-429-FMS-29 25 NOV 2014 Rev. 1 3 Export Classification C, ECCN EAR99 Figure 1-3. Placards and Decals 429_FMS-29_0003_c01 HEC HOOK CARGO HOOK MAXIMUM EXTERNAL LOAD LIMIT CARGO HOOK ONLY 1360 Kgs (3000 Lbs) NON HEC BOTH HOOKS 600 Kgs (1322 Lbs) HEC Location: Cargo hook beam - cargo hook (yellow) Location: Cargo hook beam Location: Cargo hook beam - HEC hook (blue) MAXIMUM EXTERNAL LOAD LIMIT CARGO HOOK ONLY 3000 LBS NON HEC BOTH HOOKS 660 LBS HEC For FAA Registered Helicopters Only BHT-429-FMS-29 TC APPROVED 4 Rev. 1 25 NOV 2014 Export Classification C, ECCN EAR99 Section 2 NORMAL PROCEDURES 2 2-2. FLIGHT PLANNING 2-2-A. GROUND CREW INSTRUCTIONS Instruct ground personnel to discharge helicopter static electricity before attaching cargo by touching airframe with ground wire; or, if a metal sling is used, hookup ring can be struck against cargo hook. If contact has been lost after initial grounding, helicopter shall be electrically regrounded and, if possible, c o n ta c t m a i n t a i n e d u n t i l h o o k u p i s completed. CAUTION SOME COMBINATIONS OF SMALL P R I M A R Y R I N G S A N D L A R G E SECONDARY RINGS COULD CAUSE FOULING DURING RELEASE. CAUTION NYLON-TYPE STRAPS (OR SIMILAR MATERIAL) OR ROPE MUST NOT BE USED DIRECTLY ON THE CARGO H O O K L O A D B E A M . I F N Y L O N STRAPS OR ROPE MUST BE USED, T H E Y S H O U L D B E F I R S T ATTACHED TO A STEEL PRIMARY RING. VERIFY THAT THE RING WILL FREELY SLID E O FF THE LO AD BEAM WHEN IT IS OPENED. ONLY THE PRIMARY RING SHOULD BE IN CONTACT WITH THE CARGO HOOK LOAD BEAM. Instruct ground personnel to check that only one primary ring, with correct cross-section dimensions, is captured in load beam and only one secondary ring is captured in primary ring. Additional rings, slings, or shackles shall be attached to secondary load ring (Figure 2-1 and Figure 2-2). NOTE The HEC hook (secondary hook) is only to be used when HEC is being carried. The hook’s structural attachments are not designed to continuously carry offset loads. Therefore, during normal HEC operations, the HEC hook is to remain unloaded during all phases of flight including load displacement up to a coning angle of 30° in any direction. Refer to Figure 2-3 for formula to be used to determine the length of the secondary (safety) strop. 2-3. PREFLIGHT CHECK 2-3-B. EXTERIOR CHECK 1. Cargo hooks suspension assembly and fairing — Condition and security. 2. Cargo sling — Condition, proper length. 3. Cargo hooks — Each hook; verify movement is free in all directions. Check mechanical release connections and electrical release connections for condition and security. TC APPROVED BHT-429-FMS-29 25 NOV 2014 Rev. 1 5 Export Classification C, ECCN EAR99 2-4. INTERIOR AND PRESTART CHECK 2-4-A. INTERIOR CHECK 1. BATT switch — ON. 2. CARGO HOOK switch — ARM. Verify CARGO HK ARM message is displayed on EICAS. 3. Cyclic CARGO REL button — Press and release; CARGO HK ARM message should momentarily disappear and CARGO hook (yellow decal) should open. Manually close hook and verify that it latches closed. 4. Collective HEC HOOK REL button — Press and release; CARGO HK ARM message should momentarily disappear and HEC hook (blue decal) should open. Manually close hook and verify that it latches closed. 5. EMERG CARGO REL handles — Pull each release handle individually. Each release lever should travel approximately 0.5 inch (12 mm) before actuating the opening of the appropriate cargo hook. Manually close each hook and verify each one latches closed with the external manual release on each cargo hook touching their end stop. 6. CARGO HOOK switch — OFF. 2-13. AFTER ENGINE AND ROTOR START If two-way hand-held radios are to be used to e s ta b l i s h co m m u n i c a t i o n b e t w ee n t h e occupants of the helicopter and persons being carried external to it: 1. CARGO HOOK switch — ARM. Verify CARGO HK ARM message is displayed on EICAS. 