Return-Path: Received: from [24.25.9.101] (HELO ms-smtp-02-eri0.southeast.rr.com) by logan.com (CommuniGate Pro SMTP 4.2.1) with ESMTP id 406211 for flyrotary@lancaironline.net; Sat, 11 Sep 2004 01:24:24 -0400 Received-SPF: none receiver=logan.com; client-ip=24.25.9.101; envelope-from=echristley@nc.rr.com Received: from nc.rr.com (cpe-024-211-191-066.nc.rr.com [24.211.191.66]) by ms-smtp-02-eri0.southeast.rr.com (8.12.10/8.12.7) with ESMTP id i8B5NsNr004055 for ; Sat, 11 Sep 2004 01:23:55 -0400 (EDT) Message-ID: <4142855A.5020202@nc.rr.com> Date: Sat, 11 Sep 2004 00:55:54 -0400 From: Ernest Christley User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.6) Gecko/20040113 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Rotary motors in aircraft Subject: Re: [FlyRotary] Re: Engine off the floor References: In-Reply-To: Content-Type: multipart/mixed; boundary="------------060901060003070104090200" X-Virus-Scanned: Symantec AntiVirus Scan Engine This is a multi-part message in MIME format. --------------060901060003070104090200 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Ed Anderson wrote: > Looking good, Ernest! > Not quite certain I understood your pan attachment arrangement, but you > want to make certain that the Pan is structural quality steel - which being > an oil pan it may not be. You may need something like the 1/4" plate to > carry the load. > > Ed > Having cut a slice from the pan, I can vouch that it cheap steel. But it is THICK and it is steel. A picture should clear any confusion. The red areas of the attached sketch would be the 1/4" plate. The arms would be long enough to catch a reasonable number of bolts. The way I'm seeing it, the block sits on a plate that sits on the mount pads. Because the mount pads are not directly under the block, there is a torque moment on the ear with the fulcrum at the corner of the block. As long as the ears don't bend (I'll have to run numbers to determine if 1/4" is enough to meet that demand), then the arms simply have to counteract that torque moment. I just don't see what all the metal in the middle is doing except weighting the aircraft down. Paul Lamar's sight has a tutorial that quotes 800ft.lb. as the maximum torque pulse from the engine. I'll need to add that to the maximum 10G load limit (situation: trying to pull out at the last second with full power, but slamming the nose in anyway). It's too late tonight, but I'll take measurements and try to run some numbers tomorrow to see if this is even worth pursuing, but it sounds good at this late hour 8*) In the likely chance that I'm missing something, I'm all ears 8*) -- http://www.ernest.isa-geek.org/ "Ignorance is mankinds normal state, alleviated by information and experience." Veeduber --------------060901060003070104090200 Content-Type: