Hey RW-1! Are you on EVERY thread?
Okay, I recommend you do not do sideways quickstops, until you have the straight ones down clean - a perfect qickstop is not as easy as it looks.
I do them (sideways) constantly on the filmingjob mentioned somewhere else in Rotorheads. No big deal as long as you donīt steer the cyclic all over the place. However I do them out of a sidways flight, so the camera gets to stop with the same view.
To turn a Robinson fully sideways from .98 or .90 vne is in my experience pretty impossible, as you run out of pedal at about 40 kts. However I donīt get Lu - who does? - A helicopter flies anyway you want!! Sideways it needs more pedal because you put all that drag in the wind, but I donīt see (or feel for that matter...) why you should get more flapping than for straight forward flight for the same conditions? (LU?)
On regular Flying I would not recommend to do them for the engine-out scenario. You would just have to do another chore before going on the "planet" - straighten out your flightpath to aline the skids.
If you need to do a sidewaysquickstop because the job or situation needs it, so......do one....!
Just remember when you start to do these maneuvers to start them slow and analyze your necessary control inputs before something goes upside down!!
Have Fun and Fly Safe,
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