RE: What was your most overpowered airplane?
Not as eye popping as the combos listed above, but when the Webra .50 first came out, it was rated as the 3rd best power to weight ratio engine in the model plane industry. I think the ranking was done between high volume sales type engines. I put one on an Aerosport .20 and flew it for a few years. That engine has over powered every plane it has ever been on. I'm building a delta for it right now.