Well then , Spring is on the way .... sooner or later . Planning for some Nice weather building ...this time ... Comparing the Zephyr and Eagle , the Eagle does give more room at the cost of some aerodynamics.
So here’s a drawing of Eagle framing possibility (not to scale ) ... on the left is a half view looking from the ends, on the right a typical frame cross section viewed from inside . The cross pieces being the inner rails and interior details . Just exploring possibilities ?
The sides could be perfectly straight if wanted, no rules eh ...(well, only a few) ...