I have a used ?Ultra Sport? (sorry don't know the exact model name). It has a Super Tigre 46 on it. My problem is the last two times in the are I have had a major problem with the exhaust stack. Two flights ago it cracked. So this time I replace it with a new one and after a couple of minutes in the air the exhaust stack fell off. The screws had evidently vibrated loose. I used lock washers and thread lock when I put the new exhaust stack on. It appears I have a major vibration problem. Does that make sense? After I got home tonight I replaced the prop thinking maybe the old prop has seen better days. Any suggestions of things I should be doing or trying?
Thanks for the help
Still Learning