I’m using quarantine to work on a Sebart Avanti XS. It has a 120mm fan running on 12S. The fuse is fiberglass, the wings are wood, and it has a wingspan of 1.8m. For comparison, the plane in my hand is the Freewing foam Avanti S (wingspan 1236mm) that many of us have. I chose a carbon-fiber 17-blade fan (optimized more for thrust than for top speed). – Mark Davis