I thought it would be good to try a few four point piro's. I started out with my Trex 450. Everytime I made a tail rotor input, it rolled or pushed itself off the center axis everytime I moved to the next 90° point and this proved to be a less than precise maneuver. Then I pulled out the Vibe 50 and did it. It came out exceptable for only trying it a few times. It still required a little bit of cyclic correction but not much. I could atleast hold it in a one foot area. So my question is. Is the Vibe able to do this maneuver better because of the higher weight keeping the tail rotor from pushing it off of its vertical axis? is the Vibe just a better design of a heli?
07-01-2008 02:41 AM
jbiter Veteran Location: Orlando, FL
Probably due to the higher weight of the 50. Any slow piro will require constant cyclic corrections. The problem with a 450 lies in it's low inertia. Jeff
07-01-2008 04:20 AM
krashtagain Veteran Location: ohio
Are you having any interaction issues maybe causing this problem ?
Learn to 3D or die trying !!!!
07-01-2008 07:08 AM
dhc8guru Senior Heliman Location: Texas
No interaction issues. Everytime I rotate the tail, the heli moves off its vertical axis. Hard, fast piro's the whole heli makes an occalating rotation rather than rotating about its vertical axis.
07-01-2008 03:57 PM
jpla010 Senior Heliman Location: Auckland, New Zealand
As long as you only have one tail boom and tail rotor you will experience this, because the tail provides both a sideways force (unwanted) and a moment force (needed to counteract main blade torque) to the helis C.O.G This is also the reason why you have to lean your heli slightly in hover to stop the tail pushing it sideways.
Jonathon
07-02-2008 05:23 AM
JAGNZ Elite Veteran Location: Auckland, New Zealand
Yup Jonny you are right and from memory that unwanted effect is called Translating Tendency.
