Where this thread has gone is very interesting.
I never said the question was related to building planes.
In fact, it relates to an engine test stand I am starting to design/build.
Don't panic, the main parts will be hardwood, probably Maple.
The pine, actually I bought 1/4" Poplar from HD, is for mounting
the fuel tank and throttle control parts.
I'll post pictures when I'm done. It's based a design I found here on RC Universe.
Should be a fun project, I need to learn to make finger joints for it.
Thanks to the PBS show Woodsmith Shop for the help.

Don't get me wrong, this has been an interesting and informative thread.

Gray Beard, I'm jealous that your club has such fine equipment.

Thanks and Good Luck to all,
KW_Counter