1、MIL-B-493 67 9777906 OL4446 b d Y MIL-B-8493 (USAF) 10 Augurt 1953 MILITARY SPECIFICATION BODY, STILL PICNRE, AIRCRAFT RECOHNAISSANCE WU, TYPE D-3 1. SCOPE 1.1 !Chis specifioation oovers one type of aircraft ornera body for Tne ornera bo* is obtaining 9 by 18 inoh reoonnaissance photographs when use
2、d in oonjunation with interohangeable lens cones and film magazines. designated Type D-3 and is a oompanent of the KA-l( ) cantera. 2. APPLICABLE SPECIFICATIONS, STANDARDS, AND DRAWINGS 2.1 The following specifioations, standards, and drawings of the issue in effect on date of invitation for bids, f
3、orm a part; of this specifioation to the extent speoified herein8 SPECIFICATIONS MIGL-9031 U. 8. AIR FORCE Magazine, Film, Airoraft Carra, % phraseology shall be appropriate. One cable shall be a camera to dc power and oontrol A,“7007-72 and the other an adapter cable with connectors pin designation
4、s and wiring as indioated in Figure 4. omera to the Universal Camera Control System, the cable shall be arranged in the fonn of a V with the wire segregated and bundled as shown on Figure 4. To properly mate the 3.3.9 Mounting provisions.- Ie camera body shall have mounting peds as shown on Drawing
5、No. 52017885. 3.3.10 Miscellaneous provisions t 3.3.lO.l Dust cover.- Readily removable dust oomrs shall be provided to protect the mounting surface and to exclude dust from the omem body interior when the equipment is not assembled with its assooiated equipment. aie design of the duat ouver shall b
6、e such that it foms or provides suitable weight bearing surfaces for packing the equipment in carrying caees oonfo+ . .! 5 to Specifioati on MIL-C-O. i * I Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-z f 8 MIL-B-8473 67 777770b 0148452 1 # Provid
7、ed by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-B-Li73 67 M 7777906 OLLiBL153 3 M + ADAPTER CABLE F16URE 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-B-473 67 H 7777706 OLLl45Ll 5 H 3.3.10.2 Cy
8、cle counter.- A five place non-resettable additive count-ar sha.11 be provided on the camera to maintain a record of the number of cycles accomplished. !Chis counter may be readable from the inside of the camera. be placed in a prominefit position on the exterior of the camera to indicate the requir
9、ed direction of camera flight, with wording lEZIGHT DEWTION“ The f Light direction ehall be as sham on Drawirg No . 52D17885. shall not exceed i70 watts measured at 28 volts dc, and 4 va measured at 115 volts ac 400 cycle regulated. 3.3.10.3 Flight direction indicator.- A pemenantly legible arrow sh
10、all 3.4 Paver consumption.- The tota power conamption of the camera body 3.5 Dimensions.- Ilie outline dimensions of the camera body shall be in 3.6 Wei-f - , r , Y- Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-. .,_ 9 , I- 1 MIL-B-Bq93 67 a 77797
11、06 0348455 7 W -10- 4. SAMPLING, INSPECTION, AND TES PR OC 4.1 Sampling, inspection, and test procedures shell be in accordance with Specification MILC4492 and as specified herein. 4.2 Ixlrability test.- Xch sample item, except the timer servo, shall be operated at 8OQ f 2OP for 12,000 cycles using
12、a tripping pulse-of 28 volts dc of to 360 milliseconds duration ad with a 2i3 volts dc power supply in accordance with the following procedure: 1 !Che item shall be cycled at 3 second intervals. applied to the qzine drive coupling, fiilure resulting from the test fixture ualfunctions ahall not be ca
13、use for rejection during this test. (3) A total of two malfunctions be permitted during this test. A malfunction shal-:be interpreted as a condition resulting from chmage or wear of a part or parts which require repair or adjustment of the item being tested to return it to proper operating condition
14、s, (4) Time duration between ahutter puises from the butter speed timer as listed in Table I and the time duration between the start of the control puise (intervalometer pulse) and the closing shutter puise from the shutter timer, shall be measured at the beginning of the test and at the completion
15、of each 4UOO cycles. A charge of time duration between the $rutter puise from the shutter speed timer in exces8 of 10 percent from that originally measured, or a time duration between the control puise and the closing sirutter puise from the shutter timer in excess of 100 milliseconds shall constitu
16、te ceme for rejection. 4.2.1 Timer sem durability.- phe timer sem assembly consisting of the servo motor, gearing, potentiometer end. switches, as specified herein, shall be capble of ContinuouS cycling from maximm angle to minimum aagle and return for a madmum total time of 200 hours at a rate of i
17、5 complete cycles per minute ani at an ambient temperature of 80 i x)V. 2 A smted niagine load of 95 to no5 inches shall be Ii 4.3 fn teapasture test (equpnt operating).- When the body tempera= ture has been stabilized as specified in Specification MILG8492, the case drive shall be operated for 100
18、cycles at ruaaway opemtion with a load of 100 pcmni and the fact that the Government nq have formulated, furnished, or in any way supplied the said drawings, specifications, or other data, is not to be regasded by implication or otherwise as in any manner licensing the holder or any other person or corpomtion, or conveying any rights or permission to mamfacbe, use, or sell any patented invention that my in any wy be related thereto. OP0 820205 -. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
