Lawrence and Dennis, I just read your posts. There is a very easy “test fix” for the noise if it is the canopy being slightly bent in. That would be to use tape to fashion a fairing that will force the air flow to NOT hit the outside rear corner of the fuselage at the canopy joint. If it works then a more permanent solution can then be made. And if that doesn’t fix the problem then removing the tape should cause no damage. I’ll look into it the next time I’m at the field. John Lincoln