Hey Glenn,Empty weight: 800-830 lbs
Gross weight and limit loads: 1,420 lbs @ 3.8G+/2.0- G
1,350 lbs @ 4G, 1230 lbs@ 4.4+/2- G
Clipped wing option: 1,200 lbs @ 6 G limit, 1,420 lbs @ 4+/2-G
Engine options from 100-140 hp.
The original Ryan ST series had an inverted inline Menasco pirate engine ranging from 100-150 hp. The Rotax 912, it is a very light engine by comparison, and for the Timber Tiger ST-L design to faithfully follow the lines of the Ryan ST, a bit of nose ballast is necessary to bring the CG to where it needs to be. That said, a higher firewall forward weight isn't likely to be a problem giving you more engine options. Figure the max engine weight is around 230 lbs. The caveat is selecting an engine that fits the narrow confines of the inline appearing cowling.
We have a builder using a Verner 7 cylinder radial, and another using the UL Power. We also show options to use a small Continental with the cylinders poking out the sides kinda like a cub.
I’m a new ST builder, and loving all your posts and photos! We met at Oshkosh ‘24. Q: What is the internal width of the cowling, i.e., I’m thinking of what engines can fit that width? The ULPower option would have the great sound of direct drive, but it’s wider. I have more questions later on your landing light installation, etc. Thanks!