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^[[Uncle Frank dove me all around "Camelback Mountain." I took quite a few pictures of it.]] [[photography trade article]] For the big picture: G.E.'s FT-617 flashtube The picture on the left is an aerial reconnaissance photo made at night which illustrates the covering power of the largest General Electric flashtube now available, the FT-617 (above), capable of providing sufficient illumination for photography at two miles' distance. Says GE, "Accompanying each flash is a distinct and starling 'pop!' caused by the sudden expansion (caused by heat from the bulb) of surrounding air...heat from the flash is so intense that it chars wood at a distance of a foot or so from the tube." [[written at base of photo: 05032 (US423/537) 6 June 44 (F/12)//10PO (800)(01408)]] 34 [[end page]] [[start page]] [[photography news clipping]] Step Up P-38J Aileron Booster Operation by George W. Harrison Associated Equipment Section Mechanical malfunctions or enemy action cause P-38J hydraulic aileron booster controls to fail, pilots to lose control, states Chico (Calif) AAF U.R. dated Sept. 25, 1944. Beginning with the serial no. AF-44.26566, contractor installs cable control on all Lightnings to simplify aileron shutoff operation in case of emergency. Handle installed at cockpit right is easily accessible when airplane is in roll or violent maneuver. Overtightening bold, part no. AN4-10A, breaks casting holding aileron booster control valve, according to U.R. from Santa Maria (Calif) AAF dated Mar 6, 1945. When tightening, apply 50-70 in. lb. Abnormal operation of booster control valve, part no. 198982, reported by Ontario (Calif) AAF, Jan 30, 1945 accounted for booster malfunction, may be traced to torqueing beyond finger tightness. T.O. 01-75FF-51 dated Mar 21, 1945, directs inspecting and adjusting 3 AN bolts serving as pivot bearings for central linkage assembly connecting by-pass cylinder, part no. 663082, to [[?-?]], part no. 199084, to make sure nuts are not overtorqued. [[image to right: item of photography equipment]] [/article]] [[article]] Pull B-29 Props Through Cable dated Jan 3, 1945, from 20th Bomber Command states ferrying crews fail to pull props through before starting engines, under impression liquid lock is impossible on R-3350 engines if prop is stopped with yellow dot on hub turned down. Yellow dot on prop hub denotes winterization requirements have been accomplished. Liquid lock is possible, says D.C. Kinsey, Engine Maintenance Sec. Pull prop through 16 blades in direction of rotation, first 4 carefully to detect obstruction, as directed in T.O. 01-20EJ-1 dated Feb 10, 1945, before attempting to start engine. Caution: Do not turn prop backwards. If obstruction is encountered, remove front plugs from lower cylinders; pull prop through several revolutions to clear locked condition; replace plugs. [[caption: Cable provides aileron boost with quick shutoff]] [/article]] 34 [[end page]] [[start page]] Prepare to Remove Tokyo Tanks Difficulties in removing B-17 and -24 wing auxiliary fuel cells are reported in U.R. dated Feb 15, 1945, from 318th Air Services Sq. APO 528. Deflating method devised by W.S. Enslow, Chatham Field, Savanah, Ga, and Lt. C.A. West, FATSC, saves considerable effort. Seal opening with locally manufactured wood, metal, or plastic closures; evacuate cell with vacuum pump, stock no. 7800-665460, attached to fuel outlet fitting. Guide collapsing cell into proper folds manually. When 3/4 collapsed, shut off pump, and pull straps snug. Guide deflating cell into proper folds Add Cable Guard to P-61 Gunner leaning against 1.h. side of P-61 gunner's compartment touches droppable fuel tank release cables running between sta. 175 and 203. Ten lb pressure causes eventual tank release, according to SATSC U.R. dated Jan 30, 1945. To prevent gunner contacting exposed cable, SATSC suggests fabricating cable guard fom.040 in. aluminum alloy, spec QQ-A-362. Attach forward end of cable guard at sta. 203 with support assembly of same material. Contractor incorporates similar guard on P-61B series aircraft, serial no. AF42-39641 and subsequent, advises E.M. Byrd, Aircraft Maintenance Sec. No T.O. will be issued Finish collapsing by hand and tighten straps. Oiling cell interior lightly eases folding. In cold weather warm cell thoroughly with D-2 portable engine heater to avoid cracking walls. Do not use tank or "pig" type vacuum cleaners' carbon brush arc ignites volatile fumes. Requisition pump from class 05-B. No T.O. is contemplated on this method, according to Harry J. Chapman, Associated Equipment Sec. New Diaphragm Smooths B-24 Landings B-24s operate erratically, cut out at low rpm, especially during landings, according to U.R.s and correspondence from mfr's representatives in Australia. Examination revealed 1900CPB-3 carburetor diaphragms were wrinkled, blistered, and deteriorated. Satisfactory results are obtained by changing to perbunan diaphragm assemblies, part now 10833 and 10831. Now on procurement in class 03-D for service aircraft, new diaphragms will be installed at carburetor overhaul as they become available . T.O. will be issued as soon as parts are available, according to L.A. Hardy, Engine Maintenance Sec. [[caption: See U.R. DIGEST (T.O. 00-65-4) dated Mar 5, 1945, for detailed dwgs of support and channel.]] 31 [/article]]
