I think I am starting to understand what is happening, so when you increase the throttle to 3/4 up to full, the air on the bottom of the horizontal stabilizer will now be moving faster the air on top of the horizontal stabilizer. I take it that the speed of the exhaust from the engine is causing the air to move faster under the stabilizer then the air on top of the horizontal stabilizer so you are getting two different air speeds acting on the stabilizer at the same time. So that is why the jets that have the exhaust of the engine back past the stabilizer do not have this issue. Am I getting the right? Please give me any info you have. I am sure,I am not the only one that is trying to understand this issue.
I can't thank you enough for your help
T Perk
Last edited by TPerk; 12-18-2016 at 03:17 AM.