What is premium angle to pull the line from for best rotation on the hinge?
As we look at the static properties, angles and forces; how do they change at movement/ rotation? Does their previous loaded inertia have any consequence on the changed position (brief/sharp, rotational force?).
i think that for sure the maximum hinge tension strength is set at first folding, as an equal and opposite type of response; begins to fail. If tree will fall of it's own weight without stalling or sawing at that point; hinge is maximum strength; and acceleration of force minimum. So, that any force, even brief, sharp force; scheduled at first folding, increases the hinge strength in response.
i think the over the top lacing, cradles the load more; increases the number of loaded points on the pulling axis, giving more stable, focused bringing forward. Not necessarily more power there(that point), but better use of it i think; like less wobble in tire, more smooth, directed force.
The line at the bend is pushing down, the hitch is pulling up. There are tons pushing down, but nothing else pulling up; at rotation, angle shift of spar this unique event might give some measure of advantage, where none was before. On a rotation, that up pull (from hitch) compounding the down pushes on other end.
These are some of the more elusive points i've had to consider in watching this for years and thinking there is use for the bent line in rigging and felling. In rigging the weight of the load becomes the source of pull on the restricting line, bent around the load; to give similar, observable forces (i think). Especially on slow rotating stuff, you are muscling through on the hinge. In between fall and stall; extending first folding of hinge. Where, it won't fall on it's own, but line pull doesn't let it stall, i think the effect of the lacing over the top/ around the load; is most noticeable as a force of it's own.
But, it has driven me
'ier!
Some old drawings.