Dr.Ben
Elite Veteran
Location: Richmond, VA, USA
My Posts This: Topic Forum | I've followed the problems that have sometimes occurred with the gears in MA models for years and years. In that time, I guess I've accumulated well over 250 gallons on the gear sets in only a few models. All with GY502's. I'm not even counting the countless hours on models since 1987 with other gyros. I've never had to replace gears with only a few flights on them. I have one set due to come out, but they have so many gallons on them that I'm embarassed to say how many. And they're speed up gears no less. Even back when Todd and Jason were flying the plastic tail cases on the early Fury (yes, with 60's, but harder than the vast majority of pilots ever will), they rarely, if ever had total gear failures. They did wear out sets, but never in ten flights to the best of my knowledge. Whether metal case or plastic, it's still pretty easy to set a BAD mesh that feels OK. It's especially easy to do in the plastic cases. I spend an hour or more setting the mesh in my plastic cases, often looking at the gears with magnification to ensure the teeth are set exactly square to each other. If one gear is set deep to the other, the resulting mesh will seem slop free, but it'll fail in a hurry. Then I grease the tail cases. Often. Frequently. A LOT. If all the shafts were indeed loctited to the shafts, I'd bet all my models that the gears weren't meshing squarely to each other. They just don't fail in that little time unless something in the set up was off to begin with, and especially if a 601 gyro isn't in use. Half off parts sounds like a nice offer to me.
Ben Minor |
). The tail gears wore down fairly fast as the machine was being pushed very hard. I knew I needed a metal tail box to do such manuevers and so I am not upset about it. In your post you say that the tail box was not upgraded to "make" it into an Extreme, yet are upset when the unit fails. The Fury Extreme has a metal tail box for that very reason. The big block motors have more than enough power to make some standard parts fail. The Fury line has done the best job of evolving for the application of any helicopter in history. Most pilots like to add upgrades to their machines, but may not want to add neccessary parts required to do hard manuevers with the newly evolved technology (namely the big block motors).
