NAVY MIL-C-21189 (1)-1959 CLOTH LAMINATED ZPG2 AND ZPG2W TYPE AIRSHIP ENVELOPE《ZPG2 和ZPG2W型飞艇壳夹层布》.pdf

《NAVY MIL-C-21189 (1)-1959 CLOTH LAMINATED ZPG2 AND ZPG2W TYPE AIRSHIP ENVELOPE《ZPG2 和ZPG2W型飞艇壳夹层布》.pdf》由会员分享，可在线阅读，更多相关《NAVY MIL-C-21189 (1)-1959 CLOTH LAMINATED ZPG2 AND ZPG2W TYPE AIRSHIP ENVELOPE《ZPG2 和ZPG2W型飞艇壳夹层布》.pdf（1页珍藏版）》请在麦多课文档分享上搜索。

1、H- 57-70 MILC=21189 (Aer) Amendmen% -1 15 July 1959 MIUTARY SPECIFICATION CMTH, LAMINATED, ZFG2 Aim ZK2W TYPE AiRssIIP ENVELOPE This anienchent forms a part of Military Specification Ma-C-21189(Aer) of 13 December 1957, and has been approved by the Bureau of Aeronautics, Department of the Navy. Page

2、 3, Paragraph 3.6, Table II, Breaking strength: Page 3, Paragraph 3.6, Table II: Delete “per cent retentionn and substitute “per cent of specification ndnimum strength retained”. determined as follows: Add note: “Specification ndnlrmun strength shall be SSs = ss x where: Sc - Actual Breaking Strengt

3、h (Cylinder Wirst) s, st% = Specification Breaking Strength (Cylinder Burst) Ss minimum of six sanpies from same roil used for cylinder specimens .II = Actual Breaking Strength (strip) based on Page b, Fagraph 3.6, TaMe II, Cylinder bursting strength, punds/inch, minimum; add: bias ply, bkrp . . . .

4、 . . . 295 Filling 260 Page 5, paragraph 3.11 Bias Seam Delete and substitute therefor: tt3.11 Bias Seam - The bias seam shall not be less than 3/4 inches in width. seam shall be free from ragged or uneven edges and shall be free from loose threads inbedded in the coating compound on either outside

5、surface or between plies.n The Page 12, paragraph 4.4.5.3.1, Table VI, Cylinder elongation: klete: “10.5 psi pressure for an 8 inch cliamter cylinder” and substitute: diameter cylinder“ . “12.0 psi for an 8 inch I Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-