Dave,

I've had the Tiger Moth up for about ten flights now, and it's a real sweet plane. Last couple of flights I noticed that if I get aggressive and spend most of a 10 minute session at high throttle, the engine "sags" - drops down to idle, and only returns to a higher throttle setting after 5-10 seconds. This happens after about 6-8 minutes of flying. Could this be symptomatic of overheating?

Thanks,