Product Type: |
Twin-Engine Attack Helicopter |
Using Service (US): |
Army |
Program Status: |
Full Rate Production |
Prime Contractors: |
Apache: The Boeing Company |
AH-64 Apache
The AH-64 Apache is the most advanced multi-role combat helicopter for the U.S. Army and a growing number of international defense forces.
Key AH-64E Apache Longbow sensors include the Lockheed Martin/Northrop Grumman (Longbow LLC) AN/APG-78 Fire Control Radar, which has a very low probability of intercept. The radar automatically searches, detects, locates, classifies, and prioritizes fixed and moving targets on land, see and in the air in all weather environments and battlefield conditions. To date nearly 400 radars have been sold. Also, the AH-64E is equipped with M-TADS/PNVS (Lockheed Martin Arrowhead package), which is an advanced electro-optical fire control and sensor system. Pilots use the system for target acquisition and situational awareness. According to Lockheed Martin, M-TADS/PNVS improves system performance by over 150%, reliability increases more than 150% while maintenance actions are reduced by 60% (compared to the older TADS/PNVS system). Other sensors used on the AH-64E are the AN/APR-39 Radar Warning Receiver (RWR) from Northrop Grumman, the BAE Systems AN/APX-123(V)5 Identification Friend or Foe (IFF) transponder, the AN/APR-48A Radar Frequency Interferometer (RFI) from Lockheed Martin, and the AN/AVR-2B(V) Laser Warning System (LWS) from Goodrich (now UTAS) (AH-64E Block III only - AH-64A/D use the AN/AVR-2A). Countermeasures on the AH-64E include the Exelis AN/ALQ-211(V)1 countermeasures set and the the Exelis AN/ALQ-136(V)2 radar pulse jammer.
The U.S. Department of Defense (DoD) is currently developing the future replacement platform for the Apache. The Future Vertical Lift (FVL) effort will design and build a family of helicopters that will replace the current fleet of Apaches, Black Hawks and Chinooks by 2030.?
AH-64E Longbow Remanufacture Effort:
The AH-64E Longbow remanufacture effort upgrades existing AH-64 Apaches to the AH-64E Apache Longbow Block IIIA configuration. The effort incorporates the AN/APG-78 millimeter wave fire control radar (FCR), radar frequency interferometer (RFI), fire-and-forget radar-guided Hellfire missile capability and cockpit management and digitization enhancements. The combination of the FCR, RFI, and the advanced navigation and avionics suite provides increased situational awareness, lethality and survivability. This program also provides for the installation of the Lockheed Martin Apache Arrowhead Modernized Target Acquisition Designation Sight (M-TADS) and Pilot Night Vision Sensors (PNVS). 
Armament/Weapons:
The Apache Longbow is equipped with an Alliant Techsystems M230 30mm single-barrel automatic cannon, which fires 625 high-explosive dual-purpose rounds a minute and has a capacity of 1,200 rounds in total. The gun is located under the fuselage. The AH-64 has four hardpoints mounted on stub-wing pylons and can be equipped with a combination of AGM-114 Hellfire missiles and Hydra-70 rockets. Typical configurations include 16 Hellfire missiles for anti-armor missions (4x four-rail launchers) or 8 Hellfire missiles (2x four-rail launchers) and two M261 rocket pods with 19 Hydra-70 rockets each.
Price/Unit Cost: AH-64E Block IIIA Total Cost - Life of Program (LoP): Mission/Role:
Aircraft Specifications: AH–64E Apache Guardian
Primary Function: Attack helicopter
Prime Contractors:
Airframe: The Boeing Company
AN/APG-78 Fire Control Radar: Northrop Grumman and Lockheed Martin
M-TADS/PNVS: Lockheed Martin
Power Plant: 2x General Electric T700-GE-701D turboshaft engines with 1,994 shp (each)
Length: Fuselage: 49 ft 5 in (15.06 m); w/rotating rotor: 58.2 ft (17.7 m)
Height: 16.3 ft (5.0 m)
Rotor Diameter: 48 ft (14.6 m)
Weight (Empty): 11,387 lbs (5,165 kg)
Maximum Takeoff Weight (MTOW): 23,000 lbs (10,433 kg)
Speed: Cruise: 141 kts/162 mph (262 km/h); Max: 158 kts/182 mph (293 km/h)
Rate of Climb: 2,500 ft/min (12.7 m/s)
Service Ceiling: 21,000 ft (6,401 m) minimum loaded
Range: 257 nm/296 miles (476 km)
Armament/Weapons: 1x Alliant Techsystems M230 30mm single-barrel automatic cannon with 1,200 rounds;
16x AGM-114 Hellfire missiles; or 8x AGM-114 Hellfire missiles + 2x M261 Rocket Pods w/19x Hydra-70 2.75" (70mm) rockets each.
