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2.75-inch FFAR/LSFFAR (typical configurations) - 14024_81
5.0-inch FFAR (typical configurations) - 14024_83

Aviation Ordinanceman 1 - Aviation theories and other practices
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5.0-Inch FFAR AIRCRAFT ROCKET LAUNCHERS Like the 2.75-inch rocket, the 5.0-inch FFAR (fig. 2-25) can be assembled in various warhead and fuze combinations. The Mk 71 motor gives the additional advantage of one motor for all launch-speed applications. The 5.0-inch rocket is carried and launched from multiple-round launchers. Because of their large size and weight, the number of rounds per launcher is reduced to four. The 5.0-inch rockets are received through the supply system in the following two configurations: 1. Rocket motors in a 4-round launcher and fuzes and warheads in separate shipping containers NOTE: The Mk 191, Mk 193, and Model 113A fuzes are permanently installed in the warheads. 2. Separate components in separate shipping Q1. Q2. containers REVIEW NUMBER 4 What is the usual configuration of the 2.75-inch airborne rocket ? Aboard ship, who assembles rocket components for current operations? A1. A2. A3. A4. A5. A6. LEARNING OBJECTIVE: Recognize the shipping configuration for aircraft rocket launchers and identify common aircraft rocket launcher components. Aircraft rocket launchers (pods) carry and provide a platform to fire rockets. Launcher design permits multiple loading and launching of 2.75-inch and 5.0-inch rockets. Rocket pods let rocket motors (and, in some cases, completely assembled rounds) stay in the same container from their manufacture, through stowage, to their final firing. Aircraft rocket launchers are classified as either 2.75-inch or 5.0-inch. They may be further classified as either reusable or nonreusable. Launcher tubes that are constructed of metal are considered reusable and are usually returned for reloading. Under certain conditions, they may be jettisoned at the pilot’s discretion. Launcher tubes constructed of paper material are designed for onetime use only, and are jettisoned by the pilot after use. The 2.75-inch rocket launchers currently in use are the LAU-61A/A, LAU-61B/A, LAU-61C/A, LAU-68B/A, and the LAU-68D/A. Characteristics and specifications for these launchers are listed in REVIEW NUMBER 3 ANSWERS TO QUESTIONS Q1. THROUGH Q6. When classified by their mode of operation, fuzes are classified as impact firing, mechanical time, acceleration-deceleration, or proximity. Impact-firing fuzes function when the rocket strikes the target that offers enough resistance to cause actuation of the parts. The two types of impact firing fuzes are the nose detonating and base detonating types. Upon arming, the mechanical timer starts, and after a set time, the mechanical time fuze initiates the firing train. In acceleration-deceleration fuzes, deceleration causes the fuze to function. Proximity fuzes sense, usually by electronic means, the presence and distance of a target. 2-20







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