Harmonic_Vibe Posted March 7, 2005 Report Share Posted March 7, 2005 I'm flying a 212 building towers right now. The machine is in fairly good shape but it's a beefy 6900 lbs empty... not what we would call "a good lifter" in Canada. Two or three times I have been coming in with a load and just as I'm arriving the machine starts to rock and roll. I fly through but it's a very uncomfortable ride for a while until I get in the green on airspeed and then it dampens out. Yesterday I was bringing in a 2400 lb compressor to a site at 6000 feet or so and it started to happen. I was not waving the stick around and was under complete control (well... as controlled as I ever get) and in the space of about 5 seconds I was bouncing in my seat and felt like I needed a training bra... or maybe that nice red one that Skully was referring to in an earlier thread. This time it took forever to dampen out and I was very close to saying "bah bye" to the compressor... pretty scary I must say. Every time it has happened has been a very windy day... and the locations all suck. You couldn't pick worse locations on mountains with respect to windy conditions. Do I have a bad mount or something? Or is it just a normal thing in some wind conditions? I remember about five years ago a pilot always complaining about pylon rock (or pylon whirl as some people say) in one of VIH's 205's... But I flew it and never noticed anything amiss. The consensus then was that there may be a bad mount or two but the "rocking" was directly proportional to the roughness of the pilot. I've got a fair bit of time doing this kind of thing and I would think that if I was so rough it would have turned up sooner... wouldn't it? In this case the engineer can't find anything wrong but I seem to recall that there's some check you can do where you introduce a perturbation (today's word... there's a quiz later) and see how many oscillations you get before it dampens. I don't want to end up punching something off... That's not the way to become famous over here. Any info is much appreciated. HV Quote Link to comment Share on other sites More sharing options...
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.