image/gif; name="snapshot1.gif" Content-Transfer-Encoding: base64 Content-Disposition: inline; filename="snapshot1.gif" R0lGODlhAAFWAaEAAP///wAAAP8AAP///ywAAAAAAAFWAQAC/oSPqcvtD6OctNqLs968+w+G 4kiW5omm6sq27gvH8kzX9o3n+s73/g8MCofEovGITCqXzKbzCY1Kp9Sq9YrNarfcrvcLDovH 5LL5jE6r1+y2+w2Py5OBuv0emOsvdoH/DyhgtweEZ4jTF6gYOEiIWLcI2BgDGWnJmOcok3iJ mdkS0CkqqQkTOmr5mVKJOlpXusLauviKcjrbqgpLcoubetLr67rLGyxMq/thfNyZTLyxzEwr Ei39+9xRbc0Ior09ja3h/f3njDFOXh4uni5qboHe7ve+7hCfTi9xLy9YT7GPDxq/XP4mACSX D8LBgAUVDkSVsMHCdhH9TfxWccFF/oQN7T0kyOcjxI4SRQ6DZ3IkSQUbMYZM6W4lS5iXMiJo yVHmAZwuK/DcZpPYT2tBAQyVVhTWUWZFlx5LWsqpsKY0mxm6ijWr1q1cu3r9ChZs1ZoomYY9 ixYqF6m+qDJVxBbkk7R0zyJ9ORXuWHBz90pKJehu2byM/HKDEtcd4I1JLxpLfLKv4cCRQjnO MPHxZHWIN1ezzBTzU72b+3We/JnyVNGE/5ZWywNyzcWhWeN6XDf3JCeyAVdWfZvDQc0q3+jO nUrWLNgGhpOOrFNjM9+rs91+3iy6x9m/nypbjv2a9pLUw8v1cI842fEPUncPTg2i+cPst9Mq f77bOPVw/pk3jObecsBMVxhf9UWwTIDFmaCcaw6W459MyiloFQuclPPcbgf69GCBMZnCCm61 bCjOKRQiU8MdcJHYDXAeVqbDYyzqhx+EEcZH34zWvTfPiDvIqCN6yd0RBJBBCvfLjSoYeSQ7 MCq5yopNCvQkEUxOideKUNoiJZbnJGlll14OpmWYOY75D5hDXImmPmoKwWabDlW5pphyIvhm kXbe2V6ehezJJ3nTbDngmYEKWmadhh4qHZ1wAspoAp8ZZSYpkdqX6KOLXrqTnz/EyWlznvoA aqiTEsogpKaO2kOpnJ5aKWehzuSonpuuWuuft77Kamyq8prrp79eCquils4q/mmvPw4babGa Hotsp8GSyiyjztoKbbRGKRtjtYdeq2u20YIr7K7EcpuDq+dO26q3gZJLrbnNakXpmldp+4+V +Iqj777n9OsvPAAHnO+aBAts8MEFw6nwwkU2bNDAENsj8cQMoFoCxt9WbDFLHHd808cgNyfy yBqPcDKfKYewspwtKzOyRCWD/DJ6MV88c8c1Z3OzRjlbvLNwPXuc8NA7/Txx0NAYHXLRTCvN L9MkO2001JhJPTXDWFv979ZIQ8w1H1jXq7XUYSNs9tcNn+3T2Gw7XLXaCr8dsddUD023Pm7L fXDeCO59d89+KwR42U/zTfDg7RX+sN2Gxx34zYpT/ux442lHHvPkMldeCOOdc/6p56GDTqro pZPequmpox6b6q2z/qPrscMeo+y1056u7bnjjojuvfN+g+bRCe8z8DYQLyHiASMvqe/BO388 9ClKTwPzJFl/tPHTa1899TNg/5/y/oJP9uGYmyz+vuSTb1H6+K7v/SbxUzK/KfW/wH498HP/ /f0u5L+O/V3ucXhzn7YEaD4CCs6A42IgshAIOQVKzoGzgmABz0czCppKg6/iILE82CwQWkuE G8Ogzkj4LhSqTIV3suACTQg0FrpMhm1y4QRhmDQaosmGmdPhmHiIPhyCzYdeAh+95navZ8kL V+Jql4GW567qwWhuUfze/hT7VsVNXDFxWaTEFqG4xON9cXxdNMUY1VdG/J3xfWn83xoP2EZQ vHFccbTQHB9Yx1jcsYJ5XNIemSircIVxXU301RPJOEgpHhKNibTiItnYSC0+Eo6R9OIk6VhJ M14Sj5lU4yb52Ek3fhKQ8zBWKGvYxyiNEliFXNYqCRnIcqVySupCxB9ZGct4zbJJtQzeLWFZ yk9dqJWYJCYlVDSPymiIksb8H4De46Ni2miZsWhQhzAkiWjOiz+CoGbGXMGjZhbRRPPpkS3i 8UxlfqsX3OzPN3MRzl1apJ3o0CY0AJLOmgAwC/nEJnSodJ37/FNH1kzmi9zhn8zEUzwEJdA1 /j/0pdEIdEEk2k85s5Oltix0PRUF50Hz46a3TJSi7EHnRSEaUpGe9JcWkc9HQYopia6UpeFI z0w5OiekbBSj49lHO+HTJ6DslKfDA89LBZRTnR5nqVlpAz5vStRGCbU3tVnDU4+KVEQptTQo tRdTvwrVqCYLIy7iqjxVadaP8oQePwFNWmkqxrdec61a3apcz8qluxr0oW2p61uo6h0jANao fO2rVKeq11NqUq8/rQ6tyDpYwxYhsi4tLFDHipGCvhWAX+3sVXLyWIR4drSkLa1ph2lWc1D2 sv9h7MUSq1g4rBanN4GtOHcxW4ZiNrH7nKxrX2vb3vp2szG9q3BjlcVVttrWNBKSaz5yS9vr OTeovy1qavFk3JKmNSLQfWVNk2uQ6danuzbpbjAPlNugmJe56DVMY8DLotVCJb1Biixs5MvL qiQUsPaML0yU1JvjVkGzQNkSgYki4CtIRWMLXic+UobaqfS3hi2ZMMock+AwHFid+EPmkCy8 TW8Q6XhHTFqJx4biFKt4xSxusYtfDOMYx6wAADs= --------------060901060003070104090200--