Originally Posted by
noooby
Yes, the gearboxes have "run dry" times. From memory the MGB is 53 minutes. I don't know about the IGB or TGB but they're under a lot less stress than the MGB.
As far as the "smoke/unburnt fuel" on engine start, it looks like steam to me. Had this quite a lot with 139 starts in cold weather with hot engines. Moisture would condense in the exhausts and give quite a good puff on engine start. Of course, the 169 doesn't have the monstrous exhausts of the 139!
Anyone know the critical wind quadrant/velocity for LTE????!
STEAM 😩 I sort of promised myself to try to be a kinder person. For the love of god though! It’s unburnt atomised fuel. Not entirely normal but utterly harmless. You can take that as fact.
LTE - loss of tail rotor effectiveness. Jesus! .............
From the video......it looks very much like a sudden loss of TR thrust. That’s all that should be inferred. There are numerous possible reasons for that condition........none of which can be identified from the evidence in the video.