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Aviation History
1964
1964 - 1772.PDF
983 FLIGHT International, II turn 1964 just visible on the tips of wings and tailplane are the vane exciters used for flutter investigations during early C-l41 test flights cooling. The nose gear can be inspected in flight, and all three legs can very nearly be extended by gravity alone: there is a small hydraulic hand-pump for locking down the nose gear, and a 501b pull on a handle locks the main bogies down—if the hydraulic system has failed. In the military C-141s, all control functions are performed at the front of the aircraft, and multi-crew operation is provided for with comfortable spare seats, two bunks, galley and toilet. Some of these are eliminated in proposed civil versions. The flight deck is a model of its kind, with cheerful background colouring and an astonishing amount of room, combined with excellent systems layout and exceptionally good visibility. In this last respect, the fact that the aircraft lands, takes-off and cruises with a very nearly level fuselage attitude both simplifies handling and preserves a consistently excellent field of view. The automatic flight-control system allows stick steering and will be cleared for coupled approaches down to 100ft and J-mile minima—loosely referred to at Marietta as automatic landing. The full range of communications equipment is duplicated, and the navigation system caters for a great variety of navigation modes, from VOR to Doppler, the displays from each being selected through push-buttons by either pilot and presented on a navigation director instrument. The two groups of tape instruments are completely separate and independent, though the co-pilot's indications may be switched to the captain's panel if the latter's information sources fail. In view of this, there is a move to eliminate the direct-reading stand-by altimeter and a.s.i. The ASN-35 Doppler system is com- bined with the ASN-24 navigation computer, allowing six successive legs of up to 999 n.m. each to be pre-set, covering the full range capability of the aircraft. An intriguing innovation is the combination of the conventional centralized warning system with new aural warnings. Stall warning is by "cricket sound," a trilling beeping quite similar to the sound of tropical crickets. A curious semi-hysterical syren-like warble announces FIRE, after which the pilot pulls a large plunger which mechanically shuts off fuel and oil and arms a two-shot extin- guishant system in the affected area. For take-off and landing, the pilot can preselect the spoilers so that they extend as soon as the engines are put into reverse thrust. The spoilers are used only for deceleration and landing, as distinct The C-I4I with partial flap and gear down seen from the inevitable chassplane. Talons, F-IOOFs and T-33s have flown chase
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