PPRuNe Forums - Search Results

Search: Posts Made By: SplineDrive

Showing results 1 to 2 of 2
Search took 0.00 seconds.

Forum: Rotorheads

21st Apr 2021, 22:38

Replies: 21

whats the technical cause of the massive two-per vibrations of an airworthy Huey

Views: 6,494

Posted By SplineDrive

It’s a long video so I’m not sure which minute...

It’s a long video so I’m not sure which minute mark you’re referring to, but I did scrub through and see the cockpit video when the ship was at some ground idle condition with the crew clearly...

Forum: Rotorheads

20th Apr 2021, 18:59

Replies: 21

whats the technical cause of the massive two-per vibrations of an airworthy Huey

Views: 6,494

Posted By SplineDrive

Once the rotor is out of a pure hover and has...

Once the rotor is out of a pure hover and has edgewise airflow, there are significant harmonic air loads on each blade. 1 per rev, 2 per rev, 3 per rev and so forth. These forces variously sum or...

Showing results 1 to 2 of 2