2. Two-way transmission tests on all hand-held radio sets are to be accomplished with at least one set external to the helicopter and one internal to it. During two-way transmission tests, there must be no abnormal functioning of the helicopter systems or spurious indications on displays, instrumentation, or warning devices. NOTE The cargo hooks must remain closed at all times. 3. CARGO HOOK switch — OFF. 2-14. LOAD ATTACHMENT 1. CARGO HOOK switch — ARM. Verify CARGO HK ARM message is displayed on EICAS. 2. RPM switch — 104%. 3. Open cargo hook(s) as applicable — Both hooks for HEC loads, CARGO hook only for Non-HEC loads. 4. Hover helicopter at sufficient height to allow ground personnel to discharge static electricity and attach the strop(s) to the cargo hook(s), as applicable. 5. Ascend vertically, directly over load, then slowly lift load from surface. 6. Yaw pedals — Check for adequate directional control. 7. Hover power — Check torque/MGT required to hover with external load. 8. Take off into wind, if possible, allowing adequate load clearance over obstacles. BHT-429-FMS-29 TC APPROVED 6 14 AUG 2014 Export Classification C, ECCN EAR99 9. RPM switch — AUTO prior to 60 KIAS if intending to exceed 60 KIAS (with Non-HEC load). 10. Airspeed within limits. WARNING EM ERG CARG O R EL HA NDLE S WILL FUNCTION, REGARDLESS OF CARGO HOOK/HEC HOOK REL/ CARGO REL SWITCH POSITION. 2-15. LOAD RELEASE 1. RPM switch — 104% at 60 KIAS or less. 2. Verify CARGO HK ARM message displayed on EICAS, for planned release. 3. Flight path and approach angle — As required for wind direction and obstacle clearance. 4. Execute approach to a hover with load clear of surface. When stabilized at a hover, descend slowly until load contacts surface. Maintain tension on sling. 5. For HEC loads, cyclic CARGO REL button and collective HEC HOOK REL — Press to release sling from hooks. For Non-HEC loads, cyclic CARGO REL button — Press to release sling from hook. 6. CARGO HOOK switch — OFF. 7. RPM switch — AUTO. TC APPROVED BHT-429-FMS-29 14 AUG 2014 7 Export Classification C, ECCN EAR99 Figure 2-1. Loading of Hook(s) 429_FMS-29_0002 CORRECT USE INCORRECT USE INCORRECT USE PRIMARY RING SECONDARY RING BHT-429-FMS-29 TC APPROVED 8 14 AUG 2014 Export Classification C, ECCN EAR99 Figure 2-2. Ring Dimensional Criteria 429_FMS-29_0001 SECONDARY RING PRIMARY RING 1.6 TO 2.4 IN. (40 TO 60 mm) 0.6 TO 0.8 IN. (16 TO 20 mm) 0.8 IN. (20 mm) MAXIMUM 2.4 IN. (60 mm) MAXIMUM 1.6 IN. (40 mm) MINIMUM TC APPROVED BHT-429-FMS-29 14 AUG 2014 9 Export Classification C, ECCN EAR99 Figure 2-3. Determination of HEC Safety Strop Length DETERMINATION OF HEC SAFETY STROP LENGTH Either of the following formulas is to be used to determine the length of the secondary (safety) strop: where “a” is the length of the primary strop and “b” is the length of the secondary strop. b = [ ( a + 0.673 + (0.82 x a) ) + 0.5 ] feet √ ENGLISH UNITS 2 b = [ ( a + 0.063 + (0.25 x a) ) + 0.15 ] meters √ METRIC UNITS 2 HEC LOAD PRIMARY STROP, length “a” SECONDARY STROP, length “b” EXAMPLE: if a = 100 feet (30.48 meters), then b = [ ( 100 + 0.673 + (0.82 x 100) ) + 0.5 ] = 100.91 feet √ 2 b = [ ( 30.48 + 0.063 + (0.25 x 30.48) ) + 0.15 ] = 30.76 meters √ 2 or BHT-429-FMS-29 TC APPROVED 10 14 AUG 2014 Export Classification C, ECCN EAR99 Section 3 EMERGENCY AND MALFUNCTION PROCEDURES 3 3-13. CARGO FAILS TO RELEASE ELECTRICALLY 1. Pull EMERG CARGO REL handles to release load. Section 4 PERFORMANCE 4 4-5. HOVER CEILING Refer to BHT-429-FM-1 for out of ground effect hover performance. There is no change from BHT-429-FM-1 performance with no load attached to cargo hook. Performance may be affected by size and shape of external load. 4-11. HUMAN EXTERNAL CARGO OPERATIONS REQUIRING C A T E G O R Y A PERFORMANCE 4-11-A. FLIGHT PLANNING Prior to commencement of HEC operations requiring Category A performance, determine helicopter GW at which an OGE