Beam Span to lift a small plane
Hello,
Im new to the forum and not an engineer. I am a small time carpenter in Southeast AK. I have a friend with a small plane, 1200 lb dry, maybe 1500 lbs with fuel. He keeps it in a hanger and would like to get it off the ground to do a few different projects on it. Above the plane are two big I beams, not sure exactly, maybe 20" tall, not sure about the width, but very strong according to him. I have no idea about the supports for these beams but feel safe assuming that its well founded. The problem is that they run perpendicular to the direction he needs them to run. He wants to put a beam between them in order to hoist the plane. The existing beams are about 20 feet apart. I think a chain wrapped around the "new" beam and some sort of chain hoist/come-a-long will be used. This load will be centered, not likely to swing much, and not held up for long, maybe 24 hours at a time. I need to know what size beam we need. one thing to consider: materials are not cheap to get here: there is no road in to town, all things must be barged in. Wood would be best for me. I'm not a welder.
Thanks for any help in advance.
David