div class=trans-pagebuttonPage 1button div class=trans-image amp-img class=trans-thumb alt=Page 1: Rating Certificate Merlins 28 29 and 31 - WWII Aircraft Performance · Rating Certificate Merlins 28 29 and 31 Author: Ministry of Aircraft Production Subject: Rating Certificate src=https:reader030fdocumentsusreader030viewer20220410155ec7444733c6bc10b5456458html5thumbnails1jpg width=142 height=106 layout=responsive amp-img divdivdiv class=trans-pagebuttonPage 2button div class=trans-image amp-img class=trans-thumb alt=Page 2: Rating Certificate Merlins 28 29 and 31 - WWII Aircraft Performance · Rating Certificate Merlins 28 29 and 31 Author: Ministry of Aircraft Production Subject: Rating Certificate src=https:reader030fdocumentsusreader030viewer20220410155ec7444733c6bc10b5456458html5thumbnails2jpg width=142 height=106 layout=responsive amp-img divdivdiv class=trans-pagebuttonPage 3button div class=trans-image amp-img class=trans-thumb alt=Page 3: Rating Certificate Merlins 28 29 and 31 - WWII Aircraft Performance · Rating Certificate Merlins 28 29 and 31 Author: Ministry of Aircraft Production Subject: Rating Certificate src=https:reader030fdocumentsusreader030viewer20220410155ec7444733c6bc10b5456458html5thumbnails3jpg width=142 height=106 layout=responsive amp-img divdivdiv class=trans-pagebuttonPage 4button div class=trans-image amp-img class=trans-thumb alt=Page 4: Rating Certificate Merlins 28 29 and 31 - WWII Aircraft Performance · Rating Certificate Merlins 28 29 and 31 Author: Ministry of Aircraft Production Subject: Rating Certificate src=https:reader030fdocumentsusreader030viewer20220410155ec7444733c6bc10b5456458html5thumbnails4jpg width=142 height=106 layout=responsive amp-img divdiv