hover can be maintained at 2 MIN OEI power. Table 3-4. Advisory (Green, White, or Cyan) Lights/Messages MESSAGE SYSTEM CONDITION REQUIRED ACTION Cargo hook electrical release is armed. CARGO HOOK switch — As required. CARGO HK ARM TC APPROVED BHT-429-FMS-29 14 AUG 2014 11 Export Classification C, ECCN EAR99 EXAMPLE: W h a t m a x i m u m g r o s s w e i g h t c o u l d b e expected for following conditions? SOLUTION: a. Use Crosswind/Headwind Component Chart (Figure 4-12): Enter at 25 knots reported wind scale, follow 25 arc until 37°. Headwind component is 20 knots. (Factored headwind is 10 knots.) NOTE Unless otherwise authorized by operating regulations, pilot is not a u t h o r i z e d t o t a k e c r e d i t f o r performance increase resulting from more than 50% of actual headwind component for OEI hover. b. To determine maximum GW, use Hover Ceiling OGE — 2-Minute OEI Power chart (Figure 4-6): Enter on left of chart at 1750 feet HP. Move right following grid lines to intersect the +10°C line. Move vertically down to top of the Unfactored Headwind graph (at zero wind). Move parallel to trend lines to the 10 knot (Factored Headwind) graph line. Move vertically down to Gross Weight axis and read 6385 pounds. NOTE In the event of an OEI event, once HEC is on the ground, the remaining time at 2 MIN OEI power is to be used with the 2 MIN OEI limiter selected and NR drooped to 100% for the transition to forward flight. Once forward flight is achieved, pilot r e d u c e s p o w e r t o m a x i m u m continuous OEI or 30-minute OEI, as applicable. HP 1750 feet OAT +10°C Wind 37° off nose at 25 knots BHT-429-FMS-29 TC APPROVED 12 14 AUG 2014 Export Classification C, ECCN EAR99 Figure 4-6. Hover Ceiling OGE — 2-Minute OEI Power 4600 4800 5000 5200 5400 5600 5800 6000 6200 6400 6600 6800 7000 7200 7400 GROSS WEIGHT - LBS 30 25 20 15 10 5 0 UNFACTORED HEADWIND - KTS 50 40 30 20 10 0 UNFACTORED HEADWIND - KM/HR 0 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000 11000 12000 PRESSURE ALTITUDE - FEET 2100 2200 2300 2400 2500 2600 2700 2800 2900 3000 3100 3200 3300 3400 GROSS WEIGHT - KGS 0 200 400 600 800 1000 1200 1400 1600 1800 2000 2200 2400 2600 2800 3000 3200 3400 3600 3800 PRESSURE ALTITUDE - METERS MAXIMUM OAT 50 40 30 20 10 0 OAT - °C -30 -10 51.7 ADEQUATE CONTROL MARGINS HAVE BEEN DEMONSTRATED IN THE FOLLOWING WIND CONDITIONS: UP TO 35 KTS ALL AZIMUTHS UP TO 50 KTS ±30° OFF NOSE UP TO 60 KTS ±15° OFF NOSE -20 -40 MAXIMUM GW WITH EXTERNAL LOAD = 7500 LB HOVER CEILING OUT OF GROUND EFFECT 2 MINUTE OEI POWER ENGINE RPM 104% GENERATOR 150 AMPS SKID HEIGHT 60 FT (18.3 METER) BASIC INLET OR BARRIER FILTER AIR COND. OFF / HEATER OFF TC APPROVED BHT-429-FMS-29 14 AUG 2014 13 Export Classification C, ECCN EAR99 Figure 4-12. Crosswind/Headwind Component Chart 35 30 25 20 15 10 5 0 CROSSWIND COMPONENT - KNOTS 0 5 10 15 20 25 30 35 40 REPORTED WIND SPEED - KNOTS 0 5 10 15 20 25 30 35 40 HEADWIND COMPONENT - KNOTS CROSSWIND ANGLE FROM TAKEOFF HEADING TAKEOFF HEADING 0° 10° 20° 40° 50° 60° 70° 80° 90° 30° A B EXAMPLE: AIRCRAFT HEADING REPORTED WIND DIRECTION DIFFERENCE BETWEEN WIND DIRECTION AND AIRCRAFT HEADING REPORTED WIND SPEED ENTER CHART AT REPORTED WIND SPEED, POINT A. PROCEED LEFT, FOLLOWING SHAPE OF CURVED LINES, TO CROSSWIND ANGLE FROM AIRCRAFT HEADING, POINT B. PROCEED VERTICALLY UPWARD TO CROSSWIND COMPONENT SCALE AND READ CROSSWIND COMPONENT PROCEED LEFT HORIZONTALLY TO HEADWIND COMPONENT SCALE AND READ HEADWIND COMPONENT (NOTE: REDUCE HEADWIND COMPONENT BY APPROPRIATE APPROVED FACTOR AND USE RESULT AGAINST "UNFACTORED HEADWIND" SCALE IN PERFORMANCE CHARTS) 1. 2. 3. 4. 5. 6. 7. 8. 163° 200° 37° 25 KNOTS 15 KNOTS 20 KNOTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . BHT-429-FMS-29 14 14 AUG 2014 Export Classification C, ECCN EAR99 Section 5 WEIGHT AND BALANCE 5 5-2. EMPTY WEIGHT CENTER OF GRAVITY Load on hook is at FS 225.0 (5715 mm).