Today a friend gave me a Cox .15. It's not a Conquest, but a throttled Medallion. I will run it tomorrow and tach it. If I feel like it's strong enough I might build a PP around it. At least it will be loud. But with today's mini servos and rx's it will be easy enough to build one very light. I've generated a set of rib patterns for a built-up wing that could be lighter than the foam cores, too.