Thanks
The guy was is going to burn it all himself, in his own time. The fire ban for the area has just ended.
We use that setup a lot John....its just that I dont video every job. But this particular location was too good to miss. Multislinging like that has its place: Its obviously quick, it keeps the line redirected in a way that the high-point doesnt get side-loaded so much, rather it gets compressed. These were tall bendy trees so that was an important consideration. The climber doesn't have to keep reaching or swinging out to grab the line to sling the next limb either.
Were it doesn't help is if you have to balance and swing limbs 180 degrees.... say, you're working on the low stuff over a building or other obstacle. Same as conventional rigging, your best advantage is to have a high rigging point so the line angle is suitably acute, so the limb is supported as it moves from the from one direction to the other. With a low rigging point the line angle is too wide, so the limb gets no support and just folds. Zipline rigging is no different in that sense.....only you have to pull hard on the line to guide and support the limb as it swings around. I made a vid a while ago called zipline-swinging limbs. It shows the exact situation I described here.
These firs, however had lots of room below, so they didnt need to be balanced.
I got some more footage today though, from the next tree across. In the clips I tried to explain what my plan was and why. Hopefully the camera picked up my voice ok. I'll put it together if it worked. I got a couple pics here of the top coming off, not as big a tree but still there were decisions to be made to give me a greater margin of safety. That was the point of it. Ziplining looks cool and all, on videos etc....but essentially your side-loading the tree, so you'd better think it through. Hopefully the vid came out.
hyper noodles aint my thing.
