Very artful drop in big wood!
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i'd call this 'snipe' a type of step (or slide?)Dutchman;
in that it blocks 1 side of (fairly narrow) face, pushing across to the other face that it offers as path of least resistance.
(terminology check:Add tapered Hinge for type of swing dutchy?)
This also shows working the L-R sides of face/front field as independents(not generically as 1 system across face), like we do backfield/tapered hinge.
Early close/push of step dutch is the equal/opposite answer to early(compared to the non-tapered side) stretch/pull of tapered hinge.
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i'd also use this dutch close or slide for head clearance (though on smaller stuff);
If clear path for head was to roll aside similarly, or even then tuck back in across opposite direction,
in fact the obstructing tree heads could help it roll so;
pushing head with high leverage distance to hinge as pivot;
plot so hinge/face and head pushes work in harmony/not conflict to usher tree aside; seeking path of least resistance.
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i always think the slide rather than flat dutch can be better/safer(but depends on how much you need to 'risk' getting the effect):
Slide, rather than step down/block out :Easier to make than taking block out 1 side to lower face &
Mechanix to me take less abrupt change:
Flat dutch more likely to switch from hyper-compressed part of hinge as leveraged pivot distance from holding wood
to most pressure on dutch close, making close not hinge; the pivot of mechanix suddenly(in schematic drawing),
with immediately longer leveraged distance suddenly to holding wood.
This (i think) can give more of the fade/fake to sideLean side some, then pull across sweep to opposite side.
Actual use i've kinda gotten more of a C or sideways V action in felling,
(hyperloads, then reacts; tapered hinge alone more consistent, progressive pulls i think)
Dutch physics safer in climb/rig usage load ranges :
plot kerf close on bottom(like sidelean is down), tapered hinge at top to try sweep across
and bucking top bind:
placing kerf close high(like high is sidelean) at most intense pinch to push across to less intense pinch side close as tapered hinge pulls on lower side of hinge too.
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Always liked examining things across the loading ranges to test and prove theories in all 3 phases: climbing, felling, bucking.
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In simplification i look at push in face while pulling back on opposite side as same with grocery cart:
Hold right hand solid and pull back with left, not as dramatic as push with right and pull back with left
effects more magnified, the farther apart(leveraged distance) R_push and L_pull are;
more effective with case of beer back towards you, rather than in nose of cart etc.
(shows center of balance adjustment in otherwise empty cart; and reason to buy beer)