Is there a difference between China's Zhi -9 helicopter and American Apache?
The Z -9 light multi-purpose helicopter was developed and produced by Harbin Aircraft Manufacturing Company with the introduction of French patents. It can be used for personnel transportation, offshore support, maritime rescue, aerial photography, maritime patrol, fish observation, forest protection and fire prevention, etc., and can be used as carrier aircraft. Military uses include reconnaissance, close fire support, anti-tank, search and rescue, anti-submarine, reconnaissance and artillery correction, and communication. In October, 198, the State Council approved the exclusive contract for the production of French SA365 Dolphin helicopter by combining technology and trade. Hafei was specifically responsible for introducing the patent of French SA365N1 "Dolphin" helicopter, and began to produce Zhi -9. In 1982, the first aircraft was assembled. After Hafei's long-term efforts, it developed a number of types, including the basic straight -9, which was originally patented. By the end of 199, all 5 aircraft signed with France had been produced, of which 28 were basic straight-9; In addition, there are 2 straight -9A, which will continue to be produced after straight -9, equivalent to SA365N2;; Subsequently, Hafei produced two Zhi -9A-1 s, and initially tried the localization of Zhi -9 production. In September 1993, Hafei signed a contract with France to produce 22 Zhi -9 transition batches, and Hafei also produced 8 Zhi -9 civilian models. Basic technical data rotor diameter 11.93m tail rotor diameter .9m long 13.46m long (rotor and tail rotor folded) 11.44m high (rotor and tail rotor folded) 3.21m weight and load (A: straight -9, B: straight -9A) empty weight (A) 1975kg, (B) 25kg maximum. (b) 238kg maximum takeoff weight (a) 385kg, (b) 41kg maximum hanging load 16kg maximum level flying speed 36km/h normal cruising speed (a, total weight 385kg) 25 ~ 26km/h maximum vertical climbing rate (sea level) (a) 4.2m/s, (a) 4.2m/s. (b) Hovering height of 6m (with ground effect) (a) 195m, (b) 26m, (without ground effect) (a) 12m, (b) 16m, maximum range of 1km, maximum endurance of 5 hours, maximum practical overload of 3.5G (load of 32kg), performance index, takeoff weight of 6552kg. The maximum level flying speed and cruising speed are 293km/h, the maximum climbing rate (altitude 122m, 35℃) is 4.32m/s, the service ceiling is 64m, the hovering height (with ground effect) is 457m, the (without ground effect) is 355m, the range (internal fuel) is 482km, and the endurance time (altitude is 122m). Technical parameters outline dimensions Rotor diameter: 14.63m tail rotor diameter: 2.79m rotor blade chord length: 3.55m tail rotor blade chord length: .254m fuselage length (tail rotor rotation): 15.54m captain (rotor and tail rotor rotation): 17.76m short wing span: 5.23m (including weapon pylon): 5.82m machine height (to. : 4.3m (to the top of rotor hub): 3.84m (to the top of pitot tube): 4.66m overall height (AH-64d): 4.95m main rotor height from the ground (rotation). : 3.59m hanger centerline spacing: inner weapon hanger spacing: 3.2m outer weapon hanger spacing: 4.72m flat tail span: 3.4m main wheel track: 2.3m front and rear wheel track: 1.59m area rotor disc: 168.11m2 tail rotor disc: 6.13m2 flat tail area: 3.6m2 vertical tail area: 2.97. 5 kg ah-64d: 5352kg maximum internal fuel weight: 118kg maximum external fuel weight (4 fuel tanks): 2712kg maximum takeoff weight (with -71 engine): 9525kg maximum takeoff weight (with -71C engine, with full fuel): 117kg main task weight: 6552kg total design task weight. B: ah-64a with -71C engine; L: "Long Bow Aberdeen", weighing 753kg, equipped with -71C engine. International standard atmosphere) Maximum allowable speed: 365km/h Maximum level flying speed and maximum cruising speed A: 293km/h L: 261km/h Maximum climbing rate (sea level) B: 16.5m/s L: 12.3m/s Maximum vertical climbing rate (sea level) A: 12.7m/sb: 12.9m. A: 329m B: 38m Hovering height (with ground effect) A: 457m B: 524m L: 417m Hovering height (without ground effect) A: 355m B: 412m L: 289m Maximum voyage (internal fuel tank, 3 minutes remaining oil) A: 482km B: Remaining oil for 45 minutes): 1899km battery life (height 122m, 35℃): 1H5m maximum battery life (internal fuel tank): 3h9m ultimate overload (low altitude, airspeed reaching 34km/h):+3.5/-.5g.