Guys I know that several guys on this list a full scale jet jocks.....so Yesterday descending from 35K - the pilot did not deploy the spoilers, but rather extended the LE slot and the flaps were 20+ degrees with a healthy nose down attitude. At that time a very loud medium freq vibration started. Very different from spoiler noise. Dropped 15K retracted LE and flaps - noise decrease with retraction. I cannot believe that those vibrations would not cause metal wear of metal fatigue. Has anyone noticed this? I stopped at cockpit and asked pilot - he just gave me the "dog-whistle" look... TIA Jim
Jim Ealy Education by Demonstration RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED] Please note that subscribe and unsubscribe messages must be sent in text only format with MIME turned off. Email sent from web based email such as Hotmail and AOL are generally NOT in text format