1、INTERNATIONAL STANDARD INTERNATIONAL ORGANIZATION FOR STANDARDIZATION .ME)KflYHAPOflHAR OPTAHM3AUMR ITO CTAHIIAPTM3ALlMA .ORGANISATION INTERNATIONALE DE NORMALISATION Aircraft - Connections for starting engines by air Aeronefs - Raccords pour le dkmarrage B Iair des moteurs First edition - 1974-1 l-
2、01 w UDC 629.7.082.03-575 Ref. IWO. IS0 2026-1974 (E) 2 Q) 7 % Descriptors : aircraft equipment, engine starters, compressed air, connectors Price based on 4 pages Copyright International Organization for Standardization Provided by IHS under license with ISONot for ResaleNo reproduction or networki
3、ng permitted without license from IHS-,-,-FOREWORD IS0 (the International Organization for Standardization) is a worldwide federation of national standards institutes (IS0 Member Bodies). The work of developing International Standards is carried out through IS0 Technical Committees. Every Member Bod
4、y interested in a subject for which a Technical Committee has been set up has the right to be represented on that Committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. Draft International Standards adopted by the Technical Committ
5、ees are circulated to the Member Bodies for approval before their acceptance as International Standards by the IS0 Council. International Standard IS0 2026 was drawn up by Technical Committee ISO/TC 20, Aircraft and space vehicles, and circulated to the Member Bodies in July 1970. It has been approv
6、ed by the Member Bodies of the following countries : Belgium India Spain Canada Israel Switzerland Czechoslovakia Japan Thailand Egypt, Arab Rep. of Netherlands United Kingdom France New Zealand U.S.S.R. Greece South Africa, Rep. of The Member Body of the following country expressed disapproval of t
7、he document on technical grounds : U.S.A. 9 International Organization for Standardization, 1974 l Printed in Switzerland Copyright International Organization for Standardization Provided by IHS under license with ISONot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
8、INTERNATIONAL STANDARD IS0 2026-1974 (E) Aircraft - Connections for starting engines by air 1 SCOPE AND FIELD OF APPLICATION This International Standard specifies the dimensions of connections for starting aircraft engines by air, which are necessary to ensure international interchangeability of con
9、nectors with adaptors. It also gives the minimum clearances required on the aircraft to provide adequate access for the ground adaptor. 2 DIMENSIONS 2.1 The basic dimensions and tolerances for connections on aircraft shall be as shown in figure 1 and table 1. 2.2 The minimum clearances around the co
10、nnector, on the aircraft, for adequate access for the ground adaptor are given in figure 2 and table 2. 1 Copyright International Organization for Standardization Provided by IHS under license with ISONot for ResaleNo reproduction or networking permitted without license from IHS-,-,-IS0 2026-1974 (E
11、l Design beyond this line is optional I$ u,IAt Ii - 6 * + 4 . I s_ I / I ! - 37” + 2O h n Gauge points y FIGURE 1 - Basic dimensions and tolerances of connaction Copyright International Organization for Standardization Provided by IHS under license with ISONot for ResaleNo reproduction or networking
12、 permitted without license from IHS-,-,-IS0 2026-1974 (E) TABLE 1 - Dimensions and tolerances for connections on aircraft e d Dimension mm in 85 max. 3.346 max oa 84,86 min. 3.341 min 83.9 max. 3.303 max. Ob 83.76 min. 3.297 min 78.77 max. 3.101 max. OC 78,696 min. 3.098 min d 86.4 max. 3.402 max. 8
13、6.26 min. 3.397 min 81,46 max. 3.209 max. ae 81.33 min. 3.203 min Of 76.19 (reference) 3 (reference) 2 1 f 0,125 0.04 * 0005 s 1.5 i 0.2 0.06 f 0008 “1 0,025 0.001 “2 0,125 0 005 V* 66,675 min. 2 625 min. * Minimum length to ensure coupling connection. Increase length when bolted flanges are used 3
14、Copyright International Organization for Standardization Provided by IHS under license with ISONot for ResaleNo reproduction or networking permitted without license from IHS-,-,-IS0 2026-1974 (El c Maximum limit of skin line t -l-r- Design optional line, see figure 1 FIGURE 2 TABLE 2 - Minimum clear
15、ances between aircraft and connection 4 Copyright International Organization for Standardization Provided by IHS under license with ISONot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Copyright International Organization for Standardization Provided by IHS under license with ISONot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Copyright International Organization for Standardization Provided by IHS under license with ISONot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
