Mda1701d
Member
Hello again to all.
Just spent hours doing FBL conversion to my 450 clone, using all genuine Align bits. First thing to note was that the rotor head upgrade kit does not come with the feathering shaft or thrust bearings, I had to order separately. Also, I knew it didnt come with the swash, so I got one of these as well.
The centre of the head did not fit well, with far too much slack around the Jesus bolt, so I changed it for the Dominator type, with clamp at the bottom.
I built it all very carefully, servos at 90, level swash, 11 deg pitch, 8 deg cyclic, set the tail up etc. The only part of the head carried over was the cheaper carbon blades I was flying with the flybar. 3GX flashed to v.5, and settings on the PC as per Tonys exellent vid.
First spool up was to check blade tracking, and all seemed well, so a charged Lipo was strapped in, and time for a hover test.
As the heli reached mid stick, and began to get light on the skids, it began to pitch to the left, so I popped the stick up a little quicker to clear the ground. Heli almost went inverted, tipping over to the left!!! The resulting contact stripped all three servos.
Not to be put off, I ordered three new Align cyclics, and some new Align blades.
I've spent another week of evenings rebuilding it, setting up again etc, but couldn't see a reason for the tip over. The only possible problem could be that I had the wires to the 3gx quite tight, could have been transfering vibes?
The wiring is now re routed to be more slack.
I done another spool test, and the swash seemed to sit nice and level at mid stick, even after being on the ground running for a while.
Our grass isn't bowling green smooth, but not bad, any more thoughts anyone?? Nervous about the launch now!!!
Thanks!!
Just spent hours doing FBL conversion to my 450 clone, using all genuine Align bits. First thing to note was that the rotor head upgrade kit does not come with the feathering shaft or thrust bearings, I had to order separately. Also, I knew it didnt come with the swash, so I got one of these as well.
The centre of the head did not fit well, with far too much slack around the Jesus bolt, so I changed it for the Dominator type, with clamp at the bottom.
I built it all very carefully, servos at 90, level swash, 11 deg pitch, 8 deg cyclic, set the tail up etc. The only part of the head carried over was the cheaper carbon blades I was flying with the flybar. 3GX flashed to v.5, and settings on the PC as per Tonys exellent vid.
First spool up was to check blade tracking, and all seemed well, so a charged Lipo was strapped in, and time for a hover test.
As the heli reached mid stick, and began to get light on the skids, it began to pitch to the left, so I popped the stick up a little quicker to clear the ground. Heli almost went inverted, tipping over to the left!!! The resulting contact stripped all three servos.
Not to be put off, I ordered three new Align cyclics, and some new Align blades.
I've spent another week of evenings rebuilding it, setting up again etc, but couldn't see a reason for the tip over. The only possible problem could be that I had the wires to the 3gx quite tight, could have been transfering vibes?
The wiring is now re routed to be more slack.
I done another spool test, and the swash seemed to sit nice and level at mid stick, even after being on the ground running for a while.
Our grass isn't bowling green smooth, but not bad, any more thoughts anyone?? Nervous about the launch now!!!
Thanks!!
