Originally Posted by quorneng
Aluminium tube is obviously the lightest but "aly on aly" makes a horrible combination that wears very fast.
Steel on aluminium is a bit better but brass on steel is very good, particularly if it is modestly lubricated.
Do you have a design in mind?
No design in mind at the moment. I have future plans to build a DH Mosquito which is my favourite warbird. I'm at the bottom of a very steep learning curve for both flying and building so i don't expect to build it for a year or so. I was just thinking out loud really.