Crew: Two (pilot and co-pilot/gunner)
3樓. hsr2015/04/10 01:26直升機最關鍵的部件是旋翼。「阿帕契」採用的是4片槳葉全鉸接式旋翼系統，旋翼槳葉翼型是經過修改後的大彎度翼型。為了改善旋翼的高速性能，在生產型上採用了後掠槳葉。旋翼直徑14.63米，槳葉弦長0.53米，扭轉角負9度。槳葉上裝有除冰裝置，也可以折疊或拆卸。尾槳位於尾梁左側，四片尾槳槳葉分兩組非均勻分布，槳葉之間夾角分別為55度和125度。
機身採用傳統的半硬殼結構，後面有垂尾和水平尾翼，尾梁可以折疊。機身前方為縱列式座艙，副駕駛員/砲手在前座、駕駛員在後座，後座比前座高48釐米，視野良好。尤其是駕駛員靠近直升機轉動中心，很容易感覺直升機的姿態變化，有利於駕駛直升機貼地飛行。2具通用發動機T700-GE-701渦輪軸發動機，並列安裝在機身的兩個中心，單具最大功率1,265千瓦。機身中部兩側還裝有一對小展弦比短翼，短翼下各有兩個武器掛點，後緣有同步升降舵，它們的主要作用是攜帶武器和為直升機提供部分升力。起落架為大多數直升機所普遍採用的三點輪式，但起落架不能收放。
為提高其生存力，AH-64採用了玻璃鋼增強的多梁式不鏽鋼前段，和敷以玻璃鋼蒙皮的蜂窩夾心後段設計。經實彈射擊證明，這種旋翼槳葉任何一點被12.7毫米槍砲擊中後，一般不會造成結構性破壞，完全可以繼續執行任務 hsr 於 2015/04/10 01:27回覆-
2樓. hsr2015/04/10 01:25「阿帕契」（Apache），是美洲印地安人的一支，生活在北美西南部。阿帕契族驍勇善戰，美軍在不同的衝突中發現他們是凶猛的戰士和有謀略的軍事家，AH-64因而被名命為阿帕契戰鬥直升機。AH-64阿帕契戰鬥直升機威力強大，多次在實戰中（如在巴拿馬、海灣戰爭中）都實際驗證其作戰效能。它也是目前美國陸軍的主力攻擊直升機。
AH-64是縱列雙座攻擊直升機，引擎是2具通用電氣T700渦輪軸發動機，安裝在旋轉軸的兩旁。座位是一前一後，正駕駛員在後上方，副駕駛員兼火砲瞄準手在前。駕駛員座位的裝甲可以承受一般機砲射擊。機砲為固定式30mm M230於機腹底下。兩側的短翼上有四處武器掛載點，可依任務搭載不同的武器。為了隨時在最前線執行作戰任務，AH-64駕駛可使用整合於頭盔中的夜視系統，將所有飛機重要資訊在其頭盔顯示，在夜間與惡劣天候下作戰。同時AH-64也配備了先進的航空電子設備，包括目標識別瞄準系統/飛行員夜視系統（TADS/PNVS），以及被動式的雷達與紅外線反制裝置和GPS等。同時AH-64D則改良包括了加強主旋翼以承受23mm機砲的短暫射擊，以及在主旋翼上方搭載長弓（Longbow）毫米波雷達系統等。 hsr 於 2015/04/10 01:26回覆 -
1樓. hsr2015/04/10 01:21美國AH-64E阿帕契直升機的機艙中有個紅色保護蓋，據悉其主要用途是銷毀直升機內的所有數據，避免被敵人取得機密。文章中寫著：「在李蒨蓉照片中，可見台灣版AH-64E直升機同一位置沒有這個紅色的保護蓋，而在其下方有一塊不明白色物體。這可能是一個改變了安裝位置和樣式的歸零按鈕。」美國阿帕契直升機最靠近前方的面板為通訊控制面板，上面有幾排旋鈕和電門，「而在台灣版AH-64E上，這塊面板被移到後面，而在原來安放這塊面板的位置出現了一塊新的不明用途的面板，從外形暫時無法推測具體用途 hsr 於 2015/04/10 01:22回覆
機身採用傳統的蒙皮、隔框、長衍結構，其95%表面的任何部位被一發23毫米砲彈擊中後，仍可保證繼續飛行30分鍾。前後座艙均有裝甲，可抵禦23毫米砲彈的攻擊。2台發動機的關鍵部位也有裝甲保護，而且中間有機身隔開，兩者相距較遠，如果有一具發動機被擊中損壞，也還有一具可以持續飛行，保證飛行安全?
你們台灣AH-64E好像只是紙老虎好看不中用? 。中華民國陸軍採購了30架代號「天鷹」的美國AH-64D長弓型阿帕契（Apache）攻擊直升機，總經費730億元。採購的30架中有15架在旋翼主軸頂端配備長弓雷達，配合新式的長弓毫米波雷達導引地獄火導彈，是相當精密的射控裝備。
hsr 於 2015/04/10 01:29回覆
配合長弓阿帕契直升機的地獄火導彈，以毫米波雷達導引，美方報價20萬美元一枚，比現在使用的雷射導引地獄火10萬美元一枚貴上一倍。消息來源指出，總經費730億中約600億是直升機本體，其餘130億是購置毫米波雷達地獄火飛彈及彈藥、零附件和訓練課程。
