Brians

Would winch/skyline have been an option? @Big J

Good points @Big J I didn't consider the smaller machines travel further away from the roots of the retained trees due to their narrower footprint. Also, as you outlined in your example, the smaller machine has less chance of breaking the surface.

I've attached the thesis for reference, it's old but is a good study. It notes that the damage is normally done in the first 6 passes and subsequent passes don't add much in terms of damage so that would add to your argument for using smaller machines: https://research.thea.ie/bitstream/handle/20.500.12065/1409/Cyril_Furey.pdf?sequence=1&isAllowed=y

Unfortunately, in Ireland, from what I can see there doesn't seem to be much demand for the smaller machines as most forestry owners will go for the lowest price regardless of they type of machine proposed to do the work.

Great pics @Big J delighted to see the Vimek is working out for you. Seems to be a great machine. I recently read a thesis that showed that bigger machines were actually more low impact in thinnings than smaller machines as they have to make less passes to get the timber out. I'd be interested in your thoughts on this if you wouldn't mind...

And do you still fell by hand and process with the Kranmann P25?

How do you plan to transport the Vimek since you won't be able to tow it on a 4X4? This will increase transport costs I assume.

Hi @Big J I've really enjoyed reading this thread. It's been quite a journey for you. If you knew 2 years ago what you know now would you still have went for the logbullet or would you have gone straight for the Vimek?

Hi Ross, did you take the plunge with the logbullet? I'm also based in Ireland and am researching machines that could be used for ctf work. Thanks