I have some really big old blueprints for the IO-360 that are labeled Instillation Drawings from Lycoming. They are getting a bit worn as they are atleast 40 years old by this point. Are those still available from Lycoming or would it maybe be wise to try and get them digitized at some point ? They're too fragile to feed into a machine so it would have to maybe be a giant flatbed scanner to do the job. I believe they are drawn to half scale.
