{"id":559042,"date":"2024-11-05T18:22:46","date_gmt":"2024-11-05T18:22:46","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/esdu-910201991\/"},"modified":"2024-11-05T18:22:46","modified_gmt":"2024-11-05T18:22:46","slug":"esdu-910201991","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/esdu\/esdu-910201991\/","title":{"rendered":"ESDU 91020:1991"},"content":{"rendered":"<p>\n\tESDU 91020 presents data on the variability of civil aircraft and engine performance quantities drawn from a report of the ICAO Standing Committee on Performance, and also more recent information on the variability of turbo-fan engine performance quantities. These latter data are given as ranges of uncertainty and are converted to the ICAO form of a standard deviation using information from ESDU 91017. The variability data are then used to calculate the variability of take-off climb gradient; the methods of ESDU 91017 are again used, this time to calculate the overall variability arising from the cumulative effects of the individual variabilities in drag, thrust and weight.\n\t<\/p>\n","protected":false},"excerpt":{"rendered":"<p><b>Variability of Standard Aircraft Performance Parameters<\/b><\/p>\n<table style=\"width: 100%\" border=\"0\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td>Published By<\/td>\n<td>Publication Date<\/td>\n<td>Number of Pages<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/pdfstandards.shop\/product-category\/publishers\/esdu\/\"><b>ESDU<\/b><\/a><\/td>\n<td>1991-10<\/td>\n<td>10<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":559052,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2675],"product_tag":[],"class_list":{"0":"post-559042","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-esdu","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/559042","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/559052"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=559042"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=559042"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=559042"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}