1、20 MARCH 1951 Superseding AN-R-31 6 June 1949 MILI TARY SPEC1 FI CATI ON REEL; WW-TARGET, 12,OOO-FOoT CABLE CAPACITY, AIRBORNE This specification was approved by the Departments of the Army, the Navy, and the Air Force for use of procurement services of the respective Departments. 1. SCOPE 1.1 This
2、specification establishes the requirements for one type of airborne to+ target cable reel, as shown on Drawing AN8030, capable of reeling in, storing, holding and reeling out 12,000 feet of l/ Preparation of (for Engines, Accessories, and Other Auxiliary Equipment ) Packaging and Packing for Oversea
3、s Shipment - Boxes; Wood, Cleated, Plywood Packaging and Packing for Overseas Shipment - Boxes, Wood, Nailed Packaging and Packing for Overseas Shipment - Barrier-Materials, Waterproof, Flexible Packaging and Packing for Overseas Shipment - Plywood, Container- Grade Packaging and Packing for Oversea
4、s Shipment - Adhesives; Water-Resistant, Case Liner Marking; Exterior, Domestic and Export Shipment, I - Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-R-7172 (March 1951) 2.102 Other Publications,- Air Force-Nan Aeronautical Bulletin No. 143 Sp
5、ecifications and Standards - Use of Inireau of Sumlies and Accounts Navy Shipment Mrking Handbook 2.1.3 Drawings.- Air Force-Navy Aeronautical Standard Drawings AN8030 Reel - Tow-Target, 12,000 Foot Cable Capacity, Airborne Air Force-Naw Aeronautical Standard Issue of BuAer Drawing No. 388687 Reel;
6、Tow-Target, 12,000-Foot Cable Capacity, Airborne - General Arrangement for (Copies of this specification and copies of other publications referenced herein or required for Government procurement, and the Index of Military Aeronautical (AN or PIIL) Standards, may be obtained upon application to the C
7、ommanding General, Air Materiel Com- mand, Wright-Patterson Air Force Base, Dayton, Ohio; or the Commanding Officer, U. S. Naval Air Station, Johnsville, Pennsylvania.) 3. REQUIRFMENTS 3.1 Mterials. - Materials shall conform to applicable specifications as specified Materials which are not covered b
8、y applicable specifications or which are not herein. specifically described herein shall be of the best quality, of the lj,ghtestpracticable weight, and suitable for the purpose intended. .3.iol Metals.- All metals used in the construction of reels shall be of a corro- sion-resistinm or shall be sui
9、tably protected to resist corrosion during the normal service life of the reels. The use of dissimilar metals, especially brass, copper, or steel, in contact with aluminum or aluminum alloy shall be avoided whenever practicable. When such contacts are unavoidable, the metal shall be properly protect
10、ed against electro- lytic corrosion. 3.1.2 Selection of Materials.- Specifications and standards for all materials, parts, and Government certification and approval of processes and equipment, which are not specifically designated herein and which are necessary for the execution of this specifi- cat
11、ion, shall be selected in accordance with ANA Bulletin No. 143, except as provided in the following paragraph. 3,l.2.l AN or JAN Standard Parts.- AN or JAN Standard parts shall be used wherever they are suitable for the purpose, and shall be identified on the drawing by their part numbers. used, pro
12、vided they possess suitable properties and are replaceable by the AN or JAN Stan- dard parts without alteTation, and provided the corresponding AN or JAN part numbers are referenced in the parts list and, if practicable, on the contractors drawings. In the event there is no suitable corresponding AN
13、 oc JAN Standard part in effect on date of invitation for bids, comercial parts,may be used provided they conform to all require- ments of this specification. Commercial utility parts such as screws, bolts, nuts, cotter pins, etc., may be 2 Provided by IHSNot for ResaleNo reproduction or networking
14、permitted without license from IHS-,-,-MIL-R-7172 16 7777706 OLSSLI W I - 32.1 General.- Airborne tow-target cable reels shall, in general, consist of a , drum, chain-drive assembly, fluid motor, clutch, brake, and level wind assembly. Assembly and all detail parts of reels shall be in accordance wi
15、th all the requirements contained in the applicable Air Force-Navy Aeronautical Standard Issue of the Bureau of Aeronautics Drawing specified in Drawing AN8O3O. stand, without failure, abuse such as dropping of hand tools, and personnel standing on the reel frame, and such other conditions as are in
16、cident to shipping, stowage, installation, and service. The reel shall be constructed to with- 3.2.2 Finish.- Completed reels shall be free from sharp edges and burrs and shall be finished in accordance with the applicable drawings and specifications. 3.2.3 Assembly.- Reels shall be completely assem
17、bled withouk interference, binding, or misalinement of any parts. Changes in manufacturers part numbers shall be governed by the drawing number require- ments o . Specification MIL-D-5028. Y- plicable drawings and specifications: (a) Temperatures: Under ambient temperatures of between -54OC (-65F) a
18、nd 71C (160F). (b) Mounting: With reel drum axis tilted 30 degrees from the horizontal. (c) Pressure: Under atmospheric pressures prevailing at alti- tudes between sea level and 40,000 feet above sea level. (d) Acceleration: At accelerations up to 4 positive gs and 2 negative gs. (e) Moisture: Under
19、 conditions of moisture such as would result if the reel were soaked by rain and operation commenced immediately thereafter. (f) Vibration: When subjected to vibration attendant to all normal aircraft installations. 3.5 Performance.- Reels shall satisfy the performance requiremnts gpecified in Secti
20、on 4 when subjected to the tests headed as follows: (a) Capacity (b) Static Load (c) Dynamic Load (d) Life Expectancy REEL, TOW-TARGET, 12,000-FOOT CABLE CAPACITY, AIRBORNE AN8030- (proper dash number) Stock No. (USAF OP Navy,. as applicable) Manuf aoturer 1 s Part No. flanufacturerls Serial No. Con
21、tract or Order No. l and the fact that the Govern- ment may have formulated, furnished, or in any way supplied the said drawings, specifications, or other data is not to be regarded by implication or otherwise as in any manner licensing the holder or any other person or corporation, or conveying any rights or permission to manufacture, use, or sell any patented invention that may in any way be related thereto o custodian: Navy- Wer Other interest: Air Force Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
