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Aviation History
1943
1943 - 0703.PDF
MARCH I8TH, 1943 FLIGHT 283 STOWING AIR FREIGHT There are four tubes installed longitudinally, one on each side above (attached to ribs in the roof of the cargo compartment) and two installed in the floor (attached to floor posts). To these longi- tudinal tubes are fastened adjustable vertical members, to which can be fastened tubular cross- members. The cross-members can be pressed downward on the cargo, exerting sufficient pressure to prevent any movement of the load they rre designed to hold. Vertical members and cross-members are remov- able, interchangeable, and so designed that they can be adjusted at half-inch intervals. Being telescopic in design, these removable members also can be adjusted in lengths from a minimum of 4ft. 6in. to 6ft., or any lengths suitable for the particular aircraft. These tubular members are so constructed as to lock safely at any desired position and thus hold the load securely. The attachment is made by means of a jaw at each end of the removSble member. These jaws are provided with three dowel phis on each half of the jaw which enter into perforations and clamp tightly shut on the tube. The weight of these members is 7 lb. each. Weight of the permanent roof and floor longi- tudinal members, with attachments, is 1 lb. per foot. Cross-members can be so placed that they form either hold-down units, bulkheads, or both. The number of members that are used in a load is entirely dependent on the type-of load, using only as many members as are necessary ill order to hola the load safely and securely in Securing cargo by means of ropes and the hooks and tighteners shownin the bottom right-hand corner*of the previous page. place at any angle of tilt under all kinds of flying conditions. Simplicity has been the keynote in the design of this equipment. This permits its immediate application to air cargo machines now in the process of development, without need for making any design changes. Lockheed AT-IS Hudson Bombers Converted into TrainersT WO trainer versions of the Hudson bomber were in production at the California plant of the Lockheed Aircraft Corp. at the beginning of the year, one for use as a gunnery trainer and the other as a navigation trainer. As converted into trainers from the Hudson III model, the plane is designated AT-18, and is intended to be used only in the United States for training advanced gunnery pupils and in a course of aerial navigation. Most internal equipment of the bomber is omitted. In the gunnery version a Martin turret takes the place of the Boulton-Paul turret mounted on bombers used by the R.A.F., and is equipped with two 0.50-calibre machine guns which pupils fire at wind socks trailed behind another AT-18 trainer. The cabin is fitted with seats, regulation U.S. Army Air Forces radio, inter-com. equipment for pilot, instructor and one pupil, a low-pressure oxygen system and a windlass system for letting out and retracting the target sock through the turret-gun opening. For navigational training the standard Hudson instru- ments are duplicated on a second panel in view of pupils seated in swivel seats at desks', above each'"of which is an astrograph, 01 map of the heavens. Pupils are taught sextant observation in a dome in the cabin roof. Included among instruments on or near the panel in the cabin are an airspeed indicator, an altimeter, a directional gyro., a compass, a clock and a thermometer for indicating atmospheric temperature. The Lockheed AT-T8—trainer version of the Hudson.
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