{"id":23,"date":"2016-01-01T18:18:33","date_gmt":"2016-01-01T18:18:33","guid":{"rendered":"http:\/\/adriansmodelaeroengines.com\/wordpress\/?p=23"},"modified":"2016-01-03T22:44:37","modified_gmt":"2016-01-03T22:44:37","slug":"h-p-engines","status":"publish","type":"post","link":"https:\/\/adriansmodelaeroengines.com\/wordpress\/?p=23","title":{"rendered":"H-P engines"},"content":{"rendered":"<p>As I noted in my January 2016 Editorial, I plan to publish a history of the British-made H-P engines from the late 1940&#8217;s (<em><strong>not<\/strong> <\/em>the far later Austrian HP units!) in my February issue. I think I have the main facts pretty well sorted out, but could really use some more serial numbers to help with estimates of production figures. In addition, some bore and stroke measurements would really help to resolve some remaining ambiguities regarding displacements. If you have any such information, <em><strong>please<\/strong> <\/em>write a comment in response to this posting! All input <em><strong>will<\/strong> <\/em>be appropriately credited in the final article.<\/p>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"alignnone size-medium wp-image-47\" src=\"https:\/\/adriansmodelaeroengines.com\/wordpress\/wp-content\/uploads\/2016\/01\/H-P-Mk.-III-diesel-no.-D-654-left-side-view-300x240.jpg\" alt=\"H-P Mk. III diesel no. D-654 - left side view\" width=\"300\" height=\"240\" srcset=\"https:\/\/adriansmodelaeroengines.com\/wordpress\/wp-content\/uploads\/2016\/01\/H-P-Mk.-III-diesel-no.-D-654-left-side-view-300x240.jpg 300w, https:\/\/adriansmodelaeroengines.com\/wordpress\/wp-content\/uploads\/2016\/01\/H-P-Mk.-III-diesel-no.-D-654-left-side-view-768x614.jpg 768w, https:\/\/adriansmodelaeroengines.com\/wordpress\/wp-content\/uploads\/2016\/01\/H-P-Mk.-III-diesel-no.-D-654-left-side-view-1024x819.jpg 1024w, https:\/\/adriansmodelaeroengines.com\/wordpress\/wp-content\/uploads\/2016\/01\/H-P-Mk.-III-diesel-no.-D-654-left-side-view.jpg 1200w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>As I noted in my January 2016 Editorial, I plan to publish a history of the British-made H-P engines from the late 1940&#8217;s (not the far later Austrian HP units!) in my February issue. I think I have the main facts pretty well sorted out, but could really use some more serial numbers to help &hellip; <a href=\"https:\/\/adriansmodelaeroengines.com\/wordpress\/?p=23\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">H-P engines<\/span> <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-23","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>H-P engines - Adrian Model Aero Engines - Blog With Adrian<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/adriansmodelaeroengines.com\/wordpress\/?p=23\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"H-P engines - Adrian Model Aero Engines - Blog With Adrian\" \/>\n<meta property=\"og:description\" content=\"As I noted in my January 2016 Editorial, I plan to publish a history of the British-made H-P engines from the late 1940&#8217;s (not the far later Austrian HP units!) in my February issue. I think I have the main facts pretty well sorted out, but could really use some more serial numbers to help &hellip; Continue reading H-P engines &rarr;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/adriansmodelaeroengines.com\/wordpress\/?p=23\" \/>\n<meta property=\"og:site_name\" content=\"Adrian Model Aero Engines - Blog With Adrian\" \/>\n<meta property=\"article:published_time\" content=\"2016-01-01T18:18:33+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2016-01-03T22:44:37+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/adriansmodelaeroengines.com\/wordpress\/wp-content\/uploads\/2016\/01\/H-P-Mk.-III-diesel-no.-D-654-left-side-view.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"960\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"adrianduncan_6jk447wc\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"adrianduncan_6jk447wc\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/adriansmodelaeroengines.com\/wordpress\/?p=23\",\"url\":\"https:\/\/adriansmodelaeroengines.com\/wordpress\/?p=23\",\"name\":\"H-P engines - 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