To: Nick Lappos
“Nick sez:
Lu is (again) wrong. That hypothetical maneuver is to analyze the design, and is NOT performed in flight for civil helicopters. It is NOT similar to any certification maneuvers, and is NOT a requirement
“The issue is that you can't admit when you make a mistake! Why not try to learn from the others”?
Response:
I was addressing sideslip and out of trim flight not the kick turn or whatever it is called.
Why don’t you read what I post and not jump to conclusions and immediately say I am wrong.
AC-27-1 paragraph 27.177.b.2 recognizes that some helicopters experience excessive flapping of the main rotor and tail rotors when the helicopter is in a sideslip. To establish this side slip/flapping limits the respective rotors should be instrumented. CFR-14-27.177 requires testing of the controllability at side slip angles of plus ten degrees, left and right, and CFR-14-27.351 requires full deflection of the tail rotor pedals (left and right) while airborne from 0 to 0.6 Vne to attain a 90-degree sideslip.
If the R-22 demonstrated the maneuvers shown above and past then why did the Engineers at Georgia Tech state in their report to the FAA that sideslip and out of trim flight would result in high flapping loads and excursions and end up with mast bumping. This is what precipitated the FAA Priority AD.
Would you want me to wash my shorts in a flavored detergent before I ask you to eat them?
PS My spellchecker made a few corrections in your post shown above.