RE: Thurst tube/ engine alignment
Danno,
Very good point...I can use the doughnuts for alignment then attach similar to your method....How are the bolts you're using attach to the tube ? Do you have any pics of the front end of the tube and how it is being held in your airplane..... This plane has been thru a couple of conversions and many of the original formers and braces have been modified or are missing]
Bill